/**
 * Laboratorio de arena y elementos - Hoja de estilos premium
 * Fijate Tools - Rediseño visual completo
 */

:root {
  --bg-body: #0a0e17;
  --bg-card: #111726;
  --bg-card-sub: #161f33;
  --bg-glass: rgba(22, 31, 51, 0.75);
  --border-color: #232f48;
  --border-hover: #3b82f6;
  --border-glow: rgba(59, 130, 246, 0.4);
  --text-main: #f1f5f9;
  --text-muted: #94a3b8;
  --primary: #3b82f6;
  --primary-hover: #2563eb;
  --accent-glow: rgba(59, 130, 246, 0.25);
  --danger: #ef4444;
  --danger-hover: #dc2626;
  --canvas-bg: #0d1117;
  --canvas-glow: rgba(59, 130, 246, 0.15);
  --toast-bg: rgba(22, 31, 51, 0.92);
  --success: #22c55e;
}

[data-theme="light"] {
  --bg-body: #f0f4f8;
  --bg-card: #ffffff;
  --bg-card-sub: #f1f5f9;
  --bg-glass: rgba(241, 245, 249, 0.8);
  --border-color: #cbd5e1;
  --border-hover: #2563eb;
  --border-glow: rgba(37, 99, 235, 0.25);
  --text-main: #0f172a;
  --text-muted: #64748b;
  --primary: #2563eb;
  --primary-hover: #1d4ed8;
  --accent-glow: rgba(37, 99, 235, 0.15);
  --danger: #dc2626;
  --danger-hover: #b91c1c;
  --canvas-bg: #0f172a;
  --canvas-glow: rgba(37, 99, 235, 0.1);
  --toast-bg: rgba(255, 255, 255, 0.92);
  --success: #16a34a;
}

/* ─── Reset canónico ─── */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  overflow-x: clip;
  width: 100%;
  max-width: 100%;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background-color: var(--bg-body);
  color: var(--text-main);
  line-height: 1.5;
}

h1, h2, h3, h4, h5, h6 {
  font-family: 'Outfit', sans-serif;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.mono {
  font-family: 'JetBrains Mono', monospace;
}

/* ─── Layout principal ─── */
.main-wrapper.tool-layout {
  max-width: 1200px;
  width: 100%;
  margin: 1.5rem auto 3rem;
  padding: 0 1rem;
  flex: 1 0 auto;
}

.tool-with-sidebar {
  display: flex;
  gap: 1.5rem;
  align-items: flex-start;
}

.tool-main-content {
  flex: 1 1 0%;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

/* ─── Tarjeta principal ─── */
.card-main {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 1rem;
  padding: 1.25rem;
  box-shadow: 0 8px 32px -4px rgba(0, 0, 0, 0.35),
              0 0 0 1px rgba(255, 255, 255, 0.03);
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  position: relative;
}

/* ─── HUD de telemetría con glassmorphism ─── */
.hud-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 0.65rem 1rem;
  background: var(--bg-glass);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--border-color);
  border-radius: 0.75rem;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.04);
}

.hud-metrics {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.hud-item {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.82rem;
  padding: 0.2rem 0.55rem;
  border-radius: 0.4rem;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.06);
}

[data-theme="light"] .hud-item {
  background: rgba(0, 0, 0, 0.03);
  border-color: rgba(0, 0, 0, 0.06);
}

.hud-label {
  color: var(--text-muted);
  font-size: 0.75rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.hud-value {
  font-family: 'JetBrains Mono', monospace;
  font-weight: 600;
  font-size: 0.82rem;
  color: var(--text-main);
}

.hud-value.highlight {
  color: #38bdf8;
  text-shadow: 0 0 8px rgba(56, 189, 248, 0.3);
}

/* ─── Escenario visual del canvas con marco neón ─── */
.sandbox-stage {
  position: relative;
  width: 100%;
  background: var(--canvas-bg);
  border: 2px solid var(--border-color);
  border-radius: 0.75rem;
  overflow: hidden;
  box-shadow:
    inset 0 0 30px rgba(0, 0, 0, 0.5),
    0 0 20px var(--canvas-glow),
    0 4px 16px -2px rgba(0, 0, 0, 0.4);
  user-select: none;
  -webkit-user-select: none;
  transition: box-shadow 0.3s ease;
}

