/* ════════════════════════════════════════════════════════
   Blockade 3D — Game & Dashboard Styles
   ════════════════════════════════════════════════════════ */

/* ─── Shared Variables ─────────────────────────────────── */
:root {
  --blk-red: #ef4444;
  --blk-blue: #3b82f6;
  --blk-green: #22c55e;
  --blk-purple: #a855f7;
  --blk-gold: #f59e0b;
  --blk-bg: #020617;
  --blk-card: rgba(15, 23, 42, 0.85);
  --blk-border: rgba(148, 163, 184, 0.15);
  --blk-text: #f8fafc;
  --blk-dim: #94a3b8;
  --blk-gap: 3px;
}

/* ─── Game Page Layout ─────────────────────────────────── */
.blockade-game-body {
  margin: 0;
  padding: 0;
  width: 100vw;
  height: 100vh;
  overflow: hidden;
  background: radial-gradient(ellipse at 30% 20%, #0f172a 0%, var(--blk-bg) 100%);
  color: var(--blk-text);
  font-family: 'Outfit', 'Inter', sans-serif;
  display: flex;
  flex-direction: column;
}

/* ─── Top HUD ──────────────────────────────────────────── */
.blk-hud {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 20px;
  background: linear-gradient(180deg, rgba(15,23,42,0.95) 0%, rgba(15,23,42,0.7) 100%);
  border-bottom: 1px solid var(--blk-border);
  z-index: 20;
  min-height: 60px;
  gap: 12px;
  flex-shrink: 0;
}

.blk-hud-player {
  display: flex;
  align-items: center;
  gap: 10px;
  flex: 1;
  min-width: 0;
}

.blk-hud-player.right {
  flex-direction: row-reverse;
  text-align: right;
}

.blk-hud-avatar {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  font-weight: 900;
  color: white;
  flex-shrink: 0;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.4);
  position: relative;
}

.blk-hud-avatar::after {
  content: '';
  position: absolute;
  inset: -3px;
  border-radius: 15px;
  border: 2px solid currentColor;
  opacity: 0.4;
}

.blk-hud-avatar.active-turn::after {
  opacity: 1;
  animation: blk-pulse 1.5s ease-in-out infinite;
}

@keyframes blk-pulse {
  0%, 100% { opacity: 0.4; box-shadow: 0 0 0 0 currentColor; }
  50% { opacity: 1; box-shadow: 0 0 15px 3px currentColor; }
}

.blk-hud-info {
  min-width: 0;
}

.blk-hud-name {
  font-size: 0.85rem;
  font-weight: 700;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.blk-hud-stats {
  display: flex;
  gap: 10px;
  margin-top: 2px;
  font-size: 0.72rem;
  color: var(--blk-dim);
}

.blk-hud-stats span {
  display: flex;
  align-items: center;
  gap: 3px;
}

.blk-hud-center {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  flex-shrink: 0;
}

.blk-hud-title {
  font-size: 0.75rem;
  color: var(--blk-dim);
  white-space: nowrap;
  max-width: 200px;
  overflow: hidden;
  text-overflow: ellipsis;
}

.blk-hud-join-code {
  font-size: 1rem;
  font-weight: 900;
  letter-spacing: 4px;
  color: var(--blk-gold);
  background: rgba(245, 158, 11, 0.1);
  padding: 2px 12px;
  border-radius: 8px;
  border: 1px solid rgba(245, 158, 11, 0.3);
}

.blk-hud-turn {
  font-size: 0.7rem;
  font-weight: 700;
  padding: 2px 10px;
  border-radius: 20px;
  text-transform: uppercase;
  letter-spacing: 1px;
}

/* ─── Board Area (FLAT, fills remaining space) ─────────── */
.blk-stage {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
  padding: 8px;
}

.blk-board-container {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 100%;
}

.blk-board {
  display: grid;
  grid-template-columns: repeat(9, 1fr);
  grid-template-rows: repeat(9, 1fr);
  gap: var(--blk-gap);
  /* FLAT — no 3D rotation */
  position: relative;
  aspect-ratio: 1 / 1;
  max-height: 100%;
  max-width: 100%;
  /* use whichever is smaller so it stays square */
  height: min(calc(100vh - 90px), calc(100vw - 16px));
  width: min(calc(100vh - 90px), calc(100vw - 16px));
}

