:root {
  --bg: #0f0e17;
  --surface: #1a1826;
  --surface2: #252237;
  --accent: #ff6b6b;
  --accent2: #ffd93d;
  --accent3: #6bcb77;
  --accent4: #4d96ff;
  --text: #fffffe;
  --text-muted: #a7a9be;
  --radius: 16px;
  --shadow: 0 8px 32px rgba(0,0,0,0.4);
}

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

body {
  font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding: 20px;
  background-image:
    radial-gradient(ellipse at 20% 50%, rgba(77,150,255,0.08) 0%, transparent 60%),
    radial-gradient(ellipse at 80% 20%, rgba(255,107,107,0.08) 0%, transparent 60%);
}

.container {
  width: 100%;
  max-width: 900px;
}

header {
  text-align: center;
  padding: 32px 0 24px;
}

header h1 {
  font-size: 2.8rem;
  font-weight: 800;
  letter-spacing: -1px;
  background: linear-gradient(135deg, var(--accent2), var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.subtitle {
  color: var(--text-muted);
  margin-top: 6px;
  font-size: 1rem;
  font-style: italic;
}

/* SCREENS */
.screen { display: none; }
.screen.active { display: block; }

/* SETUP CARD */
.setup-card {
  background: var(--surface);
  border-radius: var(--radius);
  padding: 32px;
  box-shadow: var(--shadow);
  border: 1px solid rgba(255,255,255,0.06);
}

.setup-card h2 {
  font-size: 1.4rem;
  margin-bottom: 24px;
  color: var(--text);
}

.count-selector label {
  display: block;
  color: var(--text-muted);
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 10px;
}

.count-btns {
  display: flex;
  gap: 8px;
  margin-bottom: 28px;
  flex-wrap: wrap;
}

.count-btn {
  padding: 8px 18px;
  border-radius: 999px;
  border: 2px solid rgba(255,255,255,0.12);
  background: transparent;
  color: var(--text-muted);
  font-size: 0.9rem;
  cursor: pointer;
  transition: all 0.2s;
}

.count-btn:hover { border-color: var(--accent4); color: var(--accent4); }
.count-btn.active {
  background: var(--accent4);
  border-color: var(--accent4);
  color: #fff;
  font-weight: 700;
}

.inputs-row {
  display: flex;
  gap: 10px;
  margin-bottom: 16px;
  flex-wrap: wrap;
}

.input-group {
  flex: 1;
  min-width: 100px;
}

.input-group label {
  display: block;
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-bottom: 5px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.input-group input {
  width: 100%;
  padding: 10px 12px;
  border-radius: 10px;
  border: 2px solid rgba(255,255,255,0.1);
  background: var(--surface2);
  color: var(--text);
  font-size: 0.95rem;
  transition: border-color 0.2s;
  outline: none;
}

.input-group input:focus {
  border-color: var(--accent4);
}

.input-group input::placeholder { color: var(--text-muted); opacity: 0.5; }

.input-divider {
  width: 100%;
  border: none;
  border-top: 1px dashed rgba(255,255,255,0.1);
  margin: 8px 0 16px;
}

/* BUTTONS */
.btn-primary {
  display: block;
  width: 100%;
  padding: 14px;
  border-radius: var(--radius);
  border: none;
  background: linear-gradient(135deg, var(--accent), #ff8e53);
  color: #fff;
  font-size: 1.1rem;
  font-weight: 700;
  cursor: pointer;
  margin-top: 8px;
  transition: transform 0.15s, box-shadow 0.15s;
  box-shadow: 0 4px 20px rgba(255,107,107,0.35);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(255,107,107,0.5);
}

.btn-primary:active { transform: translateY(0); }

.btn-secondary {
  padding: 12px 28px;
  border-radius: var(--radius);
  border: 2px solid var(--accent3);
  background: transparent;
  color: var(--accent3);
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
}

