/* ==========================================================================
   MotoPulse - Heritage Retro Biker Edition
   Clean, Neat, Authentic Motorcycle Instrumentation
   Supports Both Dark (Midnight Garage) and Light (Heritage Canvas) Modes
   ========================================================================== */

/* ================= THEME VARIABLES (Ridez / Ferrari Red Palette) ================= */
:root, [data-theme="dark"], body.theme-dark {
  /* Black Theme: Deep Jet Black Background & Containers */
  --bg-app: #0B0C0E;
  --bg-card: #131519;
  --bg-card-subtle: #1B1E24;
  --bg-input: #0E1013;
  --bg-header: rgba(11, 12, 14, 0.96);
  --bg-nav: rgba(11, 12, 14, 0.98);
  --bg-modal: #131519;
  --bg-odo-drum: #07080A;
  
  --border-subtle: rgba(255, 255, 255, 0.08);
  --border-metal: rgba(255, 255, 255, 0.16);
  --border-focus: var(--accent-primary);
  
  --text-main: #FFFFFF;
  --text-muted: #9FA6B2;
  --text-dim: #6E7582;
  
  --badge-plate-bg: rgba(217, 11, 31, 0.14);
  --badge-plate-border: rgba(217, 11, 31, 0.45);
  --card-shadow: 0 4px 24px rgba(0, 0, 0, 0.65);
  --pinstripe: rgba(217, 11, 31, 0.35);
  --drum-text: #ffffff;
}

[data-theme="light"], body.theme-light {
  /* White Theme: Pure Crisp White Background & White Cards */
  --bg-app: #FFFFFF;
  --bg-card: #FFFFFF;
  --bg-card-subtle: #F6F7F9;
  --bg-input: #F8F9FA;
  --bg-header: rgba(255, 255, 255, 0.96);
  --bg-nav: rgba(255, 255, 255, 0.98);
  --bg-modal: #FFFFFF;
  --bg-odo-drum: #151619;
  
  --border-subtle: #EBEEF2;
  --border-metal: #DDE1E6;
  --border-focus: var(--accent-primary);
  
  --text-main: #111315;
  --text-muted: #636B74;
  --text-dim: #8C939D;
  
  --badge-plate-bg: rgba(217, 11, 31, 0.08);
  --badge-plate-border: rgba(217, 11, 31, 0.35);
  --card-shadow: 0 2px 14px rgba(0, 0, 0, 0.06);
  --pinstripe: rgba(217, 11, 31, 0.22);
  --drum-text: #ffffff;
}

/* ================= ACCENT PALETTES ================= */
/* Default: Ridez / Ferrari Scarlet Red (#D90B1F) */
:root, [data-accent="ferrari"], [data-accent="red"], body.accent-ferrari, body.accent-red {
  --accent-primary: #D90B1F;
  --accent-primary-hover: #B80012;
  --accent-subtle: rgba(217, 11, 31, 0.12);
  --accent-badge-text: #D90B1F;
}

/* Safety Orange (#FF5722) */
[data-accent="orange"], body.accent-orange {
  --accent-primary: #FF5722;
  --accent-primary-hover: #F4511E;
  --accent-subtle: rgba(255, 87, 34, 0.16);
  --accent-badge-text: #E64A19;
}

/* High-Visibility Neon Mint (#00E676) */
[data-accent="mint"], body.accent-mint {
  --accent-primary: #00E676;
  --accent-primary-hover: #00C853;
  --accent-subtle: rgba(0, 230, 118, 0.16);
  --accent-badge-text: #00B0FF;
}

/* Speedo Gold */
[data-accent="amber"], body.accent-amber {
  --accent-primary: #f59e0b;
  --accent-primary-hover: #d97706;
  --accent-subtle: rgba(245, 158, 11, 0.14);
  --accent-badge-text: #b45309;
}

/* Cafe Crimson */
[data-accent="crimson"], body.accent-crimson {
  --accent-primary: #ef4444;
  --accent-primary-hover: #dc2626;
  --accent-subtle: rgba(239, 68, 68, 0.14);
  --accent-badge-text: #b91c1c;
}

/* Racing Green */
[data-accent="emerald"], body.accent-emerald {
  --accent-primary: #10b981;
  --accent-primary-hover: #059669;
  --accent-subtle: rgba(16, 185, 129, 0.14);
  --accent-badge-text: #047857;
}

/* Heritage Saddle */
[data-accent="saddle"], body.accent-saddle {
  --accent-primary: #d97706;
  --accent-primary-hover: #b45309;
  --accent-subtle: rgba(217, 119, 6, 0.16);
  --accent-badge-text: #92400e;
}

