:root {
  --bg: #0b0d12;
  --panel: #141821;
  --text: #f4f6fb;
  --muted: #9aa3b5;
  --accent: #e8c547;
  --line: #2a3140;
  --danger: #ff6b6b;
  --stage: #2a2430;
  --font: "Segoe UI", system-ui, -apple-system, sans-serif;
}

* {
  box-sizing: border-box;
  -webkit-tap-highlight-color: transparent;
}

html,
body {
  margin: 0;
  min-height: 100%;
  height: 100%;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
}

body {
  overscroll-behavior: none;
}

.screen {
  min-height: 100%;
  min-height: 100dvh;
  padding: 1.5rem 1.25rem 2rem;
}

.hidden {
  display: none !important;
}

.brand {
  text-align: center;
  margin-bottom: 1.75rem;
}

.eyebrow {
  margin: 0 0 0.35rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  font-size: 0.72rem;
  color: var(--accent);
}

.brand h1,
.admin-box h1 {
  margin: 0;
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: -0.03em;
}

.hint {
  margin: 0.55rem 0 0;
  color: var(--muted);
  font-size: 0.95rem;
}

.hall {
  display: grid;
  gap: 0.75rem;
  max-width: 24rem;
  margin: 0 auto;
}

.stage {
  display: grid;
  place-items: center;
  min-height: 3.4rem;
  border: 1px dashed #5a4d6a;
  border-radius: 0.85rem;
  background: linear-gradient(180deg, #2d2438, #1a1520);
  color: #c9b8d9;
  letter-spacing: 0.28em;
  font-size: 0.85rem;
  font-weight: 700;
  user-select: none;
  pointer-events: none;
}

.row-btn,
.primary-btn,
.effect-btn,
.ghost-btn {
  appearance: none;
  border: 0;
  cursor: pointer;
  font: inherit;
}

.row-btn {
  min-height: 3.6rem;
  border-radius: 0.85rem;
  background: var(--panel);
  color: var(--text);
  border: 1px solid var(--line);
  font-size: 1.05rem;
  font-weight: 600;
}

.row-btn:active {
  transform: scale(0.98);
  background: #1c2230;
}

.prep-card {
  max-width: 24rem;
  margin: 12vh auto 0;
  padding: 1.5rem;
  border-radius: 1rem;
  background: var(--panel);
  border: 1px solid var(--line);
}

.prep-card h2 {
  margin: 0 0 1rem;
}

.prep-card ol {
  margin: 0;
  padding-left: 1.2rem;
  color: var(--muted);
  line-height: 1.55;
}

.prep-note {
  margin: 1rem 0 1.25rem;
  color: var(--accent);
  font-size: 0.9rem;
}

.primary-btn {
  width: 100%;
  min-height: 3.1rem;
  border-radius: 0.8rem;
  background: var(--accent);
  color: #16120a;
  font-weight: 700;
  font-size: 1rem;
}

.show-screen {
  padding: 0;
  background: #000;
  overflow: hidden;
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
}

.light {
  width: 100%;
  height: 100%;
  background: #000;
  transition: none;
}

.admin-body {
  display: grid;
  place-items: start center;
  padding: 2rem 1rem;
  background:
    radial-gradient(ellipse at top, #1a2030 0%, transparent 55%),
    var(--bg);
}

.admin-box {
  width: min(100%, 26rem);
  padding: 1.5rem;
  border-radius: 1rem;
  background: var(--panel);
  border: 1px solid var(--line);
}

.admin-wide {
  width: min(100%, 36rem);
}

.admin-header {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  align-items: start;
}

.admin-form {
  display: grid;
  gap: 0.65rem;
  margin-top: 1.25rem;
}

.admin-form label {
  color: var(--muted);
  font-size: 0.9rem;
}

.admin-form input {
  min-height: 2.9rem;
  border-radius: 0.7rem;
  border: 1px solid var(--line);
  background: #0d1118;
  color: var(--text);
  padding: 0 0.9rem;
  font-size: 1.1rem;
}

.error {
  color: var(--danger);
  margin: 0.8rem 0 0;
}

.status-line {
  margin: 1.25rem 0;
  color: var(--muted);
}

.status-line strong {
  color: var(--accent);
  text-transform: lowercase;
}

.effect-grid {
  display: grid;
  gap: 0.75rem;
}

.effect-btn {
  text-align: left;
  padding: 1rem 1.1rem;
  border-radius: 0.9rem;
  background: #0d1118;
  border: 1px solid var(--line);
  color: var(--text);
  display: grid;
  gap: 0.25rem;
}

.effect-btn:hover,
.effect-btn:focus-visible {
  border-color: var(--accent);
}

.effect-btn:disabled {
  opacity: 0.55;
}

.effect-title {
  font-weight: 700;
  font-size: 1.05rem;
}

.effect-desc {
  color: var(--muted);
  font-size: 0.88rem;
}

.ghost-btn {
  background: transparent;
  color: var(--muted);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 0.45rem 0.9rem;
  font-size: 0.85rem;
}