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

:root {
  --primary: #7c3aed;
  --primary-dark: #5b21b6;
  --accent: #a78bfa;
  --accent-light: #ede9fe;
  --success: #10b981;
  --danger: #ef4444;
  --warning: #f59e0b;
  --bg: #0f0a1e;
  --card-bg: #1a1033;
  --card-bg2: #221644;
  --text: #f1f5f9;
  --text-muted: #94a3b8;
  --border: #3b2a6e;
  --border-light: #4c3a8a;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: linear-gradient(135deg, var(--bg) 0%, #1a0a3a 100%);
  color: var(--text);
  min-height: 100vh;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

.screen {
  display: none;
  min-height: 100vh;
  padding: 20px;
  padding-top: 24px;
}
.screen.active { display: block; }

.container {
  max-width: 540px;
  margin: 0 auto;
}

h1 {
  text-align: center;
  font-size: 2rem;
  margin-bottom: 24px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.card {
  background: var(--card-bg);
  border-radius: 16px;
  padding: 20px;
  margin-bottom: 16px;
  border: 1px solid var(--border);
  box-shadow: 0 4px 16px rgba(0,0,0,0.4);
}

/* ===== BUTTONS ===== */
.btn {
  display: inline-block;
  padding: 13px 22px;
  font-size: 1rem;
  font-weight: 600;
  border: none;
  border-radius: 10px;
  cursor: pointer;
  transition: all 0.2s;
  text-align: center;
}
.btn:active { transform: scale(0.97); }

.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: white;
  width: 100%;
}
.btn-primary:hover { background: linear-gradient(135deg, var(--accent), var(--primary)); }

.btn-secondary {
  background: var(--card-bg2);
  border: 1px solid var(--border);
  color: var(--text);
  width: 100%;
}
.btn-secondary:hover { border-color: var(--accent); }

.btn-danger {
  background: var(--danger);
  color: white;
}

.btn-sm {
  padding: 8px 14px;
  font-size: 0.88rem;
}

/* ===== FORM ===== */
.form-group {
  margin-bottom: 16px;
}
.form-group label {
  display: block;
  color: var(--text-muted);
  font-size: 0.88rem;
  font-weight: 500;
  margin-bottom: 6px;
}

input[type="text"],
input[type="number"] {
  width: 100%;
  padding: 11px 14px;
  font-size: 1rem;
  border: 2px solid var(--border);
  border-radius: 8px;
  background: var(--bg);
  color: var(--text);
  transition: border-color 0.2s;
}
input[type="text"]:focus,
input[type="number"]:focus {
  outline: none;
  border-color: var(--primary);
}

/* ===== PLAYER COUNT BUTTONS ===== */
.player-count-buttons {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
  margin-top: 6px;
}
.player-count-btn {
  padding: 16px 8px;
  font-size: 1.3rem;
  font-weight: 700;
  border: 2px solid var(--border);
  border-radius: 10px;
  background: var(--bg);
  color: var(--text);
  cursor: pointer;
  transition: all 0.2s;
}
.player-count-btn:hover { border-color: var(--accent); }
.player-count-btn.active {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  border-color: var(--primary);
  color: white;
}

/* ===== RADIO GROUPS ===== */
.radio-group {
  display: flex;
  gap: 10px;
  margin-top: 6px;
  flex-wrap: wrap;
}
.radio-btn {
  flex: 1;
  min-width: 120px;
  padding: 10px 14px;
  border: 2px solid var(--border);
  border-radius: 8px;
  background: var(--bg);
  color: var(--text);
  cursor: pointer;
  font-size: 0.92rem;
  font-weight: 500;
  text-align: center;
  transition: all 0.2s;
  user-select: none;
}
.radio-btn.active {
  background: var(--primary);
  border-color: var(--primary);
  color: white;
}
.radio-btn:hover:not(.active) { border-color: var(--accent); }

/* ===== SETUP SCREEN ===== */
.setup-screen { }

.player-names-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.player-name-row {
  display: flex;
  align-items: center;
  gap: 8px;
}
.player-name-row label {
  min-width: 72px;
  color: var(--text-muted);
  font-size: 0.88rem;
}
.player-name-row input {
  flex: 1;
}

