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

:root {
  --transition-speed: 1.2s;
  --font-body: 'DM Sans', sans-serif;
  --font-display: 'Instrument Serif', serif;
  --pill-bg: rgba(0,0,0,0.55);
  --pill-border: rgba(255,255,255,0.12);
  --pill-blur: blur(20px);
  --frame-size: 56px;
  --frame-radius: 20px;
  --frame-speed: 1s;
  --frame-ease: cubic-bezier(0.16, 1, 0.3, 1);
}

html, body {
  width: 100%; height: 100%;
  overflow: hidden;
  background: #0a0a0a;
  cursor: none;
  font-family: var(--font-body);
}

body.ui-visible { cursor: default; }

/* ── Full-screen canvas ── */
#canvas { position: fixed; inset: 0; width: 100%; height: 100%; }

.scene {
  position: absolute; inset: 0;
  opacity: 0;
  transition: opacity var(--transition-speed) ease;
  will-change: opacity;
  z-index: 1;
}
.scene.active { opacity: 1; z-index: 2; }
.scene img { width: 100%; height: 100%; object-fit: cover; display: block; }
.scene iframe { width: 100%; height: 100%; border: none; display: block; }

/* ══════════════════════════════════════════════
   FROSTED GLASS WINDOW FRAME
   Single-element mask-composite approach:
   the element stretches beyond the viewport so
   only the border region (the "frame") is ever
   visible. Animating border-width slides the
   frame inward from all edges simultaneously.
   ══════════════════════════════════════════════ */

.frame-glass {
  position: fixed;
  z-index: 8;
  pointer-events: none;

  /* Extend beyond viewport to hide outer border-radius curves */
  top:    calc(-1 * (var(--frame-size) + var(--frame-radius)));
  left:   calc(-1 * (var(--frame-size) + var(--frame-radius)));
  right:  calc(-1 * (var(--frame-size) + var(--frame-radius)));
  bottom: calc(-1 * (var(--frame-size) + var(--frame-radius)));

  background: rgba(20, 20, 20, 0.35);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);

  /* Initial: border matches offset → transparent hole covers full screen */
  border: calc(var(--frame-size) + var(--frame-radius)) solid transparent;
  border-radius: calc(var(--frame-size) + var(--frame-radius));

  /* Mask punches out the padding-box center, leaving only the border ring */
  -webkit-mask:
    linear-gradient(#fff 0 0) padding-box,
    linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask:
    linear-gradient(#fff 0 0) padding-box,
    linear-gradient(#fff 0 0);
  mask-composite: exclude;

  transition:
    border-width var(--frame-speed) var(--frame-ease),
    border-radius var(--frame-speed) var(--frame-ease);
}

body.ui-visible .frame-glass {
  border-width: calc((var(--frame-size) * 2) + var(--frame-radius));
  border-radius: calc((var(--frame-size) * 2) + (var(--frame-radius) * 2));
}

/* Thin border drawn at the inner window opening */
.frame-window-edge {
  position: fixed;
  inset: 0;
  border-radius: 0;
  border: 1px solid rgba(255, 255, 255, 0.07);
  box-shadow:
    inset 0 0 40px rgba(0, 0, 0, 0.12),
    inset 0 0 4px rgba(255, 255, 255, 0.02);
  pointer-events: none;
  z-index: 9;
  opacity: 0;
  transition:
    inset var(--frame-speed) var(--frame-ease),
    border-radius var(--frame-speed) var(--frame-ease),
    opacity 0.5s ease 0.15s;
}

body.ui-visible .frame-window-edge {
  inset: var(--frame-size);
  border-radius: var(--frame-radius);
  opacity: 1;
}

/* ── UI Overlay ── */
.ui-layer {
  position: fixed; inset: 0; z-index: 10;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.5s ease 0.1s; /* slight delay lets frame lead */
  will-change: opacity;
}

body.ui-visible .ui-layer { opacity: 1; }
body.ui-visible .ui-layer * { pointer-events: auto; }

.ui-layer::before {
  content: '';
  position: absolute; inset: 0;
  background:
    linear-gradient(to top, rgba(0,0,0,0.5) 0%, transparent 18%),
    linear-gradient(to bottom, rgba(0,0,0,0.3) 0%, transparent 12%);
  pointer-events: none;
}

/* ── Credit / Attribution ── */
.credit {
  position: absolute;
  bottom: 14px; left: 16px;
  display: flex; align-items: center; gap: 8px;
  font-size: 12px; font-weight: 300;
  color: rgba(255,255,255,0.75);
  letter-spacing: 0.03em;
  text-decoration: none;
  transition: color 0.3s ease;
}
.credit:hover { color: rgba(255,255,255,1); }
.credit svg { width: 14px; height: 14px; opacity: 0.6; flex-shrink: 0; }

