:root {
  --bg: #030303;
  --text: #f3f2ef;
  --muted: #adb4bd;
  --accent: #efcea0;
  --border: rgba(255, 255, 255, 0.16);
  --focus: #8fb7d9;
  --mono: "IBM Plex Mono", "JetBrains Mono", monospace;
  --display: "Sora", "Avenir Next", "Segoe UI", sans-serif;
  --display-serif: "Playfair Display", Georgia, serif;
}

* {
  box-sizing: border-box;
}

html,
body {
  width: 100%;
  height: 100%;
  margin: 0;
  padding: 0;
  overflow: hidden;
  background: var(--bg);
  color: var(--text);
  font-family: var(--display);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image: radial-gradient(rgba(255, 255, 255, 0.07) 0.4px, transparent 0.4px);
  background-size: 3px 3px;
  opacity: 0.14;
  z-index: 3;
}

#canvas-container {
  position: fixed;
  inset: 0;
  z-index: 1;
}

.film-grain {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 4;
  opacity: 0.06;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.8' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)'/%3E%3C/svg%3E");
}

.ui-layer {
  position: fixed;
  inset: 0;
  z-index: 2;
  pointer-events: none;
  display: grid;
  grid-template-rows: auto 1fr auto;
  padding: clamp(0.9rem, 2vw, 1.45rem);
}

.mono {
  font-family: var(--mono);
}

.ui-header,
.ui-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
}

.back-link {
  pointer-events: auto;
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: rgba(8, 10, 14, 0.72);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  padding: 0.56rem 0.84rem;
  text-transform: uppercase;
  letter-spacing: 0.09em;
  font-size: 0.66rem;
  color: var(--text);
  text-decoration: none;
  transition: border-color 0.2s ease, background-color 0.2s ease;
}

.back-link:hover {
  border-color: rgba(239, 206, 160, 0.5);
  background: rgba(8, 10, 14, 0.84);
}

.back-link:focus-visible {
  outline: 2px solid var(--focus);
  outline-offset: 2px;
}

.hud-meta,
.hint-meta {
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.13em;
  font-size: 0.62rem;
}

.ui-center {
  align-self: center;
  justify-self: center;
  text-align: center;
  width: min(680px, 100%);
  text-shadow: 0 1px 12px rgba(0, 0, 0, 0.35);
}

.kicker {
  margin: 0;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  font-size: 0.62rem;
  color: var(--accent);
}

.ui-center h1 {
  margin: 0.55rem 0 0;
  font-size: clamp(2rem, 8vw, 5rem);
  line-height: 0.95;
  letter-spacing: -0.025em;
  font-family: var(--display-serif);
  font-style: italic;
  font-weight: 600;
  text-wrap: balance;
}

.subtitle {
  margin: 0.9rem auto 0;
  max-width: 36ch;
  color: var(--muted);
  font-size: clamp(0.92rem, 1.55vw, 1.08rem);
  line-height: 1.55;
}

.hint {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.11em;
  font-size: 0.62rem;
}

.hint-line {
  width: 34px;
  height: 1px;
  background: var(--border);
}

.fallback {
  position: fixed;
  left: 50%;
  bottom: 1.1rem;
  transform: translateX(-50%);
  width: min(95vw, 560px);
  z-index: 5;
  border: 1px solid var(--border);
  border-radius: 14px;
  background: rgba(8, 10, 14, 0.84);
  padding: 0.75rem 0.95rem;
}

.fallback p {
  margin: 0;
  color: var(--muted);
  font-size: 0.7rem;
  line-height: 1.5;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

body.reduced-motion .film-grain {
  opacity: 0.04;
}

body.cover-mode .ui-layer {
  display: none;
}

body.cover-mode .fallback {
  display: none;
}

@media (max-width: 780px) {
  .ui-layer {
    padding: 0.82rem;
  }

  .ui-header,
  .ui-footer {
    align-items: flex-start;
    flex-direction: column;
  }

  .ui-footer {
    gap: 0.42rem;
  }

  .hud-meta,
  .hint-meta {
    text-align: left;
  }

  .ui-center {
    width: min(96vw, 520px);
  }

  .hint {
    line-height: 1.45;
  }
}