.blk-cell {
  width: 100%;
  height: 100%;
  background: linear-gradient(145deg, #1e293b 0%, #0f172a 100%);
  border-radius: 4px;
  border: 1px solid rgba(148, 163, 184, 0.1);
  position: relative;
  cursor: pointer;
  transition: all 0.15s ease;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.3), inset 0 1px 0 rgba(255, 255, 255, 0.05);
}

.blk-cell:hover {
  border-color: rgba(99, 102, 241, 0.4);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.4), inset 0 1px 0 rgba(255, 255, 255, 0.08);
}

.blk-cell.legal-move {
  border-color: rgba(34, 197, 94, 0.5);
  background: linear-gradient(145deg, rgba(34, 197, 94, 0.15) 0%, #0f172a 100%);
}

.blk-cell.legal-move::after {
  content: '';
  position: absolute;
  inset: 30%;
  border-radius: 50%;
  background: rgba(34, 197, 94, 0.4);
  animation: blk-dot-pulse 1.5s ease-in-out infinite;
}

@keyframes blk-dot-pulse {
  0%, 100% { transform: scale(0.8); opacity: 0.4; }
  50% { transform: scale(1.2); opacity: 0.8; }
}

.blk-cell.goal-cell {
  background: linear-gradient(145deg, rgba(245, 158, 11, 0.12) 0%, rgba(245, 158, 11, 0.04) 100%);
  border-color: rgba(245, 158, 11, 0.3);
}

.blk-cell.goal-cell.goal-red { border-color: rgba(239, 68, 68, 0.3); background: linear-gradient(145deg, rgba(239,68,68,0.1) 0%, rgba(239,68,68,0.03) 100%); }
.blk-cell.goal-cell.goal-blue { border-color: rgba(59, 130, 246, 0.3); background: linear-gradient(145deg, rgba(59,130,246,0.1) 0%, rgba(59,130,246,0.03) 100%); }
.blk-cell.goal-cell.goal-green { border-color: rgba(34, 197, 94, 0.3); background: linear-gradient(145deg, rgba(34,197,94,0.1) 0%, rgba(34,197,94,0.03) 100%); }
.blk-cell.goal-cell.goal-purple { border-color: rgba(168, 85, 247, 0.3); background: linear-gradient(145deg, rgba(168,85,247,0.1) 0%, rgba(168,85,247,0.03) 100%); }

.blk-cell-coord {
  position: absolute;
  bottom: 1px;
  right: 3px;
  font-size: 0.5rem;
  color: rgba(148, 163, 184, 0.25);
  pointer-events: none;
}

/* ─── Player Pieces ────────────────────────────────────── */
.blk-piece {
  position: absolute;
  width: 65%;
  height: 65%;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  font-weight: 900;
  color: white;
  z-index: 10;
  transition: all 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.5);
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}

.blk-piece::before {
  content: '';
  position: absolute;
  inset: -4px;
  border-radius: 50%;
  border: 2px solid currentColor;
  opacity: 0;
  transition: opacity 0.3s;
}

.blk-piece.current-turn::before {
  opacity: 0.6;
  animation: blk-piece-glow 1.5s ease-in-out infinite;
}

@keyframes blk-piece-glow {
  0%, 100% { opacity: 0.3; transform: scale(1); }
  50% { opacity: 0.7; transform: scale(1.1); }
}

/* ─── Walls ────────────────────────────────────────────── */
.blk-wall {
  position: absolute;
  z-index: 5;
  border-radius: 3px;
  transition: all 0.3s ease;
}

.blk-wall.horizontal {
  height: 10px;
  background: linear-gradient(180deg, #fcd34d 0%, #f59e0b 40%, #b45309 100%);
  box-shadow: 
    inset 0 1px 1px rgba(255,255,255,0.6),
    inset 0 -2px 2px rgba(0,0,0,0.4),
    0 4px 12px rgba(245, 158, 11, 0.5), 
    0 8px 16px rgba(0, 0, 0, 0.6);
}

.blk-wall.vertical {
  width: 10px;
  background: linear-gradient(90deg, #fcd34d 0%, #f59e0b 40%, #b45309 100%);
  box-shadow: 
    inset 1px 0 1px rgba(255,255,255,0.6),
    inset -2px 0 2px rgba(0,0,0,0.4),
    0 4px 12px rgba(245, 158, 11, 0.5), 
    4px 0 16px rgba(0, 0, 0, 0.6);
}