.sandbox-stage:hover {
  box-shadow:
    inset 0 0 30px rgba(0, 0, 0, 0.5),
    0 0 30px var(--canvas-glow),
    0 0 60px rgba(59, 130, 246, 0.08),
    0 4px 16px -2px rgba(0, 0, 0, 0.4);
}

#sand-canvas {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 480 / 320;
  image-rendering: pixelated;
  image-rendering: crisp-edges;
  touch-action: none;
  cursor: crosshair;
}

/* ─── Cursor flotante del pincel ─── */
#brush-cursor {
  position: fixed;
  pointer-events: none;
  border: 1.5px dashed #ffffff;
  border-radius: 50%;
  transform: translate(-50%, -50%);
  display: none;
  z-index: 1000;
  box-shadow: 0 0 12px rgba(0, 0, 0, 0.5);
  transition: width 0.05s ease, height 0.05s ease;
}

/* ─── Controles de reproducción ─── */
.playback-controls {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  align-items: center;
}

.btn-ctrl {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  height: 40px;
  padding: 0 0.85rem;
  background: var(--bg-card-sub);
  border: 1px solid var(--border-color);
  border-radius: 0.5rem;
  color: var(--text-main);
  font-size: 0.82rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s ease;
  position: relative;
  overflow: hidden;
}

.btn-ctrl::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(59, 130, 246, 0.12), transparent);
  opacity: 0;
  transition: opacity 0.2s ease;
}

.btn-ctrl:hover {
  border-color: var(--border-hover);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(59, 130, 246, 0.15);
}

.btn-ctrl:hover::before {
  opacity: 1;
}

.btn-ctrl.active {
  background: var(--primary);
  color: #ffffff;
  border-color: var(--primary);
  box-shadow: 0 0 16px rgba(59, 130, 246, 0.3);
}

.btn-ctrl.btn-danger-soft:hover {
  border-color: var(--danger);
  background: rgba(239, 68, 68, 0.1);
  color: var(--danger);
  box-shadow: 0 4px 12px rgba(239, 68, 68, 0.15);
}

.btn-ctrl.btn-danger-soft:hover::before {
  background: linear-gradient(135deg, rgba(239, 68, 68, 0.08), transparent);
}

/* ─── Grid de herramientas y elementos ─── */
.workbench-grid {
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: 1.25rem;
}

@media (max-width: 900px) {
  .workbench-grid {
    grid-template-columns: 1fr;
  }
}

/* ─── Selector de materiales / elementos ─── */
.elements-board {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.category-group {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
}

.category-title {
  font-size: 0.7rem;
  text-transform: uppercase;
  font-weight: 600;
  color: var(--text-muted);
  letter-spacing: 0.06em;
  padding-left: 0.15rem;
}

.elements-row {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(130px, 1fr));
  gap: 0.5rem;
}

/* Botones de elemento con glow del color del material */
.btn-element {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  height: 42px;
  padding: 0 0.75rem;
  background: var(--bg-card-sub);
  border: 1px solid var(--border-color);
  border-radius: 0.55rem;
  color: var(--text-main);
  font-size: 0.82rem;
  font-weight: 500;
  cursor: pointer;
  text-align: left;
  transition: all 0.18s ease;
  min-width: 0;
  position: relative;
  overflow: hidden;
}

.btn-element::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  opacity: 0;
  transition: opacity 0.18s ease;
  pointer-events: none;
}

.btn-element:hover {
  border-color: var(--border-hover);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.btn-element.active {
  border-color: #38bdf8;
  box-shadow:
    0 0 0 2px rgba(56, 189, 248, 0.25),
    0 0 16px rgba(56, 189, 248, 0.15);
  background: rgba(56, 189, 248, 0.08);
  font-weight: 600;
}

/* Pulse sutil al activar */
@keyframes elem-pulse {
  0% { box-shadow: 0 0 0 0 rgba(56, 189, 248, 0.4); }
  70% { box-shadow: 0 0 0 6px rgba(56, 189, 248, 0); }
  100% { box-shadow: 0 0 0 0 rgba(56, 189, 248, 0); }
}

