/* ============================================
   SKY ISLAND — Global Styles
   ============================================ */

*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  /* Prevent subpixel rendering issues on mobile */
  -webkit-tap-highlight-color: transparent;
}

:root {
  --gold: #e8c97a;
  --gold-light: #f5e4a8;
  --cream: #fdf6e3;
  --dark: #0a0806;
  --mist: rgba(255, 255, 255, 0.06);
  --font: 'Outfit', sans-serif;
  --scroll-cushion: 160vh;
  /* extra scroll between panels — higher = slower camera */
}

html {
  font-size: 16px;
  scroll-behavior: auto;
  /* GSAP handles scrolling */
  scrollbar-gutter: stable;
  scrollbar-color: var(--gold) #0c0a08;
  /* Tell browser: vertical scroll is native, no need to wait for JS */
  touch-action: pan-y;
}

body {
  background: #000;
  font-family: var(--font);
  color: var(--cream);
  overflow-x: hidden;
  /* Allows instant native scroll on mobile, no jank! */
  touch-action: pan-y;
}

/* Prevent scrolling/interaction during loading screen */
body.loading {
  overflow: hidden !important;
  height: 100vh !important;
  touch-action: none !important;
}

/* ── Themed scrollbar (SKY ISLAND gold / dark) ── */
::-webkit-scrollbar {
  width: 9px;
}

::-webkit-scrollbar-track {
  background: linear-gradient(180deg,
      #07050a 0%,
      #12100c 45%,
      #1a1510 55%,
      #07050a 100%);
  border-left: 1px solid rgba(232, 201, 122, 0.08);
}

::-webkit-scrollbar-thumb {
  background: linear-gradient(180deg,
      var(--gold-light) 0%,
      var(--gold) 45%,
      #c4a050 100%);
  border-radius: 100px;
  border: 2px solid #0a0806;
  box-shadow:
    0 0 12px rgba(232, 201, 122, 0.35),
    inset 0 1px 0 rgba(255, 255, 255, 0.25);
}

::-webkit-scrollbar-thumb:hover {
  background: linear-gradient(180deg,
      #fff8e0 0%,
      var(--gold-light) 40%,
      var(--gold) 100%);
  box-shadow:
    0 0 18px rgba(232, 201, 122, 0.55),
    inset 0 1px 0 rgba(255, 255, 255, 0.35);
}

::-webkit-scrollbar-thumb:active {
  background: linear-gradient(180deg, var(--gold), #a88640);
}

::-webkit-scrollbar-corner {
  background: #07050a;
}

/* ── WebGL Canvas ── */
#webgl-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  z-index: 0;
  display: block;
  /* Pinatataas ang saturation ng 130% hanggang 150% */
  filter: saturate(1.4) contrast(1);
  /* Forces GPU compositing layer — huge perf win! */
  will-change: transform;
  transform: translateZ(0);
}

/* Opening details */
.site-signature {
  position: fixed;
  top: max(1.5rem, env(safe-area-inset-top));
  left: max(6vw, env(safe-area-inset-left));
  z-index: 10;
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  min-height: 44px;
  color: var(--gold-light);
  font-size: clamp(0.85rem, 1.4vw, 1rem);
  font-weight: 400;
  letter-spacing: 0.08em;
  text-decoration: none;
  text-shadow: 0 2px 12px rgba(0, 0, 0, 0.85);
  transition: color 0.25s ease;
}

.signature-mark { font-size: 1.6rem; color: var(--gold); }
.signature-arrow { font-size: 0.8rem; opacity: 0.65; }
.site-signature:hover { color: #fff; }
.site-signature:focus-visible {
  outline: 1px solid var(--gold);
  outline-offset: 6px;
  border-radius: 2px;
}

.start-prompt {
  position: absolute;
  bottom: max(7vh, calc(env(safe-area-inset-bottom) + 1.5rem));
  left: 50%;
  transform: translateX(-50%);
  width: min(88vw, 360px);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.85rem;
  text-align: center;
  text-shadow: 0 2px 16px rgba(0, 0, 0, 0.9);
}

.start-eyebrow {
  color: var(--gold-light);
  font-size: 0.6rem;
  font-weight: 400;
  letter-spacing: 0.24em;
  text-transform: uppercase;
}

.start-title {
  color: var(--cream);
  font-size: clamp(1.4rem, 3vw, 2rem);
  font-weight: 300;
  letter-spacing: 0.06em;
}

.start-line {
  width: 1px;
  height: 42px;
  margin-top: 0.25rem;
  background: linear-gradient(to bottom, var(--gold-light), transparent);
  transform-origin: top;
  animation: start-drift 2.4s ease-in-out infinite;
}

@keyframes start-drift {
  0%, 100% { transform: scaleY(0.65); opacity: 0.5; }
  50% { transform: scaleY(1); opacity: 1; }
}

body.loading .site-signature,
body.loading .start-prompt { visibility: hidden; }

@media (prefers-reduced-motion: reduce) {
  .start-line { animation: none; }
}

/* ── Loader ── */
#loader {
  position: fixed;
  inset: 0;
  z-index: 9999;
  background: #07050a;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: opacity 0.8s ease, visibility 0.8s ease;
}

#loader.hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.loader-inner {
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.5rem;
}

.loader-logo {
  font-size: clamp(1.8rem, 5vw, 3.5rem);
  font-weight: 900;
  letter-spacing: 0.3em;
  background: linear-gradient(135deg, var(--gold), var(--gold-light), var(--gold));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  text-transform: uppercase;
}

.loader-bar-wrap {
  width: 260px;
  height: 2px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 2px;
  overflow: hidden;
}