/* Sterling Chrome */
[data-accent="steel"], body.accent-steel {
  --accent-primary: #94a3b8;
  --accent-primary-hover: #64748b;
  --accent-subtle: rgba(148, 163, 184, 0.16);
  --accent-badge-text: #475569;
}

/* ================= SEMANTIC ALERTS ================= */
:root {
  --accent-cyan: #06b6d4;
  --accent-cyan-subtle: rgba(6, 182, 212, 0.12);
  
  /* Semantic Alerts */
  --status-good: #2E7D32;
  --status-good-bg: rgba(46, 125, 50, 0.16);
  --status-warn: #EF6C00;
  --status-warn-bg: rgba(239, 108, 0, 0.16);
  --status-danger: #C62828;
  --status-danger-bg: rgba(198, 40, 40, 0.16);

  --font-retro-heading: 'Cinzel', serif;
  --font-retro-sub: 'Space Grotesk', -apple-system, sans-serif;
  --font-main: 'Outfit', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', Consolas, monospace;

  --radius-xs: 6px;
  --radius-sm: 10px;
  --radius-md: 14px;
  --radius-lg: 18px;
  --radius-full: 9999px;

  --bottom-nav-height: 64px;
}

/* ================= Reset & Base ================= */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  -webkit-tap-highlight-color: transparent;
}

html, body {
  width: 100%;
  height: 100%;
  background-color: var(--bg-app);
  color: var(--text-main);
  font-family: var(--font-main);
  font-size: 15px;
  line-height: 1.45;
  overflow: hidden;
  user-select: none;
  -webkit-font-smoothing: antialiased;
  transition: background-color 0.25s ease, color 0.25s ease;
}

/* Native Full-Screen App Screen */
.app-screen {
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  position: relative;
  background-color: var(--bg-app);
}

/* ================= Minimal Retro Top Header ================= */
.app-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: calc(env(safe-area-inset-top, 0px) + 10px) 16px 10px;
  background-color: var(--bg-header);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border-subtle);
  z-index: 40;
  transition: background-color 0.2s ease, border-color 0.2s ease;
}

.bike-selector-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 12px;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: all 0.15s ease;
  max-width: 55%;
  box-shadow: 0 1px 3px rgba(0,0,0,0.08);
}

.bike-selector-pill:active {
  background: var(--bg-card-subtle);
  transform: scale(0.98);
}

.bike-selector-icon {
  width: 17px;
  height: 17px;
  color: var(--accent-primary);
  flex-shrink: 0;
}

.bike-selector-name {
  font-family: var(--font-retro-sub);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.5px;
  color: var(--text-main);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.bike-selector-arrow {
  font-size: 9px;
  color: var(--text-dim);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 7px;
}

.icon-button {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  color: var(--text-main);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.15s ease;
  position: relative;
  box-shadow: 0 1px 3px rgba(0,0,0,0.06);
}

.icon-button:active {
  background: var(--bg-card-subtle);
  transform: scale(0.95);
}

/* ================= Screen Scrollable Container ================= */
.screen-scroll-container {
  flex: 1;
  overflow-y: auto;
  overflow-x: hidden;
  -webkit-overflow-scrolling: touch;
  padding: 14px 16px calc(var(--bottom-nav-height) + env(safe-area-inset-bottom, 0px) + 20px);
}

/* Tab View switching */
.tab-view {
  display: none;
}

.tab-view.active {
  display: block;
  animation: tabFadeIn 0.18s ease;
}

@keyframes tabFadeIn {
  from { opacity: 0; transform: translateY(3px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ================= Minimal Clean Cards ================= */
.clean-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 16px;
  margin-bottom: 14px;
  box-shadow: var(--card-shadow);
  transition: background-color 0.2s ease, border-color 0.2s ease;
  position: relative;
}

/* ================= Bike Hero Card (Retro Biker Model) ================= */
.bike-hero-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  overflow: hidden;
  margin-bottom: 14px;
  position: relative;
  box-shadow: var(--card-shadow);
}

.bike-hero-media {
  position: relative;
  width: 100%;
  height: 180px;
  background: #000;
  overflow: hidden;
}

.bike-hero-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.bike-hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(0,0,0,0.1) 0%, rgba(14, 15, 20, 0.85) 100%);
}

.bike-photo-upload-btn {
  position: absolute;
  bottom: 12px;
  right: 12px;
  padding: 6px 11px;
  background: rgba(0, 0, 0, 0.68);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(255, 255, 255, 0.25);
  border-radius: var(--radius-full);
  color: #fff;
  font-size: 11px;
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 5px;
  cursor: pointer;
  letter-spacing: 0.3px;
}

