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

:root {
  --bg-primary: #07090e;
  --bg-secondary: #0e121a;
  --bg-card: rgba(18, 23, 33, 0.75);
  --bg-card-hover: rgba(26, 33, 48, 0.9);
  --border-color: rgba(255, 255, 255, 0.08);
  --border-focus: rgba(0, 229, 255, 0.5);

  --accent-cyan: #00e5ff;
  --accent-cyan-glow: rgba(0, 229, 255, 0.35);
  --accent-emerald: #00ff9d;
  --accent-emerald-glow: rgba(0, 255, 157, 0.35);
  --accent-amber: #ffb703;
  --accent-purple: #b5179e;
  --accent-rose: #ff0055;

  --text-main: #f1f5f9;
  --text-muted: #94a3b8;
  --text-dim: #64748b;

  --font-sans: 'Outfit', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-full: 9999px;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  -webkit-font-smoothing: antialiased;
}

body {
  background-color: var(--bg-primary);
  color: var(--text-main);
  font-family: var(--font-sans);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
  background-image: 
    radial-gradient(circle at 15% 15%, rgba(0, 229, 255, 0.05) 0%, transparent 40%),
    radial-gradient(circle at 85% 85%, rgba(181, 23, 158, 0.05) 0%, transparent 40%);
}

/* Header & Nav */
header.app-header {
  width: 100%;
  background: rgba(10, 14, 22, 0.85);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-color);
  padding: 12px 24px;
  position: sticky;
  top: 0;
  z-index: 50;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  cursor: pointer;
}

.brand-icon {
  width: 38px;
  height: 38px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, #00e5ff 0%, #0077b6 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  box-shadow: 0 0 16px var(--accent-cyan-glow);
}

.brand-text h1 {
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  background: linear-gradient(90deg, #ffffff 40%, var(--accent-cyan) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.brand-text p {
  font-size: 0.75rem;
  color: var(--text-dim);
  font-weight: 400;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 14px;
  font-size: 0.85rem;
  font-weight: 600;
  font-family: var(--font-sans);
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-color);
  background: var(--bg-card);
  color: var(--text-main);
  cursor: pointer;
  transition: all 0.18s cubic-bezier(0.16, 1, 0.3, 1);
  text-decoration: none;
  user-select: none;
}

.btn:hover {
  background: var(--bg-card-hover);
  border-color: rgba(255, 255, 255, 0.18);
  transform: translateY(-1px);
}

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

.btn-primary {
  background: linear-gradient(135deg, #00b4d8 0%, #0077b6 100%);
  border-color: rgba(0, 229, 255, 0.4);
  color: #ffffff;
  box-shadow: 0 4px 12px rgba(0, 180, 216, 0.25);
}

.btn-primary:hover {
  background: linear-gradient(135deg, #00c6eb 0%, #0096c7 100%);
  box-shadow: 0 6px 16px rgba(0, 229, 255, 0.35);
  border-color: var(--accent-cyan);
}

.btn-accent {
  background: rgba(0, 229, 255, 0.12);
  border-color: rgba(0, 229, 255, 0.3);
  color: var(--accent-cyan);
}

.btn-accent:hover {
  background: rgba(0, 229, 255, 0.2);
  border-color: var(--accent-cyan);
  box-shadow: 0 0 12px var(--accent-cyan-glow);
}

.badge {
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  padding: 2px 7px;
  border-radius: var(--radius-full);
  letter-spacing: 0.04em;
}

.badge-easy { background: rgba(0, 255, 157, 0.15); color: var(--accent-emerald); border: 1px solid rgba(0, 255, 157, 0.3); }
.badge-medium { background: rgba(0, 229, 255, 0.15); color: var(--accent-cyan); border: 1px solid rgba(0, 229, 255, 0.3); }
.badge-hard { background: rgba(255, 183, 3, 0.15); color: var(--accent-amber); border: 1px solid rgba(255, 183, 3, 0.3); }
.badge-expert { background: rgba(181, 23, 158, 0.2); color: #f72585; border: 1px solid rgba(247, 37, 133, 0.4); }

/* Main Game Layout */
main.game-wrapper {
  max-width: 1200px;
  width: 100%;
  margin: 0 auto;
  padding: 16px 20px 40px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
  flex: 1;
}

/* Info & HUD Bar */
.level-info-bar {
  width: 100%;
  background: var(--bg-card);
  backdrop-filter: blur(12px);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 12px 18px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}

.level-meta {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.level-meta h2 {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-main);
}

.author-pill {
  font-size: 0.78rem;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 4px;
}

.author-pill a {
  color: var(--accent-cyan);
  text-decoration: none;
}

.author-pill a:hover {
  text-decoration: underline;
}

.hud-stats {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

.stat-box {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.stat-label {
  font-size: 0.68rem;
  text-transform: uppercase;
  color: var(--text-dim);
  font-weight: 600;
  letter-spacing: 0.05em;
}