/* ─── Question Overlay ─────────────────────────────────── */
.blk-question-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.85);
  backdrop-filter: blur(8px);
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
  animation: blk-fade-in 0.3s ease;
}

@keyframes blk-fade-in {
  from { opacity: 0; }
  to { opacity: 1; }
}

.blk-question-card {
  background: var(--blk-card);
  border: 1px solid var(--blk-border);
  border-radius: 24px;
  padding: 32px;
  max-width: 640px;
  width: 90%;
  box-shadow: 0 25px 80px rgba(0, 0, 0, 0.5);
  animation: blk-slide-up 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}

@keyframes blk-slide-up {
  from { transform: translateY(40px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}

.blk-question-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
}

.blk-question-badge {
  font-size: 0.75rem;
  font-weight: 700;
  padding: 4px 14px;
  border-radius: 20px;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.blk-question-text {
  font-size: 1.15rem;
  font-weight: 600;
  line-height: 1.6;
  margin-bottom: 24px;
  color: var(--blk-text);
}

.blk-question-text img {
  max-width: 100%;
  border-radius: 12px;
  margin-top: 12px;
}

.blk-option-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.blk-option-btn {
  background: rgba(30, 41, 59, 0.8);
  border: 1.5px solid rgba(148, 163, 184, 0.15);
  border-radius: 14px;
  padding: 14px 18px;
  color: var(--blk-text);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
  text-align: left;
  display: flex;
  align-items: center;
  gap: 10px;
}

.blk-option-btn:hover {
  border-color: rgba(99, 102, 241, 0.5);
  background: rgba(99, 102, 241, 0.1);
  transform: translateY(-2px);
}

.blk-option-btn .opt-letter {
  width: 30px;
  height: 30px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 0.85rem;
  background: rgba(99, 102, 241, 0.2);
  color: #818cf8;
  flex-shrink: 0;
}

.blk-option-btn.correct {
  border-color: #22c55e;
  background: rgba(34, 197, 94, 0.15);
}

.blk-option-btn.correct .opt-letter {
  background: rgba(34, 197, 94, 0.3);
  color: #22c55e;
}

.blk-option-btn.incorrect {
  border-color: #ef4444;
  background: rgba(239, 68, 68, 0.1);
}

.blk-option-btn.incorrect .opt-letter {
  background: rgba(239, 68, 68, 0.3);
  color: #ef4444;
}

.blk-option-btn:disabled {
  cursor: default;
  opacity: 0.7;
}

/* ─── Result Banner ────────────────────────────────────── */
.blk-result-banner {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  z-index: 200;
  padding: 24px 48px;
  border-radius: 20px;
  font-size: 1.4rem;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: 3px;
  animation: blk-result-pop 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
  pointer-events: none;
}

.blk-result-banner.correct {
  background: rgba(34, 197, 94, 0.2);
  border: 2px solid #22c55e;
  color: #22c55e;
  box-shadow: 0 0 40px rgba(34, 197, 94, 0.3);
}

.blk-result-banner.incorrect {
  background: rgba(239, 68, 68, 0.2);
  border: 2px solid #ef4444;
  color: #ef4444;
  box-shadow: 0 0 40px rgba(239, 68, 68, 0.3);
}

@keyframes blk-result-pop {
  0% { transform: translate(-50%, -50%) scale(0); opacity: 0; }
  100% { transform: translate(-50%, -50%) scale(1); opacity: 1; }
}

/* ─── Winner Overlay ───────────────────────────────────── */
.blk-winner-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.9);
  z-index: 300;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 24px;
  animation: blk-fade-in 0.5s ease;
}

.blk-winner-trophy {
  font-size: 5rem;
  animation: blk-trophy-bounce 1s ease infinite;
}

@keyframes blk-trophy-bounce {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-15px); }
}

.blk-winner-text {
  font-size: 2rem;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: 3px;
}

.blk-rankings-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
  min-width: 300px;
}

.blk-rank-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 20px;
  background: var(--blk-card);
  border: 1px solid var(--blk-border);
  border-radius: 14px;
  font-weight: 700;
}