.bike-hero-body {
  padding: 14px 16px;
}

.bike-hero-row {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 10px;
}

.bike-name {
  font-family: var(--font-retro-heading);
  font-size: 20px;
  font-weight: 700;
  color: var(--text-main);
  line-height: 1.25;
  letter-spacing: 0.8px;
  text-transform: uppercase;
}

.bike-plate-badge {
  display: inline-block;
  padding: 3px 8px;
  background: var(--badge-plate-bg);
  border: 1px solid var(--badge-plate-border);
  border-radius: 4px;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  color: var(--accent-primary);
  letter-spacing: 0.8px;
  text-transform: uppercase;
  margin-top: 4px;
}

.btn-edit-bike {
  padding: 6px 12px;
  background: var(--bg-card-subtle);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  color: var(--text-main);
  font-size: 12px;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 5px;
  cursor: pointer;
  flex-shrink: 0;
  font-family: var(--font-retro-sub);
}

.btn-edit-bike:active {
  background: var(--accent-subtle);
}

.bike-specs-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 16px;
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px solid var(--border-subtle);
}

.spec-item {
  display: flex;
  flex-direction: column;
}

.spec-label {
  font-size: 10px;
  color: var(--text-dim);
  text-transform: uppercase;
  font-weight: 700;
  letter-spacing: 0.6px;
}

.spec-val {
  font-size: 13px;
  font-weight: 700;
  color: var(--text-main);
  font-family: var(--font-mono);
}

/* ================= Retro Mechanical Drum Odometer ================= */
.retro-drum-counter {
  display: inline-flex;
  align-items: baseline;
  gap: 4px;
  background: var(--bg-odo-drum);
  border: 1.5px solid var(--border-metal);
  border-radius: 6px;
  padding: 3px 8px;
  box-shadow: inset 0 2px 4px rgba(0,0,0,0.45);
  position: relative;
}

.drum-digits {
  font-family: var(--font-mono);
  font-size: 18px;
  font-weight: 800;
  letter-spacing: 1.5px;
  color: var(--drum-text);
  line-height: 1.2;
}

.drum-unit {
  font-size: 10px;
  font-weight: 700;
  color: var(--accent-primary);
  font-family: var(--font-mono);
  letter-spacing: 0.5px;
}

/* ================= 4-Grid Glanceable Instrument Stats ================= */
.stats-grid-4 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
  margin-bottom: 14px;
}

.stat-tile {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 12px 14px;
  cursor: pointer;
  transition: all 0.15s ease;
  box-shadow: var(--card-shadow);
  position: relative;
}

.stat-tile:active {
  background: var(--bg-card-subtle);
  transform: scale(0.98);
}

.stat-tile-label {
  font-size: 11px;
  color: var(--text-muted);
  font-weight: 600;
  display: flex;
  justify-content: space-between;
  align-items: center;
  text-transform: uppercase;
  letter-spacing: 0.4px;
}

.stat-tile-value {
  font-size: 20px;
  font-weight: 700;
  color: var(--text-main);
  font-family: var(--font-mono);
  margin-top: 5px;
  line-height: 1.2;
}

.stat-tile-unit {
  font-size: 12px;
  font-weight: 600;
  color: var(--text-dim);
  margin-left: 2px;
}

/* ================= Alert Strip ================= */
.alert-strip {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  margin-bottom: 14px;
  font-size: 12px;
  line-height: 1.4;
}

.alert-strip.info {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  color: var(--text-muted);
}

.alert-strip.warning {
  background: var(--status-warn-bg);
  border: 1px solid rgba(245, 158, 11, 0.3);
  color: var(--status-warn);
}

.alert-strip.danger {
  background: var(--status-danger-bg);
  border: 1px solid rgba(239, 68, 68, 0.3);
  color: var(--status-danger);
}

.alert-strip-text {
  flex: 1;
}

.alert-strip-btn {
  padding: 5px 11px;
  background: rgba(255, 255, 255, 0.14);
  border: none;
  border-radius: var(--radius-xs);
  color: inherit;
  font-size: 11px;
  font-weight: 700;
  cursor: pointer;
  letter-spacing: 0.3px;
}

/* ================= Section Headers ================= */
.section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin: 18px 0 10px;
}

.section-title {
  font-family: var(--font-retro-sub);
  font-size: 12px;
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.8px;
  display: flex;
  align-items: center;
  gap: 6px;
}

.section-action-btn {
  font-size: 12px;
  color: var(--accent-primary);
  background: none;
  border: none;
  font-weight: 700;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-family: var(--font-retro-sub);
}

