/**
 * Simulador de Circuitos Electrónicos 3D - Estilos Visuales de Alta Gama
 * fijate.com/tools/simulador-circuitos-3d/
 */

:root {
  --circuit-bg: #090d16;
  --circuit-card-bg: rgba(15, 23, 42, 0.85);
  --circuit-card-border: rgba(56, 189, 248, 0.2);
  --circuit-accent: #0ea5e9;
  --circuit-accent-glow: rgba(14, 165, 233, 0.35);
  --circuit-text-main: #f8fafc;
  --circuit-text-muted: #94a3b8;
  --circuit-surface: #1e293b;
  --circuit-surface-hover: #334155;
  --circuit-danger: #ef4444;
  --circuit-success: #22c55e;
  --circuit-warning: #f59e0b;
  --radius-lg: 16px;
  --radius-md: 10px;
  --radius-sm: 6px;
  --font-heading: 'Outfit', sans-serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
}

[data-theme="light"] {
  --circuit-bg: #f1f5f9;
  --circuit-card-bg: rgba(255, 255, 255, 0.95);
  --circuit-card-border: rgba(14, 165, 233, 0.3);
  --circuit-text-main: #0f172a;
  --circuit-text-muted: #475569;
  --circuit-surface: #e2e8f0;
  --circuit-surface-hover: #cbd5e1;
}

/* Layout General */
body {
  overflow-x: clip;
  width: 100%;
  max-width: 100%;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background-color: var(--circuit-bg);
  color: var(--circuit-text-main);
  font-family: var(--font-body);
  margin: 0;
  padding: 0;
}

.tool-layout {
  max-width: 1200px;
  margin: 1.25rem auto 3rem;
  padding: 0 1rem;
  box-sizing: border-box;
}

.tool-with-sidebar {
  display: flex;
  gap: 2rem;
  align-items: flex-start;
}

.tool-main-content {
  flex: 1 1 0%;
  min-width: 0;
  max-width: 100%;
}

/* Tarjeta Principal */
.circuit-app-card {
  background: var(--circuit-card-bg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--circuit-card-border);
  border-radius: var(--radius-lg);
  box-shadow: 0 16px 40px -10px rgba(0, 0, 0, 0.45);
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

/* Barra Superior de Control */
.circuit-top-toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem 1.25rem;
  background: rgba(15, 23, 42, 0.6);
  border-bottom: 1px solid var(--circuit-card-border);
}

.toolbar-left {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex: 1 1 320px;
  min-width: 0;
}

.toolbar-label {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--circuit-text-main);
  white-space: nowrap;
}

.select-wrapper {
  flex: 1 1 0%;
  min-width: 0;
}

.circuit-select {
  width: 100%;
  max-width: 100%;
  min-width: 0;
  text-overflow: ellipsis;
  white-space: nowrap;
  overflow: hidden;
  height: 42px;
  padding: 0 0.85rem;
  background: var(--circuit-surface);
  color: var(--circuit-text-main);
  border: 1px solid rgba(56, 189, 248, 0.3);
  border-radius: var(--radius-md);
  font-family: var(--font-body);
  font-size: 0.9rem;
  font-weight: 500;
  outline: none;
  cursor: pointer;
  transition: all 0.2s ease;
}

.circuit-select:focus {
  border-color: var(--circuit-accent);
  box-shadow: 0 0 0 3px var(--circuit-accent-glow);
}

.toolbar-right {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.btn-circuit-action {
  height: 42px;
  padding: 0 0.9rem;
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  background: var(--circuit-surface);
  color: var(--circuit-text-main);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-md);
  font-family: var(--font-body);
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
}

.btn-circuit-action:hover {
  background: var(--circuit-surface-hover);
  border-color: var(--circuit-accent);
  transform: translateY(-1px);
}

.btn-circuit-action.active {
  background: var(--circuit-accent);
  color: #ffffff;
}

.btn-danger-action {
  color: #f87171;
  border-color: rgba(239, 68, 68, 0.3);
}

.btn-danger-action:hover {
  background: rgba(239, 68, 68, 0.15);
  border-color: #ef4444;
}

/* Escenario WebGL 3D */
.circuit-viewport-wrapper {
  position: relative;
  width: 100%;
  height: 600px;
  background: #090d16;
  overflow: hidden;
}

.circuit-canvas-container {
  width: 100%;
  height: 100%;
  touch-action: none; /* Permite rotar y zoom sin scroll accidental en móvil */
}

.circuit-canvas-container canvas {
  width: 100% !important;
  height: 100% !important;
  display: block;
}

/* HUD Flotante */
.circuit-hud-overlay {
  position: absolute;
  top: 1rem;
  left: 1rem;
  right: 1rem;
  pointer-events: none;
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 1rem;
}

.hud-box {
  pointer-events: auto;
  background: rgba(15, 23, 42, 0.88);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(56, 189, 248, 0.3);
  border-radius: var(--radius-md);
  padding: 0.85rem 1rem;
  box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.5);
  max-width: 320px;
}

.hud-box-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.4rem;
}

.hud-tag {
  font-family: var(--font-heading);
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--circuit-accent);
}

.hud-status {
  background: rgba(239, 68, 68, 0.2);
  border: 1px solid #ef4444;
  color: #fca5a5;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.15rem 0.5rem;
  border-radius: 9999px;
  animation: pulseCorto 1s infinite alternate;
}