.blk-rank-item .rank-num {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  font-weight: 900;
  background: rgba(245, 158, 11, 0.2);
  color: var(--blk-gold);
}

.blk-rank-item:first-child .rank-num {
  background: linear-gradient(135deg, #f59e0b, #d97706);
  color: white;
}

/* ─── Waiting Screen ───────────────────────────────────── */
.blk-waiting {
  position: fixed;
  inset: 0;
  z-index: 50;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 20px;
  background: radial-gradient(ellipse at 30% 20%, #0f172a 0%, var(--blk-bg) 100%);
}

.blk-waiting-code {
  font-size: 4rem;
  font-weight: 900;
  letter-spacing: 12px;
  color: var(--blk-gold);
  text-shadow: 0 0 30px rgba(245, 158, 11, 0.3);
}

.blk-waiting-label {
  font-size: 1rem;
  color: var(--blk-dim);
  text-transform: uppercase;
  letter-spacing: 4px;
}

.blk-waiting-title {
  font-size: 2rem;
  font-weight: 800;
  margin-bottom: 8px;
}

.blk-waiting .blk-player-slots {
  display: flex;
  gap: 16px;
  margin-top: 12px;
}

.blk-player-slot {
  width: 80px;
  height: 80px;
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  font-weight: 900;
  color: white;
  border: 2px dashed rgba(255, 255, 255, 0.2);
  opacity: 0.5;
  transition: all 0.3s;
}

.blk-player-slot.connected {
  border-style: solid;
  opacity: 1;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

/* ═══════════════════════════════════════════════════════
   DASHBOARD / CONTROLLER STYLES
   ═══════════════════════════════════════════════════════ */

.blk-dashboard-body {
  margin: 0;
  padding: 0;
  min-height: 100vh;
  background: radial-gradient(ellipse at top, #0f172a 0%, var(--blk-bg) 100%);
  color: var(--blk-text);
  font-family: 'Outfit', 'Inter', sans-serif;
}

.blk-dash-container {
  max-width: 600px;
  margin: 0 auto;
  padding: 16px;
}

/* ── Join Screen ──────────────────────────────────────── */
.blk-join-screen {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  gap: 20px;
  padding: 20px;
}

.blk-join-card {
  background: var(--blk-card);
  border: 1px solid var(--blk-border);
  border-radius: 24px;
  padding: 32px;
  width: 100%;
  max-width: 420px;
  text-align: center;
}

.blk-join-card h1 {
  font-size: 1.6rem;
  margin-bottom: 4px;
}

.blk-join-card p {
  color: var(--blk-dim);
  font-size: 0.9rem;
  margin-bottom: 24px;
}

.blk-join-input {
  width: 100%;
  padding: 14px 18px;
  background: rgba(30, 41, 59, 0.8);
  border: 1.5px solid rgba(148, 163, 184, 0.2);
  border-radius: 14px;
  color: var(--blk-text);
  font-size: 1.3rem;
  font-weight: 800;
  letter-spacing: 6px;
  text-align: center;
  text-transform: uppercase;
  outline: none;
  margin-bottom: 16px;
  transition: border-color 0.2s;
  box-sizing: border-box;
}

.blk-join-input:focus {
  border-color: rgba(99, 102, 241, 0.5);
}

.blk-join-input::placeholder {
  letter-spacing: 2px;
  font-weight: 400;
  color: rgba(148, 163, 184, 0.4);
}

/* ── Role Selection ───────────────────────────────────── */
.blk-role-select {
  display: flex;
  gap: 10px;
  margin-bottom: 16px;
}

.blk-role-option {
  flex: 1;
  padding: 14px 10px;
  border: 1.5px solid rgba(148, 163, 184, 0.2);
  border-radius: 14px;
  background: rgba(30, 41, 59, 0.5);
  color: var(--blk-dim);
  text-align: center;
  cursor: pointer;
  transition: all 0.2s;
  font-weight: 700;
  font-size: 0.85rem;
}

.blk-role-option.selected {
  border-color: rgba(99, 102, 241, 0.5);
  background: rgba(99, 102, 241, 0.1);
  color: #818cf8;
}

.blk-role-option:hover:not(.selected) {
  border-color: rgba(148, 163, 184, 0.35);
}