.credit-divider {
  width: 1px; height: 12px;
  background: rgba(255,255,255,0.25);
}

.credit-meta {
  font-size: 11px;
  color: rgba(255,255,255,0.4);
  font-weight: 300;
}

.credit-location {
  font-size: 11px;
  color: rgba(255,255,255,0.35);
  font-weight: 300;
  font-style: italic;
}

/* ── Navigation arrows ── */
.nav-arrow {
  position: absolute; top: 50%; transform: translateY(-50%);
  width: 40px; height: 40px;
  display: flex; align-items: center; justify-content: center;
  background: rgba(255,255,255,0.12);
  backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(255,255,255,0.14);
  border-radius: 50%;
  color: rgba(255,255,255,0.8);
  cursor: pointer;
  transition: all 0.3s ease;
  outline: none;
}
.nav-arrow:hover {
  background: rgba(255,255,255,0.18); color: white;
  transform: translateY(-50%) scale(1.06);
}
.nav-arrow:active { transform: translateY(-50%) scale(0.96); }
.nav-arrow svg { width: 16px; height: 16px; display: block; }
/* Optical centering — chevrons have asymmetric negative space */
.nav-prev svg { transform: translateX(-1px); }
.nav-next svg { transform: translateX(1px); }
.nav-prev { left: 8px; }
.nav-next { right: 8px; }

/* ── Mode toggle ── */
.mode-toggle {
  position: absolute; top: 7px; left: 50%; transform: translateX(-50%);
  display: flex; align-items: center;
  background: var(--pill-bg);
  backdrop-filter: var(--pill-blur); -webkit-backdrop-filter: var(--pill-blur);
  border: 1px solid var(--pill-border);
  border-radius: 28px; padding: 4px;
}

.mode-btn {
  padding: 8px 20px; border-radius: 24px;
  color: rgba(255,255,255,0.45);
  cursor: pointer; transition: all 0.35s ease;
  user-select: none; border: none; background: none;
  font-family: var(--font-body); font-size: 12px;
  font-weight: 400; letter-spacing: 0.04em;
  outline: none; display: flex; align-items: center; gap: 7px;
}
.mode-btn.active { background: rgba(255,255,255,0.12); color: rgba(255,255,255,0.9); }
.mode-btn:hover:not(.active) { color: rgba(255,255,255,0.7); }
.mode-btn svg { width: 13px; height: 13px; opacity: 0.8; }

/* ── Counter ── */
.counter {
  position: absolute; bottom: 16px; right: 16px;
  font-size: 11px; font-weight: 300;
  color: rgba(255,255,255,0.35);
  letter-spacing: 0.08em;
  font-variant-numeric: tabular-nums;
}

/* ── Status message ── */
.status-msg {
  position: fixed; inset: 0;
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  z-index: 5;
  color: rgba(255,255,255,0.5);
  font-size: 14px; font-weight: 300;
  letter-spacing: 0.06em;
  transition: opacity 0.8s ease;
  pointer-events: none;
}
.status-msg.hidden { opacity: 0; }
.status-title {
  font-family: var(--font-display);
  font-size: 28px; color: rgba(255,255,255,0.7);
  margin-bottom: 8px; letter-spacing: 0.01em;
}

/* ── Live indicator ── */
.live-indicator {
  display: none;
  align-items: center; gap: 7px;
  font-size: 11px; font-weight: 400;
  color: rgba(255,255,255,0.6);
  letter-spacing: 0.06em; text-transform: uppercase;
}
.live-indicator.visible { display: flex; }
.live-dot {
  width: 7px; height: 7px; border-radius: 50%;
  background: #e05a4f;
  animation: pulse-live 2s ease infinite;
}
@keyframes pulse-live {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.35; }
}

/* ── Keyboard hint ── */
.keyboard-hint {
  position: absolute; bottom: 17px; left: 50%; transform: translateX(-50%);
  font-size: 10px; color: rgba(255,255,255,0.2);
  letter-spacing: 0.1em; white-space: nowrap;
}
.key-icon {
  display: inline-block; padding: 2px 6px;
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: 3px; font-size: 9px;
  margin: 0 2px; vertical-align: middle;
}

/* ══════════════════════════════════════════════
   TOP-RIGHT GROUP
   ══════════════════════════════════════════════ */

.top-right-group {
  position: absolute;
  top: 7px; right: 12px;
  display: flex; align-items: center;
  gap: 10px;
}

