/* =============================================
   GARAGEIQ — Blue & Steel Theme
   ============================================= */

:root {
  --bg-base:      #0c1118;
  --bg-surface:   #131c27;
  --bg-card:      #17212e;
  --bg-card-hover:#1d2a3a;
  --bg-input:     #111a24;
  --border:       #1e2e40;
  --border-bright:#2a4060;
  --border-glow:  rgba(59,130,246,0.35);
  --accent:       #3b82f6;
  --accent-dark:  #2563eb;
  --accent-glow:  rgba(59,130,246,0.12);
  --accent2:      #38bdf8;
  --text-primary: #e4edf6;
  --text-secondary:#7a9ab8;
  --text-muted:   #3d5570;
  --green:        #22c55e;
  --red:          #f87171;
  --yellow:       #fbbf24;
  --blue:         #3b82f6;
  --radius:       12px;
  --radius-lg:    18px;
  --shadow:       0 8px 32px rgba(0,0,0,0.55);
  --shadow-accent:0 0 40px rgba(59,130,246,0.22);
  --font-display: 'Rajdhani', sans-serif;
  --font-body:    'Inter', sans-serif;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
.hidden { display: none !important; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  background: var(--bg-base);
  color: var(--text-primary);
  min-height: 100vh;
  overflow-x: hidden;
}

/* Dot grid pattern */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image: radial-gradient(rgba(59,130,246,0.18) 1px, transparent 1px);
  background-size: 32px 32px;
  pointer-events: none;
  z-index: 0;
  opacity: 0.45;
}

/* Ambient hero glow */
body::after {
  content: '';
  position: fixed;
  top: -160px; left: 50%; transform: translateX(-50%);
  width: 900px; height: 600px;
  background: radial-gradient(ellipse at center, rgba(59,130,246,0.10) 0%, transparent 70%);
  pointer-events: none;
  z-index: 0;
}

/* ---- TYPOGRAPHY ---- */
h1, h2, h3, h4 { font-family: var(--font-display); letter-spacing: 0.02em; }
h1 { font-size: clamp(2rem, 5vw, 3.5rem); font-weight: 700; line-height: 1.08; letter-spacing: -0.01em; }
h2 { font-size: clamp(1.3rem, 3vw, 1.8rem); font-weight: 600; }
h3 { font-size: 1.15rem; font-weight: 600; }
p  { line-height: 1.7; color: var(--text-secondary); }

.accent {
  background: linear-gradient(135deg, #3b82f6 0%, #38bdf8 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ---- SCROLLBAR ---- */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: var(--bg-base); }
::-webkit-scrollbar-thumb { background: var(--border-bright); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--accent); }

/* ---- HEADER ---- */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(10,15,22,0.85);
  backdrop-filter: blur(20px) saturate(1.4);
  -webkit-backdrop-filter: blur(20px) saturate(1.4);
  border-bottom: 1px solid rgba(59,130,246,0.1);
  box-shadow: 0 1px 0 rgba(255,255,255,0.04), 0 4px 24px rgba(0,0,0,0.3);
}
.header-inner {
  max-width: 1400px; margin: 0 auto;
  padding: 0 20px;
  min-height: 50px;
  display: flex; align-items: center; gap: 12px;
  flex-wrap: wrap;
}
.logo {
  font-family: var(--font-display);
  font-size: 1.35rem; font-weight: 700; letter-spacing: 0.03em;
  cursor: pointer; display: flex; align-items: center; gap: 8px;
  user-select: none; color: var(--text-primary);
}
.logo-icon {
  font-size: 1.15rem; animation: spin 8s linear infinite; display: inline-block;
  filter: drop-shadow(0 0 6px rgba(59,130,246,0.6));
}
@keyframes spin { to { transform: rotate(360deg); } }

/* .main-nav — controlled entirely by the hamburger block below */
.nav-btn {
  background: none; border: none;
  color: var(--text-secondary);
  font-family: var(--font-body); font-size: 0.78rem; font-weight: 500;
  padding: 5px 8px; border-radius: 6px;
  cursor: pointer; transition: all 0.15s;
  white-space: nowrap;
}
.nav-btn:hover { color: var(--text-primary); background: rgba(255,255,255,0.06); }
.nav-btn.active { color: #60a5fa; background: rgba(59,130,246,0.12); }

.header-badge {
  font-size: 0.75rem; color: var(--text-muted);
  border: 1px solid var(--border); border-radius: 20px;
  padding: 4px 12px; white-space: nowrap;
}

/* ---- VIEWS ---- */
.view { display: none; }
.view.active { display: block; }
main { position: relative; z-index: 1; }

/* ---- HERO ---- */
.hero {
  position: relative;
  padding: 80px 24px 60px;
  max-width: 1400px; margin: 0 auto;
  overflow: hidden;
}
.hero-bg-text {
  position: absolute;
  top: 50%; left: 50%; transform: translate(-50%, -50%);
  font-family: var(--font-display);
  font-size: clamp(100px, 20vw, 260px);
  font-weight: 900;
  color: rgba(37,99,235,0.05);
  white-space: nowrap;
  pointer-events: none;
  user-select: none;
  letter-spacing: 0.1em;
}
.hero-content { position: relative; z-index: 1; max-width: 700px; }
.hero-sub { font-size: 1.15rem; color: #6b90ae; margin: 14px 0 36px; letter-spacing: 0.01em; line-height: 1.6; }
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }

.hero-stats {
  display: flex; gap: 16px; flex-wrap: wrap;
  margin-top: 60px;
}
.stat-card {
  background: linear-gradient(135deg, rgba(30,40,56,0.9) 0%, rgba(23,33,46,0.9) 100%);
  border: 1px solid var(--border);
  border-top: 1px solid rgba(255,255,255,0.07);
  border-radius: var(--radius);
  padding: 20px 28px;
  min-width: 150px;
  box-shadow: 0 4px 16px rgba(0,0,0,0.3);
  transition: transform 0.2s, box-shadow 0.2s;
}
.stat-card:hover { transform: translateY(-3px); box-shadow: 0 8px 28px rgba(0,0,0,0.4); }
.stat-num {
  font-family: var(--font-display);
  font-size: 2rem; font-weight: 700;
  background: linear-gradient(135deg, #3b82f6, #38bdf8);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
}
.stat-label { font-size: 0.8rem; color: var(--text-muted); margin-top: 2px; }

/* ---- BUTTONS ---- */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--font-body); font-size: 0.9rem; font-weight: 600;
  padding: 10px 22px; border-radius: var(--radius);
  border: none; cursor: pointer;
  transition: all 0.22s cubic-bezier(0.4, 0, 0.2, 1);
  white-space: nowrap; text-decoration: none; letter-spacing: 0.01em;
}
.btn:active { transform: translateY(0) scale(0.98) !important; }
.btn-primary {
  background: linear-gradient(135deg, #3b82f6 0%, #2563eb 100%);
  color: #fff;
  box-shadow: 0 2px 12px rgba(59,130,246,0.35);
}
.btn-primary:hover {
  background: linear-gradient(135deg, #60a5fa 0%, #3b82f6 100%);
  transform: translateY(-2px);
  box-shadow: 0 6px 24px rgba(59,130,246,0.5);
}
.btn-secondary {
  background: var(--bg-card); color: var(--text-primary);
  border: 1px solid var(--border-bright);
}
.btn-secondary:hover { background: var(--bg-card-hover); border-color: var(--accent); }
.btn-ghost {
  background: transparent; color: var(--text-secondary);
  border: 1px solid var(--border);
}
.btn-ghost:hover { background: var(--bg-card); color: var(--text-primary); }
.btn-sm { padding: 6px 14px; font-size: 0.82rem; }

/* ---- SECTIONS ---- */
.quick-search-section,
.popular-makes-section,
.features-section {
  max-width: 1400px; margin: 0 auto;
  padding: 48px 24px;
}
.section-header { margin-bottom: 28px; }
.section-header p { margin-top: 4px; }

/* ---- SEARCH TABS ---- */
.quick-search-card {
  background: linear-gradient(160deg, rgba(30,42,58,0.9) 0%, rgba(17,25,36,0.9) 100%);
  border: 1px solid var(--border);
  border-top: 1px solid rgba(255,255,255,0.07);
  border-radius: var(--radius-lg);
  padding: 28px;
  box-shadow: 0 8px 40px rgba(0,0,0,0.4), inset 0 1px 0 rgba(255,255,255,0.04);
  backdrop-filter: blur(8px);
}
.search-tabs { display: flex; gap: 8px; margin-bottom: 24px; border-bottom: 1px solid var(--border); padding-bottom: 16px; }
.tab-btn {
  background: none; border: none; cursor: pointer;
  font-family: var(--font-body); font-size: 0.9rem; font-weight: 500;
  color: var(--text-muted); padding: 6px 16px; border-radius: 6px;
  transition: all 0.2s;
}
.tab-btn:hover { color: var(--text-primary); }
.tab-btn.active { color: var(--accent); background: var(--accent-glow); }
.tab-content { display: none; }
.tab-content.active { display: block; }

/* ---- FILTER ROW ---- */
.filter-row {
  display: flex; gap: 12px; align-items: flex-end; flex-wrap: wrap;
}
.filter-group { display: flex; flex-direction: column; gap: 6px; flex: 1; min-width: 140px; }
.filter-group label {
  font-size: 0.75rem; font-weight: 600; letter-spacing: 0.08em;
  color: var(--text-muted); text-transform: uppercase;
}
select, input[type="text"] {
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text-primary);
  font-family: var(--font-body); font-size: 0.9rem;
  padding: 10px 14px;
  outline: none; width: 100%;
  transition: border-color 0.2s;
  appearance: none;
  -webkit-appearance: none;
}
select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23888' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  padding-right: 36px;
  cursor: pointer;
}
select:focus, input:focus { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-glow), 0 0 16px rgba(59,130,246,0.1); }
select:disabled { opacity: 0.4; cursor: not-allowed; }

/* ---- VIN INPUT ---- */
.vin-input-row { display: flex; gap: 12px; align-items: center; flex-wrap: wrap; }
.vin-input-row input { flex: 1; min-width: 200px; }
.vin-hint { font-size: 0.78rem; color: var(--text-muted); margin-top: 8px; }

.vin-field {
  font-family: 'Courier New', monospace !important;
  font-size: 1rem !important; letter-spacing: 0.12em;
  text-transform: uppercase;
}

.vin-anatomy { margin-bottom: 20px; }
.vin-label-row { display: flex; gap: 8px; font-family: 'Courier New', monospace; font-size: 0.85rem; }
.vin-segment {
  background: var(--bg-input); border: 1px solid var(--border);
  padding: 4px 8px; border-radius: 4px; color: var(--accent); text-align: center;
}
.vin-desc-row { display: flex; gap: 8px; margin-top: 4px; font-size: 0.72rem; color: var(--text-muted); }
.vin-desc-row span { min-width: 9ch; text-align: center; }

.vin-validation { margin-top: 8px; font-size: 0.82rem; min-height: 20px; }
.vin-valid { color: var(--green); }
.vin-invalid { color: var(--red); }

/* ---- POPULAR MAKES ---- */
.makes-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: 12px;
}
.make-chip {
  background: linear-gradient(160deg, var(--bg-card) 0%, var(--bg-base) 100%);
  border: 1px solid var(--border);
  border-top: 1px solid rgba(255,255,255,0.05);
  border-radius: var(--radius);
  padding: 16px 12px;
  text-align: center;
  cursor: pointer; transition: all 0.2s;
  font-family: var(--font-display);
  font-size: 1rem; font-weight: 600;
  color: var(--text-secondary);
}
.make-chip:hover {
  border-color: var(--border-glow);
  color: var(--text-primary);
  background: rgba(59,130,246,0.08);
  transform: translateY(-3px);
  box-shadow: 0 8px 24px rgba(0,0,0,0.3), 0 0 0 1px var(--border-glow);
}
.make-chip .make-icon { font-size: 1.6rem; display: block; margin-bottom: 6px; }

/* ---- FEATURES ---- */
.features-section {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 20px;
}
.features-section .section-header { grid-column: 1/-1; }
.feature-card {
  background: linear-gradient(160deg, rgba(30,42,58,0.95) 0%, rgba(19,28,39,0.95) 100%);
  border: 1px solid var(--border);
  border-top: 1px solid rgba(255,255,255,0.06);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  transition: all 0.25s;
  position: relative; overflow: hidden;
}
.feature-card::before {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(135deg, rgba(59,130,246,0.05) 0%, transparent 60%);
  opacity: 0; transition: opacity 0.3s;
}
.feature-card:hover { border-color: var(--border-glow); box-shadow: 0 0 0 1px var(--border-glow), var(--shadow-accent); }
.feature-card:hover::before { opacity: 1; }
.feature-icon {
  font-size: 2rem; margin-bottom: 14px;
  display: inline-flex; align-items: center; justify-content: center;
  width: 52px; height: 52px;
  background: rgba(59,130,246,0.1);
  border: 1px solid rgba(59,130,246,0.2);
  border-radius: 12px;
}
.feature-card h3 { margin-bottom: 8px; }

/* ---- CARD ---- */
.card {
  background: linear-gradient(160deg, rgba(28,40,56,0.95) 0%, rgba(17,26,38,0.95) 100%);
  border: 1px solid var(--border);
  border-top: 1px solid rgba(255,255,255,0.06);
  border-radius: var(--radius-lg);
  box-shadow: 0 4px 24px rgba(0,0,0,0.35);
}

/* ---- PAGE HEADER ---- */
.page-header {
  max-width: 1400px; margin: 0 auto;
  padding: 48px 24px 24px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 32px;
}
.page-header p { margin-top: 6px; }
.page-header h1 { position: relative; display: inline-block; }