.loader-bar {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--gold), var(--gold-light));
  border-radius: 2px;
  transition: width 0.2s ease;
}

.loader-pct {
  font-size: 0.75rem;
  font-weight: 300;
  letter-spacing: 0.2em;
  color: rgba(255, 255, 255, 0.4);
  text-transform: uppercase;
}

/* ── Scroll Container ── */
#scroll-container {
  position: relative;
  z-index: 1;
  pointer-events: none;
  /* canvas receives mouse, panels only show UI */
  /* Critical for mobile: lets browser scroll immediately without JS delay */
  touch-action: pan-y;
}

/* Invisible height between sections — slows scroll-to-camera without touching smoothness */
.scroll-spacer {
  height: var(--scroll-cushion);
  pointer-events: none;
}

/* ── Panels ── */
.panel {
  position: relative;
  width: 100vw;
  height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  pointer-events: none;
  /* Limits browser repaint area to just this panel */
  contain: layout style;
}

/* ── Hero Panel ── */
#panel-hero {
  align-items: flex-end;
  justify-content: flex-start;
  padding: 0 6vw 8vh;
}

.hero-content {
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
  /* Hint browser that opacity will change for GSAP animation */
  will-change: opacity;
}

.hero-title {
  font-size: clamp(3.5rem, 12vw, 10rem);
  font-weight: 900;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  line-height: 0.9;
  background: linear-gradient(160deg, #fff 0%, var(--gold-light) 40%, var(--gold) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  -webkit-text-stroke: 1px black;
  text-shadow: none;
  animation: heroFadeIn 1.5s ease 0.5s both;
}

.hero-title-sup {
  font-size: 0.45em;
  display: block;
  letter-spacing: 0.3em;
}

.hero-sub {
  font-size: clamp(0.75rem, 2vw, 1.1rem);
  font-weight: 300;
  letter-spacing: 0.35em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.55);
  animation: heroFadeIn 1.5s ease 0.9s both;
}

@keyframes heroFadeIn {
  from {
    opacity: 0;
    transform: translateY(30px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ── Scroll Hint ── */
.scroll-hint {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.5rem;
  margin-top: 1.5rem;
  animation: heroFadeIn 1.5s ease 1.3s both;
}

.scroll-hint span {
  font-size: 0.65rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.3);
}

.scroll-arrow {
  width: 1px;
  height: 50px;
  background: linear-gradient(180deg, var(--gold) 0%, transparent 100%);
  animation: arrowPulse 2s ease-in-out infinite;
}

@keyframes arrowPulse {

  0%,
  100% {
    transform: scaleY(1);
    opacity: 0.6;
  }

  50% {
    transform: scaleY(1.15);
    opacity: 1;
  }
}

/* ── Side Content (Discover / Explore) ── */
.side-content {
  position: absolute;
  max-width: 340px;
  display: flex;
  flex-direction: column;
  gap: 1.2rem;
  /* Hint browser that opacity will animate */
  will-change: opacity;
}

.side-content.left {
  left: 6vw;
  bottom: 10vh;
}

.side-content.right {
  right: 6vw;
  bottom: 10vh;
  text-align: right;
}

.label {
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--gold);
  opacity: 0.8;
}

.side-content h2 {
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 700;
  line-height: 1.05;
  background: linear-gradient(135deg, #fff, var(--gold-light));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.side-content p {
  font-size: clamp(0.82rem, 1.5vw, 0.95rem);
  font-weight: 300;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.5);
  max-width: 280px;
}

.frame-hint {
  margin-top: 0.75rem;
  font-size: 0.72rem !important;
  letter-spacing: 0.06em;
  color: rgba(232, 201, 122, 0.55) !important;
  max-width: 300px !important;
}

.side-content.right p {
  margin-left: auto;
}

/* ── Center Content (Enter) ── */
.center-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 1.5rem;
  padding-bottom: 5vh;
}

.center-content h2 {
  font-size: clamp(2.5rem, 7vw, 5.5rem);
  font-weight: 700;
  line-height: 1.05;
  background: linear-gradient(135deg, #fff, var(--gold-light));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ── CTA Button ── */
.cta-btn {
  display: inline-block;
  padding: 1rem 2.8rem;
  border: 1px solid rgba(232, 201, 122, 0.5);
  color: var(--gold-light);
  font-family: var(--font);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  text-decoration: none;
  border-radius: 2px;
  background: rgba(232, 201, 122, 0.08);
  backdrop-filter: blur(8px);
  transition: background 0.4s ease, border-color 0.4s ease, transform 0.3s ease, box-shadow 0.4s ease;
  pointer-events: all;
  cursor: pointer;
}

.cta-btn:hover {
  background: rgba(232, 201, 122, 0.18);
  border-color: var(--gold);
  transform: translateY(-2px);
  box-shadow: 0 12px 40px rgba(232, 201, 122, 0.2);
}

/* ── Vignette overlay (enhances depth) ── */
body::after {
  content: '';
  position: fixed;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background: radial-gradient(ellipse at center, transparent 32%, rgba(0, 0, 0, 0.68) 100%);
}

/* ── Cinematic Flash Overlay ── */
#flash-overlay {
  position: fixed;
  inset: 0;
  background: radial-gradient(circle, #ffffff 25%, #ffebc2 100%);
  z-index: 99999;
  opacity: 0;
  pointer-events: none;
}

@media (max-width: 768px) {
  #panel-hero {
    padding: 0 6vw 10vh;
  }

  .side-content.left,
  .side-content.right {
    left: 6vw;
    right: 6vw;
    bottom: 8vh;
    text-align: left;
    max-width: 100%;
  }

  .side-content.right p {
    margin-left: 0;
  }

}