* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --bg: #060818;
  --border: rgba(255, 255, 255, 0.12);
  --gold: #ffd966;
  --danger: #ff6b7a;
  --text: #f0f2f8;
  --muted: #a8b0c8;
  --hud-top: 110px;
  --hud-panel-h: 58px;
}

html, body {
  width: 100%;
  height: 100%;
  overflow: hidden;
  background: var(--bg);
  font-family: 'Sarabun', 'Segoe UI', sans-serif;
  color: var(--text);
  -webkit-font-smoothing: antialiased;
}

#app {
  position: relative;
  width: 100vw;
  height: 100vh;
  max-width: calc(100vh * 9 / 16);
  margin: 0 auto;
}

@media (min-aspect-ratio: 9/16) {
  body {
    background: radial-gradient(ellipse at center, #0d1230 0%, #040610 70%);
  }
}

@media (max-aspect-ratio: 9/16) {
  #app {
    max-width: 100vw;
    height: calc(100vw * 16 / 9);
    max-height: 100vh;
  }
}

#game-container {
  position: absolute;
  inset: 0;
  z-index: 1;
}

#game-container canvas {
  display: block;
}

.hud-row {
  position: absolute;
  top: var(--hud-top);
  left: 0;
  right: 0;
  z-index: 30;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 4px;
  padding: 0 6px;
  pointer-events: none;
}

.power-panel,
.leaderboard-panel {
  flex: 0 1 auto;
  width: auto;
  min-width: 72px;
  max-width: 28%;
  padding: 4px 6px;
  background: rgba(0, 0, 0, 0.45);
  border: 1px solid var(--border);
  border-radius: 6px;
  backdrop-filter: blur(4px);
}

.power-panel {
  border-color: rgba(125, 211, 252, 0.25);
}

.lb-title {
  font-size: 0.58rem;
  font-weight: 600;
  color: var(--muted);
  margin-bottom: 2px;
}

#leaderboard {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

#power-leaderboard {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

#leaderboard li,
#power-leaderboard li {
  display: flex;
  align-items: center;
  gap: 3px;
  padding: 2px 3px;
  font-size: 0.62rem;
  line-height: 1.15;
  border-radius: 4px;
  background: rgba(255, 255, 255, 0.04);
}

.lb-rank {
  font-weight: 700;
  color: var(--gold);
  min-width: 11px;
  font-size: 0.58rem;
  flex-shrink: 0;
}

.lb-avatar {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  object-fit: cover;
  border: 1px solid var(--border);
  flex-shrink: 0;
}

.lb-name {
  flex: 1;
  min-width: 0;
  font-weight: 600;
  font-size: 0.6rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  color: var(--text);
}

.lb-kills {
  font-size: 0.58rem;
  font-weight: 700;
  color: var(--gold);
  white-space: nowrap;
  flex-shrink: 0;
}

.lb-power {
  font-size: 0.58rem;
  font-weight: 700;
  color: #7dd3fc;
  white-space: nowrap;
  flex-shrink: 0;
}

.lb-trophy {
  font-size: 0.62rem;
  line-height: 1;
  flex-shrink: 0;
}

.trophy-gold {
  color: #ffd700;
  filter: drop-shadow(0 0 4px #ffd700);
  text-shadow: 0 0 6px #ffb300;
}
.trophy-silver {
  color: #e8e8e8;
  filter: drop-shadow(0 0 4px #ffffff);
  text-shadow: 0 0 5px #c0c0c0;
}
.trophy-bronze {
  color: #cd7f32;
  filter: drop-shadow(0 0 4px #ff8c00);
  text-shadow: 0 0 5px #e67e22;
}

#power-leaderboard .lb-name {
  flex: 1;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

#power-leaderboard .lb-power {
  font-size: 0.58rem;
  font-weight: 700;
  color: #7dd3fc;
  white-space: nowrap;
  flex-shrink: 0;
  font-variant-numeric: tabular-nums;
}

#power-leaderboard li.power-rank-1 {
  box-shadow: inset 0 0 0 1px rgba(255, 215, 0, 0.55), 0 0 8px rgba(255, 215, 0, 0.65);
}
#power-leaderboard li.power-rank-2 {
  box-shadow: inset 0 0 0 1px rgba(224, 224, 224, 0.45), 0 0 7px rgba(224, 224, 224, 0.55);
}
#power-leaderboard li.power-rank-3 {
  box-shadow: inset 0 0 0 1px rgba(205, 127, 50, 0.55), 0 0 7px rgba(255, 140, 0, 0.55);
}

/* ── Round overlay & timer ── */
.round-overlay {
  position: absolute;
  inset: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(4, 6, 16, 0.72);
  backdrop-filter: blur(6px);
}

.round-overlay.hidden {
  display: none;
}

.round-panel {
  position: relative;
  text-align: center;
  padding: 28px 24px;
  max-width: 92%;
  width: 340px;
  max-height: 92vh;
  overflow-y: auto;
  overflow-x: hidden;
  background: rgba(12, 16, 40, 0.95);
  border: 1px solid var(--border);
  border-radius: 16px;
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.45);
}