/* Section header accent line */
.section-header h2 {
  position: relative;
  padding-left: 16px;
}
.section-header h2::before {
  content: '';
  position: absolute; left: 0; top: 50%; transform: translateY(-50%);
  width: 4px; height: 70%;
  background: linear-gradient(180deg, #3b82f6, #38bdf8);
  border-radius: 2px;
}

/* ---- BROWSE ---- */
#view-browse .browse-filters {
  max-width: 1400px; margin: 0 auto 32px;
  padding: 24px 28px;
}
#view-browse .page-header { margin-bottom: 0; }

.browse-results {
  max-width: 1400px; margin: 0 auto;
  padding: 0 24px 48px;
}
.results-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 20px;
  margin-top: 24px;
}
.vehicle-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px;
  cursor: pointer; transition: all 0.25s;
  position: relative; overflow: hidden;
}
.vehicle-card::before {
  content: '';
  position: absolute; top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--accent), var(--accent2));
  opacity: 0; transition: opacity 0.2s;
}
.vehicle-card:hover { border-color: var(--border-bright); background: var(--bg-card-hover); transform: translateY(-3px); box-shadow: var(--shadow); }
.vehicle-card:hover::before { opacity: 1; }
.vehicle-card-make { font-size: 0.75rem; font-weight: 600; letter-spacing: 0.1em; text-transform: uppercase; color: var(--accent); margin-bottom: 4px; }
.vehicle-card-model { font-family: var(--font-display); font-size: 1.3rem; font-weight: 700; color: var(--text-primary); }
.vehicle-card-year { font-size: 0.85rem; color: var(--text-muted); margin-top: 4px; }
.vehicle-card-tags { display: flex; gap: 6px; flex-wrap: wrap; margin-top: 14px; }
.tag {
  font-size: 0.72rem; font-weight: 600; padding: 3px 9px;
  border-radius: 20px; letter-spacing: 0.05em;
}
.tag-default { background: rgba(255,255,255,0.06); color: var(--text-muted); }
.tag-accent  { background: var(--accent-glow); color: var(--accent); }

/* ---- EMPTY STATE ---- */
.empty-state {
  text-align: center; padding: 80px 20px;
  color: var(--text-muted);
}
.empty-icon { font-size: 3.5rem; margin-bottom: 16px; }

/* ---- VIN VIEW ---- */
#view-vin .vin-search-card {
  max-width: 1400px; margin: 0 auto 32px;
  padding: 32px;
}
#view-vin .page-header { margin-bottom: 0; }
#vin-results {
  max-width: 1400px; margin: 0 auto;
  padding: 0 24px 48px;
}

/* ---- VEHICLE DETAIL ---- */
.vehicle-detail-wrap {
  max-width: 1400px; margin: 0 auto;
  padding: 40px 24px 80px;
}
.back-btn {
  display: inline-flex; align-items: center; gap: 6px;
  background: none; border: 1px solid var(--border);
  color: var(--text-secondary); font-size: 0.85rem;
  padding: 8px 16px; border-radius: var(--radius);
  cursor: pointer; margin-bottom: 28px; transition: all 0.2s;
}
.back-btn:hover { border-color: var(--accent); color: var(--accent); }

.vehicle-hero-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 36px;
  margin-bottom: 28px;
  position: relative; overflow: hidden;
}
.vehicle-hero-card::after {
  content: '🚗';
  position: absolute; right: 30px; top: 50%; transform: translateY(-50%);
  font-size: 8rem; opacity: 0.04;
  pointer-events: none;
}
.vehicle-hero-make { font-size: 0.8rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.12em; color: var(--accent); margin-bottom: 4px; }
.vehicle-hero-title { font-family: var(--font-display); font-size: clamp(1.8rem, 4vw, 3rem); font-weight: 700; color: var(--text-primary); }
.vehicle-hero-year { color: var(--text-muted); margin-top: 4px; font-size: 1rem; }
.vehicle-hero-badges { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 20px; }
.badge {
  font-size: 0.78rem; font-weight: 600; padding: 5px 14px;
  border-radius: 20px; border: 1px solid;
}
.badge-orange { background: var(--accent-glow); color: var(--accent); border-color: var(--accent); }
.badge-gray   { background: rgba(255,255,255,0.04); color: var(--text-muted); border-color: var(--border); }
.badge-green  { background: rgba(34,197,94,0.1); color: var(--green); border-color: var(--green); }
.badge-red    { background: rgba(239,68,68,0.1); color: var(--red); border-color: var(--red); }

.detail-tabs { display: flex; gap: 4px; border-bottom: 1px solid var(--border); margin-bottom: 28px; overflow-x: auto; }
.detail-tab {
  background: none; border: none; cursor: pointer;
  font-family: var(--font-body); font-size: 0.88rem; font-weight: 500;
  color: var(--text-muted); padding: 12px 20px;
  border-bottom: 2px solid transparent; margin-bottom: -1px;
  white-space: nowrap; transition: all 0.2s;
}
.detail-tab:hover { color: var(--text-primary); }
.detail-tab.active { color: var(--accent); border-bottom-color: var(--accent); }

.detail-panel { display: none; }
.detail-panel.active { display: block; }

.specs-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 14px;
}
.spec-item {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px 20px;
  display: flex; flex-direction: column; gap: 4px;
}
.spec-label { font-size: 0.73rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.08em; color: var(--text-muted); }
.spec-value { font-size: 0.95rem; font-weight: 600; color: var(--text-primary); }
.spec-value.highlight { color: var(--accent); }

/* Recall/Complaint cards */
.recall-list, .complaint-list { display: flex; flex-direction: column; gap: 16px; }
.recall-item, .complaint-item {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-left: 3px solid var(--yellow);
  border-radius: var(--radius);
  padding: 20px 24px;
}
.complaint-item { border-left-color: var(--red); }
.recall-item h4, .complaint-item h4 { font-size: 0.95rem; margin-bottom: 6px; color: var(--text-primary); }
.recall-item p, .complaint-item p { font-size: 0.85rem; color: var(--text-secondary); }
.recall-meta, .complaint-meta { display: flex; gap: 16px; flex-wrap: wrap; margin-top: 10px; }
.meta-pill {
  font-size: 0.72rem; padding: 3px 10px;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border);
  border-radius: 20px; color: var(--text-muted);
}
.no-data-msg {
  text-align: center; padding: 48px;
  color: var(--text-muted); font-size: 0.9rem;
}
.no-data-icon { font-size: 2.5rem; margin-bottom: 10px; }

/* Safety ratings */
.ratings-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 16px; }
.rating-card {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px; text-align: center;
}
.rating-stars { font-size: 1.6rem; margin: 8px 0; }
.rating-name { font-size: 0.78rem; color: var(--text-muted); }
.rating-num { font-family: var(--font-display); font-size: 2rem; font-weight: 700; color: var(--accent); }

/* Common issues */
.issues-list { display: flex; flex-direction: column; gap: 14px; }
.issue-item {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px 22px;
}
.issue-header { display: flex; align-items: center; gap: 10px; margin-bottom: 8px; }
.issue-severity {
  font-size: 0.7rem; font-weight: 700; padding: 3px 10px;
  border-radius: 20px; text-transform: uppercase;
}
.sev-high { background: rgba(239,68,68,0.15); color: var(--red); }
.sev-med  { background: rgba(234,179,8,0.15);  color: var(--yellow); }
.sev-low  { background: rgba(34,197,94,0.15);  color: var(--green); }
.issue-title { font-weight: 600; font-size: 0.95rem; }
.issue-desc { font-size: 0.85rem; color: var(--text-secondary); }
.issue-fix  { font-size: 0.82rem; color: var(--green); margin-top: 6px; }

/* ---- GUIDES VIEW ---- */
#view-guides .page-header { margin-bottom: 0; }
.guides-filter-bar {
  max-width: 1400px; margin: 24px auto;
  padding: 0 24px;
  display: flex; gap: 8px; flex-wrap: wrap;
}
.guide-cat-btn {
  background: var(--bg-card); border: 1px solid var(--border);
  color: var(--text-secondary); font-size: 0.85rem; font-weight: 500;
  padding: 8px 18px; border-radius: 20px;
  cursor: pointer; transition: all 0.2s;
}
.guide-cat-btn:hover { border-color: var(--accent); color: var(--accent); }
.guide-cat-btn.active { background: var(--accent-glow); border-color: var(--accent); color: var(--accent); }

.guides-grid {
  max-width: 1400px; margin: 0 auto;
  padding: 0 24px 60px;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 20px;
}
.guide-card {
  background: linear-gradient(160deg, rgba(28,40,56,0.95) 0%, rgba(17,26,38,0.95) 100%);
  border: 1px solid var(--border);
  border-top: 1px solid rgba(255,255,255,0.06);
  border-radius: var(--radius-lg);
  padding: 28px;
  cursor: pointer;
  transition: all 0.22s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative; overflow: hidden;
}
.guide-card::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 2px;
  background: linear-gradient(90deg, var(--accent), var(--accent2));
  opacity: 0; transition: opacity 0.2s;
}
.guide-card:hover { border-color: var(--border-glow); transform: translateY(-3px); box-shadow: 0 12px 40px rgba(0,0,0,0.4), var(--shadow-accent); }
.guide-card:hover::before { opacity: 1; }
.guide-card-icon { font-size: 2.2rem; margin-bottom: 14px; }
.guide-card-cat {
  font-size: 0.7rem; font-weight: 700; text-transform: uppercase;
  letter-spacing: 0.1em; color: var(--accent); margin-bottom: 6px;
}
.guide-card h3 { margin-bottom: 8px; }
.guide-card p { font-size: 0.85rem; }
.guide-card-footer { display: flex; align-items: center; justify-content: space-between; margin-top: 18px; }
.guide-difficulty {
  font-size: 0.72rem; font-weight: 600; padding: 3px 10px;
  border-radius: 20px;
}
.diff-easy   { background: rgba(34,197,94,0.15);  color: var(--green); }
.diff-medium { background: rgba(234,179,8,0.15);  color: var(--yellow); }
.diff-hard   { background: rgba(239,68,68,0.15);  color: var(--red); }
.guide-time { font-size: 0.78rem; color: var(--text-muted); }

/* ---- GUIDE DETAIL ---- */
.guide-detail-wrap {
  max-width: 900px; margin: 0 auto;
  padding: 40px 24px 80px;
}
.guide-detail-header {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 36px;
  margin-bottom: 32px;
}
.guide-detail-header .guide-card-cat { font-size: 0.8rem; }
.guide-detail-header h1 { font-size: clamp(1.6rem, 4vw, 2.4rem); margin: 8px 0 14px; }
.guide-meta-row { display: flex; gap: 16px; flex-wrap: wrap; align-items: center; }

.guide-section {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px 32px;
  margin-bottom: 20px;
}
.guide-section h3 {
  color: var(--accent); border-bottom: 1px solid var(--border);
  padding-bottom: 12px; margin-bottom: 20px;
  display: flex; align-items: center; gap: 8px;
}

.tools-list, .parts-list {
  display: flex; flex-wrap: wrap; gap: 10px;
}
.tool-chip, .part-chip {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: 8px; padding: 8px 14px;
  font-size: 0.85rem; color: var(--text-primary);
}
.part-chip { border-color: var(--accent); color: var(--accent); background: var(--accent-glow); }

.steps-list { counter-reset: step-counter; list-style: none; display: flex; flex-direction: column; gap: 16px; }
.step-item {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px 20px 18px 60px;
  position: relative;
}
.step-item::before {
  counter-increment: step-counter;
  content: counter(step-counter);
  position: absolute; left: 16px; top: 50%; transform: translateY(-50%);
  width: 30px; height: 30px;
  background: var(--accent); color: #fff;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-weight: 700; font-size: 0.85rem;
  font-family: var(--font-display);
}
.step-item h4 { font-size: 0.95rem; margin-bottom: 4px; color: var(--text-primary); }
.step-item p  { font-size: 0.85rem; }

.warning-box {
  background: rgba(239,68,68,0.08);
  border: 1px solid rgba(239,68,68,0.3);
  border-radius: var(--radius);
  padding: 16px 20px;
  margin-bottom: 16px;
  font-size: 0.87rem; color: var(--red);
  display: flex; gap: 10px; align-items: flex-start;
}
.tip-box {
  background: rgba(59,130,246,0.08);
  border: 1px solid rgba(59,130,246,0.3);
  border-radius: var(--radius);
  padding: 16px 20px;
  font-size: 0.87rem; color: var(--blue);
  display: flex; gap: 10px; align-items: flex-start;
}

/* ---- RESULTS COUNT ---- */
.results-header {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 20px;
}
.results-count {
  font-size: 0.85rem; color: var(--text-muted);
}
.results-count strong { color: var(--accent); }

/* ---- LOADER ---- */
.loader {
  position: fixed; inset: 0; z-index: 999;
  background: rgba(0,0,0,0.7);
  display: flex; align-items: center; justify-content: center;
}
.loader.hidden { display: none; }
.loader-inner { text-align: center; }
.gear-spin {
  font-size: 3rem;
  display: inline-block;
  animation: spin 1s linear infinite;
  color: var(--accent);
}
.loader-inner p { margin-top: 12px; color: var(--text-secondary); }

/* ---- TOAST ---- */
.toast {
  position: fixed; bottom: 28px; right: 28px; z-index: 9999;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent);
  border-radius: var(--radius);
  padding: 14px 20px;
  font-size: 0.88rem;
  box-shadow: var(--shadow);
  transform: translateY(100px); opacity: 0;
  transition: all 0.3s;
  max-width: 320px;
}
.toast.show { transform: translateY(0); opacity: 1; }
.toast.error { border-left-color: var(--red); }

