:root {
  --bg: #0e1110;
  --ink: #e7e2d6;
  --muted: #a39c8e;
  --gold: #c6a15a;
  --gold-ink: #1a160e;
  --line: rgba(198, 161, 90, 0.4);
  --pad: max(20px, env(safe-area-inset-top));
  color-scheme: dark;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  min-height: 100%;
  background: var(--bg);
  color: var(--ink);
  font-family: Satoshi, "Segoe UI", sans-serif;
  font-size: 16px;
  line-height: 1.45;
}

body.is-playing {
  overflow: hidden;
  overscroll-behavior: none;
}

.skip {
  position: absolute;
  left: 12px;
  top: -40px;
  background: var(--ink);
  color: var(--bg);
  padding: 8px 12px;
  z-index: 5;
}

.skip:focus { top: 12px; }

:focus-visible {
  outline: 2px solid var(--ink);
  outline-offset: 3px;
}

#gate {
  min-height: 100vh;
  min-height: 100dvh;
  overflow: auto;
  padding: var(--pad) 20px max(28px, env(safe-area-inset-bottom));
}

.wrap {
  width: min(40rem, 100%);
  margin: 0 auto;
}

h1 {
  margin: 28px 0 0;
  font-family: "Clash Display", Satoshi, sans-serif;
  font-weight: 600;
  font-size: clamp(3.2rem, 12vw, 6rem);
  letter-spacing: -0.04em;
  line-height: 0.9;
}

.sub {
  margin: 10px 0 0;
  font-size: 1.2rem;
  font-weight: 500;
}

.note, .fine {
  color: var(--muted);
  max-width: 38rem;
}

.note { margin: 14px 0 0; }

.row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 22px;
}

button, .drop {
  font: inherit;
  min-height: 48px;
}

button {
  border-radius: 8px;
  padding: 12px 16px;
  cursor: pointer;
}

.primary {
  background: var(--gold);
  color: var(--gold-ink);
  border: 1px solid var(--gold);
  font-weight: 500;
}

.ghost {
  background: transparent;
  color: var(--ink);
  border: 1px solid var(--line);
}

.drop {
  position: relative;
  display: grid;
  place-items: center;
  margin-top: 14px;
  min-height: 132px;
  padding: 22px;
  border: 1px dashed var(--line);
  border-radius: 12px;
  text-align: center;
  color: var(--ink);
}

.drop input {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  cursor: pointer;
}

.drop.hot { border-style: solid; background: rgba(198, 161, 90, 0.08); }

.file-name {
  margin: 12px 0 0;
  font-variant-numeric: tabular-nums;
  word-break: break-word;
}

.check {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 18px;
  min-height: 48px;
  cursor: pointer;
}

.check input {
  width: 22px;
  height: 22px;
  accent-color: var(--gold);
}

#status {
  min-height: 1.4em;
  margin: 12px 0 0;
}

#pads { margin: 8px 0 0; }

details {
  margin-top: 18px;
  border-top: 1px solid var(--line);
  padding-top: 12px;
}

summary {
  cursor: pointer;
  min-height: 44px;
  display: flex;
  align-items: center;
}

table {
  width: 100%;
  border-collapse: collapse;
  margin: 8px 0 0;
}

th, td {
  text-align: left;
  padding: 8px 8px 8px 0;
  border-bottom: 1px solid rgba(198, 161, 90, 0.18);
  vertical-align: top;
}

th { color: var(--muted); font-weight: 500; }

kbd {
  font-family: inherit;
  border: 1px solid var(--line);
  border-radius: 4px;
  padding: 1px 6px;
}

.foot {
  margin-top: 28px;
  color: var(--muted);
  font-size: 0.92rem;
}

.foot a { color: var(--ink); }

#stage {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  height: 100dvh;
  background: #000;
  touch-action: none;
}

#game {
  width: 100%;
  height: 100%;
}

@media (prefers-reduced-motion: reduce) {
  * { scroll-behavior: auto; }
}