.stat-value {
  font-family: var(--font-mono);
  font-size: 1rem;
  font-weight: 700;
  color: var(--accent-cyan);
}

.stat-value.ready { color: var(--accent-emerald); }
.stat-value.active { color: var(--accent-cyan); }
.stat-value.solved { color: var(--accent-amber); }

/* Canvas Arena */
.arena-card {
  position: relative;
  background: #000000;
  border-radius: var(--radius-lg);
  border: 2px solid var(--border-color);
  overflow: hidden;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.7);
  display: flex;
  justify-content: center;
  align-items: center;
  max-width: 100%;
}

canvas#gameCanvas {
  display: block;
  background: #000000;
  cursor: grab;
  touch-action: none;
}

canvas#gameCanvas:active {
  cursor: grabbing;
}

/* In-game floating buttons */
.canvas-hud-overlay {
  position: absolute;
  top: 12px;
  right: 12px;
  display: flex;
  gap: 8px;
  z-index: 5;
}

.hud-round-btn {
  width: 34px;
  height: 34px;
  border-radius: var(--radius-full);
  background: rgba(10, 14, 22, 0.75);
  backdrop-filter: blur(8px);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 0.85rem;
  transition: all 0.15s ease;
}

.hud-round-btn:hover {
  background: rgba(0, 229, 255, 0.25);
  border-color: var(--accent-cyan);
  color: #fff;
}

/* Controls Tool bar */
.toolbar {
  width: 100%;
  background: var(--bg-card);
  backdrop-filter: blur(12px);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 10px 16px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
}

.toolbar-group {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.key-hint {
  font-size: 0.72rem;
  color: var(--text-dim);
  background: rgba(255, 255, 255, 0.05);
  padding: 2px 6px;
  border-radius: 4px;
  border: 1px solid var(--border-color);
}

/* Mobile Virtual Joystick & DPad */
.touch-controls {
  display: none;
  margin-top: 8px;
  width: 100%;
  max-width: 400px;
  justify-content: center;
  align-items: center;
  gap: 24px;
}

.dpad {
  display: grid;
  grid-template-columns: repeat(3, 52px);
  grid-template-rows: repeat(3, 52px);
  gap: 6px;
}

.dpad-btn {
  background: rgba(18, 23, 33, 0.85);
  border: 1px solid var(--border-color);
  border-radius: 10px;
  color: var(--text-main);
  font-size: 1.3rem;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  user-select: none;
  touch-action: none;
  transition: background 0.1s;
}

.dpad-btn:active, .dpad-btn.pressed {
  background: var(--accent-cyan-glow);
  border-color: var(--accent-cyan);
  color: #fff;
}

.dpad-up { grid-column: 2; grid-row: 1; }
.dpad-left { grid-column: 1; grid-row: 2; }
.dpad-center { grid-column: 2; grid-row: 2; background: transparent; border: none; }
.dpad-right { grid-column: 3; grid-row: 2; }
.dpad-down { grid-column: 2; grid-row: 3; }

/* Level Catalog Modal / Drawer */
.modal-backdrop {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(5, 7, 12, 0.85);
  backdrop-filter: blur(12px);
  z-index: 100;
  justify-content: center;
  align-items: center;
  padding: 20px;
  opacity: 0;
  transition: opacity 0.2s ease-in-out;
}

.modal-backdrop.open {
  display: flex;
  opacity: 1;
}

.modal-window {
  background: #0f131c;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-lg);
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.8);
  width: 100%;
  max-width: 960px;
  max-height: 88vh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  animation: modalPop 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes modalPop {
  from { transform: scale(0.96) translateY(12px); opacity: 0; }
  to { transform: scale(1) translateY(0); opacity: 1; }
}

.modal-header {
  padding: 16px 24px;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: rgba(18, 23, 33, 0.5);
}

.modal-header h3 {
  font-size: 1.25rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 8px;
}

.close-btn {
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-size: 1.4rem;
  cursor: pointer;
  padding: 4px;
  border-radius: 6px;
  line-height: 1;
}

.close-btn:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.1);
}

.catalog-filters {
  padding: 14px 24px;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  background: rgba(15, 19, 28, 0.7);
}

.filter-tabs {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}

.tab-btn {
  padding: 6px 12px;
  font-size: 0.82rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-color);
  color: var(--text-muted);
  cursor: pointer;
  transition: all 0.15s ease;
}

.tab-btn:hover {
  background: rgba(255, 255, 255, 0.08);
  color: #fff;
}

.tab-btn.active {
  background: var(--accent-cyan);
  border-color: var(--accent-cyan);
  color: #07090e;
  box-shadow: 0 0 12px var(--accent-cyan-glow);
}