.btn-element.active {
  animation: elem-pulse 0.4s ease-out;
}

.elem-badge {
  width: 16px;
  height: 16px;
  border-radius: 5px;
  flex-shrink: 0;
  box-shadow:
    0 0 6px rgba(0, 0, 0, 0.3),
    inset 0 1px 1px rgba(255, 255, 255, 0.15);
  transition: box-shadow 0.18s ease;
}

.btn-element:hover .elem-badge,
.btn-element.active .elem-badge {
  box-shadow:
    0 0 10px currentColor,
    inset 0 1px 1px rgba(255, 255, 255, 0.2);
}

.elem-name {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* ─── Panel lateral de ajustes ─── */
.tool-settings-card {
  background: var(--bg-card-sub);
  border: 1px solid var(--border-color);
  border-radius: 0.75rem;
  padding: 1rem;
  display: flex;
  flex-direction: column;
  gap: 1.1rem;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
}

.setting-group {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
}

/* Separador visual sutil entre grupos */
.setting-group + .setting-group {
  padding-top: 0.85rem;
  border-top: 1px solid var(--border-color);
}

.setting-label {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* ─── Botones de herramienta (Pincel, Relleno, Detonador, Chispazo) ─── */
.tool-modes-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.4rem;
}

.btn-tool-mode {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  height: 40px;
  padding: 0 0.5rem;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 0.45rem;
  color: var(--text-main);
  font-size: 0.8rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s ease;
}

.btn-tool-mode:hover {
  border-color: var(--border-hover);
  transform: translateY(-1px);
  box-shadow: 0 3px 10px rgba(59, 130, 246, 0.12);
}

.btn-tool-mode.active {
  background: var(--primary);
  color: #ffffff;
  border-color: var(--primary);
  box-shadow: 0 0 12px rgba(59, 130, 246, 0.25);
}

/* ─── Tamaños de pincel ─── */
.brush-radios-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 0.35rem;
}

.brush-radio-label {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 38px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 0.45rem;
  cursor: pointer;
  font-size: 0.8rem;
  font-family: 'JetBrains Mono', monospace;
  color: var(--text-main);
  transition: all 0.15s ease;
}

.brush-radio-label:hover {
  border-color: var(--border-hover);
}

.brush-radio-label input {
  display: none;
}

.brush-radio-label:has(input:checked) {
  background: var(--primary);
  border-color: var(--primary);
  color: #ffffff;
  font-weight: 600;
  box-shadow: 0 0 10px rgba(59, 130, 246, 0.2);
}

/* ─── Select canónico ─── */
.select-styled {
  width: 100%;
  max-width: 100%;
  min-width: 0;
  height: 40px;
  padding: 0 0.75rem;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 0.45rem;
  color: var(--text-main);
  font-size: 0.85rem;
  font-family: inherit;
  outline: none;
  text-overflow: ellipsis;
  white-space: nowrap;
  overflow: hidden;
  cursor: pointer;
  transition: border-color 0.2s ease;
}

.select-styled:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 2px var(--accent-glow);
}

/* ─── Presets con estilo premium ─── */
.presets-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.45rem;
}

.btn-preset {
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  height: 40px;
  padding: 0 0.5rem;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 0.45rem;
  color: var(--text-main);
  font-size: 0.78rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s ease;
  position: relative;
  overflow: hidden;
}

.btn-preset::before {
  content: '';
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity 0.2s ease;
}

/* Cada preset con color de hover temático */
.btn-preset[data-preset="volcano"]::before {
  background: linear-gradient(135deg, rgba(255, 69, 0, 0.1), transparent);
}
.btn-preset[data-preset="chainReaction"]::before {
  background: linear-gradient(135deg, rgba(255, 200, 0, 0.1), transparent);
}
.btn-preset[data-preset="greenhouse"]::before {
  background: linear-gradient(135deg, rgba(63, 235, 75, 0.1), transparent);
}
.btn-preset[data-preset="fluidTower"]::before {
  background: linear-gradient(135deg, rgba(56, 139, 253, 0.1), transparent);
}

.btn-preset:hover {
  border-color: var(--border-hover);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.btn-preset:hover::before {
  opacity: 1;
}

/* ─── Toast de notificaciones efímeras ─── */
.toast-container {
  position: fixed;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 8000;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  pointer-events: none;
}

