/* ================================================
   AirPods Max — Luxury Scroll-Driven Experience
   ================================================ */

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

:root {
  /* Colors — warm luxury palette */
  --bg-light: #f7f4f0;
  --bg-dark: #0c0c0c;
  --bg-warm: #efe9e0;
  --accent: #c8a97e;
  --accent-light: #d4bc96;
  --text-on-light: #1a1815;
  --text-on-dark: #ede8e2;
  --text-muted: #8a8279;
  --text-on-dark-muted: #9e9790;

  /* Typography */
  --font-display: 'Outfit', -apple-system, sans-serif;
  --font-body: 'Instrument Serif', Georgia, serif;

  /* Scale */
  --section-pad-x: 5vw;
  --section-pad-y: 8vh;
}

html {
  font-size: 16px;
  scroll-behavior: auto;
}

body {
  font-family: var(--font-display);
  background: var(--bg-light);
  color: var(--text-on-light);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* --- Loader --- */
#loader {
  position: fixed;
  inset: 0;
  z-index: 10000;
  background: var(--bg-dark);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1),
              visibility 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

#loader.loaded {
  opacity: 0;
  visibility: hidden;
}

.loader-brand {
  font-family: var(--font-display);
  font-weight: 200;
  font-size: 1.1rem;
  letter-spacing: 0.35em;
  text-transform: uppercase;
  color: var(--text-on-dark);
  margin-bottom: 3rem;
}

#loader-bar {
  width: 180px;
  height: 1px;
  background: rgba(255, 255, 255, 0.1);
  position: relative;
  overflow: hidden;
}

#loader-bar::after {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  height: 100%;
  width: var(--progress, 0%);
  background: var(--accent);
  transition: width 0.15s ease-out;
}

#loader-percent {
  font-family: var(--font-display);
  font-weight: 300;
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  color: var(--text-on-dark-muted);
  margin-top: 1.5rem;
}

/* --- Header --- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 1.5rem 3.5vw;
  opacity: 0;
  transform: translateY(-100%);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.site-header.visible {
  opacity: 1;
  transform: translateY(0);
}

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

.logo {
  font-family: var(--font-display);
  font-weight: 200;
  font-size: 0.95rem;
  letter-spacing: 0.15em;
  text-decoration: none;
  color: var(--text-on-dark);
}

.logo strong {
  font-weight: 600;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 2.5rem;
}

.nav-links a {
  font-family: var(--font-display);
  font-weight: 300;
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  text-decoration: none;
  color: rgba(237, 232, 226, 0.65);
  transition: color 0.3s ease;
}

.nav-links a:hover {
  color: var(--text-on-dark);
}

.nav-cta {
  padding: 0.55rem 1.4rem;
  border: 1px solid var(--accent) !important;
  color: var(--accent) !important;
  letter-spacing: 0.15em !important;
  transition: background 0.3s ease, color 0.3s ease !important;
}

.nav-cta:hover {
  background: var(--accent) !important;
  color: var(--bg-dark) !important;
}

/* --- Hero --- */
.hero-standalone {
  position: relative;
  width: 100%;
  height: 100vh;
  background: var(--bg-dark);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  z-index: 100;
}

.hero-content {
  text-align: center;
  padding: 0 5vw;
}

.hero-label {
  display: block;
  margin-bottom: 2rem;
}

.hero-heading {
  font-family: var(--font-display);
  font-weight: 200;
  font-size: clamp(4rem, 12vw, 14rem);
  line-height: 0.9;
  letter-spacing: -0.02em;
  color: var(--text-on-dark);
}

.hero-heading .serif {
  font-family: var(--font-body);
  font-style: italic;
  font-weight: 400;
  color: var(--accent);
}

.hero-tagline {
  font-family: var(--font-body);
  font-size: clamp(1rem, 2.2vw, 1.6rem);
  font-weight: 400;
  color: rgba(237, 232, 226, 0.55);
  margin-top: 2.5rem;
  max-width: 500px;
  margin-left: auto;
  margin-right: auto;
  line-height: 1.5;
}

.scroll-indicator {
  position: absolute;
  bottom: 3rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.8rem;
  opacity: 0.4;
}

.scroll-text {
  font-family: var(--font-display);
  font-weight: 300;
  font-size: 0.6rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--text-on-dark);
}

.scroll-arrow {
  color: var(--text-on-dark);
  animation: bounceDown 2.5s ease-in-out infinite;
}

@keyframes bounceDown {
  0%, 80%, 100% { transform: translateY(0); opacity: 1; }
  40% { transform: translateY(8px); opacity: 0.4; }
}

/* --- Canvas --- */
.canvas-wrap {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
  pointer-events: none;
  clip-path: circle(0% at 50% 50%);
  transition: clip-path 0.05s linear;
}

.canvas-wrap canvas {
  width: 100%;
  height: 100%;
  display: block;
}

/* --- Dark Overlay --- */
#dark-overlay {
  position: fixed;
  inset: 0;
  z-index: 2;
  background: var(--bg-dark);
  opacity: 0;
  pointer-events: none;
  will-change: opacity;
}

/* --- Marquee --- */
.marquee-wrap {
  position: fixed;
  left: 0;
  width: 100%;
  z-index: 3;
  pointer-events: none;
  overflow: hidden;
  opacity: 0;
  will-change: transform, opacity;
}

.marquee-wrap:nth-of-type(1) { bottom: 50%; }
.marquee-wrap:nth-of-type(2) { bottom: 42%; }