/* ================= Primary / Secondary Buttons ================= */
.btn-primary {
  width: 100%;
  padding: 12px 16px;
  background: var(--accent-primary);
  border: none;
  border-radius: var(--radius-sm);
  color: #000;
  font-size: 14px;
  font-weight: 700;
  font-family: var(--font-retro-sub);
  letter-spacing: 0.4px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  transition: all 0.15s ease;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.2);
}

.btn-primary:active {
  background: var(--accent-primary-hover);
  transform: scale(0.98);
}

.btn-secondary {
  padding: 10px 14px;
  background: var(--bg-card-subtle);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  color: var(--text-main);
  font-size: 13px;
  font-weight: 600;
  font-family: var(--font-retro-sub);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  transition: all 0.15s ease;
}

.btn-secondary:active {
  background: var(--accent-subtle);
  transform: scale(0.98);
}

/* ================= Log Entry Cards (Refuel & Service) ================= */
.log-item-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 12px 14px;
  margin-bottom: 10px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 10px;
  box-shadow: var(--card-shadow);
}

.log-item-main {
  flex: 1;
  min-width: 0;
}

.log-item-title {
  font-size: 14px;
  font-weight: 700;
  color: var(--text-main);
  display: flex;
  align-items: center;
  gap: 8px;
  letter-spacing: 0.2px;
}

.log-item-meta {
  font-size: 11px;
  color: var(--text-muted);
  margin-top: 3px;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  align-items: center;
}

.log-item-right {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 4px;
}

.log-item-cost {
  font-size: 15px;
  font-weight: 700;
  color: var(--text-main);
  font-family: var(--font-mono);
}

.log-item-badge {
  font-size: 11px;
  font-weight: 700;
  font-family: var(--font-mono);
  padding: 2px 7px;
  border-radius: 4px;
  background: var(--accent-subtle);
  color: var(--accent-primary);
  border: 1px solid rgba(245, 158, 11, 0.2);
}

.item-action-btns {
  display: flex;
  gap: 6px;
  margin-top: 4px;
}

.btn-mini-action {
  background: none;
  border: 1px solid var(--border-subtle);
  border-radius: 4px;
  color: var(--text-muted);
  font-size: 10px;
  font-weight: 600;
  padding: 3px 7px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 3px;
  font-family: var(--font-retro-sub);
}

.btn-mini-action:active {
  background: var(--accent-subtle);
  color: var(--accent-primary);
}

.btn-mini-action.danger {
  color: var(--status-danger);
  border-color: rgba(239, 68, 68, 0.3);
}

/* ================= Service Checklist Cards ================= */
.service-component-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 12px 14px;
  margin-bottom: 10px;
  box-shadow: var(--card-shadow);
}

.service-component-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 8px;
}

.service-component-title {
  font-size: 14px;
  font-weight: 700;
  color: var(--text-main);
  letter-spacing: 0.2px;
}

.service-stats-line {
  font-size: 11px;
  color: var(--text-muted);
  margin-top: 3px;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  align-items: center;
}

.service-stats-line strong {
  color: var(--text-main);
}

.service-status-pill {
  font-size: 10px;
  font-weight: 800;
  text-transform: uppercase;
  padding: 2px 7px;
  border-radius: 4px;
  letter-spacing: 0.6px;
}

.service-status-pill.good {
  background: var(--status-good-bg);
  color: var(--status-good);
}

.service-status-pill.warn {
  background: var(--status-warn-bg);
  color: var(--status-warn);
}

.service-status-pill.danger {
  background: var(--status-danger-bg);
  color: var(--status-danger);
}

.progress-track {
  width: 100%;
  height: 6px;
  background: rgba(125, 125, 125, 0.15);
  border-radius: 3px;
  overflow: hidden;
  margin: 7px 0;
}

.progress-fill {
  height: 100%;
  border-radius: 3px;
  transition: width 0.3s ease;
}

.progress-fill.good { background: var(--status-good); }
.progress-fill.warn { background: var(--status-warn); }
.progress-fill.danger { background: var(--status-danger); }

.service-component-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 11px;
  color: var(--text-dim);
  margin-top: 6px;
}

/* ================= Document Locker Cards & Upload ================= */
.doc-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 14px;
  margin-bottom: 12px;
  box-shadow: var(--card-shadow);
}

.doc-card-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 10px;
}

.doc-info {
  flex: 1;
}

.doc-title {
  font-size: 14px;
  font-weight: 700;
  color: var(--text-main);
  letter-spacing: 0.3px;
}

.doc-number {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--accent-primary);
  margin-top: 2px;
  font-weight: 600;
}