.blk-role-icon {
  font-size: 1.8rem;
  display: block;
  margin-bottom: 6px;
}

.blk-role-label {
  font-weight: 800;
  font-size: 0.9rem;
}

.blk-role-desc {
  font-size: 0.7rem;
  color: var(--blk-dim);
  margin-top: 4px;
}

/* ── Color Selector (student mode) ────────────────────── */
.blk-color-select {
  display: flex;
  gap: 10px;
  justify-content: center;
  margin-bottom: 16px;
}

.blk-color-option {
  width: 48px;
  height: 48px;
  border-radius: 14px;
  cursor: pointer;
  border: 2.5px solid transparent;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  font-weight: 900;
  color: white;
  transition: all 0.2s;
  opacity: 0.6;
}

.blk-color-option:hover { opacity: 0.85; transform: scale(1.1); }

.blk-color-option.selected {
  opacity: 1;
  border-color: white;
  transform: scale(1.15);
  box-shadow: 0 0 20px rgba(255,255,255,0.2);
}

/* ── Buttons ──────────────────────────────────────────── */
.blk-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  border: none;
  border-radius: 14px;
  font-size: 0.95rem;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.2s;
  color: white;
}

.blk-btn-primary {
  background: linear-gradient(135deg, #6366f1, #8b5cf6);
  box-shadow: 0 4px 16px rgba(99, 102, 241, 0.3);
}

.blk-btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 24px rgba(99, 102, 241, 0.4);
}

.blk-btn-success {
  background: linear-gradient(135deg, #22c55e, #16a34a);
  box-shadow: 0 4px 16px rgba(34, 197, 94, 0.3);
}

.blk-btn-success:hover { transform: translateY(-2px); }

.blk-btn-danger {
  background: linear-gradient(135deg, #ef4444, #dc2626);
  box-shadow: 0 4px 16px rgba(239, 68, 68, 0.3);
}

.blk-btn-danger:hover { transform: translateY(-2px); }

.blk-btn-gold {
  background: linear-gradient(135deg, #f59e0b, #d97706);
  box-shadow: 0 4px 16px rgba(245, 158, 11, 0.3);
}

.blk-btn-gold:hover { transform: translateY(-2px); }

.blk-btn-sm { padding: 8px 16px; font-size: 0.8rem; border-radius: 10px; }
.blk-btn-block { width: 100%; }

/* ── Controller Panels ────────────────────────────────── */
.blk-dash-header {
  background: var(--blk-card);
  border: 1px solid var(--blk-border);
  border-radius: 18px;
  padding: 16px 20px;
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.blk-dash-header h2 { font-size: 1.1rem; font-weight: 800; }

.blk-dash-code {
  font-weight: 900;
  letter-spacing: 3px;
  color: var(--blk-gold);
  font-size: 1rem;
}

.blk-dash-section {
  background: var(--blk-card);
  border: 1px solid var(--blk-border);
  border-radius: 18px;
  padding: 16px 20px;
  margin-bottom: 12px;
}

.blk-dash-section h3 {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--blk-dim);
  text-transform: uppercase;
  letter-spacing: 1.5px;
  margin-bottom: 12px;
}

/* ── Player Cards ─────────────────────────────────────── */
.blk-dash-players {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.blk-dash-player-card {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 14px;
  background: rgba(30, 41, 59, 0.5);
  border-radius: 14px;
  border: 1px solid transparent;
  transition: all 0.2s;
}

.blk-dash-player-card.active-turn {
  border-color: rgba(245, 158, 11, 0.4);
  background: rgba(245, 158, 11, 0.05);
}

.blk-dash-player-dot {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 900;
  font-size: 0.9rem;
  color: white;
  flex-shrink: 0;
}

.blk-dash-player-info { flex: 1; min-width: 0; }
.blk-dash-player-name { font-size: 0.85rem; font-weight: 700; }

.blk-dash-player-stats {
  font-size: 0.72rem;
  color: var(--blk-dim);
  display: flex;
  gap: 10px;
  margin-top: 2px;
}

/* ── Mini Board (dashboard) ───────────────────────────── */
.blk-mini-board-wrap {
  margin: 0 auto;
  width: 100%;
  max-width: 360px;
}