/* ===== GAMEBAR (game-screen header) ===== */
#game-screen {
  padding: 0;
  display: none;
}
#game-screen.active { display: flex; flex-direction: column; min-height: 100vh; }

.game-content {
  flex: 1;
  padding: 16px;
  overflow-y: auto;
}

/* ===== SPECTATOR BANNER ===== */
.spectator-banner {
  background: linear-gradient(90deg, #1e3a5f, #0f2040);
  border-bottom: 1px solid #2a4a7f;
  padding: 8px 16px;
  font-size: 0.85rem;
  color: #7dd3fc;
  display: flex;
  align-items: center;
  gap: 8px;
}
.spectator-banner.hidden { display: none; }

/* ===== GAME CODE DISPLAY ===== */
.game-code-display {
  font-family: monospace;
  font-size: 1.1rem;
  font-weight: 700;
  letter-spacing: 2px;
  color: var(--accent);
  cursor: pointer;
  padding: 4px 8px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: rgba(124,58,237,0.15);
  transition: background 0.2s;
}
.game-code-display:hover { background: rgba(124,58,237,0.3); }

/* ===== SCORE TABLE ===== */
.score-table-wrap {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  border-radius: 12px;
  border: 1px solid var(--border);
}

.score-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.95rem;
  min-width: 280px;
}

.score-table th {
  background: var(--card-bg2);
  padding: 10px 12px;
  text-align: center;
  color: var(--accent);
  font-size: 0.88rem;
  font-weight: 600;
  white-space: nowrap;
  border-bottom: 2px solid var(--border);
}

.score-table th.row-label {
  text-align: left;
  color: var(--text-muted);
  min-width: 80px;
}

.score-table td {
  padding: 8px 10px;
  text-align: center;
  border-bottom: 1px solid var(--border);
  color: var(--text);
  min-width: 60px;
}

.score-table td.row-label {
  text-align: left;
  color: var(--text-muted);
  font-size: 0.88rem;
  font-weight: 500;
  background: var(--card-bg2);
  border-right: 1px solid var(--border);
}

.score-table td.score-cell {
  cursor: pointer;
  transition: background 0.15s;
  position: relative;
}
.score-table td.score-cell:hover {
  background: rgba(124,58,237,0.2);
  color: var(--accent);
}
.score-table td.score-cell.editing {
  background: rgba(124,58,237,0.35);
  outline: 2px solid var(--primary);
  outline-offset: -2px;
}

.score-table td.total-cell {
  font-weight: 700;
  font-size: 1rem;
  color: var(--accent);
  background: rgba(124,58,237,0.1);
  border-top: 2px solid var(--border);
}

.score-table th.winner-col,
.score-table td.winner-col {
  background: rgba(16,185,129,0.15);
  color: #34d399 !important;
}

.score-table tr.winner-row th,
.score-table tr.winner-row td {
  background: rgba(16,185,129,0.15);
  color: #34d399 !important;
}

.score-table tr.total-row td {
  background: rgba(124,58,237,0.1);
  border-top: 2px solid var(--border);
}

.score-table tr.adaptive-last-row td {
  border-bottom: 2px dashed rgba(124,58,237,0.35);
}
.score-table tr.adaptive-last-row td.score-cell {
  background: rgba(124,58,237,0.04);
}
.adaptive-badge {
  display: inline-block;
  font-size: 0.7rem;
  background: rgba(124,58,237,0.15);
  color: var(--primary);
  border-radius: 4px;
  padding: 1px 6px;
  margin-left: 6px;
  vertical-align: middle;
}

/* ===== CELL INPUT OVERLAY ===== */
.overlay-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.7);
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}
.overlay-backdrop.hidden { display: none; }

.overlay-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 24px;
  width: 100%;
  max-width: 320px;
  box-shadow: 0 20px 60px rgba(0,0,0,0.6);
}

.overlay-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-muted);
  margin-bottom: 14px;
  text-align: center;
}

#cell-input-field {
  width: 100%;
  font-size: 2rem;
  font-weight: 700;
  text-align: center;
  padding: 14px;
  border: 2px solid var(--border);
  border-radius: 10px;
  background: var(--bg);
  color: var(--text);
  margin-bottom: 14px;
}
#cell-input-field:focus {
  outline: none;
  border-color: var(--primary);
}