.search-input-wrapper {
  position: relative;
  min-width: 240px;
}

.search-input {
  width: 100%;
  padding: 7px 12px 7px 32px;
  font-size: 0.85rem;
  background: rgba(0, 0, 0, 0.35);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--text-main);
  outline: none;
  font-family: var(--font-sans);
}

.search-input:focus {
  border-color: var(--accent-cyan);
  box-shadow: 0 0 0 2px var(--accent-cyan-glow);
}

.search-icon {
  position: absolute;
  left: 10px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-dim);
  font-size: 0.85rem;
}

.catalog-grid {
  padding: 20px 24px;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 16px;
  overflow-y: auto;
  max-height: calc(88vh - 150px);
}

.maze-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  overflow: hidden;
  cursor: pointer;
  transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  display: flex;
  flex-direction: column;
}

.maze-card:hover {
  transform: translateY(-3px);
  border-color: rgba(0, 229, 255, 0.4);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.5), 0 0 16px rgba(0, 229, 255, 0.15);
}

.maze-card.active {
  border-color: var(--accent-cyan);
  box-shadow: 0 0 16px var(--accent-cyan-glow);
}

.card-thumb {
  width: 100%;
  height: 140px;
  object-fit: cover;
  background: #000;
  display: block;
}

.card-body {
  padding: 10px 12px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  flex: 1;
}

.card-title {
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--text-main);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.card-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.75rem;
  color: var(--text-dim);
  margin-top: auto;
}

/* Win Celebration Modal */
.win-content {
  text-align: center;
  padding: 32px 28px;
  max-width: 480px;
}

.win-icon {
  font-size: 3.5rem;
  margin-bottom: 8px;
  animation: bounce 0.8s infinite alternate ease-in-out;
}

@keyframes bounce {
  from { transform: translateY(0); }
  to { transform: translateY(-10px); }
}

.win-title {
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--accent-emerald);
  margin-bottom: 6px;
}

.win-subtitle {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-bottom: 20px;
}

.win-stats-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  margin-bottom: 20px;
}

.win-stat-box {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 10px;
}

.win-stat-val {
  font-family: var(--font-mono);
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--accent-cyan);
}

.win-stat-lbl {
  font-size: 0.72rem;
  color: var(--text-dim);
  text-transform: uppercase;
}

.name-input-group {
  display: flex;
  gap: 8px;
  margin-bottom: 16px;
}

.name-input {
  flex: 1;
  padding: 9px 14px;
  background: rgba(0, 0, 0, 0.4);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--text-main);
  font-family: var(--font-sans);
  outline: none;
}

.name-input:focus {
  border-color: var(--accent-cyan);
  box-shadow: 0 0 0 2px var(--accent-cyan-glow);
}

/* Leaderboard Table */
.leaderboard-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.82rem;
  margin-top: 14px;
}

.leaderboard-table th {
  text-align: left;
  color: var(--text-dim);
  padding: 6px 8px;
  border-bottom: 1px solid var(--border-color);
  font-weight: 600;
}

.leaderboard-table td {
  padding: 6px 8px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
  color: var(--text-main);
}

.rank-pill {
  font-weight: 700;
  display: inline-block;
  width: 20px;
  text-align: center;
}

.rank-1 { color: #ffd700; }
.rank-2 { color: #c0c0c0; }
.rank-3 { color: #cd7f32; }

/* Drag & Drop Upload Overlay */
.drop-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(5, 7, 12, 0.92);
  backdrop-filter: blur(12px);
  z-index: 200;
  justify-content: center;
  align-items: center;
  pointer-events: none;
}

.drop-overlay.active {
  display: flex;
}

.drop-box {
  border: 3px dashed var(--accent-cyan);
  border-radius: var(--radius-lg);
  padding: 48px 64px;
  text-align: center;
  background: rgba(14, 18, 26, 0.9);
  box-shadow: 0 0 60px var(--accent-cyan-glow);
  max-width: 480px;
}

/* Footer */
footer.app-footer {
  width: 100%;
  border-top: 1px solid var(--border-color);
  padding: 16px 24px;
  font-size: 0.78rem;
  color: var(--text-dim);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  background: rgba(10, 14, 22, 0.6);
}

footer a {
  color: var(--text-muted);
  text-decoration: none;
  transition: color 0.15s;
}

footer a:hover {
  color: var(--accent-cyan);
}

@media (max-width: 768px) {
  header.app-header {
    padding: 10px 16px;
  }
  .brand-text h1 {
    font-size: 1.1rem;
  }
  .touch-controls {
    display: flex;
  }
  .toolbar {
    justify-content: center;
  }
}