/* ========================================
   QuizHub Admin Panel - admin.css
   ======================================== */

@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700;800&display=swap');

:root {
  --bg-primary: #0a0e1a;
  --bg-secondary: #111827;
  --bg-card: #1a2235;
  --bg-hover: #243049;
  --text-primary: #f1f5f9;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --accent: #06d6a0;
  --accent-glow: rgba(6, 214, 160, 0.25);
  --accent-hover: #05c493;
  --danger: #ef4444;
  --danger-glow: rgba(239, 68, 68, 0.2);
  --warning: #f59e0b;
  --correct: #06d6a0;
  --wrong: #ef4444;
  --gold: #fbbf24;
  --silver: #94a3b8;
  --bronze: #d97706;
  --admin-accent: #818cf8;
  --admin-glow: rgba(129, 140, 248, 0.25);
  --border: rgba(148, 163, 184, 0.12);
  --radius: 14px;
  --radius-sm: 8px;
  --shadow: 0 8px 32px rgba(0,0,0,0.4);
  --transition: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { font-size: 16px; }
body {
  font-family: 'Outfit', sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  min-height: 100vh;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

body::before {
  content: '';
  position: fixed;
  inset: 0;
  background: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='0.03'/%3E%3C/svg%3E");
  pointer-events: none;
  z-index: 0;
}

.admin-app {
  position: relative;
  z-index: 1;
  max-width: 1100px;
  margin: 0 auto;
  padding: 1.5rem 1.25rem 3rem;
}

/* Header */
.admin-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 2rem;
}

.admin-header h1 {
  font-size: 1.75rem;
  font-weight: 800;
  background: linear-gradient(135deg, var(--admin-accent) 0%, #a78bfa 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.admin-header .subtitle {
  color: var(--text-secondary);
  font-size: 0.85rem;
}

.status-dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  margin-right: 6px;
}
.status-dot.connected { background: var(--accent); }
.status-dot.disconnected { background: var(--danger); }

/* Cards */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  box-shadow: var(--shadow);
}

.card h3 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 1rem;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.card h3 .badge {
  background: var(--bg-hover);
  border-radius: 999px;
  padding: 0.15rem 0.6rem;
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--text-secondary);
}

/* Grid layout */
.admin-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.admin-grid .full-width { grid-column: 1 / -1; }

/* Admin layout: game area + sidebar */
.admin-layout {
  display: grid;
  grid-template-columns: 1fr 340px;
  gap: 1rem;
  margin-bottom: 0;
}

.game-area .card { margin-bottom: 0; }
.sidebar { display: flex; flex-direction: column; gap: 1rem; }

/* Room badge in header */
.room-badge {
  background: var(--admin-accent);
  color: white;
  font-weight: 700;
  font-size: 0.85rem;
  padding: 0.4rem 1rem;
  border-radius: 999px;
  letter-spacing: 0.1em;
}

/* Room code display */
.room-code-display {
  padding: 1.5rem;
  background: var(--bg-secondary);
  border-radius: var(--radius);
  margin: 1.5rem 0;
}

.room-code-big {
  font-size: 3rem;
  font-weight: 800;
  letter-spacing: 0.3em;
  color: var(--admin-accent);
  font-family: 'Outfit', monospace;
}

/* Add question form */
.add-q-form {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  padding: 1.25rem;
  background: var(--bg-secondary);
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
}

@media (max-width: 900px) {
  .admin-layout { grid-template-columns: 1fr; }
}

/* PIN Screen */
.pin-screen {
  max-width: 400px;
  margin: 15vh auto 0;
  text-align: center;
  animation: fadeUp 0.4s ease;
}

.pin-screen h2 {
  font-size: 1.5rem;
  margin-bottom: 0.35rem;
}

.pin-screen .subtitle {
  color: var(--text-secondary);
  margin-bottom: 1.75rem;
}

/* Inputs & Buttons (shared) */
input, select {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 0.6rem 0.85rem;
  color: var(--text-primary);
  font-family: inherit;
  font-size: 0.9rem;
  outline: none;
  transition: border-color var(--transition);
  width: 100%;
}

input:focus, select:focus {
  border-color: var(--admin-accent);
  box-shadow: 0 0 0 3px var(--admin-glow);
}

input::placeholder { color: var(--text-muted); }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  padding: 0.6rem 1.25rem;
  border: none;
  border-radius: var(--radius-sm);
  font-family: inherit;
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition);
  white-space: nowrap;
}

.btn:active { transform: scale(0.97); }

.btn-primary {
  background: var(--admin-accent);
  color: white;
}
.btn-primary:hover { box-shadow: 0 0 20px var(--admin-glow); }
.btn-primary:disabled { opacity: 0.4; cursor: not-allowed; }

.btn-accent {
  background: var(--accent);
  color: var(--bg-primary);
}
.btn-accent:hover { box-shadow: 0 0 20px var(--accent-glow); }

.btn-danger {
  background: transparent;
  color: var(--danger);
  border: 1px solid var(--danger);
}
.btn-danger:hover { background: var(--danger-glow); }