.doc-expiry-row {
  font-size: 11px;
  color: var(--text-muted);
  margin-top: 4px;
  display: flex;
  align-items: center;
  gap: 6px;
}

.doc-badge {
  font-size: 10px;
  font-weight: 800;
  padding: 2px 7px;
  border-radius: 4px;
  text-transform: uppercase;
  letter-spacing: 0.6px;
}

.doc-badge.active { background: var(--status-good-bg); color: var(--status-good); }
.doc-badge.expiring { background: var(--status-warn-bg); color: var(--status-warn); }
.doc-badge.expired { background: var(--status-danger-bg); color: var(--status-danger); }
.doc-badge.neutral { background: rgba(125, 125, 125, 0.12); color: var(--text-muted); }

/* Document File Attachment Preview Area */
.doc-attachment-row {
  margin-top: 12px;
  padding-top: 10px;
  border-top: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.doc-preview-thumb {
  width: 54px;
  height: 40px;
  border-radius: 6px;
  object-fit: cover;
  background: #000;
  border: 1px solid var(--border-subtle);
  cursor: pointer;
}

.doc-file-info {
  flex: 1;
  min-width: 0;
  font-size: 11px;
  color: var(--text-muted);
}

.doc-actions-row {
  display: flex;
  gap: 8px;
}

.btn-doc-action {
  padding: 6px 10px;
  background: var(--bg-card-subtle);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xs);
  color: var(--text-main);
  font-size: 11px;
  font-weight: 600;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-family: var(--font-retro-sub);
}

.btn-doc-action:active {
  background: var(--accent-subtle);
}

.btn-doc-action.primary {
  background: var(--accent-subtle);
  color: var(--accent-primary);
  border-color: rgba(245, 158, 11, 0.3);
}

/* ================= Pre-Ride Checklist ================= */
.checklist-item {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 12px 14px;
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  gap: 12px;
  cursor: pointer;
  transition: all 0.15s ease;
  box-shadow: var(--card-shadow);
}

.checklist-item.checked {
  background: var(--status-good-bg);
  border-color: rgba(16, 185, 129, 0.3);
}

.check-circle {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  border: 2px solid var(--text-dim);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: all 0.15s ease;
  font-weight: 700;
}

.checklist-item.checked .check-circle {
  background: var(--status-good);
  border-color: var(--status-good);
  color: #000;
}

.checklist-content {
  flex: 1;
}

.checklist-title {
  font-size: 14px;
  font-weight: 700;
  color: var(--text-main);
  letter-spacing: 0.2px;
}

.checklist-desc {
  font-size: 11px;
  color: var(--text-muted);
  margin-top: 1px;
  line-height: 1.35;
}

/* ================= Bottom Navigation Bar ================= */
.bottom-nav {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: calc(var(--bottom-nav-height) + env(safe-area-inset-bottom, 0px));
  padding-bottom: env(safe-area-inset-bottom, 0px);
  background-color: var(--bg-nav);
  backdrop-filter: blur(16px);
  border-top: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: space-around;
  z-index: 50;
  transition: background-color 0.2s ease, border-color 0.2s ease;
}

.nav-item {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: none;
  border: none;
  color: var(--text-dim);
  font-size: 10px;
  font-weight: 600;
  font-family: var(--font-retro-sub);
  padding: 6px 0;
  cursor: pointer;
  transition: color 0.15s ease;
  gap: 4px;
  letter-spacing: 0.4px;
  text-transform: uppercase;
}

.nav-item svg {
  width: 20px;
  height: 20px;
  stroke-width: 2;
  transition: transform 0.15s ease;
}

.nav-item.active {
  color: var(--accent-primary);
}

.nav-item.active svg {
  transform: translateY(-1px);
}

/* ================= Modal Bottom Sheets & Dialogs ================= */
.modal-overlay {
  position: fixed;
  inset: 0;
  background-color: rgba(0, 0, 0, 0.72);
  backdrop-filter: blur(5px);
  z-index: 100;
  display: none;
  align-items: flex-end;
  justify-content: center;
}

.modal-overlay.active {
  display: flex;
  animation: overlayFade 0.2s ease;
}

@keyframes overlayFade {
  from { opacity: 0; }
  to { opacity: 1; }
}

.modal-bottom-sheet {
  width: 100%;
  max-width: 520px;
  max-height: 88vh;
  background-color: var(--bg-modal);
  border-top-left-radius: 20px;
  border-top-right-radius: 20px;
  border: 1px solid var(--border-subtle);
  border-bottom: none;
  padding: 16px 20px calc(24px + env(safe-area-inset-bottom, 0px));
  overflow-y: auto;
  box-shadow: 0 -10px 40px rgba(0, 0, 0, 0.5);
  animation: slideUp 0.25s cubic-bezier(0.16, 1, 0.3, 1);
  color: var(--text-main);
  transition: background-color 0.2s ease;
}

