/* ==========================================================================
   Which Car Should I Buy — Design System
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. CUSTOM PROPERTIES (Design Tokens)
   -------------------------------------------------------------------------- */
:root {
  /* Colors */
  --bg: #0e1110;
  --bg-elevated: #151917;
  --panel: #1a201d;
  --panel-hover: #202824;
  --text: #f5f1e8;
  --text-secondary: #c2b8a3;
  --muted: #8f8776;
  --brand: #f2a93b;
  --brand-hover: #ffc46b;
  --brand2: #2bb3a4;
  --brand2-hover: #4ccbbd;
  --border: rgba(245, 241, 232, 0.08);
  --border-strong: rgba(245, 241, 232, 0.14);
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.25);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.35);
  --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.45);
  --shadow-glow: 0 0 40px rgba(242, 169, 59, 0.18);

  /* Spacing scale */
  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 16px;
  --space-lg: 24px;
  --space-xl: 32px;
  --space-2xl: 48px;
  --space-3xl: 64px;

  /* Typography */
  --font-sans: 'Inter', ui-sans-serif, system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --font-mono: ui-monospace, 'SF Mono', Monaco, 'Cascadia Code', monospace;

  /* Sizing */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 20px;
  --radius-full: 9999px;
  --max-width: 1140px;

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 200ms ease;
  --transition-slow: 300ms ease;
}

/* --------------------------------------------------------------------------
   2. RESET & BASE
   -------------------------------------------------------------------------- */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&display=swap');

*, *::before, *::after {
  box-sizing: border-box;
}

* {
  margin: 0;
}

html {
  height: 100%;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  min-height: 100%;
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  color: var(--text);
  background: var(--bg);
  background-image:
    radial-gradient(ellipse 1000px 500px at 65% -5%, rgba(242, 169, 59, 0.16), transparent 60%),
    radial-gradient(ellipse 800px 400px at 25% 5%, rgba(43, 179, 164, 0.12), transparent 50%);
  background-attachment: fixed;
}

img, picture, video, canvas, svg {
  display: block;
  max-width: 100%;
}

input, button, textarea, select {
  font: inherit;
}

a {
  color: inherit;
  text-decoration: none;
}

/* --------------------------------------------------------------------------
   3. TYPOGRAPHY
   -------------------------------------------------------------------------- */
h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--text);
}

h1 {
  font-size: clamp(1.875rem, 4vw, 2.75rem);
  font-weight: 800;
  margin-bottom: var(--space-md);
}

h2 {
  font-size: clamp(1.375rem, 3vw, 1.75rem);
  margin-bottom: var(--space-md);
}

h3 {
  font-size: 1.125rem;
  font-weight: 600;
}

p {
  color: var(--text-secondary);
}

.kicker {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--brand);
  margin-bottom: var(--space-sm);
}

.lede {
  font-size: 1.0625rem;
  line-height: 1.65;
  color: var(--text-secondary);
  margin-bottom: var(--space-lg);
}

.small {
  font-size: 0.875rem;
  color: var(--muted);
}

.meta {
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* --------------------------------------------------------------------------
   4. LAYOUT
   -------------------------------------------------------------------------- */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

.section {
  padding: var(--space-2xl) 0;
}

.section h2 {
  margin-bottom: var(--space-lg);
}

/* --------------------------------------------------------------------------
   5. HEADER & NAVIGATION
   -------------------------------------------------------------------------- */
header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(14, 17, 16, 0.85);
  backdrop-filter: saturate(180%) blur(16px);
  -webkit-backdrop-filter: saturate(180%) blur(16px);
  border-bottom: 1px solid var(--border);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-md) 0;
  gap: var(--space-md);
}

.brand {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-weight: 800;
  font-size: 1rem;
  letter-spacing: -0.01em;
  white-space: nowrap;
  transition: opacity var(--transition-fast);
}

.brand:hover {
  opacity: 0.85;
}

.logo {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, var(--brand), var(--brand2));
  box-shadow: var(--shadow-sm), 0 0 20px rgba(242, 169, 59, 0.3);
  flex-shrink: 0;
}

