:root {
  --die-size: 180px;
  --die-color: #ffffff;
  --die-dot-color: #1e293b;
  --die-bg: #2150c9;
  --arena-bg: #f1f5f9;
  --stat-bar-color: #2150c9;
}

[data-theme="dark"] {
  --arena-bg: #1e293b;
  --die-color: #f8fafc;
  --die-dot-color: #0f172a;
}

.dice-arena {
  background: var(--arena-bg);
  background-image: radial-gradient(circle at 2px 2px, rgba(0,0,0,0.05) 1px, transparent 0);
  background-size: 40px 40px;
  border-radius: 24px;
  padding: 2rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.5rem;
  perspective: 1000px;
  margin-bottom: 2rem;
  box-shadow: inset 0 2px 10px rgba(0,0,0,0.05);
}

.result-screen {
  background: white;
  padding: 1.5rem 2.5rem;
  border-radius: 24px;
  box-shadow: 0 15px 30px -10px rgba(0, 0, 0, 0.1);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  width: auto;
  min-width: var(--die-size);
  height: calc(var(--die-size) * 0.8);
  animation: float 3s ease-in-out infinite;
  z-index: 10;
}

[data-theme="dark"] .result-screen {
  background: var(--clock-surface);
}

.result-screen .label {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--clock-muted);
  letter-spacing: 1px;
}

.result-screen .value {
  font-size: clamp(2.5rem, 5vw + 1rem, 5rem);
  font-weight: 900;
  color: var(--die-bg);
  line-height: 1;
  white-space: nowrap;
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

.result-screen.pulse {
  animation: pulseScale 0.3s infinite alternate;
}

@keyframes pulseScale {
  from { transform: scale(1); opacity: 0.8; }
  to { transform: scale(1.05); opacity: 1; }
}

.dice-wrapper {
  display: flex;
  gap: 4rem;
  justify-content: center;
  align-items: center;
  height: 250px;
  transform-style: preserve-3d;
}

/* 3D Die Structure */
.die {
  position: relative;
  width: var(--die-size);
  height: var(--die-size);
  transform-style: preserve-3d;
  transition: transform 1.2s cubic-bezier(0.17, 0.67, 0.44, 1.05);
}

.die.rolling {
  transition: transform 4s cubic-bezier(0.1, 1, 0.2, 1);
}

.side {
  position: absolute;
  top: 0;
  left: 0;
  width: var(--die-size);
  height: var(--die-size);
  background: var(--die-color);
  border: 1px solid rgba(0,0,0,0.05);
  border-radius: 20px;
  box-shadow: inset 0 0 20px rgba(0,0,0,0.05), 0 0 5px rgba(0,0,0,0.1);
  backface-visibility: visible;
  display: flex !important;
  justify-content: center;
  align-items: center;
  box-sizing: border-box;
}

/* Dots placement */
.dot {
  position: absolute;
  width: 15%;
  height: 15%;
  background: var(--die-dot-color);
  border-radius: 50%;
  box-shadow: inset 0 2px 4px rgba(0,0,0,0.2);
}

/* Face Rotations & Dot Positions */
/* Face 1 */
.side.front { transform: rotateY(0deg) translateZ(calc(var(--die-size) / 2)); }
.front .dot:nth-child(1) { top: 42.5%; left: 42.5%; }

/* Face 2 */
.side.back { transform: rotateY(180deg) translateZ(calc(var(--die-size) / 2)); }
.back .dot:nth-child(1) { top: 15%; left: 15%; }
.back .dot:nth-child(2) { top: 70%; left: 70%; }

/* Face 3 */
.side.right { transform: rotateY(90deg) translateZ(calc(var(--die-size) / 2)); }
.right .dot:nth-child(1) { top: 15%; left: 15%; }
.right .dot:nth-child(2) { top: 42.5%; left: 42.5%; }
.right .dot:nth-child(3) { top: 70%; left: 70%; }

/* Face 4 */
.side.left { transform: rotateY(-90deg) translateZ(calc(var(--die-size) / 2)); }
.left .dot:nth-child(1) { top: 15%; left: 15%; }
.left .dot:nth-child(2) { top: 15%; left: 70%; }
.left .dot:nth-child(3) { top: 70%; left: 15%; }
.left .dot:nth-child(4) { top: 70%; left: 70%; }

/* Face 5 */
.side.top { transform: rotateX(90deg) translateZ(calc(var(--die-size) / 2)); }
.top .dot:nth-child(1) { top: 15%; left: 15%; }
.top .dot:nth-child(2) { top: 15%; left: 70%; }
.top .dot:nth-child(3) { top: 42.5%; left: 42.5%; }
.top .dot:nth-child(4) { top: 70%; left: 15%; }
.top .dot:nth-child(5) { top: 70%; left: 70%; }

/* Face 6 */
.side.bottom { transform: rotateX(-90deg) translateZ(calc(var(--die-size) / 2)); }
.bottom .dot:nth-child(1) { top: 15%; left: 15%; }
.bottom .dot:nth-child(2) { top: 15%; left: 70%; }
.bottom .dot:nth-child(3) { top: 42.5%; left: 15%; }
.bottom .dot:nth-child(4) { top: 42.5%; left: 70%; }
.bottom .dot:nth-child(5) { top: 70%; left: 15%; }
.bottom .dot:nth-child(6) { top: 70%; left: 70%; }

/* Controls */
.arena-controls {
  text-align: center;
}

.btn-giant {
  padding: 1.5rem 4rem;
  font-size: 1.5rem;
  font-weight: 800;
  letter-spacing: 2px;
  border-radius: 100px;
  box-shadow: 0 10px 20px rgba(33, 80, 201, 0.3);
}