@keyframes slideUp {
  from { transform: translateY(100%); }
  to { transform: translateY(0); }
}

.modal-handle-bar {
  width: 100%;
  padding-bottom: 12px;
  display: flex;
  justify-content: center;
  cursor: pointer;
}

.modal-handle {
  width: 38px;
  height: 4px;
  background: var(--border-metal);
  border-radius: 2px;
}

.modal-header-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
}

.modal-title {
  font-family: var(--font-retro-heading);
  font-size: 17px;
  font-weight: 700;
  color: var(--text-main);
  letter-spacing: 0.6px;
  text-transform: uppercase;
}

.modal-close-btn {
  background: none;
  border: none;
  color: var(--text-dim);
  font-size: 20px;
  cursor: pointer;
  padding: 4px;
}

/* Form Controls */
.form-group {
  margin-bottom: 14px;
}

.form-label {
  display: block;
  font-size: 11px;
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.6px;
  margin-bottom: 6px;
  font-family: var(--font-retro-sub);
}

.form-input, .form-select, .form-textarea {
  width: 100%;
  padding: 11px 14px;
  background: var(--bg-input);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  color: var(--text-main);
  font-size: 14px;
  font-family: inherit;
  outline: none;
  transition: border-color 0.15s ease, background-color 0.2s ease;
}

.form-input:focus, .form-select:focus, .form-textarea:focus {
  border-color: var(--border-focus);
}

.form-row {
  display: flex;
  gap: 10px;
}

.form-row .form-group {
  flex: 1;
}

/* ================= SETTINGS & CUSTOMIZER STYLES ================= */
.settings-section-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 14px 16px;
  margin-bottom: 14px;
  box-shadow: var(--card-shadow);
}

.settings-section-header {
  font-family: var(--font-retro-sub);
  font-size: 11px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--accent-primary);
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 6px;
}

.theme-pill-group {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
  margin-bottom: 12px;
}

.theme-pill {
  padding: 10px 8px;
  background: var(--bg-card-subtle);
  border: 1.5px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  font-size: 12px;
  font-weight: 700;
  font-family: var(--font-retro-sub);
  cursor: pointer;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
  transition: all 0.15s ease;
}

.theme-pill.active {
  background: var(--accent-subtle);
  border-color: var(--accent-primary);
  color: var(--accent-primary);
}

.accent-swatch-group {
  display: flex;
  gap: 8px;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 14px;
}

.accent-swatch-btn {
  flex: 1;
  padding: 8px 4px;
  background: var(--bg-card-subtle);
  border: 1.5px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  cursor: pointer;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 5px;
  transition: all 0.15s ease;
}

.accent-swatch-circle {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  box-shadow: 0 1px 3px rgba(0,0,0,0.3);
}

.accent-swatch-label {
  font-size: 9px;
  font-weight: 700;
  color: var(--text-muted);
  font-family: var(--font-retro-sub);
  text-transform: uppercase;
  letter-spacing: 0.3px;
}

.accent-swatch-btn.active {
  border-color: var(--accent-primary);
  background: var(--accent-subtle);
}

.settings-toggle-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 0;
  border-bottom: 1px solid var(--border-subtle);
}

.settings-toggle-row:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

/* Fullscreen Document Viewer */
.doc-viewer-modal {
  position: fixed;
  inset: 0;
  background: #000;
  z-index: 200;
  display: none;
  flex-direction: column;
}

.doc-viewer-modal.active {
  display: flex;
}

.doc-viewer-header {
  padding: calc(env(safe-area-inset-top, 0px) + 12px) 16px 12px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: rgba(0, 0, 0, 0.85);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  color: #fff;
}

.doc-viewer-content {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
  overflow: auto;
}

.doc-viewer-content img {
  max-width: 100%;
  max-height: 80vh;
  object-fit: contain;
  border-radius: 8px;
}

.doc-viewer-footer {
  padding: 16px;
  padding-bottom: calc(env(safe-area-inset-bottom, 0px) + 16px);
  display: flex;
  gap: 10px;
  background: rgba(0, 0, 0, 0.85);
}