.overlay-actions {
  display: flex;
  gap: 8px;
}
.overlay-actions .btn {
  flex: 1;
  padding: 11px;
  font-size: 0.92rem;
}

/* ===== CODE OVERLAY ===== */
.code-display-big {
  font-family: monospace;
  font-size: 2.8rem;
  font-weight: 900;
  letter-spacing: 6px;
  color: var(--accent);
  text-align: center;
  margin: 16px 0;
  padding: 16px;
  background: rgba(124,58,237,0.15);
  border-radius: 10px;
  border: 2px dashed var(--border);
}
.code-share-hint {
  text-align: center;
  color: var(--text-muted);
  font-size: 0.88rem;
  margin-bottom: 14px;
}
.code-link {
  text-align: center;
  font-size: 0.8rem;
  color: var(--accent);
  word-break: break-all;
  margin-bottom: 14px;
  padding: 8px;
  background: rgba(124,58,237,0.08);
  border-radius: 8px;
  border: 1px solid var(--border);
}

/* ===== WINNER SCREEN ===== */
#winner-screen .container {
  padding-top: 32px;
  text-align: center;
}
.winner-trophy {
  font-size: 5rem;
  margin: 12px 0;
}
.winner-name {
  font-size: 2.2rem;
  font-weight: 900;
  color: var(--accent);
  margin-bottom: 6px;
}
.winner-subtitle {
  font-size: 1rem;
  color: var(--text-muted);
  margin-bottom: 20px;
}
.winner-scores-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.92rem;
}
.winner-scores-table th {
  background: var(--card-bg2);
  padding: 8px 12px;
  text-align: center;
  color: var(--accent);
  font-weight: 600;
  border-bottom: 2px solid var(--border);
}
.winner-scores-table td {
  padding: 8px 12px;
  text-align: center;
  border-bottom: 1px solid var(--border);
}
.winner-scores-table tr.winner-highlight td {
  background: rgba(16,185,129,0.15);
  color: #34d399;
  font-weight: 700;
}

/* ===== JOIN SCREEN ===== */
.join-screen {}
.join-or {
  text-align: center;
  color: var(--text-muted);
  font-size: 0.88rem;
  margin: 4px 0;
}

/* ===== FEEDBACK MODAL ===== */
.feedback-modal textarea {
  width: 100%;
  min-height: 90px;
  padding: 10px 12px;
  border: 2px solid var(--border);
  border-radius: 8px;
  background: var(--bg);
  color: var(--text);
  font-size: 0.95rem;
  font-family: inherit;
  resize: vertical;
  margin-bottom: 10px;
}
.feedback-modal textarea:focus {
  outline: none;
  border-color: var(--primary);
}

/* ===== BUDDY-GAMEBAR OVERRIDES ===== */
.buddy-gamebar {
  background: var(--card-bg) !important;
  border-bottom: 1px solid var(--border) !important;
}
.buddy-gamebar .btn-danger {
  width: auto;
  padding: 6px 12px;
  font-size: 0.85rem;
}

/* ===== MISC ===== */
.hub-link {
  display: block;
  text-align: center;
  margin-top: 8px;
  padding: 13px 22px;
  background: transparent;
  border: 2px solid rgba(255,255,255,0.12);
  border-radius: 10px;
  color: rgba(255,255,255,0.5);
  font-weight: 700;
  font-size: 0.93rem;
  text-decoration: none;
  transition: border-color 0.2s;
}
.hub-link:hover { border-color: rgba(255,255,255,0.3); color: rgba(255,255,255,0.7); }

.error-msg {
  color: var(--danger);
  font-size: 0.88rem;
  margin-top: 8px;
}
.success-msg {
  color: var(--success);
  font-size: 0.88rem;
  margin-top: 8px;
}

.icon-btn {
  background: none;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 6px 10px;
  cursor: pointer;
  font-size: 1.1rem;
  color: var(--text-muted);
  transition: border-color 0.2s;
}
.icon-btn:hover { border-color: var(--accent); color: var(--accent); }

@media (max-width: 480px) {
  .score-table th, .score-table td { font-size: 0.82rem; padding: 6px 7px; }
  .code-display-big { font-size: 2.2rem; letter-spacing: 4px; }
}