.hint {
  margin-top: 1rem;
  color: var(--clock-muted);
  font-size: 0.9rem;
}

.dice-config {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 3rem;
}

.toggle-group {
  display: flex;
  background: rgba(0,0,0,0.05);
  padding: 0.4rem;
  border-radius: 100px;
}

.btn-toggle {
  border: none;
  background: transparent;
  padding: 0.6rem 1.5rem;
  border-radius: 100px;
  cursor: pointer;
  font-weight: 600;
  color: var(--clock-muted);
  transition: all 0.2s;
}

.btn-toggle.active {
  background: var(--die-bg);
  color: white;
}

/* Stats Section */
.stats-section {
  background: var(--clock-bg);
  border-radius: 20px;
  padding: 2rem;
  border: 1px solid rgba(0,0,0,0.05);
}

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

.total-badge {
  background: var(--die-bg);
  color: white;
  padding: 0.4rem 1rem;
  border-radius: 100px;
  font-weight: 700;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 1.5rem;
  align-items: end;
  min-height: 200px;
  margin-bottom: 2rem;
}

.stat-column {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
}

.stat-bar-wrapper {
  width: 100%;
  height: 150px;
  background: rgba(0,0,0,0.03);
  border-radius: 10px;
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column-reverse;
}

.stat-bar {
  width: 100%;
  background: var(--die-bg);
  border-radius: 6px;
  transition: height 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.stat-label {
  font-weight: 800;
  font-size: 1.2rem;
}

.stat-percent {
  font-size: 0.8rem;
  color: var(--clock-muted);
}

.history-list {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  border-top: 1px solid rgba(0,0,0,0.05);
  padding-top: 1.5rem;
}

.history-item {
  width: 36px;
  height: 36px;
  background: var(--arena-bg);
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
  font-weight: 700;
  animation: popIn 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

@keyframes popIn {
  from { transform: scale(0); opacity: 0; }
  to { transform: scale(1); opacity: 1; }
}

.hidden { display: none !important; }

@media (max-width: 600px) {
  :root {
    --die-size: 120px;
  }
  .dice-wrapper { 
    gap: 1.5rem; 
    height: 180px;
  }
  .stats-grid { gap: 0.5rem; }
  .stat-label { font-size: 1rem; }
}


/* EduTools visual refresh: shared tool polish */
:root {
  --sl-primary: var(--color-primary);
  --sl-primary-hover: var(--color-primary-dark);
  --sl-accent: var(--color-accent);
  --sl-accent-hover: var(--color-accent-dark);
  --sl-border: var(--color-border);
  --gc2-blue: var(--color-primary);
  --gc2-blue-lt: var(--color-primary-soft);
  --die-bg: var(--color-primary);
  --arena-bg: var(--color-primary-soft);
  --stat-bar-color: var(--color-primary);
}

.tool-stage {
  border-color: rgb(219 226 220 / 0.96);
  background: rgb(255 255 255 / 0.94);
  box-shadow: 0 18px 45px rgb(23 58 70 / 0.08);
}

.tool-stage :is(.sl-step, .gc2-panel, .grade-panel, .team-card, .rb-panel, .rb-card, .rb-section, .md-card, .md-panel, .vote-card, .clock-panel, .roulette-panel, .noise-card, .stats-section, .dice-arena) {
  border-color: rgb(219 226 220 / 0.96);
  border-radius: var(--radius-xl);
  box-shadow: 0 16px 36px rgb(23 58 70 / 0.08);
}

.tool-stage :is(input, textarea, select, .sl-qty-input, .gc2-meta-input, .gc2-setting select, .gc2-setting input[type="number"]) {
  border-color: rgb(202 213 205 / 0.95);
  background-color: #ffffff;
}

.tool-stage :is(input, textarea, select, .sl-qty-input, .gc2-meta-input):focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 4px rgb(23 107 135 / 0.12);
}

.btn--ai,
.gc2-btn--primary,
.btn-giant,
.rb-btn--primary,
.md-primary-action,
.vote-primary,
.clock-primary {
  border-color: var(--color-primary);
  color: #ffffff;
  background: var(--color-primary);
  box-shadow: 0 14px 24px rgb(23 107 135 / 0.18);
}

.btn--ai:hover,
.gc2-btn--primary:hover,
.btn-giant:hover,
.rb-btn--primary:hover,
.md-primary-action:hover,
.vote-primary:hover,
.clock-primary:hover {
  background: var(--color-primary-dark);
}

.sl-step::before {
  background: linear-gradient(90deg, var(--color-primary), #1b7f67, var(--color-accent));
}

.sl-preset.active,
.btn-toggle.active,
.grade-meter span {
  background: var(--color-primary);
}

.sl-qty-btn:hover,
.sl-preset:hover {
  border-color: rgb(23 107 135 / 0.34);
  color: var(--color-primary-dark);
  background: var(--color-primary-soft);
  box-shadow: 0 10px 20px rgb(23 107 135 / 0.12);
}

.rb-section__icon,
.rb-export-card__icon,
.edu-warning-icon,
.face {
  display: inline-grid;
  place-items: center;
  color: var(--color-primary-dark);
}

.edu-warning-icon {
  width: 3.75rem;
  height: 3.75rem;
  margin-bottom: 12px;
  border-radius: var(--radius-md);
  background: var(--color-primary-soft);
}

.rb-section__icon,
.rb-export-card__icon {
  border-radius: var(--radius-md);
  background: var(--color-primary-soft);
}

.material-symbols-outlined {
  vertical-align: middle;
}