/* ========================================
   DESIGN TOKENS & ROOT STYLES
   ======================================== */
:root {
  --bg:           #08080a;
  --bg-subtle:    #111116;
  --surface:      rgba(18, 18, 24, 0.78);
  --surface-solid:#14141c;
  --border:       rgba(212, 160, 64, 0.12);
  --border-glow:  rgba(212, 160, 64, 0.35);
  --text:         #f0ece1;
  --text-muted:   #928d82;
  --text-dim:     #524d45;
  --amber:        #d4a040;
  --amber-bright: #f3c267;
  --amber-glow:   rgba(212, 160, 64, 0.2);
  --amber-pulse:  rgba(212, 160, 64, 0.08);
  --green:        #4ade80;

  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'Space Mono', monospace;

  --ease-out:  cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in-out: cubic-bezier(0.45, 0, 0.55, 1);
}

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

html {
  font-size: 16px;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  overflow-x: hidden;
  background: var(--bg);
  touch-action: manipulation;
}

::selection {
  background: var(--amber);
  color: var(--bg);
}

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

/* Film Grain Overlay */
.grain {
  position: fixed;
  inset: 0;
  z-index: 1000;
  pointer-events: none;
  opacity: 0.03;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  background-repeat: repeat;
  transform: translateZ(0);
}

/* Cursor Glow (desktop mouse only) */
.cursor-glow {
  position: fixed;
  width: 500px;
  height: 500px;
  border-radius: 50%;
  background: radial-gradient(circle, var(--amber-pulse) 0%, transparent 70%);
  pointer-events: none;
  z-index: 1;
  transform: translate(-50%, -50%);
  opacity: 0;
  transition: opacity 0.5s ease;
}
body:hover .cursor-glow { opacity: 1; }
@media (max-width: 768px), (pointer: coarse) {
  .cursor-glow { display: none; }
}

/* ========================================
   SCROLL STAGE (450vh tall for smooth scrubbing)
   ======================================== */
.scroll-stage {
  position: relative;
  height: 450vh;
}

/* Sticky Viewport (100vh locked with GPU acceleration) */
.sticky-viewport {
  position: sticky;
  top: 0;
  width: 100vw;
  height: 100vh;
  height: 100dvh;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  transform: translateZ(0);
  will-change: transform;
}

/* ========================================
   VIDEO WRAPPER
   Starts full page, slides left on scroll progress
   ======================================== */
.video-wrapper {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 2;
  overflow: hidden;
  transform: translateZ(0);
  will-change: transform, width, height, border-radius;
  transition: transform 0.45s var(--ease-out), border-radius 0.45s var(--ease-out), width 0.45s var(--ease-out), box-shadow 0.45s var(--ease-out);
  transform-origin: center left;
  border: 0px solid transparent;
}

.video-wrapper video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transform: translateZ(0);
}

.vignette {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at center, transparent 40%, rgba(0,0,0,0.7) 100%),
    linear-gradient(to top, rgba(0,0,0,0.5) 0%, transparent 35%);
  pointer-events: none;
}

/* Video Shifted State (Applied via JS when scroll approaches end) */
.sticky-viewport.shifted .video-wrapper {
  transform: translateX(4vw) scale(0.9) translateZ(0);
  width: 46vw;
  height: 84vh;
  top: 8vh;
  left: 0;
  border-radius: 24px;
  border: 1px solid var(--border-glow);
  box-shadow: 0 20px 60px rgba(0,0,0,0.8), 0 0 30px var(--amber-glow);
}

/* Overlay Layer (Greeting, Name, Tagline) */
.overlay-layer {
  position: absolute;
  inset: 0;
  z-index: 5;
  pointer-events: none;
  display: flex;
  align-items: center;
  justify-content: center;
  transform: translateZ(0);
}

.scroll-text {
  position: absolute;
  text-align: center;
  opacity: 0;
  transform: translateY(24px) translateZ(0);
  will-change: opacity, transform;
  transition: opacity 0.5s ease, transform 0.5s var(--ease-out);
}

