/* ============================================
   RC TRICK MANIA X — Track Editor
   "Neon Circuit" Theme
   ============================================ */

:root {
  --bg-deep: #0a0c14;
  --bg-panel: #0f1220;
  --bg-surface: #151a2e;
  --bg-hover: #1c2240;
  --bg-active: #1e2a4a;
  --border: #1e2644;
  --border-bright: #2a3660;
  --text: #c8cee0;
  --text-dim: #6a7190;
  --text-bright: #eef0f8;
  --accent: #00d4ff;
  --accent-dim: #00a0c4;
  --accent-glow: rgba(0, 212, 255, 0.15);
  --orange: #ff8b2e;
  --orange-glow: rgba(255, 139, 46, 0.2);
  --green: #2ecc71;
  --green-glow: rgba(46, 204, 113, 0.15);
  --red: #e74c3c;
  --red-glow: rgba(231, 76, 60, 0.15);
  --font-display: 'Rajdhani', sans-serif;
  --font-mono: 'Share Tech Mono', monospace;
  --radius: 6px;
  --radius-lg: 10px;
}

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

body {
  font-family: var(--font-display);
  background: var(--bg-deep);
  color: var(--text);
  overflow: hidden;
  height: 100vh;
  display: flex;
  flex-direction: column;
  -webkit-font-smoothing: antialiased;
}

/* ---- SCROLLBAR ---- */
::-webkit-scrollbar { width: 5px; height: 5px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border-bright); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: var(--accent-dim); }

/* ============================================
   TOP BAR
   ============================================ */

#topbar {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 10px;
  background: var(--bg-panel);
  border-bottom: 1px solid var(--border);
  z-index: 20;
  flex-shrink: 0;
  height: 48px;
}

.bar-left {
  display: flex;
  align-items: center;
  gap: 8px;
}

.logo {
  font-family: var(--font-mono);
  font-size: 16px;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: 2px;
  text-shadow: 0 0 12px var(--accent-glow);
  white-space: nowrap;
}

#track-name {
  font-family: var(--font-mono);
  font-size: 15px;
  padding: 6px 10px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg-deep);
  color: var(--text-bright);
  width: 160px;
  outline: none;
  transition: border-color 0.2s;
}
#track-name:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 2px var(--accent-glow);
}

.bar-actions {
  display: flex;
  gap: 4px;
  margin-left: 8px;
}

.bar-right {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 8px;
}

#player-info {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--accent);
  white-space: nowrap;
}

/* ---- Command Buttons ---- */

.cmd-btn {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.5px;
  padding: 6px 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg-surface);
  color: var(--text);
  cursor: pointer;
  transition: all 0.15s;
  white-space: nowrap;
  min-height: 36px;
}
.cmd-btn:hover {
  background: var(--bg-hover);
  border-color: var(--border-bright);
  color: var(--text-bright);
}
.cmd-btn:active { transform: scale(0.96); }

.cmd-btn.accent {
  border-color: var(--accent-dim);
  color: var(--accent);
}
.cmd-btn.accent:hover {
  background: var(--accent-glow);
  box-shadow: 0 0 8px var(--accent-glow);
}

.cmd-btn.glow-green {
  border-color: #28a060;
  color: var(--green);
}
.cmd-btn.glow-green:hover {
  background: var(--green-glow);
  box-shadow: 0 0 8px var(--green-glow);
}

.cmd-btn.danger {
  border-color: #8b2020;
  color: var(--red);
}
.cmd-btn.danger:hover {
  background: var(--red-glow);
  box-shadow: 0 0 8px var(--red-glow);
}

.cmd-btn.link-btn {
  border-color: var(--orange);
  color: var(--orange);
  font-size: 12px;
}
.cmd-btn.link-btn:hover {
  background: var(--orange-glow);
}

.hidden { display: none !important; }

/* ============================================
   FLOATING HUD
   ============================================ */

#hud {
  position: fixed;
  top: 56px;
  left: 12px;
  z-index: 15;
  pointer-events: none;
}

