:root {
  --bg: #eeece8;
  --bg-deep: #e4e2dd;
  --ink: #121316;
  --ink-soft: #4a4c50;
  --red: #d81f3a;
  --teal: #0e7d90;
  --teal-bright: #14a3bc;
  --card: rgba(255,255,255,0.86);
  --line: rgba(18,19,22,0.12);
  --font-display: "Michroma", sans-serif;
  --font-mono: "JetBrains Mono", monospace;
  --font-body: "Manrope", sans-serif;
}
* { box-sizing: border-box; }
html, body {
  margin: 0; padding: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-body);
}
#scroll-space { height: 650vh; position: relative; }
#pin {
  position: sticky; top: 0; height: 100vh; width: 100%;
  overflow: hidden;
  background: var(--bg);
}
#frame-canvas { position: absolute; inset: 0; width: 100%; height: 100%; display: block; }

.loading {
  position: fixed; inset: 0; z-index: 50;
  display: flex; align-items: center; justify-content: center; flex-direction: column; gap: 0.8rem;
  background: var(--bg);
  font-family: var(--font-mono); font-size: 0.75rem; letter-spacing: 0.15em;
  color: var(--teal);
  transition: opacity 0.6s ease;
}
.loading .bar { width: 180px; height: 2px; background: var(--line); position: relative; overflow: hidden; }
.loading .bar i { position: absolute; left: 0; top: 0; bottom: 0; width: 0%; background: var(--red); transition: width 0.15s linear; }

.hud { position: fixed; top: 1.4rem; right: 1.6rem; z-index: 10; font-family: var(--font-mono); font-size: 0.66rem; letter-spacing: 0.1em; color: var(--teal); opacity: 0.85; pointer-events: none; }
.hud-dots { position: fixed; top: 1.6rem; left: 1.6rem; z-index: 10; display: flex; gap: 0.4rem; }
.hud-dots span { width: 6px; height: 6px; border-radius: 50%; background: rgba(18,19,22,0.18); transition: background 0.3s ease, transform 0.3s ease; }
.hud-dots span.active { background: var(--red); transform: scale(1.4); }

#markers { position: fixed; inset: 0; z-index: 6; pointer-events: none; }
.marker {
  position: absolute; top: 0; left: 0;
  transform: translate(-50%, -50%);
  opacity: 0;
  display: flex; align-items: center; gap: 0.55rem;
  pointer-events: none; cursor: pointer;
  transition: opacity 0.4s ease;
  padding: 14px;
}
.marker.active { pointer-events: auto; }
.marker .dot {
  width: 11px; height: 11px; border-radius: 50%;
  background: var(--red);
  box-shadow: 0 0 0 5px rgba(216,31,58,0.15), 0 0 10px rgba(216,31,58,0.5);
  animation: pulse 1.8s ease-in-out infinite;
}
.marker .label {
  font-family: var(--font-mono); font-size: 0.7rem; letter-spacing: 0.08em;
  text-transform: uppercase; color: var(--ink);
  background: var(--card);
  padding: 0.3rem 0.65rem;
  border: 1px solid var(--line);
  box-shadow: 0 4px 14px rgba(18,19,22,0.1);
  white-space: nowrap;
}
.marker:hover .label { border-color: var(--red); color: var(--red); }
@keyframes pulse {
  0%, 100% { box-shadow: 0 0 0 5px rgba(216,31,58,0.15), 0 0 10px rgba(216,31,58,0.5); }
  50% { box-shadow: 0 0 0 9px rgba(216,31,58,0.06), 0 0 16px rgba(216,31,58,0.8); }
}

#caption {
  position: fixed; z-index: 5;
  left: 6vw; bottom: 12vh;
  max-width: 30rem;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.5s ease;
}
#caption.visible { opacity: 1; }
#caption.align-right { left: auto; right: 6vw; text-align: right; }
#caption .eyebrow {
  font-family: var(--font-mono); font-size: 0.72rem; letter-spacing: 0.16em;
  text-transform: uppercase; color: var(--red); margin: 0 0 0.6rem;
}
#caption h1, #caption h2 {
  font-family: var(--font-display); font-weight: 400;
  font-size: clamp(1.6rem, 3.2vw, 2.5rem); line-height: 1.4; margin: 0 0 0.6rem;
  text-transform: uppercase; letter-spacing: 0.02em;
  color: var(--ink);
}
#caption h1 span, #caption h2 span { color: var(--teal); }
#caption .sub { font-size: 0.95rem; color: var(--ink-soft); margin: 0; }