.navlinks {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
}

.navlinks a {
  padding: var(--space-sm) var(--space-md);
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--text-secondary);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.navlinks a:hover {
  color: var(--text);
  background: rgba(255, 255, 255, 0.05);
}

/* Mobile menu toggle */
.menu-toggle {
  display: none;
  padding: var(--space-sm);
  background: transparent;
  border: none;
  cursor: pointer;
  color: var(--text);
}

.menu-toggle svg {
  width: 24px;
  height: 24px;
}

@media (max-width: 860px) {
  .menu-toggle {
    display: flex;
  }

  .navlinks {
    position: fixed;
    top: 69px;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: var(--space-xs);
    padding: var(--space-md);
    background: var(--bg-elevated);
    border-bottom: 1px solid var(--border);
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
  }

  .navlinks.open {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }

  .navlinks a {
    padding: var(--space-md);
  }

  .navlinks .btn {
    margin-top: var(--space-sm);
  }
}

/* --------------------------------------------------------------------------
   6. BUTTONS
   -------------------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: 12px 20px;
  font-size: 0.9375rem;
  font-weight: 600;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-strong);
  background: rgba(255, 255, 255, 0.04);
  color: var(--text);
  cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.btn:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.18);
  transform: translateY(-1px);
}

.btn:active {
  transform: translateY(0);
}

.btn.primary {
  background: linear-gradient(135deg, rgba(242, 169, 59, 0.25), rgba(43, 179, 164, 0.15));
  border-color: rgba(242, 169, 59, 0.4);
  box-shadow: var(--shadow-sm), 0 0 20px rgba(242, 169, 59, 0.1);
}

.btn.primary:hover {
  background: linear-gradient(135deg, rgba(242, 169, 59, 0.35), rgba(43, 179, 164, 0.2));
  border-color: rgba(242, 169, 59, 0.5);
  box-shadow: var(--shadow-md), 0 0 30px rgba(242, 169, 59, 0.15);
}

.btn.tesla {
  background: linear-gradient(135deg, rgba(43, 179, 164, 0.2), rgba(242, 169, 59, 0.12));
  border-color: rgba(43, 179, 164, 0.4);
}

.btn.tesla:hover {
  background: linear-gradient(135deg, rgba(43, 179, 164, 0.3), rgba(242, 169, 59, 0.18));
  border-color: rgba(43, 179, 164, 0.5);
}

.actions {
  display: flex;
  gap: var(--space-md);
  flex-wrap: wrap;
  align-items: center;
}

/* --------------------------------------------------------------------------
   7. CARDS
   -------------------------------------------------------------------------- */
.card {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.04), rgba(255, 255, 255, 0.01));
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-md);
  transition: all var(--transition-base);
}

.card:hover {
  border-color: var(--border-strong);
}

.card.pad {
  padding: var(--space-lg);
}

@media (min-width: 861px) {
  .card.pad {
    padding: var(--space-xl);
  }
}

.article-card {
  padding: var(--space-lg);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  background: linear-gradient(180deg, rgba(26, 32, 29, 0.8), rgba(26, 32, 29, 0.6));
  transition: all var(--transition-base);
}

.article-card:hover {
  border-color: var(--border-strong);
  background: linear-gradient(180deg, rgba(26, 32, 29, 0.9), rgba(26, 32, 29, 0.7));
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.article-card a {
  display: block;
}

.article-card h3 {
  margin: var(--space-sm) 0;
  transition: color var(--transition-fast);
}

.article-card:hover h3 {
  color: var(--brand);
}

.article-card .lede {
  margin: 0;
  font-size: 0.9375rem;
}

/* --------------------------------------------------------------------------
   8. TILES
   -------------------------------------------------------------------------- */
.tile {
  display: block;
  padding: var(--space-md) var(--space-lg);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  background: rgba(26, 32, 29, 0.6);
  transition: all var(--transition-base);
}

.tile:hover {
  border-color: rgba(242, 169, 59, 0.3);
  background: rgba(26, 32, 29, 0.85);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md), 0 0 30px rgba(242, 169, 59, 0.08);
}