.marquee-text {
  display: inline-block;
  white-space: nowrap;
  font-family: var(--font-display);
  font-weight: 200;
  font-size: clamp(3rem, 10vw, 12rem);
  letter-spacing: 0.02em;
  color: rgba(237, 232, 226, 0.06);
  text-transform: uppercase;
  padding-right: 2rem;
}

/* --- Scroll Container --- */
#scroll-container {
  position: relative;
  z-index: 10;
  height: 800vh;
}

/* --- Scroll Sections --- */
.scroll-section {
  position: absolute;
  left: 0;
  width: 100%;
  will-change: transform, opacity;
}

.scroll-section .section-inner {
  padding: 0;
}

/* Positioning: midpoint of enter/leave range */
.enter-1 { top: 26%; transform: translateY(-50%); }
.enter-2 { top: 38%; transform: translateY(-50%); }
.enter-3 { top: 50%; transform: translateY(-50%); }
.section-stats { top: 64%; transform: translateY(-50%); }
.enter-4 { top: 78%; transform: translateY(-50%); }
.scroll-section:nth-last-child(2) { top: 88.5%; transform: translateY(-50%); }
.section-cta { top: 96.5%; transform: translateY(-50%); }

/* --- Section Content --- */
.section-content {
  padding: 0 var(--section-pad-x);
}

.section-content .section-inner {
  max-width: 42vw;
}

.align-left {
  padding-left: 5vw;
  padding-right: 55vw;
}

.align-right {
  padding-left: 55vw;
  padding-right: 5vw;
}

.align-right .section-inner {
  margin-left: auto;
}

.section-label {
  display: block;
  font-family: var(--font-display);
  font-weight: 400;
  font-size: 0.65rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 1.8rem;
}

.section-heading {
  font-family: var(--font-display);
  font-weight: 200;
  font-size: clamp(2.2rem, 4.5vw, 5rem);
  line-height: 1.05;
  letter-spacing: -0.01em;
  color: var(--text-on-dark);
  margin-bottom: 1.5rem;
}

.section-body {
  font-family: var(--font-body);
  font-size: clamp(0.95rem, 1.4vw, 1.25rem);
  line-height: 1.65;
  color: rgba(237, 232, 226, 0.55);
  max-width: 38ch;
}

.section-note {
  display: inline-block;
  font-family: var(--font-display);
  font-weight: 300;
  font-size: 0.65rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent);
  margin-top: 2rem;
  padding-top: 1.2rem;
  border-top: 1px solid rgba(200, 169, 126, 0.2);
}

/* --- Stats Section --- */
.section-stats {
  width: 100%;
  padding: 0 8vw;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
}

.stat {
  text-align: center;
}

.stat-number {
  font-family: var(--font-display);
  font-weight: 200;
  font-size: clamp(2.5rem, 4.5vw, 5rem);
  color: var(--text-on-dark);
  line-height: 1;
}

.stat-suffix {
  font-family: var(--font-display);
  font-weight: 300;
  font-size: 1.2rem;
  color: var(--accent);
  margin-left: 0.2em;
  vertical-align: super;
  font-size: 0.45em;
}

.stat-label {
  display: block;
  font-family: var(--font-display);
  font-weight: 300;
  font-size: 0.6rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-on-dark-muted);
  margin-top: 0.8rem;
}

/* --- CTA Section --- */
.section-cta {
  width: 100%;
  text-align: center;
}

.section-cta .section-label {
  display: block;
  text-align: center;
  margin-bottom: 2rem;
}

.cta-heading {
  font-family: var(--font-display);
  font-weight: 200;
  font-size: clamp(2.5rem, 6vw, 7rem);
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--text-on-dark);
  margin-bottom: 3rem;
}

.cta-button {
  display: inline-block;
  font-family: var(--font-display);
  font-weight: 400;
  font-size: 1rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--bg-dark);
  background: var(--accent);
  padding: 1.1rem 3.5rem;
  border-radius: 100px;
  transition: background 0.4s ease, transform 0.3s ease;
}

.cta-button:hover {
  background: var(--accent-light);
  transform: scale(1.03);
}

/* --- Responsive --- */
@media (max-width: 1024px) {
  .align-left { padding-left: 5vw; padding-right: 50vw; }
  .align-right { padding-left: 50vw; padding-right: 5vw; }
  .section-content .section-inner { max-width: 45vw; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 3rem; }
}

@media (max-width: 768px) {
  .nav-links { display: none; }

  .hero-heading { font-size: clamp(3rem, 16vw, 8rem); }

  .align-left,
  .align-right {
    padding-left: 8vw;
    padding-right: 8vw;
  }

  .section-content .section-inner {
    max-width: 100%;
  }

  .section-body {
    color: rgba(237, 232, 226, 0.7);
    text-shadow: 0 1px 30px rgba(0,0,0,0.6);
  }

  .section-heading {
    text-shadow: 0 1px 30px rgba(0,0,0,0.5);
  }

  .section-stats { padding: 0 5vw; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 2.5rem; }

  #scroll-container { height: 550vh; }

  .marquee-text { font-size: clamp(2rem, 14vw, 6rem); }
}

@media (max-width: 480px) {
  .hero-heading { font-size: clamp(2.5rem, 18vw, 6rem); }
  .stats-grid { grid-template-columns: 1fr 1fr; gap: 2rem; }
  .stat-number { font-size: 2rem; }
}