.social-list { display: flex; flex-direction: column; gap: 0.7rem; margin-top: 1.1rem; }
.social-item {
  font-family: var(--font-mono); font-size: 1rem; letter-spacing: 0.03em;
  color: var(--ink); text-decoration: none; pointer-events: auto;
  border-bottom: 1px solid var(--line);
  padding-bottom: 0.4rem; display: inline-block;
}
.social-item span.tag { color: var(--red); margin-right: 0.75rem; }
.social-item:hover { color: var(--red); }

#detail-panel {
  position: fixed; z-index: 20;
  right: 2rem; top: 50%;
  transform: translateY(-50%) translateX(2rem);
  width: min(360px, 86vw);
  background: var(--card);
  border: 1px solid var(--line);
  backdrop-filter: blur(8px);
  box-shadow: 0 20px 50px rgba(18,19,22,0.18);
  padding: 1.5rem;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.35s ease, transform 0.35s ease;
  touch-action: pan-y;
}
#detail-panel.open { opacity: 1; pointer-events: auto; transform: translateY(-50%) translateX(0); }
#detail-panel .dp-eyebrow { font-family: var(--font-mono); font-size: 0.68rem; letter-spacing: 0.15em; color: var(--red); text-transform: uppercase; margin: 0 0 0.5rem; }
#detail-panel h3 { font-family: var(--font-display); font-weight: 400; font-size: 1.4rem; margin: 0 0 0.8rem; text-transform: uppercase; line-height: 1.3; color: var(--ink); }
#detail-panel p { font-size: 0.88rem; line-height: 1.55; color: var(--ink-soft); margin: 0 0 1rem; }
#detail-panel .stack { display: flex; flex-wrap: wrap; gap: 0.4rem; margin-bottom: 1.2rem; }
#detail-panel .stack span { font-family: var(--font-mono); font-size: 0.65rem; letter-spacing: 0.05em; border: 1px solid var(--line); padding: 0.2rem 0.5rem; color: var(--ink-soft); }
#detail-panel a.visit { display: inline-block; font-family: var(--font-mono); font-size: 0.7rem; letter-spacing: 0.1em; text-transform: uppercase; color: #fff; background: var(--red); padding: 0.6rem 1rem; text-decoration: none; }
#detail-panel .dp-close { position: absolute; top: 0.8rem; right: 0.9rem; cursor: pointer; font-family: var(--font-mono); opacity: 0.5; font-size: 0.85rem; background: none; border: none; color: var(--ink); }
#detail-panel .dp-close:hover { opacity: 1; }

#scroll-hint {
  position: fixed; z-index: 8; left: 50%; bottom: 2.2rem; transform: translateX(-50%);
  font-family: var(--font-mono); font-size: 0.65rem; letter-spacing: 0.15em;
  color: var(--ink-soft); opacity: 0.6; pointer-events: none;
  display: flex; flex-direction: column; align-items: center; gap: 0.4rem;
  transition: opacity 0.4s ease;
}
#scroll-hint .chevron { animation: bob 1.6s ease-in-out infinite; font-size: 0.9rem; color: var(--red); }
@keyframes bob { 0%,100% { transform: translateY(0); opacity: 0.4; } 50% { transform: translateY(6px); opacity: 0.9; } }

@media (max-width: 700px) {
  #scroll-space { height: 560vh; }
  #detail-panel { right: 1rem; left: 1rem; width: auto; top: auto; bottom: 1.2rem; transform: translateY(1rem); max-height: 55vh; overflow-y: auto; }
  #detail-panel.open { transform: translateY(0); }
  #caption { left: 5vw; right: 5vw; max-width: none; bottom: 15vh; }
  #caption.align-right { text-align: left; right: 5vw; }
  #caption h1, #caption h2 { font-size: clamp(1.25rem, 6.5vw, 1.8rem); }
  #caption .sub { font-size: 0.82rem; }
  .marker .dot { width: 13px; height: 13px; }
  .marker .label { font-size: 0.66rem; padding: 0.28rem 0.5rem; }
  .hud { display: none; }
  #scroll-hint { bottom: 1.3rem; }
  .social-item { font-size: 0.9rem; }
}
@media (max-width: 700px) and (orientation: landscape) {
  #caption { bottom: 8vh; }
  #detail-panel { max-height: 78vh; }
}