.btn-secondary:hover { background: var(--accent3); color: var(--bg); }

.btn-ghost {
  padding: 12px 28px;
  border-radius: var(--radius);
  border: 2px solid rgba(255,255,255,0.15);
  background: transparent;
  color: var(--text-muted);
  font-size: 1rem;
  cursor: pointer;
  transition: all 0.2s;
}

.btn-ghost:hover { border-color: var(--text-muted); color: var(--text); }

/* GAME SCREEN */
.game-area {
  position: relative;
  background: var(--surface);
  border-radius: var(--radius);
  padding: 20px;
  box-shadow: var(--shadow);
  border: 1px solid rgba(255,255,255,0.06);
  overflow: hidden;
}

#ladder-canvas {
  display: block;
  width: 100%;
}

.labels {
  display: flex;
  position: absolute;
  left: 20px;
  right: 20px;
  pointer-events: none;
}

.top-labels { top: 0; align-items: flex-start; }
.bottom-labels { bottom: 0; align-items: flex-end; }

.label-item {
  flex: 1;
  text-align: center;
  cursor: pointer;
  pointer-events: all;
  padding: 8px 4px;
  transition: transform 0.15s;
}

.label-item:hover { transform: scale(1.05); }

.label-name {
  display: inline-block;
  background: var(--surface2);
  border: 2px solid rgba(255,255,255,0.12);
  border-radius: 10px;
  padding: 6px 10px;
  font-size: 0.85rem;
  font-weight: 600;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 100%;
  transition: all 0.2s;
}

.label-item.clickable .label-name:hover {
  border-color: var(--accent4);
  background: rgba(77,150,255,0.15);
}

.label-item.revealed .label-name {
  border-color: var(--accent3);
  background: rgba(107,203,119,0.15);
  color: var(--accent3);
}

.result-label .label-name {
  border-color: rgba(255,255,255,0.1);
  color: var(--text-muted);
  font-size: 0.8rem;
}

.result-label.revealed .label-name {
  color: var(--accent2);
  border-color: var(--accent2);
  background: rgba(255,217,61,0.12);
}

.game-controls {
  display: flex;
  gap: 12px;
  justify-content: center;
  margin-top: 20px;
}

/* RESULT PANEL */
.result-panel {
  background: var(--surface);
  border-radius: var(--radius);
  padding: 28px;
  margin-top: 20px;
  box-shadow: var(--shadow);
  border: 1px solid rgba(255,255,255,0.06);
  text-align: center;
}

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

#result-content {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  justify-content: center;
  margin-bottom: 24px;
}

.result-card {
  background: var(--surface2);
  border-radius: 14px;
  padding: 16px 20px;
  min-width: 140px;
  text-align: center;
  border: 2px solid transparent;
  animation: popIn 0.4s cubic-bezier(0.34, 1.56, 0.64, 1) both;
}

.result-card.highlight {
  border-color: var(--accent2);
  box-shadow: 0 0 20px rgba(255,217,61,0.2);
}

.result-card .rc-player {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 6px;
}

.result-card .rc-arrow {
  font-size: 1.2rem;
  color: var(--text-muted);
  margin-bottom: 6px;
}

.result-card .rc-result {
  font-size: 0.9rem;
  color: var(--accent2);
  font-weight: 600;
}

@keyframes popIn {
  from { opacity: 0; transform: scale(0.7); }
  to   { opacity: 1; transform: scale(1); }
}

/* TOAST */
.toast {
  position: fixed;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%) translateY(20px);
  background: var(--surface2);
  color: var(--text);
  padding: 12px 24px;
  border-radius: 999px;
  font-size: 0.95rem;
  box-shadow: var(--shadow);
  border: 1px solid rgba(255,255,255,0.1);
  opacity: 0;
  transition: opacity 0.3s, transform 0.3s;
  pointer-events: none;
  z-index: 999;
}

.toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

.toast.hidden { display: none; }

/* Responsive */
@media (max-width: 600px) {
  header h1 { font-size: 2rem; }
  .setup-card { padding: 20px; }
  .count-btns { gap: 6px; }
  .count-btn { padding: 7px 14px; font-size: 0.85rem; }
}