/* ---- FOOTER ---- */
.site-footer {
  border-top: 1px solid var(--border);
  background: var(--bg-surface);
  position: relative; z-index: 1;
}
.footer-inner {
  max-width: 1400px; margin: 0 auto;
  padding: 20px 24px;
  display: flex; gap: 24px; flex-wrap: wrap;
  align-items: center;
  font-size: 0.78rem; color: var(--text-muted);
}
.footer-inner span:first-child { font-family: var(--font-display); font-size: 1rem; color: var(--accent); margin-right: auto; }

/* ---- PROGRESS BAR ---- */
.progress-bar-wrap { background: var(--bg-surface); border-radius: 4px; height: 6px; margin-top: 6px; overflow: hidden; }
.progress-bar { height: 100%; background: linear-gradient(90deg, var(--accent), var(--accent2)); border-radius: 4px; transition: width 0.5s; }

/* =============================================
   ENGINE SELECTION MODAL
   ============================================= */
.engine-modal-overlay {
  position: fixed; inset: 0; z-index: 500;
  background: rgba(0,0,0,0.85);
  backdrop-filter: blur(8px);
  display: flex; align-items: center; justify-content: center;
  padding: 24px;
}
.engine-modal-overlay.hidden { display: none; }
.engine-modal-card {
  background: var(--bg-card);
  border: 1px solid var(--border-bright);
  border-top: 3px solid var(--accent);
  border-radius: var(--radius-lg);
  padding: 40px;
  max-width: 520px; width: 100%;
  box-shadow: 0 24px 80px rgba(0,0,0,0.6), var(--shadow-accent);
  text-align: center;
}
.engine-modal-icon { font-size: 3rem; margin-bottom: 12px; animation: spin 4s linear infinite; display: inline-block; }
.engine-modal-card h2 { margin-bottom: 10px; }
.engine-modal-card p  { margin-bottom: 20px; font-size: 0.9rem; }
.engine-modal-vehicle {
  display: inline-block;
  background: var(--accent-glow); border: 1px solid var(--accent);
  color: var(--accent); font-family: var(--font-display);
  font-size: 1.1rem; font-weight: 700;
  padding: 6px 20px; border-radius: 20px; margin-bottom: 20px;
}
.modal-engine-preview {
  display: flex; flex-wrap: wrap; gap: 8px;
  justify-content: center; margin-top: 12px;
}
.engine-modal-spec-preview { min-height: 36px; }
.engine-modal-actions { display: flex; flex-direction: column; gap: 10px; margin-top: 24px; }
.engine-modal-actions .btn { justify-content: center; }

/* =============================================
   GUIDE V2 — WORLD-CLASS LAYOUT
   ============================================= */
.guide-detail-v2 { padding-bottom: 80px; }

.guide-hero {
  position: relative; min-height: 340px;
  display: flex; align-items: flex-end;
  overflow: hidden;
  background: var(--bg-surface);
}
.guide-hero-bg {
  position: absolute; inset: 0;
  background-size: cover; background-position: center;
  filter: brightness(0.3) saturate(0.7);
  transition: opacity 0.6s;
}
.guide-hero-content {
  position: relative; z-index: 1;
  padding: 48px 40px 40px;
  max-width: 1000px;
  background: linear-gradient(to top, rgba(0,0,0,0.7) 0%, transparent 100%);
  width: 100%;
}
.guide-hero-cat {
  font-size: 0.75rem; font-weight: 700; letter-spacing: 0.15em;
  color: var(--accent); margin-bottom: 8px;
}
.guide-hero-title {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4vw, 3rem);
  font-weight: 800; color: #fff; line-height: 1.1;
  margin-bottom: 10px; text-shadow: 0 2px 20px rgba(0,0,0,0.5);
}
.guide-applies {
  font-size: 0.82rem; color: rgba(255,255,255,0.7);
  margin-bottom: 16px;
}
.guide-applies span { color: var(--accent2); font-weight: 600; }
.guide-hero-pills { display: flex; flex-wrap: wrap; gap: 8px; }
.gpill {
  font-size: 0.78rem; font-weight: 600; padding: 5px 14px;
  border-radius: 20px;
  background: rgba(255,255,255,0.12); color: #fff;
  border: 1px solid rgba(255,255,255,0.2);
  backdrop-filter: blur(4px);
}
.gpill-green  { background: rgba(34,197,94,0.25); color: var(--green); border-color: var(--green); }
.gpill-orange { background: rgba(37,99,235,0.15); color: var(--accent); border-color: var(--accent); }

/* Quick reference strip */
.quick-ref-strip {
  display: flex; flex-wrap: wrap; gap: 24px;
  background: var(--bg-surface);
  border-bottom: 1px solid var(--border);
  padding: 16px 40px;
  align-items: center;
}
.quick-ref-group { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.quick-ref-label { font-size: 0.72rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.08em; color: var(--text-muted); white-space: nowrap; }
.socket-badge {
  font-family: 'Courier New', monospace;
  font-size: 0.8rem; font-weight: 700;
  background: linear-gradient(135deg, #1a2030, #232a3a);
  border: 1px solid var(--accent);
  color: var(--accent); border-radius: 6px;
  padding: 3px 10px;
}
.socket-badge-sm { font-size: 0.72rem; padding: 2px 8px; }
.torque-badge {
  font-size: 0.75rem;
  background: rgba(239,68,68,0.08); border: 1px solid rgba(239,68,68,0.3);
  color: var(--red); border-radius: 6px; padding: 3px 10px;
}
.torque-badge strong { color: #fff; }

/* Guide body */
.guide-body { max-width: 1100px; margin: 0 auto; padding: 32px 40px; }
.guide-section-v2 {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px 32px;
  margin-bottom: 24px;
}
.guide-section-v2 h2 {
  font-family: var(--font-display);
  font-size: 1.2rem; font-weight: 700;
  margin-bottom: 20px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border);
  display: flex; align-items: center; gap: 8px;
}

/* Tool detail cards */
.tool-detail-grid { display: flex; flex-direction: column; gap: 12px; }
.tool-detail-card {
  display: flex; gap: 16px; align-items: flex-start;
  background: var(--bg-surface); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 16px;
  transition: border-color 0.2s;
}
.tool-detail-card:hover { border-color: var(--accent); }
.tool-detail-icon { font-size: 1.8rem; flex-shrink: 0; width: 40px; text-align: center; }
.tool-detail-name { font-weight: 700; font-size: 0.95rem; margin-bottom: 6px; color: var(--text-primary); }
.tool-detail-sizes { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 6px; }
.tool-detail-note { font-size: 0.78rem; color: var(--text-muted); }

/* Torque table */
.torque-table { border-radius: var(--radius); overflow: hidden; border: 1px solid var(--border); }
.torque-header {
  display: grid; grid-template-columns: 2fr 1fr 1fr 2fr;
  background: var(--bg-surface); padding: 10px 16px;
  font-size: 0.7rem; font-weight: 700; text-transform: uppercase;
  letter-spacing: 0.08em; color: var(--text-muted);
  border-bottom: 1px solid var(--border);
}
.torque-row {
  display: grid; grid-template-columns: 2fr 1fr 1fr 2fr;
  padding: 12px 16px; gap: 8px;
  border-bottom: 1px solid var(--border);
  font-size: 0.85rem; align-items: center;
  transition: background 0.15s;
}
.torque-row:last-child { border-bottom: none; }
.torque-row:hover { background: var(--bg-card-hover); }
.torque-critical { background: rgba(239,68,68,0.05); border-left: 3px solid var(--red); }
.torque-part   { font-weight: 600; color: var(--text-primary); }
.torque-spec   { font-family: 'Courier New', monospace; color: var(--accent); font-weight: 700; }
.torque-metric { font-family: 'Courier New', monospace; color: var(--text-secondary); }
.torque-note   { font-size: 0.76rem; color: var(--text-muted); }

/* Step cards v2 */
.steps-v2 { display: flex; flex-direction: column; gap: 20px; }
.step-card {
  display: flex; gap: 0;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: border-color 0.2s, box-shadow 0.2s;
}
.step-card:hover { border-color: var(--border-bright); box-shadow: var(--shadow); }
.step-card-num {
  min-width: 56px; display: flex; align-items: flex-start; justify-content: center;
  padding-top: 24px;
  font-family: var(--font-display); font-size: 1.6rem; font-weight: 900;
  color: var(--accent); background: linear-gradient(180deg, var(--accent-glow), transparent);
  border-right: 1px solid var(--border);
}
.step-card-body { flex: 1; padding: 20px 24px; }
.step-card-top  { display: flex; gap: 20px; align-items: flex-start; }
.step-card-text { flex: 1; }
.step-card-title { font-size: 1rem; font-weight: 700; margin-bottom: 8px; color: var(--text-primary); }
.step-direction-badge {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: 0.75rem; font-weight: 700;
  background: var(--accent-glow); color: var(--accent);
  border: 1px solid var(--accent); border-radius: 20px;
  padding: 3px 12px; margin-bottom: 10px;
}
.step-card-desc { font-size: 0.88rem; color: var(--text-secondary); line-height: 1.6; }
.step-card-img-wrap {
  width: 140px; min-height: 100px; flex-shrink: 0;
  background: var(--bg-card);
  border-radius: var(--radius); overflow: hidden;
  display: flex; align-items: center; justify-content: center;
  border: 1px solid var(--border);
}
.step-img { width: 100%; height: 100%; object-fit: cover; display: block; }
.step-img-loading { text-align: center; }
.step-img-icon { font-size: 2.5rem; opacity: 0.3; }

/* Completion checklist */
.checklist-section { background: rgba(34,197,94,0.05); border-color: rgba(34,197,94,0.2); }
.checklist { display: flex; flex-direction: column; gap: 10px; }
.checklist-item {
  display: flex; align-items: center; gap: 12px;
  padding: 12px 16px;
  background: var(--bg-surface); border: 1px solid var(--border);
  border-radius: var(--radius); cursor: pointer;
  font-size: 0.88rem; color: var(--text-primary);
  transition: all 0.2s;
}
.checklist-item input[type="checkbox"] { width: 18px; height: 18px; accent-color: var(--green); cursor: pointer; }
.checklist-item.checked { background: rgba(34,197,94,0.08); border-color: var(--green); color: var(--green); text-decoration: line-through; }
.safety-final {
  text-align: center;
  background: var(--accent-glow); border-color: var(--accent);
  font-size: 0.9rem; color: var(--text-primary);
}

/* =============================================
   ENGINE SELECTOR (inline browse)
   ============================================= */
.engine-selector-row {
  display: flex; gap: 16px; align-items: flex-end; flex-wrap: wrap;
  border-top: 1px solid var(--border);
  margin-top: 16px; padding-top: 16px;
}
.engine-spec-pills { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
.epill {
  font-size: 0.78rem; font-weight: 600;
  background: var(--bg-surface); border: 1px solid var(--border);
  border-radius: 20px; padding: 4px 12px; color: var(--text-secondary);
}
.epill-accent { background: var(--accent-glow); color: var(--accent); border-color: var(--accent); }

/* ---- FLUIDS GRID ---- */
.fluids-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 14px;
}
.fluid-card {
  background: var(--bg-surface); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 16px;
  display: flex; gap: 14px; align-items: flex-start;
}
.fluid-icon { font-size: 1.6rem; flex-shrink: 0; }
.fluid-label { font-size: 0.72rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.08em; color: var(--text-muted); margin-bottom: 4px; }
.fluid-value { font-size: 0.95rem; font-weight: 600; color: var(--accent); }
.fluid-warn  { font-size: 0.72rem; color: var(--yellow); margin-top: 6px; }

/* ---- GUIDE COST ROW ---- */
.guide-cost-row {
  display: flex; gap: 12px; flex-wrap: wrap; margin-top: 14px;
}
.cost-pill {
  flex: 1; min-width: 180px;
  border-radius: var(--radius); padding: 12px 16px;
  display: flex; flex-direction: column; gap: 2px;
  font-size: 0.78rem; color: var(--text-muted);
}
.cost-pill strong { font-size: 1.15rem; font-weight: 700; display: block; margin: 2px 0; }
.cost-sub { font-size: 0.7rem; }
.cost-diy  { background: rgba(34,197,94,0.08); border: 1px solid rgba(34,197,94,0.3); color: var(--green); }
.cost-diy strong { color: var(--green); }
.cost-shop { background: rgba(37,99,235,0.06); border: 1px solid rgba(37,99,235,0.25); color: var(--accent); }
.cost-shop strong { color: var(--accent); }

/* ---- OBD CODE LOOKUP ---- */
.obd-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(380px, 1fr)); gap: 16px;
}
.obd-card {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 20px 22px;
  transition: border-color 0.2s;
}
.obd-card:hover { border-color: var(--border-bright); }
.obd-card-top {
  display: flex; align-items: center; gap: 10px; margin-bottom: 10px; flex-wrap: wrap;
}
.obd-code {
  font-family: 'Courier New', monospace;
  font-size: 1.1rem; font-weight: 700;
  color: var(--accent); letter-spacing: 0.05em;
}
.obd-system {
  font-size: 0.72rem; font-weight: 600; text-transform: uppercase;
  letter-spacing: 0.08em; color: var(--text-muted);
  background: var(--bg-surface); border: 1px solid var(--border);
  padding: 2px 8px; border-radius: 4px;
}
.obd-desc { font-size: 0.9rem; color: var(--text-primary); margin-bottom: 10px; font-weight: 500; }
.obd-fix  {
  font-size: 0.82rem; color: var(--text-secondary);
  background: var(--bg-surface); border-radius: 6px;
  padding: 10px 12px; border-left: 2px solid var(--green);
}