.tile h3 {
  margin: var(--space-sm) 0;
  transition: color var(--transition-fast);
}

.tile:hover h3 {
  color: var(--brand);
}

.tile p {
  margin: 0;
  font-size: 0.9375rem;
  color: var(--muted);
}

.tile-figure {
  margin: var(--space-sm) 0;
  border-radius: var(--radius-md);
  overflow: hidden;
}

.tile-media {
  width: 100%;
  height: 120px;
  display: block;
  object-fit: cover;
}

/* --------------------------------------------------------------------------
   9. BADGES
   -------------------------------------------------------------------------- */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 5px 10px;
  font-size: 0.6875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--brand);
  background: rgba(242, 169, 59, 0.1);
  border: 1px solid rgba(242, 169, 59, 0.2);
  border-radius: var(--radius-full);
}

/* --------------------------------------------------------------------------
   10. HERO SECTION
   -------------------------------------------------------------------------- */
.hero {
  padding: var(--space-2xl) 0 var(--space-xl);
}

@media (min-width: 861px) {
  .hero {
    padding: var(--space-3xl) 0 var(--space-2xl);
  }
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.3fr 0.7fr;
  gap: var(--space-lg);
  align-items: stretch;
}

@media (max-width: 860px) {
  .hero-grid {
    grid-template-columns: 1fr;
  }
}

/* --------------------------------------------------------------------------
   11. GRIDS
   -------------------------------------------------------------------------- */
.grid3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
}

@media (max-width: 860px) {
  .grid3 {
    grid-template-columns: 1fr;
  }
}

.featured {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-md);
}

@media (max-width: 860px) {
  .featured {
    grid-template-columns: 1fr;
  }
}

.media-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: var(--space-md);
  align-items: start;
}

@media (max-width: 860px) {
  .media-grid {
    grid-template-columns: 1fr;
  }
}

/* --------------------------------------------------------------------------
   12. CALLOUTS & NOTICES
   -------------------------------------------------------------------------- */
.notice {
  padding: var(--space-md) var(--space-lg);
  border-radius: var(--radius-md);
  border: 1px solid rgba(242, 169, 59, 0.25);
  background: rgba(242, 169, 59, 0.06);
  color: var(--text-secondary);
  font-size: 0.9375rem;
}

.notice strong {
  color: var(--text);
}

.callout {
  display: flex;
  gap: var(--space-xl);
  align-items: center;
  justify-content: space-between;
  padding: var(--space-lg);
}

@media (min-width: 861px) {
  .callout {
    padding: var(--space-xl);
  }
}

@media (max-width: 860px) {
  .callout {
    flex-direction: column;
    align-items: stretch;
    text-align: center;
  }
}

.cta-card {
  padding: var(--space-lg);
  border-radius: var(--radius-lg);
  border: 1px solid rgba(43, 179, 164, 0.2);
  background: rgba(43, 179, 164, 0.04);
}

/* --------------------------------------------------------------------------
   13. FORMS
   -------------------------------------------------------------------------- */
input, textarea {
  width: 100%;
  padding: 14px 16px;
  font-size: 1rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-strong);
  background: rgba(0, 0, 0, 0.3);
  color: var(--text);
  transition: all var(--transition-fast);
}

input:focus, textarea:focus {
  outline: none;
  border-color: var(--brand);
  box-shadow: 0 0 0 3px rgba(242, 169, 59, 0.15);
}

input::placeholder, textarea::placeholder {
  color: var(--muted);
}

label {
  display: block;
  margin-bottom: var(--space-sm);
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-secondary);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-md);
}

/* --------------------------------------------------------------------------
   14. TABLES
   -------------------------------------------------------------------------- */
table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  overflow: hidden;
  font-size: 0.9375rem;
}

th, td {
  padding: var(--space-md);
  border-bottom: 1px solid var(--border);
  vertical-align: top;
  text-align: left;
}

th {
  background: rgba(255, 255, 255, 0.03);
  font-weight: 600;
  color: var(--text);
}

tr:last-child td {
  border-bottom: none;
}

tr:hover td {
  background: rgba(255, 255, 255, 0.02);
}

/* --------------------------------------------------------------------------
   15. PROSE (Article content)
   -------------------------------------------------------------------------- */
.prose {
  padding: var(--space-xl);
}