.scroll-text.visible {
  opacity: 1;
  transform: translateY(0) translateZ(0);
}

.scroll-text.exiting {
  opacity: 0;
  transform: translateY(-24px) translateZ(0);
}

/* Greeting */
.greeting-text {
  top: 36%;
}
.greeting-text span {
  font-family: var(--font-mono);
  font-size: clamp(0.9rem, 2vw, 1.2rem);
  color: var(--amber);
  letter-spacing: 0.2em;
  text-shadow: 0 0 20px var(--amber-glow);
}

/* Name */
.name-text {
  top: 44%;
  display: flex;
  flex-direction: column;
}
.name-line {
  font-size: clamp(3.2rem, 10vw, 7.5rem);
  font-weight: 700;
  letter-spacing: -0.04em;
  line-height: 0.95;
  color: var(--text);
  text-shadow: 0 6px 40px rgba(0,0,0,0.8), 0 0 60px rgba(0,0,0,0.6);
}

/* Tagline */
.tagline-text {
  top: 64%;
}
.tagline-text span {
  font-family: var(--font-mono);
  font-size: clamp(0.85rem, 1.8vw, 1.1rem);
  color: var(--text-muted);
  letter-spacing: 0.08em;
  text-shadow: 0 4px 20px rgba(0,0,0,0.9);
}

/* ========================================
   DETAILS SIDE CONTAINER (Right half)
   ======================================== */
.details-side-container {
  position: absolute;
  right: 4vw;
  top: 8vh;
  width: 44vw;
  height: 84vh;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transform: translateX(40px) translateZ(0);
  will-change: opacity, transform;
  pointer-events: none;
  transition: opacity 0.5s ease, transform 0.5s var(--ease-out);
}

.sticky-viewport.shifted .details-side-container {
  opacity: 1;
  transform: translateX(0) translateZ(0);
  pointer-events: auto;
}

.details-card {
  width: 100%;
  max-height: 100%;
  overflow-y: auto;
  background: var(--surface);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--border);
  border-radius: 24px;
  padding: 36px 32px;
  display: flex;
  flex-direction: column;
  gap: 20px;
  box-shadow: 0 30px 80px rgba(0,0,0,0.6), inset 0 1px 1px rgba(255,255,255,0.05);
}

/* Card scrollbar styling */
.details-card::-webkit-scrollbar { width: 4px; }
.details-card::-webkit-scrollbar-track { background: transparent; }
.details-card::-webkit-scrollbar-thumb { background: var(--text-dim); border-radius: 2px; }

.card-header {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.card-badge {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--amber);
}

.card-title {
  font-size: clamp(2rem, 3.5vw, 2.8rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.1;
  color: var(--text);
}

.card-subtitle {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-muted);
  letter-spacing: 0.03em;
}

.card-divider {
  border: none;
  height: 1px;
  background: linear-gradient(to right, var(--border-glow), transparent);
}

.card-bio {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.lead-bio {
  font-size: 1.02rem;
  line-height: 1.65;
  font-weight: 300;
  color: var(--text);
}

.lead-bio em {
  font-style: normal;
  color: var(--amber-bright);
  font-weight: 500;
}

.sub-bio {
  font-size: 0.86rem;
  line-height: 1.7;
  color: var(--text-muted);
  font-weight: 300;
}

/* Highlight metrics */
.card-highlights {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  background: rgba(0, 0, 0, 0.3);
  padding: 16px;
  border-radius: 14px;
  border: 1px solid rgba(255, 185, 50, 0.06);
}

.highlight-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 4px;
}

.highlight-val {
  font-family: var(--font-mono);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--amber);
}

.highlight-lbl {
  font-size: 0.68rem;
  color: var(--text-muted);
}

/* Card Links */
.card-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.social-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 18px;
  border-radius: 100px;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.03);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-muted);
  transition: all 0.25s var(--ease-out);
}

