/* ==========================================================================
   GarageVault Unified Stylesheet
   CSS3 Custom Properties & BEM Methodology
   ========================================================================== */

:root {
  /* Color Palette */
  --primary: #0F62FE;
  --primary-hover: #0043CE;
  --secondary: #2563EB;
  --accent: #3B82F6;
  --success: #10B981;
  --warning: #F59E0B;
  --danger: #EF4444;

  /* Theme Dynamic Tokens - Light Mode Default */
  --bg-main: #FFFFFF;
  --bg-alt: #F8FAFC;
  --surface: #FFFFFF;
  --surface-border: #E2E8F0;
  --text-main: #0F172A;
  --text-secondary: #64748B;
  --shadow-sm: 0 2px 4px rgba(15, 23, 42, 0.05);
  --shadow-lg: 0 12px 32px rgba(15, 23, 42, 0.08);
  --glass-bg: rgba(255, 255, 255, 0.75);
  --glass-border: rgba(226, 232, 240, 0.8);

  /* Layout & Geometry */
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --container-max: 1200px;
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;
}

[data-theme="dark"] {
  --bg-main: #0F172A;
  --bg-alt: #0B1120;
  --surface: #1E293B;
  --surface-border: #334155;
  --text-main: #F8FAFC;
  --text-secondary: #94A3B8;
  --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.3);
  --shadow-lg: 0 12px 32px rgba(0, 0, 0, 0.4);
  --glass-bg: rgba(30, 41, 59, 0.75);
  --glass-border: rgba(51, 65, 85, 0.8);
}

/* Reset & Base */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  background-color: var(--bg-main);
  color: var(--text-main);
  line-height: 1.6;
}

body {
  overflow-x: hidden;
  transition: background-color var(--transition-normal), color var(--transition-normal);
}

a {
  color: var(--primary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--primary-hover);
}

/* Layout Utilities */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
}

.container--narrow {
  max-width: 800px;
}

.section {
  padding: 96px 0;
}

.section--alt {
  background-color: var(--bg-alt);
}

.text-center { text-align: center; }
.text-secondary { color: var(--text-secondary); }
.text-success { color: var(--success); }
.text-accent { color: var(--accent); }
.mb-4 { margin-bottom: 24px; }
.justify-center { justify-content: center; }

/* Grid System */
.grid {
  display: grid;
  gap: 32px;
}

.grid--2 { grid-template-columns: repeat(2, 1fr); }
.grid--3 { grid-template-columns: repeat(3, 1fr); }
.grid--align-center { align-items: center; }

@media (max-width: 900px) {
  .grid--2, .grid--3 { grid-template-columns: 1fr; }
}

/* Buttons & Badges */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 24px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast), background-color var(--transition-fast);
}

.btn--primary {
  background-color: var(--primary);
  color: #FFFFFF;
}

.btn--primary:hover {
  background-color: var(--primary-hover);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(15, 98, 254, 0.3);
}

.btn--secondary {
  background-color: var(--surface);
  color: var(--text-main);
  border: 1px solid var(--surface-border);
}

.btn--secondary:hover:not(:disabled) {
  background-color: var(--bg-alt);
}

.btn--lg {
  padding: 16px 32px;
  font-size: 1.05rem;
  border-radius: var(--radius-md);
}

.btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.badge {
  display: inline-block;
  padding: 6px 14px;
  border-radius: 50px;
  font-size: 0.85rem;
  font-weight: 600;
  background-color: rgba(15, 98, 254, 0.1);
  color: var(--primary);
  margin-bottom: 16px;
}

.badge--accent {
  background-color: rgba(59, 130, 246, 0.15);
  color: var(--accent);
}

.badge--success {
  background-color: rgba(16, 185, 129, 0.15);
  color: var(--success);
}

/* Header & Sticky Nav */
.navbar {
  position: sticky;
  top: 0;
  z-index: 1000;
  background-color: var(--glass-bg);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--glass-border);
  transition: background-color var(--transition-normal);
}

.navbar__container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 80px;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
}

.navbar__brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--text-main);
}

.navbar__menu {
  display: flex;
  align-items: center;
  gap: 28px;
}

.navbar__link {
  color: var(--text-secondary);
  font-weight: 500;
}

.navbar__link:hover, .navbar__link.active {
  color: var(--primary);
}

.navbar__actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

.theme-toggle {
  background: transparent;
  border: 1px solid var(--surface-border);
  border-radius: 50%;
  width: 40px;
  height: 40px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-main);
}

