/* ============================================
   DRIVE LINE MOTORS — Main Stylesheet
   ============================================
   Edit CSS variables in :root to customize colors,
   fonts, spacing globally. Dark mode is automatic.
   ============================================ */

/* ── Google Fonts ─────────────────────────── */
@import url('https://fonts.googleapis.com/css2?family=Cormorant+Garamond:ital,wght@0,300;0,400;0,600;1,300;1,400&family=DM+Sans:wght@300;400;500;600&display=swap');

/* ── CSS Variables ────────────────────────── */
:root {
  /* Force dark color scheme in ALL browsers (Edge, Chrome, Firefox, Safari).
     This prevents Edge from applying its own light theme on top of our styles. */
  color-scheme: dark;

  /* Colors */
  --c-bg: #0a0a0a;
  --c-surface: #121212;
  --c-surface2: #1a1a1a;
  --c-border: rgba(255, 255, 255, 0.08);
  --c-text: #f0ede8;
  --c-text-muted: #8a8a8a;
  --c-accent: #22c55e; /* ← Emerald green — change here */
  --c-accent-dim: rgba(34, 197, 94, 0.12);
  --c-accent-glow: rgba(34, 197, 94, 0.25);

  /* Typography */
  --font-display: 'Cormorant Garamond', Georgia, serif;
  --font-body: 'DM Sans', system-ui, sans-serif;

  /* Spacing scale */
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 2rem;
  --space-lg: 4rem;
  --space-xl: 8rem;

  /* Transitions */
  --ease: cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);

  /* Layout */
  --navbar-h: 72px;
  --max-w: 1280px;
  --radius: 4px;
  --radius-lg: 12px;
}

/* Light mode override */
/* @media (prefers-color-scheme: light) {
  :root {
    --c-bg: #f7f5f2;
    --c-surface: #ffffff;
    --c-surface2: #f0ede8;
    --c-border: rgba(0, 0, 0, 0.08);
    --c-text: #0a0a0a;
    --c-text-muted: #6b6b6b;
    --c-accent-dim: rgba(22, 163, 74, 0.08);
    --c-accent-glow: rgba(22, 163, 74, 0.18);
  }
} */

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
  color-scheme: dark; /* enforce dark in Edge/Chrome at document level */
}

body {
  font-family: var(--font-body);
  background: var(--c-bg);
  color: var(--c-text);
  line-height: 1.7;
  overflow-x: hidden;
  min-height: 100vh;
  color-scheme: dark;
}

/* Override Edge/Windows forced-colors (high contrast) mode —
   keeps our custom dark palette intact */
@media (forced-colors: active) {
  :root {
    --c-bg:         #0a0a0a;
    --c-surface:    #121212;
    --c-surface2:   #1a1a1a;
    --c-text:       #f0ede8;
    --c-text-muted: #8a8a8a;
    --c-border:     rgba(255,255,255,0.08);
    forced-color-adjust: none;
  }
  body {
    forced-color-adjust: none;
    background: #0a0a0a !important;
    color: #f0ede8 !important;
  }
}

/* RTL support */
[dir='rtl'] body {
  font-family: 'DM Sans', 'Segoe UI', Tahoma, Arial, sans-serif;
}

img {
  display: block;
  max-width: 100%;
  height: auto;
}
a {
  color: inherit;
  text-decoration: none;
}
ul {
  list-style: none;
}
button {
  cursor: pointer;
  border: none;
  background: none;
  font-family: inherit;
  color: inherit;
}

/* ── Typography ───────────────────────────── */
h1,
h2,
h3,
h4 {
  font-family: var(--font-display);
  font-weight: 300;
  line-height: 1.15;
  letter-spacing: -0.01em;
}

h1 {
  font-size: clamp(2.8rem, 7vw, 6rem);
}
h2 {
  font-size: clamp(2rem, 4vw, 3.5rem);
}
h3 {
  font-size: clamp(1.3rem, 2.5vw, 1.9rem);
}
h4 {
  font-size: 1.1rem;
  font-weight: 400;
}

p {
  color: var(--c-text-muted);
  max-width: 65ch;
}

/* ── Layout Helpers ───────────────────────── */
.container {
  width: 100%;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 var(--space-md);
}

.section {
  padding: var(--space-xl) 0;
  text-align: center;
}

.section-label {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--c-accent);
  margin-bottom: var(--space-sm);
}

.section-title {
  margin-bottom: var(--space-sm);
  color: var(--c-text);
}

.section-subtitle {
  font-size: 1.05rem;
  color: var(--c-text-muted);
  max-width: 55ch;
  margin: 0 auto var(--space-lg);
}

/* ── Navbar ───────────────────────────────── */
.navbar {
  /* position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--navbar-h);
  display: flex;
  align-items: center;
  background: rgba(10, 10, 10, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--c-border);
  transition:
    background 0.3s var(--ease),
    border-color 0.3s var(--ease); */