#piece-info {
  font-family: var(--font-mono);
  font-size: 16px;
  color: var(--text-bright);
  text-shadow: 0 1px 4px rgba(0,0,0,0.8);
  background: linear-gradient(135deg, rgba(10,12,20,0.85), rgba(15,18,32,0.7));
  padding: 6px 14px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  backdrop-filter: blur(6px);
}

#piece-count {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-dim);
  margin-top: 4px;
  padding-left: 2px;
}

/* ---- Status Toast ---- */

#status-toast {
  position: fixed;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 50;
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--text-bright);
  background: linear-gradient(135deg, rgba(10,12,20,0.95), rgba(30,42,74,0.9));
  border: 1px solid var(--accent-dim);
  border-radius: var(--radius-lg);
  padding: 10px 24px;
  box-shadow: 0 4px 20px rgba(0,0,0,0.5), 0 0 15px var(--accent-glow);
  animation: toastIn 0.3s ease;
  white-space: nowrap;
}

@keyframes toastIn {
  from { opacity: 0; transform: translateX(-50%) translateY(10px); }
  to { opacity: 1; transform: translateX(-50%) translateY(0); }
}

/* ============================================
   WORKSPACE (viewport + panel)
   ============================================ */

#workspace {
  flex: 1;
  display: flex;
  min-height: 0;
  overflow: hidden;
}

#viewport {
  flex: 1;
  min-width: 0;
  position: relative;
  cursor: crosshair;
  background: var(--bg-deep);
}
#viewport canvas {
  display: block;
  width: 100% !important;
  height: 100% !important;
}

/* ============================================
   RIGHT PANEL
   ============================================ */

#panel {
  width: 260px;
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  background: var(--bg-panel);
  border-left: 1px solid var(--border);
  overflow: hidden;
}

/* ---- Tool Buttons ---- */

#tools {
  display: flex;
  align-items: center;
  gap: 3px;
  padding: 8px 8px;
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}

.tool-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg-surface);
  color: var(--text-dim);
  cursor: pointer;
  transition: all 0.15s;
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 700;
}
.tool-btn:hover {
  background: var(--bg-hover);
  color: var(--text);
  border-color: var(--border-bright);
}
.tool-btn.active {
  background: var(--accent-glow);
  border-color: var(--accent);
  color: var(--accent);
  box-shadow: 0 0 8px var(--accent-glow);
}
.tool-btn.small {
  width: 36px;
  height: 36px;
  font-size: 12px;
}

.tool-divider {
  width: 1px;
  height: 28px;
  background: var(--border);
  margin: 0 4px;
}

/* ---- Categories ---- */

#categories {
  display: flex;
  flex-wrap: wrap;
  gap: 3px;
  padding: 6px 8px;
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}

.cat-pill {
  font-family: var(--font-display);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.3px;
  padding: 4px 10px;
  border: 1px solid var(--border);
  border-radius: 20px;
  cursor: pointer;
  background: transparent;
  color: var(--text-dim);
  transition: all 0.15s;
  white-space: nowrap;
}
.cat-pill:hover {
  color: var(--text);
  border-color: var(--border-bright);
  background: var(--bg-hover);
}
.cat-pill.active {
  background: var(--orange);
  border-color: var(--orange);
  color: #fff;
  text-shadow: 0 1px 2px rgba(0,0,0,0.3);
}

/* ---- Piece Grid ---- */

#piece-grid {
  flex: 1;
  overflow-y: auto;
  overflow-x: hidden;
  padding: 6px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 4px;
  align-content: start;
}

.piece-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  padding: 5px 3px;
  border: 1px solid transparent;
  border-radius: var(--radius);
  cursor: pointer;
  background: var(--bg-surface);
  color: var(--text-dim);
  transition: all 0.12s;
}
.piece-btn:hover {
  background: var(--bg-hover);
  border-color: var(--border-bright);
  color: var(--text);
}
.piece-btn.active {
  border-color: var(--accent);
  background: var(--accent-glow);
  color: var(--accent);
  box-shadow: inset 0 0 6px var(--accent-glow);
}
.piece-btn canvas {
  width: 60px;
  height: 60px;
  border-radius: 3px;
}
.piece-btn span {
  font-size: 10px;
  font-weight: 600;
  text-align: center;
  max-width: 72px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  letter-spacing: 0.2px;
}