@media (min-width: 861px) {
  .prose {
    padding: var(--space-2xl);
  }
}

.prose h1 {
  font-size: clamp(1.75rem, 3.5vw, 2.25rem);
}

.prose h2 {
  margin-top: var(--space-xl);
  padding-top: var(--space-lg);
  border-top: 1px solid var(--border);
}

.prose h2:first-of-type {
  border-top: none;
  padding-top: 0;
}

.prose h3 {
  margin-top: var(--space-lg);
}

.prose p {
  margin-bottom: var(--space-md);
}

.prose a {
  color: var(--brand);
  text-decoration: underline;
  text-decoration-color: rgba(242, 169, 59, 0.3);
  text-underline-offset: 2px;
  transition: all var(--transition-fast);
}

.prose a:hover {
  color: var(--brand-hover);
  text-decoration-color: var(--brand);
}

.prose ul, .prose ol {
  margin-bottom: var(--space-md);
  padding-left: var(--space-lg);
  color: var(--text-secondary);
}

.prose li {
  margin-bottom: var(--space-sm);
}

.prose li::marker {
  color: var(--muted);
}

.prose blockquote {
  margin: var(--space-lg) 0;
  padding: var(--space-md) var(--space-lg);
  border-left: 3px solid var(--brand);
  background: rgba(242, 169, 59, 0.05);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  font-style: italic;
  color: var(--text-secondary);
}

.prose strong {
  color: var(--text);
  font-weight: 600;
}

/* --------------------------------------------------------------------------
   16. BREADCRUMBS
   -------------------------------------------------------------------------- */
.breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  margin-bottom: var(--space-md);
  font-size: 0.875rem;
  color: var(--muted);
}

.breadcrumbs a {
  transition: color var(--transition-fast);
}

.breadcrumbs a:hover {
  color: var(--text);
}

/* --------------------------------------------------------------------------
   17. MEDIA
   -------------------------------------------------------------------------- */
.hero-media {
  width: 100%;
  height: auto;
  display: block;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  background: rgba(0, 0, 0, 0.2);
}

.hero-figure {
  margin: var(--space-md) 0;
}

/* --------------------------------------------------------------------------
   18. UTILITIES
   -------------------------------------------------------------------------- */
hr.sep {
  border: none;
  border-top: 1px solid var(--border);
  margin: var(--space-lg) 0;
}

/* --------------------------------------------------------------------------
   19. FOOTER
   -------------------------------------------------------------------------- */
.footer {
  padding: var(--space-2xl) 0;
  color: var(--muted);
  border-top: 1px solid var(--border);
  margin-top: var(--space-2xl);
  background: linear-gradient(180deg, transparent, rgba(0, 0, 0, 0.2));
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: var(--space-xl);
  margin-bottom: var(--space-xl);
}

@media (max-width: 640px) {
  .footer-grid {
    grid-template-columns: 1fr;
  }
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.footer-brand img {
  opacity: 0.85;
}

.footer-brand-text {
  font-weight: 700;
  color: var(--text);
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm) var(--space-lg);
}

.footer a {
  color: var(--muted);
  transition: color var(--transition-fast);
}

.footer a:hover {
  color: var(--text);
}

.footer-bottom {
  padding-top: var(--space-lg);
  border-top: 1px solid var(--border);
}

.footer-bottom p {
  margin-bottom: var(--space-sm);
}

.footer-bottom p:last-child {
  margin-bottom: 0;
}

/* --------------------------------------------------------------------------
   20. ACCESSIBILITY
   -------------------------------------------------------------------------- */
:focus-visible {
  outline: 2px solid var(--brand);
  outline-offset: 2px;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* Reduce motion for users who prefer it */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  html {
    scroll-behavior: auto;
  }
}