  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--navbar-h);
  display: flex;
  align-items: center;
  background: #0a0a0a;
  border-bottom: 1px solid var(--c-border);
}

/* @media (prefers-color-scheme: light) {
  .navbar {
    background: rgba(247, 245, 242, 0.9);
  }
} */

/* .navbar.scrolled {
  background: var(--c-bg);
  border-color: var(--c-border);
} */

.navbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 var(--space-md);
  position: relative;
}

/* Hamburger — left */
.hamburger {
  display: flex;
  flex-direction: column;
  gap: 5px;
  width: 28px;
  padding: 4px 0;
  z-index: 1001;
  flex-shrink: 0;
  aria-label: 'Toggle menu';
}

.hamburger span {
  display: block;
  height: 1.5px;
  background: var(--c-text);
  border-radius: 2px;
  transition:
    transform 0.4s var(--ease-out),
    opacity 0.3s,
    width 0.3s;
  transform-origin: left center;
}

.hamburger span:nth-child(2) {
  width: 18px;
}

.hamburger.active span:nth-child(1) {
  transform: rotate(45deg) translateY(-1px);
}
.hamburger.active span:nth-child(2) {
  opacity: 0;
  width: 0;
}
.hamburger.active span:nth-child(3) {
  transform: rotate(-45deg) translateY(1px);
}

/* Logo — center */
.navbar-logo {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  line-height: 1;
  text-align: center;
}

.logo-wordmark {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--c-text);
  white-space: nowrap;
}

.logo-wordmark span {
  color: var(--c-accent);
}

.logo-tagline {
  font-size: 0.55rem;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--c-text-muted);
  margin-top: 2px;
}

/* Language switcher — right */
.lang-switcher {
  position: relative;
  flex-shrink: 0;
}

.lang-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  color: var(--c-text-muted);
  padding: 6px 12px;
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  transition:
    color 0.2s,
    border-color 0.2s;
}

.lang-btn:hover {
  color: var(--c-text);
  border-color: var(--c-accent);
}

.lang-btn svg {
  transition: transform 0.3s var(--ease);
}
.lang-btn[aria-expanded='true'] svg {
  transform: rotate(180deg);
}

.lang-dropdown {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  min-width: 130px;
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  opacity: 0;
  pointer-events: none;
  transform: translateY(-8px);
  transition:
    opacity 0.25s var(--ease),
    transform 0.25s var(--ease);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
  text-align: center;
}

[dir='rtl'] .lang-dropdown {
  right: auto;
  left: 0;
}

.lang-dropdown.open {
  opacity: 1;
  pointer-events: all;
  transform: translateY(0);
}

.lang-dropdown a {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 16px;
  font-size: 0.85rem;
  color: var(--c-text-muted);
  transition:
    background 0.2s,
    color 0.2s;
}

.lang-dropdown a:hover {
  background: var(--c-accent-dim);
  color: var(--c-text);
}
.lang-dropdown a.active {
  color: var(--c-accent);
}

/* Nav menu */
.nav-menu {
  position: fixed;
  top: 0;
  left: 0;
  width: min(340px, 90vw);
  height: 100dvh;
  background: var(--c-surface);
  border-right: 1px solid var(--c-border);
  z-index: 999;
  transform: translateX(-100%);
  transition: transform 0.5s var(--ease-out);
  display: flex;
  flex-direction: column;
  padding-top: var(--navbar-h);
}

.nav-menu.open {
  transform: translateX(0);
}

.nav-menu-inner {
  padding: var(--space-lg) var(--space-md);
  flex: 1;
  overflow-y: auto;
}

.nav-links-list {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.nav-links-list a {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 16px;
  font-size: 1rem;
  font-weight: 400;
  color: var(--c-text-muted);
  border-radius: var(--radius);
  transition:
    color 0.2s,
    background 0.2s,
    padding-left 0.3s;
  letter-spacing: 0.02em;
}

.nav-links-list a:hover,
.nav-links-list a.active {
  color: var(--c-text);
  background: var(--c-accent-dim);
  padding-left: 20px;
}

.nav-links-list a .nav-num {
  font-family: var(--font-display);
  font-size: 0.75rem;
  color: var(--c-accent);
  min-width: 20px;
}

.nav-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(4px);
  z-index: 998;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.4s;
}

.nav-overlay.open {
  opacity: 1;
  pointer-events: all;
}

/* Pre-order floating button */
.preorder-btn {
  position: fixed;
  bottom: var(--space-md);
  right: var(--space-md);
  z-index: 900;
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--c-accent);
  color: #fff;
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 12px 20px;
  border-radius: 100px;
  box-shadow: 0 8px 32px var(--c-accent-glow);
  transition:
    transform 0.25s var(--ease-out),
    box-shadow 0.25s;
  animation: floatBtn 3s ease-in-out infinite;
}