/* ---- VEHICLE HERO PHOTO ---- */
.vehicle-hero-img-wrap {
  margin: -36px -36px 24px -36px;
  overflow: hidden;
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
  max-height: 320px;
  background: var(--bg-surface);
  position: relative;
}
.vehicle-hero-img-wrap:empty { display: none; }
.vehicle-hero-photo {
  width: 100%; height: 320px;
  object-fit: cover; object-position: center;
  display: block;
  transition: opacity 0.4s;
}
.vehicle-hero-photo::after {
  content: '';
  position: absolute; inset: 0;
  background: linear-gradient(to bottom, transparent 50%, var(--bg-card) 100%);
}

/* ---- GUIDE DIAGRAM IMAGE ---- */
.guide-detail-header {
  display: flex; gap: 32px; align-items: flex-start;
}
.guide-header-text { flex: 1; min-width: 0; }
.guide-header-img {
  flex-shrink: 0;
  width: 260px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border);
  background: var(--bg-surface);
  min-height: 180px;
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
}
.guide-img-placeholder {
  font-size: 4rem; padding: 24px; text-align: center;
  color: var(--text-muted);
}
.guide-diagram-img {
  width: 100%; height: auto;
  max-height: 280px;
  object-fit: contain;
  display: block;
  background: #fff;
  padding: 8px;
}
.guide-img-caption {
  font-size: 0.7rem; color: var(--text-muted);
  text-align: center; padding: 6px 8px;
  border-top: 1px solid var(--border);
  background: var(--bg-surface);
  width: 100%;
}

/* ---- RESPONSIVE ---- */
/* =============================================
   MOBILE NAV — hamburger button (hidden on desktop)
   ============================================= */
/* Hamburger — always visible (desktop + mobile) */
.hamburger-btn {
  display: flex;
  flex-direction: column; justify-content: center; align-items: center;
  gap: 5px; width: 40px; height: 40px;
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--border);
  border-radius: 8px; cursor: pointer;
  flex-shrink: 0; padding: 0;
  transition: background 0.2s, border-color 0.2s;
}
.hamburger-btn:hover { background: rgba(59,130,246,0.1); border-color: var(--border-glow); }
.hamburger-btn span {
  display: block; width: 18px; height: 2px;
  background: var(--text-secondary);
  border-radius: 2px;
  transition: all 0.25s;
  transform-origin: center;
}
.hamburger-btn.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger-btn.active span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.hamburger-btn.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Nav is always hidden until toggled */
.main-nav {
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 54px; left: 0; right: 0;
  background: rgba(10,15,22,0.97);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  padding: 12px 0 16px;
  z-index: 99;
  transform: translateY(-110%);
  opacity: 0;
  transition: transform 0.28s cubic-bezier(.4,0,.2,1), opacity 0.28s;
  pointer-events: none;
  gap: 2px;
  max-height: calc(100dvh - 54px);
  overflow-y: auto;
}
.main-nav.mobile-open {
  transform: translateY(0);
  opacity: 1;
  pointer-events: auto;
}
.main-nav .nav-btn {
  width: 100%; text-align: left;
  padding: 13px 24px;
  font-size: 0.92rem;
  border-radius: 0;
  color: var(--text-secondary);
  border-bottom: 1px solid rgba(255,255,255,0.03);
}
.main-nav .nav-btn:last-child { border-bottom: none; }
.main-nav .nav-btn:hover, .main-nav .nav-btn.active {
  background: rgba(59,130,246,0.1);
  color: #60a5fa;
  padding-left: 30px;
}
body.nav-open .mobile-nav-backdrop { display: block; }

.mobile-nav-backdrop {
  display: none;
  position: fixed; inset: 0; z-index: 98;
  background: rgba(0,0,0,0.5);
  backdrop-filter: blur(2px);
}

/* =============================================
   BOTTOM NAV — mobile only, hidden on desktop
   ============================================= */
.mobile-bottom-nav { display: none; }

/* =============================================
   FULL-SCREEN DRAWER — base styles (all sizes)
   ============================================= */
.mob-drawer-header,
.mob-drawer-search,
.mob-drawer-links,
.mob-drawer-footer,
.mob-header-right,
.mob-dark-btn { display: none; }

/* =============================================
   MOBILE  (≤ 768px)
   ============================================= */
@media (max-width: 768px) {

  /* ======== BOTTOM NAVIGATION BAR ======== */
  .mobile-bottom-nav {
    display: flex;
    position: fixed; bottom: 0; left: 0; right: 0;
    z-index: 200;
    background: rgba(10,14,20,0.97);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-top: 1px solid rgba(59,130,246,0.15);
    padding-bottom: env(safe-area-inset-bottom, 0px);
    box-shadow: 0 -4px 24px rgba(0,0,0,0.5);
  }
  .mob-tab {
    flex: 1; display: flex; flex-direction: column;
    align-items: center; justify-content: center;
    gap: 4px; padding: 10px 4px;
    background: none; border: none;
    color: var(--text-muted); cursor: pointer;
    font-family: var(--font-body); font-size: 0.65rem; font-weight: 500;
    transition: color 0.2s;
    -webkit-tap-highlight-color: transparent;
  }
  .mob-tab svg { width: 22px; height: 22px; stroke-width: 1.8; transition: stroke 0.2s; }
  .mob-tab:active { opacity: 0.7; }
  .mob-tab.active { color: #60a5fa; }
  .mob-tab.active svg { stroke: #60a5fa; filter: drop-shadow(0 0 6px rgba(96,165,250,0.5)); }

  /* ======== HEADER ======== */
  .header-inner {
    padding: 0 16px;
    min-height: 56px;
    flex-wrap: nowrap;
    justify-content: space-between;
    align-items: center;
    gap: 0;
  }
  .logo { font-size: 1.25rem; }
  .nav-right-group { display: none; }
  .header-badge { display: none; }
  .hamburger-btn { display: none; }  /* replaced by bottom nav on mobile */

  /* Right side of mobile header: dark mode + optional menu */
  .mob-header-right {
    display: flex; align-items: center; gap: 8px;
  }
  .mob-dark-btn {
    display: flex; background: none; border: none;
    font-size: 1.1rem; cursor: pointer; padding: 8px;
    border-radius: 8px; color: var(--text-muted);
  }

  /* ======== FULL-SCREEN NAV DRAWER ======== */
  .main-nav {
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    transform: translateX(100%);
    opacity: 1;
    z-index: 300;
    background: #0c1118;
    display: flex; flex-direction: column;
    transition: transform 0.3s cubic-bezier(.4,0,.2,1);
    pointer-events: none;
    overflow: hidden;
  }
  .main-nav.mobile-open {
    transform: translateX(0);
    pointer-events: auto;
  }

  /* Drawer header */
  .mob-drawer-header {
    display: flex; align-items: center; justify-content: space-between;
    padding: 0 20px;
    min-height: 60px;
    background: linear-gradient(135deg, rgba(59,130,246,0.15) 0%, rgba(14,165,233,0.08) 100%);
    border-bottom: 1px solid rgba(59,130,246,0.2);
    flex-shrink: 0;
    padding-top: env(safe-area-inset-top, 0px);
  }
  .mob-drawer-logo {
    font-family: var(--font-display); font-size: 1.4rem;
    color: var(--text-primary);
    display: flex; align-items: center; gap: 8px;
  }
  .mob-drawer-logo span { font-size: 1.2rem; }
  .mob-drawer-logo strong { color: #60a5fa; }
  .mob-drawer-close {
    background: rgba(255,255,255,0.08); border: 1px solid var(--border);
    border-radius: 50%; width: 36px; height: 36px;
    color: var(--text-secondary); font-size: 1rem;
    cursor: pointer; display: flex; align-items: center; justify-content: center;
    -webkit-tap-highlight-color: transparent;
  }

  /* Drawer search */
  .mob-drawer-search {
    display: block; padding: 14px 16px 10px; flex-shrink: 0;
  }
  .mob-drawer-search input {
    width: 100%; background: rgba(255,255,255,0.06);
    border: 1px solid var(--border); border-radius: 10px;
    color: var(--text-primary); padding: 11px 16px;
    font-size: 0.9rem; font-family: var(--font-body); outline: none;
  }
  .mob-drawer-search input:focus { border-color: var(--accent); }

  /* Drawer nav links */
  .mob-drawer-links {
    display: flex; flex-direction: column;
    flex: 1; overflow-y: auto; padding: 4px 12px;
  }
  .mob-drawer-item {
    display: flex; align-items: center; gap: 14px;
    width: 100%; background: none; border: none;
    color: #9db8d2;
    padding: 15px 12px;
    font-family: var(--font-body); font-size: 0.95rem; font-weight: 500;
    border-radius: var(--radius); cursor: pointer; text-align: left;
    transition: all 0.15s;
    -webkit-tap-highlight-color: transparent;
    border-bottom: 1px solid rgba(255,255,255,0.04);
  }
  .mob-drawer-item:last-child { border-bottom: none; }
  .mob-drawer-item:active,
  .mob-drawer-item:hover { background: rgba(59,130,246,0.1); color: #c8dcf0; }
  .mob-drawer-icon { font-size: 1.2rem; width: 28px; text-align: center; flex-shrink: 0; }
  .mob-drawer-arrow { margin-left: auto; color: #3d5570; font-size: 1rem; }

  /* Drawer footer */
  .mob-drawer-footer {
    display: block; padding: 12px 16px;
    border-top: 1px solid var(--border);
    padding-bottom: calc(12px + env(safe-area-inset-bottom, 0px));
    flex-shrink: 0;
  }
  .mob-drawer-signin {
    width: 100%; padding: 14px;
    background: linear-gradient(135deg, #3b82f6, #2563eb);
    border: none; border-radius: var(--radius);
    color: #fff; font-size: 0.95rem; font-weight: 600;
    font-family: var(--font-body); cursor: pointer;
    box-shadow: 0 4px 16px rgba(59,130,246,0.4);
  }

  /* Backdrop for drawer */
  .mobile-nav-backdrop {
    z-index: 299;
    transition: opacity 0.3s;
  }

  /* ======== GLOBAL: account for bottom nav ======== */
  main, .site-footer { margin-bottom: 64px; }
  main { padding-bottom: env(safe-area-inset-bottom, 0px); }

  /* ======== HERO ======== */
  .hero { padding: 28px 16px 24px; }
  .hero-content { max-width: 100%; }
  h1 { font-size: clamp(2rem, 8vw, 2.8rem); }
  .hero-sub { font-size: 0.92rem; margin: 8px 0 20px; color: var(--text-muted); }
  .hero-bg-text { display: none; }
  .hero-actions { flex-direction: column; gap: 10px; }
  .hero-actions .btn {
    width: 100%; justify-content: center;
    padding: 15px 20px; font-size: 0.95rem;
    border-radius: 12px;
  }
  .hero-stats { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-top: 24px; }
  .stat-card { padding: 14px 12px; min-width: 0; }
  .stat-num { font-size: 1.5rem; }

  /* ======== SECTIONS ======== */
  .quick-search-section,
  .popular-makes-section,
  .features-section { padding: 24px 16px; }
  .section-header { margin-bottom: 16px; }
  .section-header h2 { font-size: 1.2rem; padding-left: 12px; }

  /* ======== QUICK SEARCH ======== */
  .quick-search-card { padding: 16px 14px; border-radius: 14px; }
  .search-tabs { margin-bottom: 16px; padding-bottom: 12px; }
  .tab-btn { padding: 8px 14px; font-size: 0.85rem; }
  .filter-row { flex-direction: column; gap: 10px; }
  .filter-row .btn { width: 100%; justify-content: center; padding: 14px; border-radius: 10px; }
  .filter-group { min-width: 0; }
  select, input[type="text"], input[type="number"], input[type="email"] {
    padding: 13px 14px; font-size: 0.92rem;
    min-height: 48px; border-radius: 10px;
  }

  /* ======== MAKES GRID ======== */
  .makes-grid { grid-template-columns: repeat(4, 1fr); gap: 8px; }
  .make-chip { padding: 12px 6px; font-size: 0.75rem; border-radius: 10px; }
  .make-chip .make-icon { font-size: 1.3rem; margin-bottom: 4px; }

  /* ======== FEATURE CARDS ======== */
  .features-section { grid-template-columns: 1fr 1fr; gap: 10px; }
  .feature-card { padding: 18px 14px; border-radius: 14px; }
  .feature-icon { width: 40px; height: 40px; font-size: 1.3rem; border-radius: 10px; }

  /* ======== BETA BANNER ======== */
  .beta-banner {
    font-size: 0.73rem; padding: 8px 32px 8px 12px;
    margin-bottom: 18px; border-radius: 8px;
  }

  /* ======== PAGE HEADERS ======== */
  .page-header { padding: 20px 16px 12px; margin-bottom: 16px; }
  .page-header h1 { font-size: clamp(1.5rem, 6vw, 2rem); }

  /* ======== BROWSE ======== */
  .browse-filters { padding: 12px 16px; margin: 0; border-radius: 0; }
  .engine-selector-row { flex-direction: column; }
  #browse-results { padding: 12px 16px 16px; }

  /* ======== VIN ======== */
  .vin-search-card { margin: 0 16px; padding: 16px; }
  .vin-input-row { flex-direction: column; gap: 10px; }
  .vin-input-row .btn { width: 100%; justify-content: center; }
  .vin-anatomy { display: none; }
  #vin-results { padding: 0 16px; }

