:root {
  color-scheme: dark;
  --bg: #0f1020;
  --card: #171931;
  --text: #f1f3ff;
  --muted: #a9afd0;
  --primary: #4f7cff;
  --danger: #f05d5e;
  --ok: #41d37d;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: Inter, Segoe UI, Roboto, Arial, sans-serif;
  color: var(--text);
  background: radial-gradient(circle at top right, #232650, var(--bg) 60%);
}

.app {
  width: min(920px, 92vw);
  margin: 36px auto 64px;
}

.app-header h1 {
  margin: 0;
  font-size: clamp(1.8rem, 3vw, 2.6rem);
}

.app-header p {
  color: var(--muted);
}

.credit {
  margin: 6px 0 2px;
  font-weight: 700;
  color: #d8deff !important;
}

.sound-btn {
  margin-top: 8px;
}

.card {
  margin-top: 16px;
  background: color-mix(in oklab, var(--card) 94%, black);
  border: 1px solid #2a2c53;
  border-radius: 16px;
  padding: 16px;
}

.sub-card {
  margin-top: 20px;
  padding: 14px;
}

.button-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.btn {
  border: 1px solid #3b3f72;
  border-radius: 10px;
  background: #232750;
  color: var(--text);
  padding: 10px 14px;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
}

.btn:hover {
  filter: brightness(1.08);
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.btn-primary {
  background: var(--primary);
  border-color: #7293ff;
}

.btn-danger {
  background: var(--danger);
  border-color: #ff8f90;
}

.field {
  display: grid;
  gap: 6px;
  margin-bottom: 12px;
}

.field span {
  color: var(--muted);
  font-size: 0.9rem;
}

.field input {
  width: 100%;
  background: #10132b;
  color: var(--text);
  border: 1px solid #3a3f72;
  border-radius: 10px;
  padding: 10px;
  font-size: 1rem;
}

.room-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
}

.role-badge {
  border-radius: 999px;
  padding: 5px 10px;
  background: #292f60;
  border: 1px solid #3f4a99;
  color: #d8deff;
  font-size: 0.85rem;
  font-weight: 700;
}

.status {
  margin: 12px 0;
  color: #ced5ff;
}

.countdown {
  width: 100px;
  aspect-ratio: 1;
  border-radius: 50%;
  background: linear-gradient(135deg, #232750, #1a1d45);
  border: 3px solid #5866c9;
  display: grid;
  place-items: center;
  font-size: 2.4rem;
  font-weight: 900;
  margin-bottom: 16px;
  will-change: transform, opacity;
  box-shadow: 0 0 24px rgba(88, 102, 201, 0.4);
}

.arena {
  margin-top: 6px;
  height: 320px;
  border: 2px dashed #3d3f68;
  border-radius: 14px;
  position: relative;
  overflow: hidden;
  background: linear-gradient(165deg, #151733, #101125);
}

.bell-btn {
  position: absolute;
  width: 72px;
  height: 72px;
  border-radius: 50%;
  border: 1px solid #ffd877;
  background: #ffcf5a;
  font-size: 2rem;
  cursor: pointer;
  transition: transform 0.08s ease;
}

.bell-btn:hover {
  transform: scale(1.04);
}

.player-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 8px;
}

.player-item {
  padding: 9px 12px;
  border-radius: 10px;
  border: 1px solid #313660;
  background: #171a38;
  color: #e4e8ff;
  font-weight: 600;
}

.player-item.winner {
  border-color: #7ceaab;
  background: color-mix(in oklab, var(--ok) 18%, #111527);
}

.hidden {
  display: none !important;
}

.modal {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  display: grid;
  place-items: center;
  z-index: 20;
}

.modal-card {
  width: min(420px, 92vw);
  border-radius: 14px;
  border: 1px solid #3e4aa0;
  background: #171b3b;
  padding: 20px;
}

.modal-card h3 {
  margin-top: 0;
}