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
}

.hamburger__bar {
  width: 24px;
  height: 2px;
  background-color: var(--text-main);
}

@media (max-width: 900px) {
  .hamburger { display: flex; }
  .navbar__menu {
    position: absolute;
    top: 80px;
    left: 0;
    width: 100%;
    flex-direction: column;
    background-color: var(--surface);
    border-bottom: 1px solid var(--surface-border);
    padding: 24px;
    display: none;
  }
  .navbar__menu.is-open { display: flex; }
}

/* Hero Section */
.hero {
  position: relative;
  padding: 120px 0 80px;
  overflow: hidden;
}

.hero__background {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
}

.hero__glow {
  position: absolute;
  border-radius: 50%;
  filter: blur(100px);
  opacity: 0.15;
}

.hero__glow--1 {
  width: 400px;
  height: 400px;
  background-color: var(--primary);
  top: -100px;
  left: -100px;
}

.hero__glow--2 {
  width: 500px;
  height: 500px;
  background-color: var(--accent);
  bottom: -150px;
  right: -150px;
}

.hero__container {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 48px;
  align-items: center;
}

@media (max-width: 1024px) {
  .hero__container { grid-template-columns: 1fr; text-align: center; }
  .hero__actions { justify-content: center; }
}

.hero__title {
  font-size: 3rem;
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: 20px;
  letter-spacing: -0.02em;
}

.hero__subtitle {
  font-size: 1.2rem;
  color: var(--text-secondary);
  margin-bottom: 32px;
}

.hero__actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 32px;
}

.hero__meta {
  display: flex;
  gap: 24px;
  font-size: 0.9rem;
  color: var(--text-secondary);
}

/* Cards & Feature Grid */
.card {
  background-color: var(--surface);
  border: 1px solid var(--surface-border);
  border-radius: var(--radius-md);
  padding: 32px;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.card--glass {
  background: var(--glass-bg);
  backdrop-filter: blur(12px);
  border-color: var(--glass-border);
}

.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.feature-card__icon {
  font-size: 2.5rem;
  margin-bottom: 16px;
}

.feature-card__title {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.feature-card__text {
  color: var(--text-secondary);
  font-size: 0.95rem;
}

/* Device Mockup */
.device-frame {
  background-color: var(--surface);
  border: 1px solid var(--surface-border);
  border-radius: var(--radius-lg);
  padding: 16px;
  box-shadow: var(--shadow-lg);
}

.mockup-dashboard {
  background-color: var(--bg-alt);
  border-radius: var(--radius-md);
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.mockup-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.mockup-subtitle { font-size: 0.75rem; color: var(--text-secondary); }
.mockup-title { font-weight: 700; }

.mockup-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.mockup-card {
  background: var(--surface);
  padding: 12px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--surface-border);
}

.mockup-card__label { font-size: 0.75rem; color: var(--text-secondary); display: block; }
.mockup-card__val { font-size: 1.1rem; font-weight: 700; display: block; }
.mockup-card__sub { font-size: 0.7rem; }

.mockup-progress {
  height: 6px;
  background-color: var(--surface-border);
  border-radius: 3px;
  margin: 8px 0;
  overflow: hidden;
}

.mockup-progress__bar {
  height: 100%;
  background-color: var(--primary);
}

/* Section Headers */
.section-header {
  margin-bottom: 64px;
}

.section-title {
  font-size: 2.25rem;
  font-weight: 800;
  margin-bottom: 12px;
}

.section-subtitle {
  color: var(--text-secondary);
  font-size: 1.1rem;
}

/* Benefits & Stats */
.benefit-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.benefit-item {
  display: flex;
  gap: 16px;
}

.benefit-item__check {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background-color: rgba(16, 185, 129, 0.15);
  color: var(--success);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  flex-shrink: 0;
}

.stats-box {
  display: flex;
  flex-direction: column;
  gap: 32px;
}

.stat-item__number {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--primary);
  display: block;
}

.stat-item__label {
  color: var(--text-secondary);
  font-size: 0.95rem;
}

/* Live Dashboard Preview */
.preview-board {
  display: flex;
  flex-direction: column;
  gap: 32px;
}

.preview-board__metrics {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

@media (max-width: 768px) {
  .preview-board__metrics { grid-template-columns: 1fr 1fr; }
}

.metric {
  background: var(--bg-alt);
  padding: 16px;
  border-radius: var(--radius-sm);
}