  /* ======== VEHICLE DETAIL ======== */
  .vehicle-hero-card::after { display: none; }
  .vehicle-hero-img-wrap { margin: -20px -20px 16px; border-radius: var(--radius) var(--radius) 0 0; }
  .vehicle-spec-grid { grid-template-columns: 1fr 1fr; gap: 8px; }
  .vehicle-tabs { overflow-x: auto; flex-wrap: nowrap; scrollbar-width: none; -webkit-overflow-scrolling: touch; }
  .vehicle-tabs::-webkit-scrollbar { display: none; }
  .vehicle-tab { white-space: nowrap; flex-shrink: 0; }

  /* ======== GUIDES ======== */
  .guides-filter-bar {
    display: flex; overflow-x: auto; flex-wrap: nowrap;
    padding: 0 16px 10px; gap: 6px;
    scrollbar-width: none; -webkit-overflow-scrolling: touch;
  }
  .guides-filter-bar::-webkit-scrollbar { display: none; }
  .guide-cat-btn { white-space: nowrap; flex-shrink: 0; padding: 8px 16px; font-size: 0.82rem; border-radius: 999px; }
  .guides-grid { grid-template-columns: 1fr; padding: 0 16px; gap: 10px; }
  .guide-card { border-radius: 14px; }
  .guide-detail-header { flex-direction: column; }
  .guide-header-img { width: 100%; min-height: 160px; }
  .guide-body { padding: 16px 14px; }
  .quick-ref-strip { padding: 10px 14px; flex-wrap: wrap; gap: 8px; }
  .guide-hero-content { padding: 24px 14px 20px; }
  .torque-note { display: none; }
  .torque-header, .torque-row { grid-template-columns: 2fr 1fr 1fr; }

  /* ======== OBD CODES ======== */
  .obd-grid { grid-template-columns: 1fr; }
  .obd-search-bar { margin: 0 0 12px; padding: 14px 16px; border-radius: 0; border-left: none; border-right: none; }
  #obd-results { padding: 0 16px 16px !important; }
  #obd-count { padding: 0 16px !important; }

  /* ======== TOOLS ======== */
  #view-tools > div { padding: 16px 0 16px; }
  .tools-tab-bar {
    overflow-x: auto; flex-wrap: nowrap; gap: 6px;
    padding: 0 16px 10px; scrollbar-width: none; -webkit-overflow-scrolling: touch;
  }
  .tools-tab-bar::-webkit-scrollbar { display: none; }
  .tools-tab { white-space: nowrap; flex-shrink: 0; padding: 9px 16px; font-size: 0.82rem; border-radius: 999px; }
  .tool-form-grid { grid-template-columns: 1fr; }
  .tool-form-row { flex-direction: column; }
  .brake-cost-table { grid-template-columns: 1fr; }
  .tool-card { padding: 18px 14px; border-radius: 14px; }

  /* ======== GARAGE ======== */
  .garage-grid { grid-template-columns: 1fr 1fr; gap: 10px; padding: 0 16px; }

  /* ======== SYMPTOMS ======== */
  .symptom-cat-grid { grid-template-columns: repeat(2, 1fr); gap: 10px; padding: 0 16px; }

  /* ======== FORUM ======== */
  .forum-cat-grid { grid-template-columns: 1fr; }
  .forum-thread-meta { flex-wrap: wrap; gap: 6px; }
  #view-forum > div { padding: 16px !important; }

  /* ======== ABOUT / CONTACT ======== */
  .about-page { padding: 0 16px 16px; }
  .about-hero { flex-direction: column; text-align: center; gap: 12px; padding: 24px 0 16px; }
  .about-cta-row { grid-template-columns: 1fr; gap: 10px; }
  .contact-grid { grid-template-columns: 1fr; }
  .about-contact-section { padding: 0; }

  /* ======== DONATE ======== */
  .donate-page { padding: 0 16px 16px; }
  .donate-cards { flex-direction: column; align-items: center; }

  /* ======== MODALS ======== */
  .engine-modal-overlay { align-items: flex-end; padding: 0; }
  .engine-modal-card {
    width: 100%; max-height: 88dvh;
    overflow-y: auto;
    border-radius: 20px 20px 0 0;
    margin: 0;
    padding-bottom: env(safe-area-inset-bottom, 12px);
  }

  /* ======== AUTH ======== */
  .auth-page { align-items: flex-start; padding: 20px 16px; }
  .auth-card { padding: 24px 18px; border-radius: 16px; }

  /* ======== FOOTER ======== */
  .site-footer { display: none; }
}

/* =============================================
   SMALL PHONES  (≤ 430px)
   ============================================= */
@media (max-width: 430px) {
  .hero-stats { grid-template-columns: 1fr 1fr; }
  .features-section { grid-template-columns: 1fr !important; }
  .garage-grid { grid-template-columns: 1fr !important; }
  .makes-grid { grid-template-columns: repeat(3, 1fr); }
  .stat-card { padding: 12px 10px; }
  h1 { font-size: clamp(1.8rem, 7.5vw, 2.4rem); }
}

/* =============================================
   AUTH PAGES
   ============================================= */
.auth-page {
  min-height: 100vh;
  display: flex; align-items: center; justify-content: center;
  padding: 40px 20px;
  background: radial-gradient(ellipse at top, rgba(37,99,235,0.05) 0%, transparent 60%);
}
.auth-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 40px;
  max-width: 440px; width: 100%;
  box-shadow: var(--shadow);
}
.auth-logo {
  font-family: var(--font-display); font-size: 1.8rem; font-weight: 700;
  text-align: center; margin-bottom: 4px;
}
.auth-tagline { text-align:center; color:var(--text-muted); font-size:0.85rem; margin-bottom:28px; }
.auth-tabs { display:flex; border-bottom:1px solid var(--border); margin-bottom:28px; }
.auth-tab-btn {
  flex:1; background:none; border:none; cursor:pointer;
  font-family:var(--font-body); font-size:0.82rem; font-weight:600;
  color:var(--text-muted); padding:10px 4px;
  border-bottom:2px solid transparent; margin-bottom:-1px;
  transition:all 0.2s;
}
.auth-tab-btn:hover { color:var(--text-primary); }
.auth-tab-btn.active { color:var(--accent); border-bottom-color:var(--accent); }
.auth-tab-panel { display:none; }
.auth-tab-panel.active { display:block; }
.form-group { display:flex; flex-direction:column; gap:6px; margin-bottom:16px; }
.form-group label { font-size:0.78rem; font-weight:600; text-transform:uppercase; letter-spacing:0.06em; color:var(--text-muted); }
.form-error { color:var(--red); font-size:0.82rem; min-height:18px; margin-bottom:8px; }
.form-ok    { color:var(--green); font-size:0.82rem; min-height:18px; margin-bottom:8px; }
.btn-full { width:100%; justify-content:center; }
.auth-switch { text-align:center; font-size:0.82rem; color:var(--text-muted); margin-top:16px; }
.auth-switch a { color:var(--accent); cursor:pointer; text-decoration:underline; }
.nav-btn-accent { background:var(--accent); color:#fff; font-weight:700; border-radius:6px; }
.nav-btn-accent:hover { background:#fb923c; }
.user-nav-btn { display:flex; align-items:center; gap:8px; }
.user-avatar-sm {
  width:24px; height:24px; border-radius:50%;
  background:var(--accent); color:#fff;
  display:inline-flex; align-items:center; justify-content:center;
  font-size:0.75rem; font-weight:800;
}
.reset-code-box {
  background:var(--accent-glow); border:1px solid var(--accent);
  border-radius:var(--radius); padding:16px; text-align:center; margin-bottom:16px;
}
.reset-code-display {
  font-family:'Courier New',monospace; font-size:2rem; font-weight:900;
  color:var(--accent); letter-spacing:0.3em; margin-top:8px;
}

/* =============================================
   FORUM
   ============================================= */
.forum-layout { max-width:1100px; margin:0 auto; padding:40px 24px 80px; }
.forum-header-bar {
  display:flex; justify-content:space-between; align-items:flex-start;
  margin-bottom:28px; flex-wrap:wrap; gap:16px;
}
.forum-stats-bar {
  display:flex; gap:24px; flex-wrap:wrap;
  background:var(--bg-surface); border:1px solid var(--border);
  border-radius:var(--radius); padding:12px 20px;
  margin-bottom:28px; font-size:0.85rem; color:var(--text-muted);
}
.forum-cat-grid {
  display:grid; grid-template-columns:repeat(auto-fill, minmax(320px,1fr));
  gap:14px; margin-bottom:40px;
}
.forum-cat-card {
  background:var(--bg-card); border:1px solid var(--border);
  border-radius:var(--radius-lg); padding:20px;
  display:flex; gap:16px; cursor:pointer; transition:all 0.2s;
}
.forum-cat-card:hover { border-color:var(--border-bright); transform:translateY(-2px); box-shadow:var(--shadow); }
.forum-cat-icon {
  width:48px; height:48px; border-radius:var(--radius);
  display:flex; align-items:center; justify-content:center;
  font-size:1.5rem; flex-shrink:0;
}
.forum-cat-name  { font-weight:700; font-size:1rem; margin-bottom:4px; }
.forum-cat-desc  { font-size:0.78rem; color:var(--text-muted); margin-bottom:6px; }
.forum-cat-latest { font-size:0.72rem; color:var(--text-muted); }
.forum-cat-latest em { color:var(--text-secondary); }

.forum-recent h2 { margin-bottom:16px; }
.thread-list { display:flex; flex-direction:column; gap:0; }
.thread-row {
  display:flex; align-items:center; justify-content:space-between;
  padding:14px 0; border-bottom:1px solid var(--border);
  cursor:pointer; transition:background 0.15s;
}
.thread-row:hover { background:var(--bg-card-hover); padding-left:8px; border-radius:var(--radius); }
.thread-row-left { display:flex; gap:12px; align-items:flex-start; }
.thread-row-title { font-weight:600; font-size:0.9rem; color:var(--text-primary); margin-bottom:4px; }
.thread-row-meta  { display:flex; gap:10px; flex-wrap:wrap; font-size:0.75rem; color:var(--text-muted); align-items:center; }
.pin-badge    { font-size:0.7rem; }
.solved-badge { background:rgba(34,197,94,0.12); color:var(--green); font-size:0.68rem; font-weight:700; padding:2px 7px; border-radius:4px; border:1px solid var(--green); }
.cat-pill     { font-size:0.72rem; font-weight:600; padding:2px 9px; border-radius:20px; }
.thread-tags  { display:flex; gap:4px; flex-wrap:wrap; margin-top:4px; }
.ttag         { font-size:0.68rem; color:var(--text-muted); background:var(--bg-surface); border:1px solid var(--border); padding:1px 7px; border-radius:4px; }
.replies-header { font-size:0.85rem; font-weight:700; color:var(--text-muted); padding:20px 0 8px; border-top:1px solid var(--border); margin-top:8px; }

/* Bulletin board top fix */
.bulletin-board-card {
  background:linear-gradient(135deg,rgba(37,99,235,0.06),rgba(14,165,233,0.06));
  border:1px solid rgba(37,99,235,0.25);
  border-left:4px solid var(--accent);
  border-radius:var(--radius-lg); padding:24px 28px;
  margin-bottom:24px;
}
.bb-header   { display:flex; align-items:center; gap:12px; margin-bottom:10px; }
.bb-badge    { background:var(--accent); color:#fff; font-size:0.7rem; font-weight:800; padding:3px 10px; border-radius:4px; letter-spacing:0.05em; }
.bb-title    { font-family:var(--font-display); font-size:1.1rem; font-weight:700; margin-bottom:8px; }
.bb-body     { font-size:0.87rem; color:var(--text-secondary); line-height:1.65; margin-bottom:12px; }
.bb-guide-link { color:var(--accent); font-size:0.82rem; font-weight:600; cursor:pointer; text-decoration:underline; }

/* Thread post view */
.thread-post {
  display:flex; gap:0;
  background:var(--bg-card); border:1px solid var(--border);
  border-radius:var(--radius-lg); margin-bottom:14px; overflow:hidden;
}
.op-post      { border-top:3px solid var(--accent); }
.solution-post { border-top:3px solid var(--green); }
.solution-banner {
  background:rgba(34,197,94,0.1); color:var(--green);
  font-size:0.78rem; font-weight:700; padding:6px 16px;
  border-bottom:1px solid rgba(34,197,94,0.2);
}
.post-sidebar {
  width:120px; flex-shrink:0;
  background:var(--bg-surface);
  border-right:1px solid var(--border);
  padding:20px 12px; text-align:center;
  display:flex; flex-direction:column; align-items:center; gap:8px;
}
.post-author-name { font-size:0.8rem; font-weight:700; }
.post-author-role { font-size:0.68rem; color:var(--text-muted); }
.post-body    { flex:1; padding:20px 24px; }
.post-header  { margin-bottom:14px; }
.post-title   { font-size:1.2rem; margin-bottom:6px; }
.post-meta    { display:flex; gap:10px; flex-wrap:wrap; font-size:0.76rem; color:var(--text-muted); align-items:center; }
.post-content { font-size:0.9rem; line-height:1.7; color:var(--text-secondary); }
.post-actions { display:flex; gap:8px; margin-top:16px; flex-wrap:wrap; }
.post-action-btn {
  background:var(--bg-surface); border:1px solid var(--border);
  color:var(--text-muted); font-size:0.78rem; padding:5px 14px;
  border-radius:20px; cursor:pointer; transition:all 0.2s;
}
.post-action-btn:hover { border-color:var(--accent); color:var(--accent); }
.post-action-btn.liked { background:rgba(239,68,68,0.1); color:var(--red); border-color:var(--red); }
.solution-btn:hover { background:rgba(34,197,94,0.1); color:var(--green); border-color:var(--green); }
.admin-btn { border-color:var(--accent); color:var(--accent); }
.admin-btn-danger { border-color:#ef4444 !important; color:#ef4444 !important; }
.admin-btn-danger:hover { background:rgba(239,68,68,0.15) !important; }
.admin-row-actions { display:flex; gap:6px; align-items:center; margin-left:auto; padding-left:12px; flex-shrink:0; }
.connect-btn {
  background:var(--accent-glow); border:1px solid var(--accent);
  color:var(--accent); font-size:0.72rem; font-weight:700;
  padding:4px 10px; border-radius:4px; cursor:pointer; transition:all 0.2s;
  width:100%;
}
.reply-box {
  background:var(--bg-card); border:1px solid var(--border);
  border-radius:var(--radius-lg); padding:24px;
  margin-top:8px;
}
.reply-box h3 { margin-bottom:14px; }
.reply-textarea {
  width:100%; height:120px; resize:vertical;
  background:var(--bg-input); border:1px solid var(--border);
  border-radius:var(--radius); color:var(--text-primary);
  font-family:var(--font-body); font-size:0.9rem;
  padding:12px 14px; outline:none; margin-bottom:10px; display:block;
}
.reply-textarea:focus { border-color:var(--accent); }
.login-prompt-box {
  text-align:center; padding:24px;
  background:var(--bg-surface); border-radius:var(--radius);
}
.login-prompt-box p { margin-bottom:14px; }