/* ── Info button ── */
.info-btn {
  width: 34px; height: 34px;
  display: flex; align-items: center; justify-content: center;
  background: rgba(255,255,255,0.12);
  backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(255,255,255,0.14);
  border-radius: 50%;
  color: rgba(255,255,255,0.7);
  cursor: pointer; transition: all 0.3s ease; outline: none;
  font-family: var(--font-display);
  font-size: 15px; font-style: italic;
  line-height: 1; padding-top: 1px;
  flex-shrink: 0;
}
.info-btn:hover {
  background: rgba(255,255,255,0.12);
  color: rgba(255,255,255,0.9);
  transform: scale(1.08);
}

/* ══════════════════════════════════════════════
   COLLAPSIBLE AUDIO PLAYER
   ══════════════════════════════════════════════ */

.audio-player {
  display: flex; align-items: center;
  background: var(--pill-bg);
  backdrop-filter: var(--pill-blur); -webkit-backdrop-filter: var(--pill-blur);
  border: 1px solid var(--pill-border);
  border-radius: 28px;
  padding: 4px;
  transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  overflow: hidden;
}

.audio-player.collapsed {
  padding: 0;
  background: rgba(255,255,255,0.06);
}
.audio-player.collapsed:hover { background: rgba(255,255,255,0.12); }

.audio-toggle {
  width: 34px; height: 34px;
  display: flex; align-items: center; justify-content: center;
  background: none; border: none;
  color: rgba(255,255,255,0.5);
  cursor: pointer; outline: none;
  border-radius: 50%;
  transition: all 0.25s ease;
  flex-shrink: 0;
}
.audio-toggle:hover { color: rgba(255,255,255,0.9); }
.audio-toggle.active { color: rgba(255,255,255,0.9); }
.audio-toggle svg { width: 15px; height: 15px; }

.audio-controls {
  display: flex; align-items: center; gap: 2px;
  max-width: 0; opacity: 0; overflow: hidden;
  transition: max-width 0.4s cubic-bezier(0.16, 1, 0.3, 1),
              opacity 0.3s ease 0.05s;
}

.audio-player.expanded .audio-controls {
  max-width: 320px; opacity: 1;
}

.audio-divider {
  width: 1px; height: 16px;
  background: rgba(255,255,255,0.1);
  margin: 0 4px; flex-shrink: 0;
}

.audio-skip-btn {
  width: 26px; height: 26px;
  display: flex; align-items: center; justify-content: center;
  background: none; border: none;
  color: rgba(255,255,255,0.35);
  cursor: pointer; outline: none;
  border-radius: 50%;
  transition: all 0.25s ease;
  flex-shrink: 0;
}
.audio-skip-btn:hover { color: rgba(255,255,255,0.8); }
.audio-skip-btn svg { width: 11px; height: 11px; }

.audio-track-name {
  font-size: 11px; font-weight: 300;
  color: rgba(255,255,255,0.6);
  letter-spacing: 0.03em;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
  max-width: 120px; padding: 0 2px; user-select: none;
}

.audio-volume-slider {
  -webkit-appearance: none; appearance: none;
  width: 56px; height: 3px;
  background: rgba(255,255,255,0.12);
  border-radius: 2px; outline: none; cursor: pointer;
  margin: 0 6px 0 4px; flex-shrink: 0;
}
.audio-volume-slider::-webkit-slider-thumb {
  -webkit-appearance: none; appearance: none;
  width: 11px; height: 11px; border-radius: 50%;
  background: rgba(255,255,255,0.7); cursor: pointer;
  transition: background 0.2s ease;
}
.audio-volume-slider::-moz-range-thumb {
  width: 11px; height: 11px; border-radius: 50%;
  background: rgba(255,255,255,0.7); border: none; cursor: pointer;
}
.audio-volume-slider::-webkit-slider-thumb:hover { background: white; }

/* ══════════════════════════════════════════════
   INFO OVERLAY
   ══════════════════════════════════════════════ */

.info-overlay {
  position: fixed; inset: 0; z-index: 100;
  display: flex; align-items: center; justify-content: center;
  pointer-events: none;
}

.info-overlay.open { pointer-events: auto; }

.info-blur-layer {
  position: absolute; inset: 0;
  background: rgba(0,0,0,0.65);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  opacity: 0;
  transition: opacity 0.5s ease;
  cursor: pointer;
}

.info-overlay.open .info-blur-layer {
  opacity: 1;
}

.info-card {
  position: relative;
  max-width: 480px; width: 90%;
  background: rgba(20,20,20,0.92);
  backdrop-filter: blur(24px); -webkit-backdrop-filter: blur(24px);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 20px;
  padding: 44px 40px 40px;
  color: rgba(255,255,255,0.75);
  opacity: 0;
  transform: translateY(20px) scale(0.96);
  transition: opacity 0.45s ease 0.05s,
              transform 0.5s cubic-bezier(0.16, 1, 0.3, 1) 0.05s;
  pointer-events: none;
}