[dir='rtl'] .preorder-btn {
  right: auto;
  left: var(--space-md);
}

.preorder-btn:hover {
  transform: translateY(-2px) scale(1.02);
  box-shadow: 0 12px 40px var(--c-accent-glow);
}

@keyframes floatBtn {
  0%,
  100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-4px);
  }
}

/* Scroll to top button */
.scroll-top {
  position: fixed;
  bottom: var(--space-md);
  left: var(--space-md);
  z-index: 900;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transform: translateY(16px);
  transition:
    opacity 0.3s,
    transform 0.3s var(--ease-out);
  color: var(--c-text-muted);
}

[dir='rtl'] .scroll-top {
  left: auto;
  right: var(--space-md);
}

.scroll-top:hover {
  color: var(--c-accent);
  border-color: var(--c-accent);
}
.scroll-top.visible {
  opacity: 1;
  pointer-events: all;
  transform: translateY(0);
}

/* ── Buttons ──────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  border-radius: var(--radius);
  transition: all 0.3s var(--ease-out);
  position: relative;
  overflow: hidden;
}

.btn::after {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(255, 255, 255, 0.06);
  opacity: 0;
  transition: opacity 0.2s;
}

.btn:hover::after {
  opacity: 1;
}

.btn-primary {
  background: var(--c-accent);
  color: #fff;
  box-shadow: 0 4px 20px var(--c-accent-glow);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 32px var(--c-accent-glow);
}

.btn-outline {
  border: 1px solid var(--c-border);
  color: var(--c-text);
}

.btn-outline:hover {
  border-color: var(--c-accent);
  color: var(--c-accent);
  transform: translateY(-2px);
}

/* ── Scroll Animations ────────────────────── */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition:
    opacity 0.8s var(--ease-out),
    transform 0.8s var(--ease-out);
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal-delay-1 {
  transition-delay: 0.1s;
}
.reveal-delay-2 {
  transition-delay: 0.2s;
}
.reveal-delay-3 {
  transition-delay: 0.3s;
}
.reveal-delay-4 {
  transition-delay: 0.4s;
}

/* ── Divider ──────────────────────────────── */
.divider {
  width: 48px;
  height: 1px;
  background: var(--c-accent);
  margin: var(--space-sm) auto;
  opacity: 0.6;
}

/* ── Footer ───────────────────────────────── */
.footer {
  border-top: 1px solid var(--c-border);
  padding: var(--space-lg) 0 var(--space-md);
  text-align: center;
}

.footer-logo {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: var(--space-sm);
}

.footer-logo span {
  color: var(--c-accent);
}

.footer-links {
  display: flex;
  justify-content: center;
  gap: var(--space-md);
  flex-wrap: wrap;
  margin-bottom: var(--space-md);
}

.footer-links a {
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  color: var(--c-text-muted);
  text-transform: uppercase;
  transition: color 0.2s;
}

.footer-links a:hover {
  color: var(--c-accent);
}

.footer-copy {
  font-size: 0.78rem;
  color: var(--c-text-muted);
  opacity: 0.6;
  text-align: center;
  width: 100%;
  max-width: 100%;
  display: block;
  margin-left: auto;
  margin-right: auto;
}

/* ── Focus Styles ─────────────────────────── */
:focus-visible {
  outline: 2px solid var(--c-accent);
  outline-offset: 3px;
  border-radius: 2px;
}

/* ── Utility ──────────────────────────────── */
.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;
}

/* ── Responsive ───────────────────────────── */
@media (max-width: 768px) {
  :root {
    --space-xl: 5rem;
    --space-lg: 3rem;
  }
  .preorder-btn {
    bottom: 16px;
    right: 16px;
    padding: 10px 16px;
    font-size: 0.72rem;
  }
  [dir='rtl'] .preorder-btn {
    left: 16px;
    right: auto;
  }
  .scroll-top {
    bottom: 16px;
    left: 16px;
  }
  [dir='rtl'] .scroll-top {
    left: auto;
    right: 16px;
  }
}

/* Fix small-screen navbar: logo can overlap lang-btn */
@media (max-width: 480px) {
  .navbar-inner {
    padding: 0 12px;
  }
  .logo-wordmark {
    font-size: 0.95rem;
    letter-spacing: 0.06em;
  }
  .logo-tagline {
    display: none;
  }
  .lang-btn {
    padding: 5px 8px;
    font-size: 0.72rem;
    gap: 3px;
  }
  .lang-btn svg:first-child {
    display: none;
  } /* hide globe icon on very small */
}

/* ── Navbar Logo Image ────────────────────── */
.navbar-logo-img {
  height: 125px;
  width: auto;
  display: block;
  object-fit: contain;
}

.footer-credit {
  color: var(--c-accent);
  font-weight: 500;
}