/* Avatar */
.avatar {
  border-radius:50%; display:flex; align-items:center; justify-content:center;
  font-weight:800; color:#fff; flex-shrink:0;
}

/* =============================================
   PROFILE
   ============================================= */
.profile-header {
  display:flex; gap:24px; align-items:flex-start;
  background:var(--bg-card); border:1px solid var(--border);
  border-radius:var(--radius-lg); padding:32px;
  margin-bottom:28px; flex-wrap:wrap;
}
.profile-avatar {
  width:72px; height:72px; border-radius:50%;
  display:flex; align-items:center; justify-content:center;
  font-size:2rem; font-weight:900; color:#fff; flex-shrink:0;
}
.profile-info { flex:1; min-width:200px; }
.profile-info h1 { margin-bottom:4px; }
.profile-stats { display:flex; gap:24px; margin-top:16px; }
.pstat { display:flex; flex-direction:column; }
.pstat strong { font-size:1.4rem; font-family:var(--font-display); color:var(--accent); }
.pstat span { font-size:0.75rem; color:var(--text-muted); }
.profile-section { margin-bottom:28px; }
.profile-section h3 { margin-bottom:14px; }
.user-grid { display:flex; flex-wrap:wrap; gap:10px; }
.user-chip {
  display:flex; align-items:center; gap:8px;
  background:var(--bg-card); border:1px solid var(--border);
  border-radius:20px; padding:6px 14px; font-size:0.82rem;
}

/* =============================================
   DONATE PAGE
   ============================================= */
.donate-page { max-width:900px; margin:0 auto; padding:60px 24px 80px; text-align:center; }
.donate-hero { margin-bottom:48px; }
.donate-icon { font-size:4rem; margin-bottom:16px; }
.donate-hero h1 { font-size:clamp(2rem,5vw,3rem); margin-bottom:12px; }
.donate-cards { display:flex; gap:20px; justify-content:center; flex-wrap:wrap; margin-bottom:48px; }
.donate-card {
  background:var(--bg-card); border:1px solid var(--border);
  border-radius:var(--radius-lg); padding:32px 28px;
  max-width:240px; width:100%; position:relative; text-align:center;
  transition:all 0.2s;
}
.donate-card:hover { border-color:var(--border-bright); transform:translateY(-4px); }
.donate-card-featured { border-color:var(--accent); box-shadow:var(--shadow-accent); }
.donate-card-badge {
  position:absolute; top:-12px; left:50%; transform:translateX(-50%);
  background:var(--accent); color:#fff; font-size:0.72rem; font-weight:800;
  padding:3px 14px; border-radius:20px;
}
.donate-card-icon   { font-size:2.5rem; margin-bottom:10px; }
.donate-card-tier   { font-size:0.8rem; font-weight:700; text-transform:uppercase; letter-spacing:0.08em; color:var(--text-muted); margin-bottom:6px; }
.donate-card-amount { font-family:var(--font-display); font-size:2.5rem; font-weight:900; color:var(--accent); margin-bottom:12px; }
.donate-card p      { font-size:0.83rem; color:var(--text-muted); margin-bottom:20px; }
.donate-coming-btn  { cursor:default; opacity:0.7; }
.donate-note {
  background:var(--bg-card); border:1px solid var(--border);
  border-radius:var(--radius-lg); padding:32px; text-align:left;
}
.donate-note h3 { margin-bottom:16px; }
.donate-note ul { list-style:none; display:flex; flex-direction:column; gap:10px; }
.donate-note li { font-size:0.88rem; }

/* =============================================
   CONTACT PAGE
   ============================================= */
.contact-page { max-width:1000px; margin:0 auto; padding:60px 24px 80px; }
.contact-hero { text-align:center; margin-bottom:48px; }
.contact-hero h1 { font-size:clamp(2rem,5vw,3rem); margin-bottom:10px; }
.contact-grid { display:grid; grid-template-columns:1fr 1.4fr; gap:24px; margin-bottom:40px; }
.contact-info-card, .contact-form-card {
  background:var(--bg-card); border:1px solid var(--border);
  border-radius:var(--radius-lg); padding:32px;
}
.contact-info-card h2, .contact-form-card h2 { margin-bottom:24px; }
.contact-detail { display:flex; gap:14px; align-items:flex-start; margin-bottom:20px; }
.contact-icon { font-size:1.4rem; flex-shrink:0; margin-top:2px; }
.contact-label { font-size:0.72rem; font-weight:700; text-transform:uppercase; letter-spacing:0.08em; color:var(--text-muted); margin-bottom:4px; }
.contact-value { font-size:0.9rem; color:var(--text-primary); }
.contact-value a { color:var(--accent); text-decoration:none; }
.contact-value a:hover { text-decoration:underline; }
.contact-forum-cta {
  text-align:center; background:var(--bg-card);
  border:1px solid var(--border); border-radius:var(--radius-lg);
  padding:40px;
}
.contact-icon-big { font-size:3rem; margin-bottom:12px; }
.contact-forum-cta h3 { margin-bottom:10px; }
.contact-forum-cta p { max-width:500px; margin:0 auto 20px; }

/* =============================================
   PRODUCTION — FOOTER, LEGAL, BANNERS
   ============================================= */

/* Upgraded footer */
.footer-inner {
  flex-direction: column; align-items: center;
  text-align: center; gap: 8px; padding: 32px 24px;
}
.footer-brand { font-family:var(--font-display); font-size:1.3rem; color:var(--accent); margin-bottom:4px; }
.footer-links {
  display: flex; gap: 20px; flex-wrap: wrap; justify-content: center;
  margin: 8px 0;
}
.footer-links a {
  color: var(--text-muted); font-size: 0.82rem; cursor: pointer;
  text-decoration: none; transition: color 0.2s;
}
.footer-links a:hover { color: var(--accent); }
.footer-copy { font-size: 0.75rem; color: var(--text-muted); }

/* Offline banner */
.offline-banner {
  position: fixed; top: 64px; left: 0; right: 0; z-index: 200;
  background: var(--yellow); color: #fff;
  text-align: center; padding: 10px 16px;
  font-size: 0.85rem; font-weight: 600;
}

/* Cookie banner */
.cookie-banner {
  position: fixed; bottom: 0; left: 0; right: 0; z-index: 300;
  background: var(--bg-card); border-top: 2px solid var(--accent);
  padding: 0; box-shadow: 0 -8px 32px rgba(0,0,0,0.4);
}
.cookie-inner {
  max-width: 900px; margin: 0 auto;
  padding: 20px 24px;
}
.cookie-inner p { font-size: 0.88rem; color: var(--text-secondary); margin: 0; }

/* Legal pages */
.legal-page {
  max-width: 800px; margin: 0 auto;
  padding: 48px 24px 80px;
}
.legal-page h1 { margin-bottom: 6px; }
.legal-date { font-size: 0.8rem; color: var(--text-muted); margin-bottom: 40px; }
.legal-section {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 24px 28px;
  margin-bottom: 16px;
}
.legal-section h2 { font-size: 1rem; margin-bottom: 10px; color: var(--accent); }
.legal-section p  { font-size: 0.88rem; margin-bottom: 10px; }
.legal-section ul { padding-left: 20px; display: flex; flex-direction: column; gap: 6px; }
.legal-section li { font-size: 0.88rem; color: var(--text-secondary); }
.legal-section a  { color: var(--accent); text-decoration: none; }
.legal-section a:hover { text-decoration: underline; }

/* =============================================
   PRINT STYLES — for repair guides
   ============================================= */
@media print {
  .site-header, .site-footer, .back-btn,
  .cookie-banner, .offline-banner, .engine-modal-overlay,
  .guide-hero-pills .gpill-orange, .guide-hero-pills .gpill-green,
  #nav-auth, .forum-layout, .post-actions { display: none !important; }

  body { background: #fff !important; color: #000 !important; }
  .guide-hero { background: #1a1a1a !important; color: #fff; min-height: 120px; }
  .guide-hero-title { color: #fff !important; font-size: 1.5rem !important; }
  .guide-body { padding: 16px 0 !important; }
  .guide-section-v2 { background: #fff !important; border: 1px solid #ccc !important; break-inside: avoid; }
  .step-card { border: 1px solid #ccc !important; background: #fff !important; break-inside: avoid; }
  .step-card-num { background: #f97316 !important; -webkit-print-color-adjust: exact; }
  .torque-critical { background: #fff0f0 !important; -webkit-print-color-adjust: exact; }
  .quick-ref-strip { background: #f5f5f5 !important; }
  .socket-badge { border: 1px solid #f97316 !important; color: #c55000 !important; }
}

/* =============================================
   ABOUT PAGE
   ============================================= */
.about-page {
  max-width: 860px; margin: 0 auto;
  padding: 60px 24px 80px;
}

.about-hero {
  display: flex; gap: 28px; align-items: center;
  margin-bottom: 40px; flex-wrap: wrap;
}
.about-avatar {
  width: 90px; height: 90px; border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-display); font-size: 2rem; font-weight: 900;
  color: #000; flex-shrink: 0;
  box-shadow: 0 0 40px rgba(37,99,235,0.25);
}
.about-tag {
  font-size: 0.78rem; font-weight: 700; text-transform: uppercase;
  letter-spacing: 0.1em; color: var(--accent); margin-bottom: 8px;
}
.about-hero-text h1 {
  font-size: clamp(2rem, 5vw, 3rem);
  margin-bottom: 4px;
}
.about-title {
  font-size: 1rem; color: var(--text-muted);
}

.about-card {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 32px;
  margin-bottom: 20px;
  display: flex; gap: 20px;
}
.about-card-icon {
  font-size: 2.2rem; flex-shrink: 0;
  width: 52px; height: 52px;
  background: var(--accent-glow); border-radius: var(--radius);
  display: flex; align-items: center; justify-content: center;
}
.about-card-body h2 {
  font-size: 1.2rem; margin-bottom: 14px; color: var(--text-primary);
}
.about-card-body p {
  font-size: 0.92rem; line-height: 1.75; margin-bottom: 12px;
  color: var(--text-secondary);
}
.about-card-body p:last-child { margin-bottom: 0; }

.about-stats {
  display: grid; grid-template-columns: repeat(4, 1fr);
  gap: 14px; margin-bottom: 20px;
}
.about-stat {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 24px 16px;
  text-align: center;
}
.about-stat-num {
  font-family: var(--font-display);
  font-size: 2.2rem; font-weight: 900;
  color: var(--accent); margin-bottom: 4px;
}
.about-stat-label {
  font-size: 0.75rem; color: var(--text-muted);
  text-transform: uppercase; letter-spacing: 0.06em;
}

.about-cta-row {
  display: grid; grid-template-columns: repeat(2, 1fr);
  gap: 16px; margin-bottom: 40px;
}
.about-cta-card {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 28px 22px;
  cursor: pointer; transition: all 0.25s; text-align: center;
}
.about-cta-card:hover {
  border-color: var(--accent);
  transform: translateY(-3px);
  box-shadow: var(--shadow-accent);
}
.about-cta-icon { font-size: 2rem; margin-bottom: 12px; }
.about-cta-card h3 { font-size: 1rem; margin-bottom: 8px; }
.about-cta-card p  { font-size: 0.82rem; margin-bottom: 14px; }
.about-cta-link { font-size: 0.82rem; font-weight: 700; color: var(--accent); }

.about-sign {
  text-align: center;
  border-top: 1px solid var(--border);
  padding-top: 32px;
}
.about-sign p   { font-size: 1rem; color: var(--text-secondary); margin-bottom: 8px; }
.about-email    { color: var(--accent); text-decoration: none; font-size: 0.9rem; }
.about-email:hover { text-decoration: underline; }

@media (max-width: 768px) {
  .about-stats    { grid-template-columns: repeat(2, 1fr); }
  .about-cta-row  { grid-template-columns: 1fr; }
  .about-card     { flex-direction: column; }
  .about-hero     { flex-direction: column; text-align: center; }
}