.social-pill svg {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
}

.social-pill:hover {
  color: var(--amber-bright);
  border-color: var(--border-glow);
  background: rgba(212, 160, 64, 0.08);
  transform: translateY(-2px);
  box-shadow: 0 4px 20px var(--amber-glow);
}

.social-pill.highlight {
  background: rgba(212, 160, 64, 0.12);
  border-color: var(--border-glow);
  color: var(--amber-bright);
}

.social-pill.highlight:hover {
  background: var(--amber);
  color: var(--bg);
}

/* Card footer */
.card-footer {
  margin-top: 4px;
}

.status-indicator {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-muted);
}

.status-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 8px rgba(74, 222, 128, 0.5);
  animation: pulseGreen 2s infinite ease-in-out;
}

@keyframes pulseGreen {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(0.85); }
}

/* ==========================================
   SCROLL PROGRESS BAR & HINT
   ========================================== */
.scroll-progress-container {
  position: absolute;
  right: 20px;
  top: 50%;
  transform: translateY(-50%) translateZ(0);
  width: 3px;
  height: 140px;
  background: rgba(255, 255, 255, 0.08);
  border-radius: 2px;
  z-index: 20;
  overflow: hidden;
}

.scroll-progress-fill {
  width: 100%;
  height: 0%;
  background: var(--amber);
  box-shadow: 0 0 10px var(--amber-glow);
}

.scroll-hint {
  position: absolute;
  bottom: 28px;
  left: 50%;
  transform: translateX(-50%) translateZ(0);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  z-index: 20;
  opacity: 1;
  transition: opacity 0.4s ease;
}

.scroll-hint.hidden {
  opacity: 0;
  pointer-events: none;
}

.mouse-icon {
  width: 20px;
  height: 30px;
  border: 1.5px solid var(--text-dim);
  border-radius: 10px;
  display: flex;
  justify-content: center;
  padding-top: 6px;
}

.mouse-wheel {
  width: 3px;
  height: 6px;
  border-radius: 2px;
  background: var(--amber);
  animation: scrollWheel 2s infinite ease-in-out;
}

.hint-text {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--text-dim);
}

@keyframes scrollWheel {
  0%, 100% { transform: translateY(0); opacity: 1; }
  50% { transform: translateY(6px); opacity: 0.2; }
}

/* ========================================
   MOBILE OPTIMIZATIONS (Max-width 900px & Touch)
   ======================================== */
@media (max-width: 900px) {
  .scroll-stage {
    height: 380vh; /* Slightly shorter scroll height for snappy mobile scroll */
  }

  .sticky-viewport.shifted .video-wrapper {
    width: 92vw;
    height: 36vh;
    top: 3vh;
    left: 4vw;
    transform: translateZ(0);
    border-radius: 18px;
  }

  .details-side-container {
    right: 4vw;
    top: 41vh;
    width: 92vw;
    height: 55vh;
    transform: translateY(24px) translateZ(0);
  }

  .sticky-viewport.shifted .details-side-container {
    transform: translateY(0) translateZ(0);
  }

  .details-card {
    padding: 22px 18px;
    gap: 14px;
    /* Lower blur cost for mobile GPU performance */
    background: rgba(18, 18, 24, 0.93);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-radius: 18px;
  }

  .card-title {
    font-size: 1.75rem;
  }

  .card-highlights {
    gap: 6px;
    padding: 10px 8px;
  }

  .highlight-val {
    font-size: 0.95rem;
  }

  .social-pill {
    padding: 8px 14px;
    font-size: 0.72rem;
  }
}

@media (max-width: 480px) {
  .name-line {
    font-size: 2.5rem;
  }

  .scroll-progress-container {
    right: 8px;
    height: 100px;
  }

  .details-card {
    padding: 18px 14px;
  }
}

/* Reduced Motion Override */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}