/* Toast Notice */
.toast-notice {
  position: fixed;
  bottom: calc(var(--bottom-nav-height) + env(safe-area-inset-bottom, 0px) + 14px);
  left: 50%;
  transform: translateX(-50%) translateY(20px);
  background: var(--bg-card);
  border: 1px solid var(--border-metal);
  color: var(--text-main);
  padding: 9px 18px;
  border-radius: var(--radius-full);
  font-size: 12px;
  font-weight: 600;
  font-family: var(--font-retro-sub);
  box-shadow: 0 4px 18px rgba(0, 0, 0, 0.35);
  z-index: 150;
  opacity: 0;
  pointer-events: none;
  transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  display: flex;
  align-items: center;
  gap: 6px;
  white-space: nowrap;
}

.toast-notice.show {
  transform: translateX(-50%) translateY(0);
  opacity: 1;
}

/* Canvas Chart */
.chart-container {
  width: 100%;
  height: 160px;
  position: relative;
  margin-top: 8px;
}

.chart-container canvas {
  width: 100% !important;
  height: 100% !important;
}

/* ==========================================================================
   2. CORE INTERFACE LAYOUT STRUCTURE & KEY JOURNEYS
   ========================================================================== */

/* 1. The Unified Dashboard View */
.unified-dashboard-view {
  background: var(--bg-card);
  border: 1px solid var(--border-metal);
  border-radius: var(--radius-md);
  padding: 14px 16px;
  margin-bottom: 14px;
  box-shadow: var(--card-shadow);
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 12px;
  align-items: center;
  position: relative;
  overflow: hidden;
}

.unified-dashboard-view::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--accent-primary) 0%, transparent 100%);
}

.dash-flank {
  display: flex;
  flex-direction: column;
  justify-content: center;
  cursor: pointer;
}

.dash-flank.dash-odo {
  padding-right: 10px;
  border-right: 1px solid var(--border-subtle);
}

.dash-label {
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.6px;
  color: var(--text-muted);
  margin-bottom: 5px;
  display: flex;
  align-items: center;
  gap: 4px;
}

.dash-hint {
  font-size: 10px;
  color: var(--accent-primary);
  font-weight: 600;
  margin-top: 4px;
}

.dash-value-wrap {
  display: flex;
  align-items: baseline;
  gap: 4px;
}

.dash-value {
  font-family: var(--font-mono);
  font-size: 26px;
  font-weight: 800;
  color: var(--text-main);
  line-height: 1.1;
}

.dash-unit {
  font-size: 11px;
  font-weight: 700;
  color: var(--text-dim);
  font-family: var(--font-mono);
}

.dash-delta-tag {
  display: inline-flex;
  align-items: center;
  gap: 3px;
  font-size: 10px;
  font-weight: 700;
  padding: 2px 6px;
  border-radius: var(--radius-xs);
  margin-top: 4px;
  background: var(--bg-card-subtle);
  color: var(--text-dim);
  width: fit-content;
}

.dash-delta-tag.good {
  background: var(--status-good-bg);
  color: var(--status-good);
}

.dash-delta-tag.warn {
  background: var(--status-warn-bg);
  color: var(--status-warn);
}

/* 2. Component Health Rings */
.health-rings-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  margin-bottom: 14px;
}

.health-ring-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 12px 6px 10px;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  cursor: pointer;
  transition: all 0.15s ease;
  position: relative;
  box-shadow: var(--card-shadow);
}

.health-ring-card:active {
  transform: scale(0.97);
  background: var(--bg-card-subtle);
}

.health-ring-wrapper {
  position: relative;
  width: 64px;
  height: 64px;
  margin-bottom: 6px;
}

.health-ring-svg {
  width: 64px;
  height: 64px;
  transform: rotate(-90deg);
}

.health-ring-track {
  fill: none;
  stroke: var(--bg-card-subtle);
  stroke-width: 5.5;
}

.health-ring-progress {
  fill: none;
  stroke-width: 5.5;
  stroke-linecap: round;
  transition: stroke-dashoffset 0.6s cubic-bezier(0.16, 1, 0.3, 1), stroke 0.3s ease;
}

.health-ring-center {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.health-ring-pct {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 800;
  color: var(--text-main);
  line-height: 1;
}

.health-ring-title {
  font-size: 11px;
  font-weight: 700;
  color: var(--text-main);
  line-height: 1.2;
  margin-bottom: 2px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 90px;
}

.health-ring-sub {
  font-size: 9.5px;
  color: var(--text-dim);
  font-weight: 600;
  line-height: 1.1;
  font-family: var(--font-mono);
}

/* 3. Rapid Action Sheet (Fixed Bottom Interactive Panel) */
.rapid-action-sheet {
  position: fixed;
  bottom: calc(var(--bottom-nav-height) + env(safe-area-inset-bottom, 0px) + 8px);
  left: 12px;
  right: 12px;
  max-width: 500px;
  margin: 0 auto;
  display: flex;
  gap: 8px;
  z-index: 80;
  pointer-events: none;
}

