:root {
  --dusk: #241419;
  --dusk-deep: #1b0e12;
  --cushion: #4a2533;
  --amber: #f0b35e;
  --brass: #c99a4e;
  --smoke: #f1ddd2;
  --ash: #a8918c;
  --serif: "Caprasimo", Georgia, serif;
  --sans: "Nunito", ui-rounded, system-ui, sans-serif;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  height: 100%;
  background: var(--dusk);
  color: var(--smoke);
  font-family: var(--sans);
  font-weight: 500;
  overflow: hidden;
}

#cam { display: none; }

#stage {
  position: fixed;
  inset: 0;
  width: 100vw;
  height: 100vh;
  object-fit: contain;
  background: var(--dusk-deep);
}

/* ------------------------------------------------------------ start screen */

.lounge {
  position: fixed;
  inset: 0;
  display: grid;
  grid-template-columns: minmax(300px, 500px) minmax(0, 1fr);
  align-items: center;
  gap: clamp(16px, 4vw, 72px);
  padding: clamp(16px, 5vw, 88px);
  overflow-y: auto;
  background:
    radial-gradient(55% 65% at 72% 64%, rgba(240, 179, 94, 0.2), transparent 70%),
    radial-gradient(45% 45% at 4% -4%, rgba(201, 154, 78, 0.16), transparent 70%),
    linear-gradient(180deg, #2d1820 0%, var(--dusk) 55%, var(--dusk-deep) 100%);
}
.lounge.hidden { display: none; }

/* Film grain */
.lounge::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  opacity: 0.09;
  mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='200' height='200'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

.intro { position: relative; z-index: 1; }

h1 {
  margin: 0 0 0.3em;
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(3.2rem, 7.5vw, 5.8rem);
  line-height: 0.92;
  letter-spacing: -0.01em;
  color: var(--smoke);
  text-shadow: 0 0 48px rgba(240, 179, 94, 0.28);
}

.lead {
  margin: 0;
  max-width: 30ch;
  font-size: 1.3rem;
  line-height: 1.45;
}

.moves {
  display: grid;
  gap: 1.1rem;
  margin: 2rem 0 2.25rem;
}
.moves div {
  padding-left: 1rem;
  border-left: 2px solid rgba(201, 154, 78, 0.45);
}
.moves dt {
  font-family: var(--serif);
  font-size: 1.2rem;
  color: var(--amber);
}
.moves dd {
  margin: 0.15rem 0 0;
  max-width: 42ch;
  line-height: 1.5;
  color: var(--ash);
}

#start {
  padding: 0.95rem 2rem;
  font: 800 1.1rem var(--sans);
  color: #2b140c;
  background: linear-gradient(180deg, #f7c97f, #e59c45);
  border: 0;
  border-radius: 999px;
  box-shadow:
    inset 0 1px 0 rgba(255, 236, 200, 0.6),
    0 12px 32px -12px rgba(240, 150, 60, 0.75);
  cursor: pointer;
  transition: transform 0.15s ease, filter 0.15s ease;
}
#start:hover { filter: brightness(1.06); }
#start:active { transform: translateY(1px); }
#start:focus-visible {
  outline: 3px solid var(--amber);
  outline-offset: 4px;
}
#start:disabled { cursor: progress; filter: saturate(0.6) brightness(0.9); }

#status {
  min-height: 1.4em;
  margin: 0.9rem 0 0;
  font-size: 0.95rem;
  color: var(--ash);
}
#status.error { color: #ffa08a; }

.keys {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem 1.2rem;
  margin: 2.25rem 0 0;
  padding: 0;
  list-style: none;
  font-size: 0.85rem;
  color: var(--ash);
}
kbd {
  margin-right: 0.4rem;
  padding: 0.1rem 0.45rem;
  font: 800 0.75rem var(--sans);
  color: var(--smoke);
  background: rgba(241, 221, 210, 0.08);
  border: 1px solid rgba(241, 221, 210, 0.2);
  border-bottom-width: 2px;
  border-radius: 6px;
}

.hearth {
  position: relative;
  height: min(88vh, 900px);
  min-height: 320px;
}
#hero {
  display: block;
  width: 100%;
  height: 100%;
}

@media (max-width: 820px) {
  .lounge {
    grid-template-columns: 1fr;
    align-items: start;
    gap: 8px;
  }
  .hearth {
    order: -1;
    height: 40vh;
    min-height: 260px;
  }
  h1 { font-size: 3rem; }
  .lead { font-size: 1.15rem; }
}