/* =============================================
   DARK MODE
   ============================================= */
/* Light mode toggle — swaps to a softer slate theme */
[data-theme="dark"] {
  --bg-base:       #0a0e15;
  --bg-surface:    #111720;
  --bg-card:       #151d2a;
  --bg-card-hover: #1b2535;
  --bg-input:      #111720;
  --border:        #1e2d3f;
  --border-bright: #2a3e55;
  --text-primary:  #e8f0fa;
  --text-secondary:#7a9ab5;
  --text-muted:    #3e5570;
  --shadow:        0 4px 28px rgba(0,0,0,0.6);
  --shadow-accent: 0 0 30px rgba(59,130,246,0.25);
}
[data-theme="dark"] .site-header {
  background: rgba(8,12,18,0.98);
}
[data-theme="dark"] body::before {
  background-image:
    linear-gradient(rgba(59,130,246,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(59,130,246,0.03) 1px, transparent 1px);
}
[data-theme="dark"] .hero-bg-text { color: rgba(59,130,246,0.06); }
[data-theme="dark"] .engine-modal-card { background: var(--bg-surface); }
[data-theme="dark"] .global-search-input { background: #1e293b; color: var(--text-primary); }
[data-theme="dark"] .search-dropdown { background: #1e293b; border-color: var(--border); }

.dark-mode-toggle {
  font-size: 1.1rem;
  padding: 6px 10px;
  border-radius: 6px;
  line-height: 1;
}

/* =============================================
   NAV RIGHT GROUP & GLOBAL SEARCH
   ============================================= */
.nav-right-group {
  display: flex; align-items: center; gap: 10px; margin-left: auto;
}
.global-search-wrap {
  position: relative;
}
.global-search-input {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 0.85rem;
  padding: 8px 14px;
  width: 240px;
  outline: none;
  transition: border-color 0.2s, width 0.3s;
}
.global-search-input:focus {
  border-color: var(--accent);
  width: 300px;
}
.global-search-input::placeholder { color: var(--text-muted); }
.search-dropdown {
  position: absolute;
  top: calc(100% + 6px);
  right: 0;
  width: 400px;
  max-height: 460px;
  overflow-y: auto;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  z-index: 999;
}
.search-dropdown-group { padding: 12px 0; }
.search-dropdown-label {
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  padding: 4px 16px 8px;
}
.search-dropdown-item {
  display: flex; align-items: flex-start; gap: 10px;
  padding: 10px 16px;
  cursor: pointer;
  transition: background 0.15s;
}
.search-dropdown-item:hover { background: var(--bg-card-hover); }
.search-item-icon { font-size: 1.1rem; flex-shrink: 0; margin-top: 1px; }
.search-item-title { font-size: 0.88rem; font-weight: 600; color: var(--text-primary); }
.search-item-sub { font-size: 0.77rem; color: var(--text-muted); margin-top: 2px; }
.search-no-results { padding: 24px; text-align: center; color: var(--text-muted); font-size: 0.88rem; }

/* =============================================
   RECENTLY VIEWED
   ============================================= */
.recently-viewed-section {
  max-width: 1400px; margin: 0 auto;
  padding: 0 24px 32px;
}
.recent-chips { display: flex; gap: 10px; flex-wrap: wrap; }
.recent-chip {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 8px 18px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-primary);
  cursor: pointer;
  transition: all 0.2s;
  display: flex; align-items: center; gap: 6px;
}
.recent-chip:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-glow);
}

/* =============================================
   GARAGE VIEW
   ============================================= */
.garage-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 20px;
  margin-top: 24px;
}
.garage-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px;
  cursor: pointer;
  transition: all 0.25s;
  position: relative;
}
.garage-card:hover {
  border-color: var(--accent);
  transform: translateY(-3px);
  box-shadow: var(--shadow-accent);
}
.garage-card-icon { font-size: 2.5rem; margin-bottom: 12px; }
.garage-card-year { font-size: 0.8rem; font-weight: 700; color: var(--accent); text-transform: uppercase; letter-spacing: 0.08em; }
.garage-card-title { font-family: var(--font-display); font-size: 1.3rem; font-weight: 700; color: var(--text-primary); margin: 4px 0 8px; }
.garage-card-saved { font-size: 0.75rem; color: var(--text-muted); }
.garage-card-remove {
  position: absolute; top: 12px; right: 12px;
  background: none; border: none; cursor: pointer;
  color: var(--text-muted); font-size: 1.1rem;
  padding: 4px 8px; border-radius: 6px;
  transition: all 0.2s;
}
.garage-card-remove:hover { color: var(--red); background: rgba(220,38,38,0.1); }
.garage-save-btn {
  display: inline-flex; align-items: center; gap: 6px;
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 8px 16px;
  font-size: 0.85rem; font-weight: 600; cursor: pointer;
  color: var(--text-secondary);
  transition: all 0.2s;
}
.garage-save-btn:hover { border-color: var(--accent); color: var(--accent); }
.garage-save-btn.saved {
  background: var(--accent-glow); border-color: var(--accent);
  color: var(--accent);
}

/* =============================================
   SYMPTOM CHECKER
   ============================================= */
.symptom-cat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 16px;
}
.symptom-cat-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px 20px;
  cursor: pointer;
  text-align: center;
  transition: all 0.25s;
}
.symptom-cat-card:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
  box-shadow: var(--shadow-accent);
}
.symptom-cat-icon { font-size: 2.2rem; margin-bottom: 10px; }
.symptom-cat-name { font-weight: 700; font-size: 1rem; color: var(--text-primary); }
.symptom-cat-count { font-size: 0.77rem; color: var(--text-muted); margin-top: 4px; }

.symptom-back-btn {
  background: none; border: 1px solid var(--border);
  border-radius: var(--radius); padding: 8px 16px;
  font-size: 0.88rem; font-weight: 500; cursor: pointer;
  color: var(--text-secondary); margin-bottom: 24px;
  transition: all 0.2s;
}
.symptom-back-btn:hover { border-color: var(--accent); color: var(--accent); }

.symptom-list { display: flex; flex-direction: column; gap: 10px; margin-bottom: 28px; }
.symptom-item {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px 18px;
  cursor: pointer;
  font-weight: 600;
  color: var(--text-primary);
  transition: all 0.2s;
  display: flex; align-items: center; justify-content: space-between;
}
.symptom-item:hover { border-color: var(--accent); color: var(--accent); background: var(--accent-glow); }
.symptom-item-arrow { color: var(--text-muted); }

.symptom-result-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
  margin-top: 4px;
}
.symptom-result-title { font-family: var(--font-display); font-size: 1.3rem; font-weight: 700; color: var(--text-primary); margin-bottom: 8px; }
.symptom-result-causes { margin: 18px 0; }
.symptom-result-causes h3 { font-size: 1rem; margin-bottom: 12px; }
.cause-item {
  display: flex; align-items: flex-start; gap: 10px;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 12px 14px;
  margin-bottom: 8px;
}
.cause-severity { font-weight: 700; font-size: 0.78rem; padding: 2px 8px; border-radius: 10px; flex-shrink: 0; margin-top: 2px; }
.cause-sev-high { background: rgba(220,38,38,0.12); color: var(--red); }
.cause-sev-med  { background: rgba(202,138,4,0.12); color: var(--yellow); }
.cause-sev-low  { background: rgba(22,163,74,0.12); color: var(--green); }
.cause-body { flex: 1; }
.cause-name { font-weight: 600; color: var(--text-primary); font-size: 0.9rem; margin-bottom: 4px; }
.cause-desc { font-size: 0.82rem; color: var(--text-muted); line-height: 1.55; }

.symptom-obd-tags { display: flex; flex-wrap: wrap; gap: 8px; margin: 12px 0; }
.obd-tag {
  background: var(--accent-glow); border: 1px solid var(--accent);
  color: var(--accent); border-radius: 6px;
  padding: 4px 10px; font-size: 0.8rem; font-weight: 700;
  cursor: pointer; transition: all 0.2s;
}
.obd-tag:hover { background: var(--accent); color: #fff; }
.symptom-guide-links { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 12px; }
.symptom-guide-link {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 6px 14px;
  font-size: 0.82rem; font-weight: 600; cursor: pointer;
  color: var(--text-secondary); transition: all 0.2s;
}
.symptom-guide-link:hover { border-color: var(--accent); color: var(--accent); }

/* =============================================
   TOOLS VIEW
   ============================================= */
.tools-tab-bar {
  display: flex; gap: 8px; flex-wrap: wrap;
  margin-bottom: 28px;
  border-bottom: 1px solid var(--border);
  padding-bottom: 16px;
}
.tools-tab {
  background: none; border: none; cursor: pointer;
  font-family: var(--font-body); font-size: 0.88rem; font-weight: 600;
  color: var(--text-muted); padding: 8px 16px; border-radius: 8px;
  transition: all 0.2s;
}
.tools-tab:hover { color: var(--text-primary); background: var(--bg-card); }
.tools-tab.active { color: var(--accent); background: var(--accent-glow); }
.tool-panel { display: none; }
.tool-panel.active { display: block; }
.tool-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px;
}
.tool-card h2 { margin-bottom: 8px; }
.tool-form-row { display: flex; gap: 16px; flex-wrap: wrap; align-items: flex-end; }
.tool-form-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 16px; }
.tool-results-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 16px;
  margin-top: 24px;
}
.tool-result-card {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  text-align: center;
}
.tool-result-label { font-size: 0.77rem; text-transform: uppercase; letter-spacing: 0.07em; color: var(--text-muted); margin-bottom: 8px; }
.tool-result-value { font-family: var(--font-display); font-size: 1.6rem; font-weight: 700; color: var(--accent); }
.tool-result-sub { font-size: 0.77rem; color: var(--text-muted); margin-top: 4px; }

/* Maintenance schedule items */
.maint-list { margin-top: 24px; display: flex; flex-direction: column; gap: 10px; }
.maint-item {
  display: flex; align-items: center; gap: 14px;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px 18px;
}
.maint-status-dot {
  width: 12px; height: 12px; border-radius: 50%; flex-shrink: 0;
}
.maint-status-dot.overdue  { background: var(--red); }
.maint-status-dot.due      { background: var(--yellow); }
.maint-status-dot.upcoming { background: var(--green); }
.maint-item-name { font-weight: 600; color: var(--text-primary); font-size: 0.9rem; flex: 1; }
.maint-item-info { font-size: 0.78rem; color: var(--text-muted); }
.maint-item-status { font-size: 0.78rem; font-weight: 700; padding: 3px 10px; border-radius: 10px; }
.maint-status-overdue { background: rgba(220,38,38,0.12); color: var(--red); }
.maint-status-due     { background: rgba(202,138,4,0.12); color: var(--yellow); }
.maint-status-upcoming{ background: rgba(22,163,74,0.12); color: var(--green); }
.maint-guide-link { font-size: 0.77rem; color: var(--accent); cursor: pointer; text-decoration: underline; margin-left: 4px; }

/* Tire comparison table */
.tire-compare-table { width: 100%; border-collapse: collapse; margin-top: 20px; }
.tire-compare-table th, .tire-compare-table td { padding: 10px 14px; text-align: left; border-bottom: 1px solid var(--border); font-size: 0.88rem; }
.tire-compare-table th { font-weight: 700; color: var(--text-muted); font-size: 0.77rem; text-transform: uppercase; letter-spacing: 0.06em; }
.tire-delta-positive { color: var(--green); font-weight: 700; }
.tire-delta-negative { color: var(--red); font-weight: 700; }
.tire-delta-neutral  { color: var(--text-muted); }

/* Torque result highlight */
.torque-correction-result {
  margin-top: 24px;
  background: var(--accent-glow);
  border: 2px solid var(--accent);
  border-radius: var(--radius-lg);
  padding: 24px;
  text-align: center;
}
.torque-correction-result .big-value {
  font-family: var(--font-display);
  font-size: 3rem; font-weight: 900; color: var(--accent);
  line-height: 1;
}
.torque-correction-result .big-label { font-size: 0.88rem; color: var(--text-muted); margin-top: 6px; }
.torque-correction-explain { margin-top: 16px; font-size: 0.85rem; color: var(--text-secondary); line-height: 1.6; }

/* Brake cost table */
.brake-cost-table { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; margin-top: 24px; }
.brake-cost-col { background: var(--bg-surface); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 22px; }
.brake-cost-col h3 { margin-bottom: 14px; font-size: 1rem; }
.brake-cost-row-item { display: flex; justify-content: space-between; padding: 8px 0; border-bottom: 1px solid var(--border); font-size: 0.88rem; }
.brake-cost-row-item:last-child { border-bottom: none; font-weight: 700; }
.brake-cost-total { font-size: 1.3rem; font-weight: 900; color: var(--accent); font-family: var(--font-display); }

/* =============================================
   PRINT STYLES
   ============================================= */
@media print {
  body::before,
  .site-header,
  .site-footer,
  .nav-right-group,
  .back-btn,
  .guide-hero-bg,
  .quick-ref-strip,
  .detail-tabs,
  .guide-cat-btn,
  .guides-filter-bar,
  .guides-grid,
  .empty-state,
  #offline-banner,
  #cookie-banner,
  #toast,
  #loader,
  .guide-print-btn,
  .guide-share-btn,
  .guide-save-btn,
  .vehicle-share-btn,
  .vehicle-garage-btn {
    display: none !important;
  }
  .view { display: block !important; }
  .view:not(.active) { display: none !important; }
  .guide-detail-v2 { max-width: 100%; padding: 0; }
  .guide-hero { background: #fff !important; color: #000 !important; padding: 20px 0 16px; }
  .guide-hero-title { color: #000; font-size: 1.6rem; }
  .guide-hero-content { padding: 0; }
  .guide-hero-cat { color: #333; }
  .guide-hero-pills { display: none; }
  .guide-body { max-width: 100%; padding: 0; }
  .guide-section-v2 { page-break-inside: avoid; margin-bottom: 20px; }
  .step-card { page-break-inside: avoid; border: 1px solid #ddd; padding: 12px; margin-bottom: 12px; }
  .step-card-img-wrap { display: none; }
  .warning-box { border: 2px solid #dc2626; background: #fff; padding: 10px; margin-bottom: 8px; }
  .tip-box { border: 1px solid #ccc; background: #fff; padding: 10px; margin-bottom: 8px; }
  .checklist-section { display: none; }
  .safety-final { border: 2px solid #dc2626; padding: 12px; background: #fff; }
  * { color: #000 !important; background: #fff !important; box-shadow: none !important; }
  h1, h2, h3 { color: #000 !important; }
  .accent { color: #1d4ed8 !important; }
}