.blk-mini-board {
  display: grid;
  grid-template-columns: repeat(9, 1fr);
  grid-template-rows: repeat(9, 1fr);
  gap: 2px;
  aspect-ratio: 1;
  width: 100%;
  position: relative;
  background: rgba(0,0,0,0.3);
  border-radius: 10px;
  padding: 4px;
}

.blk-mini-cell {
  background: rgba(30,41,59,0.7);
  border-radius: 3px;
  border: 1px solid rgba(148,163,184,0.08);
  position: relative;
  cursor: pointer;
  transition: all 0.12s;
  aspect-ratio: 1;
}

.blk-mini-cell:hover {
  border-color: rgba(99,102,241,0.4);
  background: rgba(99,102,241,0.1);
}

.blk-mini-cell.mini-legal {
  border-color: rgba(34,197,94,0.4);
  background: rgba(34,197,94,0.12);
}

.blk-mini-cell.mini-goal {
  border-color: rgba(245,158,11,0.25);
  background: rgba(245,158,11,0.06);
}

.blk-mini-cell.mini-selected {
  border-color: rgba(245,158,11,0.7);
  background: rgba(245,158,11,0.15);
  box-shadow: 0 0 8px rgba(245,158,11,0.3);
}

.blk-mini-piece {
  position: absolute;
  width: 70%;
  height: 70%;
  border-radius: 50%;
  top: 50%;
  left: 50%;
  transform: translate(-50%,-50%);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.55rem;
  font-weight: 900;
  color: white;
  z-index: 2;
}

.blk-mini-wall {
  position: absolute;
  z-index: 3;
  background: linear-gradient(90deg, #f59e0b, #d97706);
  border-radius: 2px;
  box-shadow: 0 0 4px rgba(245,158,11,0.4);
}

/* ── D-Pad ────────────────────────────────────────────── */
.blk-dpad {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  grid-template-rows: repeat(3, 1fr);
  gap: 6px;
  max-width: 170px;
  margin: 0 auto;
}

.blk-dpad-btn {
  width: 50px;
  height: 50px;
  border-radius: 12px;
  border: 1.5px solid rgba(148, 163, 184, 0.2);
  background: rgba(30, 41, 59, 0.8);
  color: var(--blk-text);
  font-size: 1.3rem;
  cursor: pointer;
  transition: all 0.15s;
  display: flex;
  align-items: center;
  justify-content: center;
}

.blk-dpad-btn:hover:not(:disabled) {
  background: rgba(99, 102, 241, 0.15);
  border-color: rgba(99, 102, 241, 0.4);
  transform: scale(1.05);
}

.blk-dpad-btn:active:not(:disabled) { transform: scale(0.95); }
.blk-dpad-btn:disabled { opacity: 0.3; cursor: not-allowed; }
.blk-dpad-center { border: none; background: transparent; cursor: default; }

/* ── Title Input ──────────────────────────────────────── */
.blk-title-input {
  width: 100%;
  padding: 10px 14px;
  background: rgba(30, 41, 59, 0.8);
  border: 1.5px solid rgba(148, 163, 184, 0.2);
  border-radius: 10px;
  color: var(--blk-text);
  font-size: 0.9rem;
  font-weight: 600;
  outline: none;
  margin-bottom: 8px;
  box-sizing: border-box;
}

.blk-title-input:focus { border-color: rgba(99, 102, 241, 0.5); }

/* ── Mode Selector ────────────────────────────────────── */
.blk-mode-select {
  display: flex;
  gap: 8px;
  margin-bottom: 12px;
}

.blk-mode-option {
  flex: 1;
  padding: 12px;
  border: 1.5px solid rgba(148, 163, 184, 0.2);
  border-radius: 12px;
  background: rgba(30, 41, 59, 0.5);
  color: var(--blk-dim);
  text-align: center;
  cursor: pointer;
  transition: all 0.2s;
  font-weight: 700;
  font-size: 0.85rem;
}

.blk-mode-option.selected {
  border-color: rgba(99, 102, 241, 0.5);
  background: rgba(99, 102, 241, 0.1);
  color: #818cf8;
}

.blk-mode-option:hover:not(.selected) {
  border-color: rgba(148, 163, 184, 0.35);
}