.metric__label { font-size: 0.8rem; color: var(--text-secondary); display: block; }
.metric__val { font-size: 1.3rem; font-weight: 700; }

.preview-board__graph {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  height: 200px;
  padding-top: 20px;
  border-bottom: 2px solid var(--surface-border);
}

.graph-bar-group {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  height: 100%;
  justify-content: flex-end;
  width: 10%;
}

.graph-bar {
  width: 100%;
  height: var(--height);
  background-color: var(--primary);
  border-radius: 4px 4px 0 0;
  position: relative;
  transition: height 0.5s ease;
}

.graph-bar__tooltip {
  position: absolute;
  top: -28px;
  left: 50%;
  transform: translateX(-50%);
  font-size: 0.75rem;
  font-weight: 600;
  background: var(--surface);
  padding: 2px 6px;
  border-radius: 4px;
  border: 1px solid var(--surface-border);
}

/* Timeline */
.timeline {
  display: flex;
  flex-direction: column;
  gap: 24px;
  position: relative;
  max-width: 800px;
  margin: 0 auto;
}

.timeline__item {
  display: flex;
  gap: 24px;
  align-items: flex-start;
}

.timeline__node {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background-color: var(--primary);
  color: #FFFFFF;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  flex-shrink: 0;
}

/* Carousel */
.carousel { position: relative; }
.carousel__viewport { overflow: hidden; border-radius: var(--radius-md); }
.carousel__track { display: flex; transition: transform var(--transition-normal); }
.carousel__slide { min-width: 100%; padding: 0 12px; }

.screen-card {
  background: var(--surface);
  border: 1px solid var(--surface-border);
  border-radius: var(--radius-md);
  padding: 48px 24px;
  text-align: center;
}

.screen-card__tag {
  display: inline-block;
  padding: 4px 12px;
  background: var(--bg-alt);
  border-radius: 20px;
  font-size: 0.8rem;
  margin-bottom: 12px;
}

.carousel__controls {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  margin-top: 24px;
}

.carousel__btn {
  background: var(--surface);
  border: 1px solid var(--surface-border);
  width: 40px;
  height: 40px;
  border-radius: 50%;
  cursor: pointer;
  font-size: 1.2rem;
  color: var(--text-main);
}

/* FAQ Accordion */
.accordion {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.accordion__item {
  background: var(--surface);
  border: 1px solid var(--surface-border);
  border-radius: var(--radius-sm);
  padding: 16px 24px;
}

.accordion__header {
  font-weight: 600;
  cursor: pointer;
  list-style: none;
}

.accordion__content {
  margin-top: 12px;
  color: var(--text-secondary);
  font-size: 0.95rem;
}

/* CTA Section */
.cta-section {
  background: linear-gradient(135deg, rgba(15, 98, 254, 0.05), rgba(59, 130, 246, 0.1));
  border-top: 1px solid var(--surface-border);
  border-bottom: 1px solid var(--surface-border);
}

.cta-section__title {
  font-size: 2.5rem;
  font-weight: 800;
  margin-bottom: 16px;
}

.cta-section__text {
  font-size: 1.15rem;
  color: var(--text-secondary);
  margin-bottom: 32px;
}

/* Footer */
.footer {
  padding: 80px 0 32px;
  background: var(--bg-alt);
  border-top: 1px solid var(--surface-border);
}

.footer__grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 64px;
}

@media (max-width: 768px) {
  .footer__grid { grid-template-columns: 1fr; }
}

.footer__desc {
  margin-top: 16px;
  color: var(--text-secondary);
  font-size: 0.9rem;
}

.footer__heading {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 16px;
}

.footer__links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer__links a {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

.footer__bottom {
  border-top: 1px solid var(--surface-border);
  padding-top: 32px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: var(--text-secondary);
  font-size: 0.85rem;
}

/* Legal Document Styles */
.doc-header { margin-bottom: 32px; }
.doc-card { padding: 48px; }
.doc-toc {
  background: var(--bg-alt);
  padding: 24px;
  border-radius: var(--radius-sm);
  margin-bottom: 32px;
}
.doc-toc ul { list-style: none; margin-top: 12px; }
.doc-toc li { margin-bottom: 8px; }
.doc-content section { margin-bottom: 32px; }
.doc-content h2 { margin-bottom: 12px; font-size: 1.3rem; }
.doc-content ul { margin-left: 20px; margin-top: 8px; }

/* Scroll Animation */
.animate-fade {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.animate-fade.is-visible {
  opacity: 1;
  transform: translateY(0);
}