.settings-btn {
  position: absolute;
  top: 10px;
  right: 10px;
  width: 34px;
  height: 34px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.08);
  color: var(--text);
  cursor: pointer;
  font-size: 1rem;
}

.settings-panel {
  margin: 0;
  padding: 10px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: rgba(0, 0, 0, 0.3);
  text-align: left;
  max-height: 58vh;
  overflow-y: auto;
}

.settings-panel.hidden { display: none; }

.settings-label {
  display: block;
  font-size: 0.78rem;
  color: var(--muted);
  margin-bottom: 8px;
}

.settings-input {
  margin-top: 4px;
  width: 100%;
  padding: 8px 10px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.06);
  color: var(--text);
  font-family: inherit;
}

.settings-tiktok-row {
  display: grid;
  grid-template-columns: 1fr 96px;
  gap: 8px;
  align-items: end;
  margin-bottom: 8px;
}

.settings-connect-btn {
  padding: 8px 10px;
  border-radius: 8px;
  border: 1px solid var(--border);
  font-family: inherit;
  font-weight: 700;
  cursor: pointer;
  background: rgba(125, 211, 252, 0.15);
  color: #cdefff;
}

.settings-section-title {
  margin: 8px 0 6px;
  font-size: 0.8rem;
  color: var(--gold);
  font-weight: 700;
}

.settings-special-list {
  max-height: 28vh;
  overflow-y: auto;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 8px;
  padding: 6px;
}

.settings-special-item {
  display: grid;
  grid-template-columns: 1fr 90px;
  gap: 8px;
  align-items: center;
  margin-bottom: 6px;
}

.settings-actions {
  margin-top: 10px;
  display: flex;
  gap: 8px;
}

.settings-save-btn,
.settings-cancel-btn {
  flex: 1;
  padding: 8px 10px;
  border-radius: 8px;
  border: 1px solid var(--border);
  font-family: inherit;
  font-weight: 600;
  cursor: pointer;
}

.settings-save-btn {
  background: linear-gradient(135deg, #ffd966 0%, #ffb347 100%);
  color: #0a0e27;
  border: none;
}

.settings-cancel-btn {
  background: rgba(255, 255, 255, 0.06);
  color: var(--text);
}

.settings-status {
  margin-top: 8px;
  min-height: 16px;
  font-size: 0.72rem;
  color: var(--muted);
}

.round-title {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--gold);
  margin-bottom: 8px;
}

.round-subtitle {
  font-size: 0.85rem;
  color: var(--muted);
  margin-bottom: 20px;
  line-height: 1.45;
}

.round-start-btn {
  display: inline-block;
  padding: 12px 32px;
  font-family: inherit;
  font-size: 1.05rem;
  font-weight: 700;
  color: #0a0e27;
  background: linear-gradient(135deg, #ffd966 0%, #ffb347 100%);
  border: none;
  border-radius: 999px;
  cursor: pointer;
  box-shadow: 0 4px 20px rgba(255, 217, 102, 0.35);
  transition: transform 0.15s, box-shadow 0.15s;
}

.round-start-btn:hover {
  transform: scale(1.04);
  box-shadow: 0 6px 28px rgba(255, 217, 102, 0.5);
}

.round-start-btn:active {
  transform: scale(0.98);
}

.round-rankings {
  list-style: none;
  text-align: left;
  margin: 10px 0 20px;
  max-height: 32vh;
  overflow-y: auto;
}

.round-rankings li {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 10px;
  margin-bottom: 4px;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.05);
  font-size: 0.82rem;
}

.round-rankings li.rank-1 { background: rgba(255, 217, 102, 0.12); border: 1px solid rgba(255, 217, 102, 0.25); }
.round-rankings li.rank-2 { background: rgba(192, 192, 192, 0.08); }
.round-rankings li.rank-3 { background: rgba(205, 127, 50, 0.1); }

.round-rankings .rr-rank {
  font-weight: 700;
  color: var(--gold);
  min-width: 22px;
}

.round-rankings .rr-avatar {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  object-fit: cover;
}

.round-rankings .rr-info { flex: 1; min-width: 0; }
.round-rankings .rr-name { font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.round-rankings .rr-stats { font-size: 0.72rem; color: var(--muted); }

.round-timer-hud {
  position: absolute;
  top: var(--hud-top);
  left: 50%;
  transform: translateX(-50%);
  z-index: 31;
  pointer-events: none;
  padding: 4px 14px;
  font-size: 0.95rem;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  color: var(--gold);
  background: rgba(0, 0, 0, 0.55);
  border: 1px solid rgba(255, 217, 102, 0.35);
  border-radius: 999px;
  backdrop-filter: blur(4px);
}

.round-timer-hud.hidden { display: none; }
.round-timer-hud.urgent {
  color: #ff6b7a;
  border-color: rgba(255, 107, 122, 0.5);
  animation: timerPulse 1s ease infinite;
}

@keyframes timerPulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.65; }
}