/* ── Q-Bank Import Section ────────────────────────────── */
.blk-qbank-section {
  background: rgba(0, 0, 0, 0.2);
  border: 1px dashed rgba(255, 255, 255, 0.2);
  padding: 12px;
  border-radius: 10px;
  margin-bottom: 12px;
}

.blk-qbank-section .qb-label {
  font-size: 0.75rem;
  color: #10b981;
  font-weight: 800;
  margin-bottom: 8px;
}

.blk-qbank-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  margin-bottom: 8px;
}

.blk-qbank-grid select,
.blk-qbank-grid input {
  width: 100%;
  padding: 7px 8px;
  border-radius: 6px;
  border: 1px solid rgba(255,255,255,0.2);
  background: rgba(0,0,0,0.4);
  color: #fff;
  font-size: 0.75rem;
  outline: none;
  box-sizing: border-box;
}

.blk-qbank-checks {
  display: flex;
  gap: 14px;
  margin-bottom: 8px;
  font-size: 0.75rem;
  color: var(--blk-dim);
}

.blk-qbank-checks label { display: flex; align-items: center; gap: 4px; cursor: pointer; }

/* ── Question Panel (teacher view on dash) ────────────── */
.blk-question-panel {
  background: rgba(30, 41, 59, 0.5);
  border-radius: 14px;
  padding: 16px;
}

.blk-question-panel .q-text {
  font-size: 0.95rem;
  font-weight: 600;
  margin-bottom: 12px;
  line-height: 1.5;
}

.blk-question-panel .q-options {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.blk-question-panel .q-option-btn {
  padding: 10px 14px;
  border: 1.5px solid rgba(148, 163, 184, 0.15);
  border-radius: 10px;
  background: rgba(15, 23, 42, 0.6);
  color: var(--blk-text);
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
  text-align: left;
  display: flex;
  align-items: center;
  gap: 8px;
}

.blk-question-panel .q-option-btn:hover {
  border-color: rgba(99, 102, 241, 0.4);
  background: rgba(99, 102, 241, 0.08);
}

.blk-question-panel .q-option-btn.correct {
  border-color: #22c55e;
  background: rgba(34, 197, 94, 0.12);
}

.blk-question-panel .q-option-btn.incorrect {
  border-color: #ef4444;
  background: rgba(239, 68, 68, 0.08);
}

/* ── Error Toast ──────────────────────────────────────── */
.blk-toast {
  position: fixed;
  bottom: 80px;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(239, 68, 68, 0.2);
  border: 1px solid rgba(239, 68, 68, 0.4);
  color: #fca5a5;
  padding: 10px 24px;
  border-radius: 12px;
  font-size: 0.85rem;
  font-weight: 600;
  z-index: 999;
  animation: blk-toast-in 0.3s ease, blk-toast-out 0.3s ease 2.5s forwards;
  pointer-events: none;
}

.blk-toast.success {
  background: rgba(34, 197, 94, 0.2);
  border-color: rgba(34, 197, 94, 0.4);
  color: #86efac;
}

@keyframes blk-toast-in {
  from { transform: translateX(-50%) translateY(20px); opacity: 0; }
  to { transform: translateX(-50%) translateY(0); opacity: 1; }
}

@keyframes blk-toast-out {
  from { opacity: 1; }
  to { opacity: 0; }
}

/* ── Wall Placement Overlay on Mini Board ─────────────── */
.blk-wall-ghost {
  position: absolute;
  z-index: 4;
  border-radius: 2px;
  opacity: 0.6;
  pointer-events: none;
}

.blk-wall-ghost.horizontal {
  height: 5px;
  background: rgba(245,158,11,0.5);
}

.blk-wall-ghost.vertical {
  width: 5px;
  background: rgba(245,158,11,0.5);
}

/* ── Responsive ───────────────────────────────────────── */
@media (max-width: 768px) {
  .blk-piece { font-size: 0.75rem; }
  .blk-hud { padding: 6px 10px; gap: 6px; min-height: 50px; }
  .blk-hud-avatar { width: 36px; height: 36px; font-size: 1rem; }
  .blk-hud-name { font-size: 0.75rem; }
  .blk-hud-stats { font-size: 0.62rem; gap: 6px; }
  .blk-hud-join-code { font-size: 0.85rem; letter-spacing: 3px; }
  .blk-option-grid { grid-template-columns: 1fr; }
}