.toast-item {
  padding: 0.6rem 1.25rem;
  background: var(--toast-bg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--border-color);
  border-radius: 0.6rem;
  color: var(--text-main);
  font-size: 0.85rem;
  font-weight: 500;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
  opacity: 0;
  transform: translateY(12px) scale(0.96);
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  white-space: nowrap;
}

.toast-item.show {
  opacity: 1;
  transform: translateY(0) scale(1);
}

/* ─── Info box de atajos de teclado ─── */
.info-box {
  background: var(--bg-card-sub);
  border: 1px solid var(--border-color);
  border-radius: 0.75rem;
  padding: 1rem 1.25rem;
  font-size: 0.82rem;
  color: var(--text-muted);
  line-height: 1.6;
}

.info-box h3 {
  color: var(--text-main);
  font-size: 0.9rem;
  margin-bottom: 0.4rem;
  font-weight: 600;
}

.shortcuts-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.1rem;
  margin-top: 0.5rem;
}

.shortcut-item {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.8rem;
}

kbd {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 24px;
  height: 24px;
  padding: 0.1rem 0.4rem;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-bottom-width: 2px;
  border-radius: 0.3rem;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--text-main);
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.15);
}

/* ─── Modales nativos accesibles ─── */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.75);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  z-index: 9999;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease;
}

.modal-overlay.active {
  opacity: 1;
  pointer-events: auto;
}

.modal-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 1rem;
  max-width: 540px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: 0 20px 60px -8px rgba(0, 0, 0, 0.6),
              0 0 0 1px rgba(255, 255, 255, 0.04);
  transform: scale(0.96) translateY(8px);
  transition: transform 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

.modal-overlay.active .modal-card {
  transform: scale(1) translateY(0);
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem;
  border-bottom: 1px solid var(--border-color);
}

.modal-title {
  font-size: 1.1rem;
  color: var(--text-main);
}

.modal-body {
  padding: 1.25rem;
  color: var(--text-muted);
  font-size: 0.88rem;
  line-height: 1.65;
}

.modal-footer {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 0.75rem;
  padding: 1rem 1.25rem;
  border-top: 1px solid var(--border-color);
}

.btn-modal {
  height: 40px;
  padding: 0 1.25rem;
  border-radius: 0.5rem;
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  border: 1px solid var(--border-color);
  background: var(--bg-card-sub);
  color: var(--text-main);
  transition: all 0.2s ease;
}

.btn-modal:hover {
  border-color: var(--border-hover);
  transform: translateY(-1px);
}

.btn-modal.btn-danger {
  background: var(--danger);
  border-color: var(--danger);
  color: #ffffff;
}

.btn-modal.btn-danger:hover {
  background: var(--danger-hover);
  box-shadow: 0 4px 12px rgba(239, 68, 68, 0.25);
}

/* ─── Responsivo móvil ─── */
@media (max-width: 640px) {
  .main-wrapper.tool-layout {
    padding: 0 0.5rem;
    margin-top: 1rem;
  }

  .card-main {
    padding: 0.75rem;
    border-radius: 0.75rem;
  }

  .hud-bar {
    padding: 0.5rem 0.6rem;
    gap: 0.4rem;
  }

  .hud-metrics {
    gap: 0.4rem;
    width: 100%;
  }

  .hud-item {
    font-size: 0.72rem;
    padding: 0.15rem 0.4rem;
    flex: 1 1 auto;
    justify-content: center;
  }

  .hud-label {
    font-size: 0.65rem;
  }

  .hud-value {
    font-size: 0.72rem;
  }

  .playback-controls {
    width: 100%;
  }

  .elements-row {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .btn-ctrl {
    flex: 1 1 45%;
    font-size: 0.78rem;
  }

  .presets-grid {
    grid-template-columns: 1fr;
  }

  .toast-container {
    bottom: 1rem;
    left: 1rem;
    right: 1rem;
    transform: none;
  }

  .toast-item {
    width: 100%;
    text-align: center;
  }
}

@media (max-width: 380px) {
  .hud-item {
    font-size: 0.65rem;
    padding: 0.1rem 0.3rem;
  }

  .btn-element {
    height: 38px;
    font-size: 0.78rem;
    padding: 0 0.5rem;
  }

  .elem-badge {
    width: 14px;
    height: 14px;
  }
}