.btn-secondary {
  background: var(--bg-hover);
  color: var(--text-primary);
  border: 1px solid var(--border);
}
.btn-secondary:hover { border-color: var(--admin-accent); }

.btn-sm { padding: 0.4rem 0.75rem; font-size: 0.78rem; }

.btn-group {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.error-msg {
  color: var(--danger);
  font-size: 0.82rem;
  margin-top: 0.5rem;
  min-height: 1.2em;
}

/* Game Controls */
.game-status {
  display: inline-block;
  padding: 0.2rem 0.65rem;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.game-status.lobby { background: rgba(129,140,248,0.15); color: var(--admin-accent); }
.game-status.question { background: rgba(6,214,160,0.15); color: var(--accent); }
.game-status.finished { background: rgba(251,191,36,0.15); color: var(--gold); }

.control-row {
  display: flex;
  gap: 0.5rem;
  align-items: center;
  flex-wrap: wrap;
  margin-top: 0.75rem;
}

.timer-config {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-top: 0.75rem;
}

.timer-config input {
  width: 70px;
  text-align: center;
}

.timer-config label {
  font-size: 0.82rem;
  color: var(--text-secondary);
}

/* Player List */
.player-table {
  width: 100%;
  border-collapse: collapse;
}

.player-table th {
  text-align: left;
  padding: 0.5rem;
  font-size: 0.75rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  border-bottom: 1px solid var(--border);
}

.player-table td {
  padding: 0.5rem;
  font-size: 0.88rem;
  border-bottom: 1px solid var(--border);
}

.player-table tr:last-child td { border-bottom: none; }

.player-table .kick-btn {
  background: none;
  border: none;
  color: var(--danger);
  cursor: pointer;
  font-size: 0.82rem;
  font-weight: 600;
  padding: 0.2rem 0.5rem;
  border-radius: 4px;
  transition: background var(--transition);
}
.player-table .kick-btn:hover { background: var(--danger-glow); }

.empty-state {
  color: var(--text-muted);
  font-size: 0.85rem;
  text-align: center;
  padding: 1.5rem;
}

/* Question List */
.question-item {
  padding: 0.75rem;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  margin-bottom: 0.5rem;
  transition: all var(--transition);
}

.question-item:hover { border-color: var(--admin-accent); }

.question-item .q-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 0.75rem;
}

.question-item .q-text {
  font-size: 0.9rem;
  font-weight: 500;
  flex: 1;
}

.question-item .q-meta {
  display: flex;
  gap: 0.5rem;
  margin-top: 0.35rem;
}

.question-item .q-category {
  font-size: 0.7rem;
  color: var(--text-muted);
  background: var(--bg-hover);
  padding: 0.1rem 0.5rem;
  border-radius: 999px;
}

.question-item .q-actions {
  display: flex;
  gap: 0.35rem;
}

.question-scroll {
  max-height: 400px;
  overflow-y: auto;
  padding-right: 0.25rem;
}

/* Answer Stats */
.answer-stats {
  display: flex;
  gap: 1rem;
  margin-top: 0.5rem;
}

.stat-box {
  flex: 1;
  text-align: center;
  padding: 0.75rem;
  background: var(--bg-secondary);
  border-radius: var(--radius-sm);
}

.stat-box .stat-value {
  font-size: 1.5rem;
  font-weight: 700;
}

.stat-box .stat-label {
  font-size: 0.72rem;
  color: var(--text-muted);
  text-transform: uppercase;
}

.stat-box.correct-stat .stat-value { color: var(--correct); }
.stat-box.wrong-stat .stat-value { color: var(--wrong); }

/* Leaderboard */
.lb-entry {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.6rem 0.75rem;
  background: var(--bg-secondary);
  border-radius: var(--radius-sm);
  margin-bottom: 0.4rem;
}

.lb-rank {
  font-weight: 700;
  min-width: 2rem;
  text-align: center;
}

.lb-rank.gold { color: var(--gold); }
.lb-rank.silver { color: var(--silver); }
.lb-rank.bronze { color: var(--bronze); }
.lb-name { flex: 1; }
.lb-score { font-weight: 700; color: var(--accent); }

/* Add Question Form */
.add-question-form {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.options-inputs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.5rem;
}

.option-input-wrap {
  position: relative;
}

.option-input-wrap input {
  padding-left: 2rem;
}

.option-input-wrap .opt-label {
  position: absolute;
  left: 0.65rem;
  top: 50%;
  transform: translateY(-50%);
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--text-muted);
}

.form-row {
  display: flex;
  gap: 0.5rem;
}

.form-row select { width: auto; min-width: 120px; }

/* Modal overlay */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.6);
  backdrop-filter: blur(4px);
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
  animation: fadeIn 0.2s;
}

.modal-content {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.75rem;
  width: 90%;
  max-width: 500px;
  box-shadow: var(--shadow);
  animation: fadeUp 0.3s ease;
}

.modal-content h3 { margin-bottom: 1rem; }

/* Animations */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

/* Responsive */
@media (max-width: 768px) {
  .admin-grid {
    grid-template-columns: 1fr;
  }
}