/* =============================================
   SHARE & PRINT BUTTONS
   ============================================= */
.guide-action-btns {
  display: flex; gap: 10px; flex-wrap: wrap;
  margin-top: 16px;
}
.guide-print-btn,
.guide-share-btn,
.guide-save-btn,
.vehicle-share-btn,
.vehicle-garage-btn {
  display: inline-flex; align-items: center; gap: 6px;
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 8px 16px;
  font-size: 0.85rem; font-weight: 600; cursor: pointer;
  color: var(--text-secondary);
  transition: all 0.2s; font-family: var(--font-body);
}
.guide-print-btn:hover, .guide-share-btn:hover { border-color: var(--accent); color: var(--accent); }
.vehicle-share-btn:hover { border-color: var(--accent); color: var(--accent); }
.vehicle-garage-btn { border-color: var(--border); }
.vehicle-garage-btn:hover, .vehicle-garage-btn.saved { border-color: #e11d48; color: #e11d48; background: rgba(225,29,72,0.07); }

/* (mobile rules consolidated into the block above) */

/* =============================================
   BETA BANNER — floating pill above hero heading
   ============================================= */
.beta-banner {
  display: inline-flex; align-items: center; gap: 10px;
  background: linear-gradient(135deg, rgba(249,115,22,0.15) 0%, rgba(234,88,12,0.1) 100%);
  border: 1px solid rgba(249,115,22,0.45);
  color: #fb923c;
  padding: 9px 38px 9px 18px;
  border-radius: 999px;
  font-size: 0.82rem; font-weight: 500;
  position: relative;
  margin-bottom: 28px;
  box-shadow: 0 0 24px rgba(249,115,22,0.18), 0 2px 12px rgba(0,0,0,0.25);
  backdrop-filter: blur(8px);
  line-height: 1.4;
  animation: beta-float 3.5s ease-in-out infinite;
}
@keyframes beta-float {
  0%, 100% { transform: translateY(0px); }
  50%       { transform: translateY(-4px); }
}
.beta-banner strong { color: #fdba74; }
.beta-banner a { color: #fdba74; text-decoration: underline; cursor: pointer; font-weight: 600; }
.beta-banner a:hover { color: #fff; }
.beta-banner-close {
  position: absolute; right: 12px; top: 50%; transform: translateY(-50%);
  background: none; border: none; color: #fb923c;
  font-size: 0.85rem; cursor: pointer; opacity: 0.6; line-height: 1;
  padding: 3px 5px; border-radius: 4px;
}
.beta-banner-close:hover { opacity: 1; }

/* =============================================
   MAINTENANCE LOG MODAL
   ============================================= */
.maint-log-entry {
  display: flex; align-items: flex-start; justify-content: space-between;
  padding: 10px 12px; border: 1px solid var(--border);
  border-radius: var(--radius); margin-bottom: 8px; background: var(--bg-card);
  gap: 10px;
}
.maint-log-entry-left { flex: 1; min-width: 0; }
.maint-log-entry-left strong { font-size: 0.9rem; }
.maint-log-meta {
  font-size: 0.75rem; color: var(--text-muted);
  display: block; margin-top: 3px;
}
.maint-log-note-text {
  font-size: 0.78rem; color: var(--text-secondary);
  display: block; margin-top: 4px; font-style: italic;
}
.maint-log-delete {
  background: none; border: none; color: var(--text-muted);
  cursor: pointer; font-size: 0.85rem; padding: 4px 7px;
  border-radius: 4px; flex-shrink: 0; transition: all 0.15s;
}
.maint-log-delete:hover { color: var(--red); background: rgba(220,38,38,0.1); }
.garage-log-btn {
  width: 100%; margin-top: 8px; padding: 6px 10px;
  background: var(--bg-base); border: 1px solid var(--border);
  border-radius: var(--radius); font-size: 0.78rem;
  color: var(--text-secondary); cursor: pointer;
  text-align: center; transition: all 0.2s; font-family: var(--font-body);
}
.garage-log-btn:hover { color: var(--accent); border-color: var(--accent); background: var(--accent-glow); }

/* =============================================
   GARAGE CARD PHOTO
   ============================================= */
.garage-card-photo-wrap {
  width: 100%; height: 110px; overflow: hidden;
  border-radius: calc(var(--radius) - 1px) calc(var(--radius) - 1px) 0 0;
  background: var(--bg-base); display: flex; align-items: center; justify-content: center;
  margin-bottom: 8px; flex-shrink: 0;
}
.garage-card-photo-wrap img {
  width: 100%; height: 100%; object-fit: cover;
}
.garage-card-photo-placeholder { font-size: 2.4rem; line-height: 1; }

/* =============================================
   FUEL COST CHART
   ============================================= */
.fuel-chart-wrap { margin-top: 24px; }
.fuel-chart-title { font-size: 0.82rem; color: var(--text-muted); margin-bottom: 12px; font-weight: 600; text-transform: uppercase; letter-spacing: 0.05em; }
.fuel-chart-bar-row { display: flex; align-items: center; gap: 10px; margin-bottom: 8px; }
.fuel-chart-row-label { min-width: 70px; font-size: 0.8rem; color: var(--text-secondary); text-align: right; }
.fuel-chart-track { flex: 1; background: var(--border); border-radius: 6px; height: 30px; overflow: hidden; position: relative; }
.fuel-chart-fill {
  height: 100%; border-radius: 6px; display: flex; align-items: center;
  padding: 0 12px; font-size: 0.8rem; font-weight: 600; color: #fff;
  transition: width 0.7s cubic-bezier(.4,0,.2,1);
}
.fuel-chart-fill.week  { background: linear-gradient(90deg, #2563eb, #0ea5e9); }
.fuel-chart-fill.month { background: linear-gradient(90deg, #7c3aed, #2563eb); }
.fuel-chart-fill.year  { background: linear-gradient(90deg, #dc2626, #7c3aed); }

/* =============================================
   TIRE SIZE VISUAL
   ============================================= */
.tire-visual-wrap {
  display: flex; gap: 40px; justify-content: center;
  align-items: flex-end; margin: 24px 0; flex-wrap: wrap;
}
.tire-visual-item { text-align: center; }
.tire-visual-label { font-size: 0.8rem; color: var(--text-muted); margin-bottom: 8px; font-weight: 600; }
.tire-visual-ring {
  border-radius: 50%; border: solid var(--accent);
  background: var(--border); display: flex;
  align-items: center; justify-content: center;
  margin: 0 auto;
}
.tire-visual-rim {
  border-radius: 50%; background: var(--bg-card);
  border: 2px solid var(--text-muted);
  display: flex; align-items: center; justify-content: center;
  font-size: 0.7rem; color: var(--text-muted); font-weight: 600;
}

@media (max-width: 600px) {
  .ai-chat-window { height: 340px; }
  .ai-msg-bubble  { max-width: 90%; }
  .fuel-chart-row-label { min-width: 52px; font-size: 0.72rem; }
}

/* =============================================
   ABOUT PAGE — embedded contact section
   ============================================= */
.about-contact-section {
  max-width: 900px;
  margin: 0 auto 48px;
  padding: 0 24px;
}

/* =============================================
   POLISH PASS — professional finish
   ============================================= */

/* Global focus ring */
*:focus-visible {
  outline: 2px solid rgba(59,130,246,0.7);
  outline-offset: 2px;
  border-radius: 4px;
}

/* Smooth transitions everywhere */
a, button, [role="button"] { transition: all 0.2s cubic-bezier(0.4,0,0.2,1); }

/* ---- Logo glow pulse ---- */
.logo-icon { animation: spin 8s linear infinite, logo-glow 3s ease-in-out infinite alternate; }
@keyframes logo-glow {
  from { filter: drop-shadow(0 0 4px rgba(59,130,246,0.4)); }
  to   { filter: drop-shadow(0 0 10px rgba(59,130,246,0.8)); }
}

/* ---- Hero: hero badge above h1 ---- */
.hero-badge {
  display: inline-flex; align-items: center; gap: 6px;
  background: rgba(59,130,246,0.1);
  border: 1px solid rgba(59,130,246,0.25);
  color: #60a5fa; font-size: 0.75rem; font-weight: 600;
  padding: 5px 14px; border-radius: 999px;
  margin-bottom: 20px; letter-spacing: 0.06em; text-transform: uppercase;
}
.hero-badge-dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: #60a5fa;
  animation: pulse-dot 2s ease-in-out infinite;
}
@keyframes pulse-dot {
  0%,100% { opacity: 1; transform: scale(1); }
  50%      { opacity: 0.4; transform: scale(0.7); }
}

/* ---- Stat card fade-in ---- */
@keyframes stat-in {
  from { opacity: 0; transform: translateY(12px); }
  to   { opacity: 1; transform: translateY(0); }
}
.hero-stats .stat-card { animation: stat-in 0.5s ease both; }
.hero-stats .stat-card:nth-child(2) { animation-delay: 0.08s; }
.hero-stats .stat-card:nth-child(3) { animation-delay: 0.16s; }
.hero-stats .stat-card:nth-child(4) { animation-delay: 0.24s; }

/* ---- OBD cards: severity left border ---- */
.obd-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px 20px;
  transition: border-color 0.2s, box-shadow 0.2s;
}
.obd-card:has(.sev-HIGH) { border-left: 3px solid var(--red); }
.obd-card:has(.sev-MED)  { border-left: 3px solid var(--yellow); }
.obd-card:has(.sev-LOW)  { border-left: 3px solid var(--green); }
.obd-card:hover { border-color: var(--border-bright); box-shadow: 0 4px 20px rgba(0,0,0,0.3); }

/* ---- Vehicle card polish ---- */
.vehicle-card { transition: all 0.22s cubic-bezier(0.4,0,0.2,1); }
.vehicle-card:active { transform: translateY(-1px) scale(0.99); }

/* ---- Back button polish ---- */
.back-btn {
  font-size: 0.82rem; font-weight: 600;
  letter-spacing: 0.03em;
}

/* ---- Detail tab polish ---- */
.detail-tab { font-size: 0.85rem; letter-spacing: 0.02em; padding: 12px 22px; }
.detail-tab.active { font-weight: 600; }

/* ---- Spec item polish ---- */
.spec-item {
  background: linear-gradient(160deg, rgba(22,32,46,0.9) 0%, rgba(15,22,32,0.9) 100%);
  transition: border-color 0.2s;
}
.spec-item:hover { border-color: var(--border-bright); }

/* ---- Page header polish ---- */
.page-header h1 {
  background: linear-gradient(135deg, var(--text-primary) 0%, #9db8d2 100%);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
  display: inline-block;
}

/* ---- Footer links ---- */
.footer-links { display: flex; gap: 16px; flex-wrap: wrap; }
.footer-links a {
  color: var(--text-muted); cursor: pointer; font-size: 0.78rem;
  text-decoration: none; transition: color 0.2s;
  border-bottom: 1px solid transparent;
}
.footer-links a:hover { color: var(--accent); border-bottom-color: var(--accent); }

/* ---- Toast: above mobile bottom nav ---- */
@media (max-width: 768px) {
  .toast { bottom: 76px; right: 16px; left: 16px; max-width: none; text-align: center; }
}

/* ---- Offline banner polish ---- */
.offline-banner {
  background: rgba(234,179,8,0.12);
  border-top: 1px solid rgba(234,179,8,0.3);
  color: var(--yellow); font-size: 0.82rem; font-weight: 500;
  text-align: center; padding: 10px 16px; letter-spacing: 0.01em;
}

/* ---- Cookie banner polish ---- */
.cookie-banner {
  position: fixed; bottom: 0; left: 0; right: 0; z-index: 998;
  background: rgba(15,22,32,0.97);
  border-top: 1px solid var(--border);
  backdrop-filter: blur(12px);
  padding: 16px 24px;
}
.cookie-inner { max-width: 1000px; margin: 0 auto; }
@media (max-width: 768px) {
  .cookie-banner { bottom: 64px; }
}

/* ---- Guide section headers ---- */
.guide-section-v2 h2 { letter-spacing: 0.04em; }

/* ---- Make chip: add letter spacing ---- */
.make-chip { letter-spacing: 0.02em; }

/* ---- Input number arrows hide ---- */
input[type="number"]::-webkit-inner-spin-button,
input[type="number"]::-webkit-outer-spin-button { -webkit-appearance: none; }
input[type="number"] { -moz-appearance: textfield; appearance: textfield; }

/* ---- Section header spacing ---- */
.section-header { margin-bottom: 32px; }
.section-header h2 { font-size: 1.35rem; }
.section-header p { font-size: 0.9rem; margin-top: 6px; color: var(--text-muted); }

/* ---- Feature section heading fix (no accent bar on grid container) ---- */
.features-section .section-header h2::before { display: none; }

/* ---- Smooth card hover language ---- */
.vehicle-card, .guide-card, .feature-card, .make-chip, .stat-card, .garage-card, .obd-card {
  will-change: transform;
}