.info-overlay.open .info-card {
  opacity: 1;
  transform: translateY(0) scale(1);
  pointer-events: auto;
}

.info-card-close {
  position: absolute; top: 16px; right: 16px;
  width: 28px; height: 28px;
  display: flex; align-items: center; justify-content: center;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: 50%;
  color: rgba(255,255,255,0.4);
  cursor: pointer; transition: all 0.25s ease;
  outline: none; font-size: 16px; line-height: 1;
}
.info-card-close:hover {
  background: rgba(255,255,255,0.12);
  color: rgba(255,255,255,0.8);
}

.info-card h2 {
  font-family: var(--font-display);
  font-size: 26px; font-weight: 400;
  color: rgba(255,255,255,0.9);
  margin-bottom: 18px; letter-spacing: 0.01em; line-height: 1.2;
}

.info-card p {
  font-size: 14px; font-weight: 300;
  line-height: 1.7; color: rgba(255,255,255,0.6);
  margin-bottom: 14px; letter-spacing: 0.01em;
}
.info-card p:last-of-type { margin-bottom: 24px; }

.info-card a.info-link {
  display: inline-flex; align-items: center; gap: 6px;
  color: rgba(255,255,255,0.8); text-decoration: none;
  font-size: 13px; font-weight: 400; letter-spacing: 0.03em;
  padding: 10px 20px;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 24px;
  transition: all 0.3s ease;
}
.info-card a.info-link:hover {
  background: rgba(255,255,255,0.12); color: white;
  border-color: rgba(255,255,255,0.18);
}
.info-card a.info-link svg { width: 13px; height: 13px; opacity: 0.6; }

.info-card-divider {
  width: 36px; height: 1px;
  background: rgba(255,255,255,0.08);
  margin: 20px 0;
}

.info-card-footer {
  font-size: 11px; color: rgba(255,255,255,0.3);
  font-weight: 300; letter-spacing: 0.04em;
}

/* ══════════════════════════════════════════════
   MOBILE
   ══════════════════════════════════════════════ */

@media (max-width: 768px) {
  html, body { cursor: default; }

  /* Frame is a desktop-only concept */
  .frame-glass, .frame-window-edge { display: none; }

  /* Restore comfortable positions without the frame to anchor against */
  .mode-toggle { top: 16px; }
  .top-right-group { top: 16px; right: 16px; }
  .nav-prev { left: 12px; }
  .nav-next { right: 12px; }
  .credit { bottom: 16px; left: 16px; }
  .counter { bottom: 16px; right: 16px; }

  /* Keyboard hints are irrelevant on touch */
  .keyboard-hint { display: none; }

  /* ── Mobile audio: decoupled toggle + sliding controls panel ──
     The wrapper is zeroed out so it vanishes from the top-right-group layout.
     The toggle pill is independently fixed at bottom-right — it never moves.
     The controls panel slides in/out via translateY — pure GPU animation,
     no position jumps, no phantom backgrounds. */

  .audio-player,
  .audio-player.collapsed,
  .audio-player.expanded {
    position: fixed;
    top: 0; left: 0;
    width: 0; height: 0;
    padding: 0;
    background: none !important;
    border: none !important;
    backdrop-filter: none !important;
    -webkit-backdrop-filter: none !important;
    overflow: visible;
    transition: none;
    border-radius: 0;
    gap: 0;
  }

  /* Toggle: standalone frosted pill, never moves */
  .audio-toggle {
    position: fixed;
    bottom: 62px; right: 16px;
    width: 40px; height: 40px;
    background: var(--pill-bg);
    backdrop-filter: var(--pill-blur);
    -webkit-backdrop-filter: var(--pill-blur);
    border: 1px solid var(--pill-border);
    border-radius: 50%;
    color: rgba(255,255,255,0.5);
    cursor: pointer;
    z-index: 15;
    transition: color 0.25s ease, background 0.25s ease;
  }

  .audio-toggle.active { color: rgba(255,255,255,0.9); }

  /* Controls: slides up from below viewport */
  .audio-controls {
    position: fixed;
    bottom: 0; left: 0; right: 0;
    max-width: none !important;
    opacity: 1 !important;
    display: flex; align-items: center; gap: 8px;
    padding: 14px 20px 36px;          /* 36px clears iPhone home indicator */
    background: rgba(0, 0, 0, 0.88);
    border-radius: 20px 20px 0 0;
    border: 1px solid rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    overflow: hidden;
    transform: translateY(100%);
    transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    pointer-events: none !important;
  }

  .audio-player.expanded .audio-controls {
    transform: translateY(0);
    pointer-events: auto !important;
  }

  .audio-track-name { flex: 1; max-width: none; text-align: center; }
  .audio-volume-slider { width: 72px; }
}