.rapid-action-sheet > * {
  pointer-events: auto;
}

.btn-rapid-fuel {
  flex: 1.15;
  background: var(--accent-primary);
  color: #ffffff;
  border: none;
  border-radius: var(--radius-md);
  padding: 12px 14px;
  font-family: var(--font-retro-sub);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.3px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  cursor: pointer;
  box-shadow: 0 4px 16px rgba(217, 11, 31, 0.4);
  transition: all 0.15s ease;
}

.btn-rapid-fuel:active {
  transform: scale(0.97);
  background: var(--accent-primary-hover);
}

.btn-rapid-service {
  flex: 1;
  background: var(--bg-card);
  color: var(--text-main);
  border: 1.5px solid var(--border-metal);
  border-radius: var(--radius-md);
  padding: 12px 14px;
  font-family: var(--font-retro-sub);
  font-size: 13px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  cursor: pointer;
  box-shadow: var(--card-shadow);
  transition: all 0.15s ease;
}

.btn-rapid-service:active {
  transform: scale(0.97);
  background: var(--bg-card-subtle);
}

/* 4. Fuel & Mileage Log Frictionless Numerical Inputs & Variance Box */
.form-input-lg {
  height: 50px;
  font-size: 20px;
  font-weight: 800;
  font-family: var(--font-mono);
  color: var(--text-main);
  background: var(--bg-input);
  border: 1.5px solid var(--border-metal);
  border-radius: var(--radius-sm);
  padding: 0 12px;
  width: 100%;
  outline: none;
  transition: border-color 0.15s ease;
}

.form-input-lg:focus {
  border-color: var(--accent-primary);
}

.quick-stepper-row {
  display: flex;
  gap: 6px;
  margin-top: 6px;
}

.quick-step-btn {
  flex: 1;
  padding: 6px 4px;
  background: var(--bg-card-subtle);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xs);
  font-size: 11px;
  font-weight: 700;
  font-family: var(--font-mono);
  color: var(--text-muted);
  cursor: pointer;
  transition: all 0.12s ease;
}

.quick-step-btn:active {
  background: var(--accent-subtle);
  color: var(--accent-primary);
  border-color: var(--accent-primary);
}

.refuel-variance-box {
  background: var(--bg-card-subtle);
  border: 1px dashed var(--border-metal);
  border-radius: var(--radius-sm);
  padding: 10px 12px;
  margin: 10px 0;
  display: none;
}

.refuel-variance-box.active {
  display: block;
}

.variance-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 12px;
  margin-bottom: 4px;
}

.variance-row:last-child {
  margin-bottom: 0;
}

.variance-tag {
  font-family: var(--font-mono);
  font-weight: 800;
  font-size: 11px;
  padding: 2px 7px;
  border-radius: var(--radius-xs);
}

.variance-tag.better {
  background: var(--status-good-bg);
  color: var(--status-good);
}

.variance-tag.worse {
  background: var(--status-warn-bg);
  color: var(--status-warn);
}

/* 5. Chronological Service History Timeline */
.service-timeline {
  position: relative;
  padding-left: 28px;
  margin-top: 10px;
}

.service-timeline::before {
  content: '';
  position: absolute;
  top: 14px;
  bottom: 14px;
  left: 11px;
  width: 2px;
  background: var(--border-subtle);
}

.timeline-item {
  position: relative;
  margin-bottom: 14px;
}

.timeline-node {
  position: absolute;
  left: -28px;
  top: 10px;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--bg-card);
  border: 2px solid var(--accent-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
  box-shadow: 0 0 0 3px var(--bg-app);
  z-index: 2;
}

.timeline-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 12px 14px;
  box-shadow: var(--card-shadow);
  transition: all 0.15s ease;
}

.timeline-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 4px;
}

.timeline-title {
  font-size: 14px;
  font-weight: 700;
  color: var(--text-main);
  font-family: var(--font-retro-sub);
}

.timeline-cost {
  font-size: 14px;
  font-weight: 800;
  color: var(--accent-primary);
  font-family: var(--font-mono);
}

.timeline-meta-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  font-size: 11px;
  color: var(--text-muted);
  margin-bottom: 6px;
}

.parts-tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 5px;
  margin-top: 6px;
}

.part-tag {
  display: inline-flex;
  align-items: center;
  gap: 3px;
  padding: 2px 7px;
  border-radius: var(--radius-xs);
  background: var(--bg-card-subtle);
  border: 1px solid var(--border-subtle);
  font-size: 10px;
  font-weight: 600;
  color: var(--text-main);
}