/* ============================================
   MODALS
   ============================================ */

.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.75);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
  animation: fadeIn 0.2s ease;
}

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

.modal-box {
  background: var(--bg-panel);
  border: 1px solid var(--border-bright);
  border-radius: var(--radius-lg);
  padding: 28px;
  min-width: 380px;
  max-height: 80vh;
  overflow-y: auto;
  box-shadow: 0 8px 40px rgba(0,0,0,0.6);
}
.modal-box.wide {
  min-width: 550px;
  max-width: 700px;
}

.modal-box h2 {
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 700;
  color: var(--text-bright);
  margin-bottom: 16px;
  letter-spacing: 0.5px;
}
.modal-box h3 {
  font-size: 14px;
  font-weight: 600;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin: 14px 0 8px;
}
.modal-box p {
  font-size: 14px;
  color: var(--text-dim);
  line-height: 1.5;
  margin-bottom: 16px;
}

.modal-actions {
  display: flex;
  gap: 8px;
  margin-top: 18px;
}

.modal-columns {
  display: flex;
  gap: 16px;
}
.modal-col {
  flex: 1;
  min-width: 0;
}

.code-input {
  font-family: var(--font-mono);
  font-size: 32px;
  text-align: center;
  letter-spacing: 0.4em;
  text-transform: uppercase;
  width: 100%;
  max-width: 260px;
  padding: 12px;
  background: var(--bg-deep);
  border: 2px solid var(--border-bright);
  border-radius: var(--radius);
  color: var(--accent);
  outline: none;
}
.code-input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

.error-text {
  color: var(--red);
  font-size: 13px;
  margin-top: 10px;
}

/* ---- Track List ---- */

.track-list {
  max-height: 300px;
  overflow-y: auto;
}

.track-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 12px;
  background: var(--bg-surface);
  border: 1px solid transparent;
  border-radius: var(--radius);
  margin-bottom: 4px;
  cursor: pointer;
  font-size: 14px;
  transition: all 0.12s;
}
.track-item:hover {
  background: var(--bg-hover);
  border-color: var(--accent-dim);
  color: var(--text-bright);
}

/* ============================================
   MOBILE RESPONSIVE
   ============================================ */

@media (max-width: 768px) {
  #workspace {
    flex-direction: column;
  }

  #panel {
    width: 100%;
    max-height: 240px;
    border-left: none;
    border-top: 1px solid var(--border);
    flex-direction: column;
  }

  #piece-grid {
    grid-template-columns: repeat(auto-fill, minmax(70px, 1fr));
  }

  #tools {
    justify-content: center;
    flex-wrap: wrap;
  }

  #categories {
    overflow-x: auto;
    flex-wrap: nowrap;
    padding: 4px 6px;
  }

  .bar-actions { gap: 2px; }
  .cmd-btn { padding: 5px 8px; font-size: 11px; }
  .cmd-btn svg { width: 14px; height: 14px; }
  .logo { font-size: 13px; }
  #track-name { width: 110px; font-size: 13px; }

  #hud { top: 52px; left: 6px; }
  #piece-info { font-size: 13px; padding: 4px 10px; }

  .modal-box { min-width: 90vw; padding: 20px; }
  .modal-box.wide { min-width: 90vw; }
  .modal-columns { flex-direction: column; }
}

@media (max-width: 480px) {
  .cmd-btn span,
  .cmd-btn:not(.link-btn) {
    font-size: 0;
    padding: 6px 8px;
  }
  .cmd-btn svg { width: 18px; height: 18px; }
  .bar-right { gap: 4px; }
  #player-info { font-size: 11px; }
}