@keyframes pulseCorto {
  from { opacity: 0.6; }
  to { opacity: 1; }
}

.hud-digital-readout {
  font-family: var(--font-mono);
  font-size: 2rem;
  font-weight: 700;
  color: #84cc16; /* Tono LCD */
  background: #0f240c;
  padding: 0.35rem 0.65rem;
  border-radius: var(--radius-sm);
  border: 1px solid #166534;
  text-align: right;
  letter-spacing: 1px;
  box-shadow: inset 0 2px 6px rgba(0, 0, 0, 0.6);
  margin-bottom: 0.6rem;
}

.hud-multimeter-controls {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.35rem;
}

.btn-multimeter-mode {
  height: 38px;
  padding: 0 0.4rem;
  background: var(--circuit-surface);
  color: var(--circuit-text-muted);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.15s ease;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.btn-multimeter-mode:hover {
  color: var(--circuit-text-main);
  background: var(--circuit-surface-hover);
}

.btn-multimeter-mode.active {
  background: #eab308;
  color: #0f172a;
  border-color: #ca8a04;
}

.hud-hints {
  pointer-events: auto;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  background: rgba(15, 23, 42, 0.75);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  padding: 0.6rem 0.85rem;
  border-radius: var(--radius-md);
  font-size: 0.78rem;
  color: var(--circuit-text-muted);
}

.hint-item {
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.hint-item kbd {
  background: var(--circuit-surface);
  color: var(--circuit-text-main);
  border: 1px solid rgba(255, 255, 255, 0.2);
  padding: 0.15rem 0.4rem;
  border-radius: 4px;
  font-family: var(--font-mono);
  font-size: 0.7rem;
}

/* Caja de Herramientas (Toolbox) */
.circuit-toolbox-container {
  padding: 1.25rem;
  background: rgba(15, 23, 42, 0.5);
  border-top: 1px solid var(--circuit-card-border);
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.toolbox-heading {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--circuit-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  display: block;
  margin-bottom: 0.5rem;
}

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

.btn-tool-comp {
  height: 44px;
  min-height: 44px;
  padding: 0 0.75rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--circuit-surface);
  color: var(--circuit-text-main);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-md);
  font-family: var(--font-body);
  font-size: 0.85rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s ease;
  white-space: nowrap;
}

.btn-tool-comp:hover {
  background: var(--circuit-surface-hover);
  border-color: var(--circuit-accent);
  transform: translateY(-2px);
}

.comp-icon {
  font-size: 1.1rem;
}

.comp-icon-red { color: #ef4444; }
.comp-icon-green { color: #22c55e; }
.comp-icon-blue { color: #3b82f6; }

/* Paleta de Color de Cables */
.wire-palette-section {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.wire-color-palette {
  display: flex;
  gap: 0.6rem;
}

.btn-wire-color {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--c);
  border: 2px solid transparent;
  cursor: pointer;
  transition: all 0.2s ease;
  position: relative;
}

.btn-wire-color:hover {
  transform: scale(1.15);
}

.btn-wire-color.active {
  border-color: #ffffff;
  box-shadow: 0 0 0 3px var(--circuit-accent);
}

/* Panel de Información Didáctica */
.circuit-info-card {
  padding: 1.5rem;
  background: rgba(15, 23, 42, 0.4);
  border-top: 1px solid var(--circuit-card-border);
}

.circuit-info-title {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  margin: 0 0 0.6rem 0;
  color: var(--circuit-text-main);
}

.circuit-info-desc {
  font-size: 0.95rem;
  line-height: 1.6;
  color: var(--circuit-text-muted);
  margin: 0 0 1rem 0;
}

.circuit-theory-box {
  background: var(--circuit-surface);
  border-left: 4px solid var(--circuit-accent);
  padding: 0.85rem 1rem;
  border-radius: var(--radius-sm);
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.theory-badge {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--circuit-accent);
  letter-spacing: 0.5px;
}

.theory-formula {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  color: var(--circuit-text-main);
}

/* Toast de Notificación */
.circuit-toast {
  position: fixed;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%) translateY(100px);
  background: rgba(15, 23, 42, 0.95);
  border: 1px solid var(--circuit-accent);
  color: #f8fafc;
  padding: 0.75rem 1.4rem;
  border-radius: 9999px;
  font-size: 0.9rem;
  font-weight: 500;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.6);
  pointer-events: none;
  opacity: 0;
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  z-index: 9999;
}

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

/* Modales Estilizados */
.circuit-modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.75);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  z-index: 10000;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s ease;
}

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

.circuit-modal-dialog {
  background: var(--circuit-card-bg);
  border: 1px solid var(--circuit-card-border);
  border-radius: var(--radius-lg);
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.7);
  width: 100%;
  max-width: 680px;
  max-height: 85vh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  transform: scale(0.95);
  transition: transform 0.25s ease;
}

.circuit-modal-backdrop.active .circuit-modal-dialog {
  transform: scale(1);
}

.circuit-modal-sm {
  max-width: 440px;
}

.circuit-modal-header {
  padding: 1.25rem 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid var(--circuit-card-border);
}

.circuit-modal-title {
  font-family: var(--font-heading);
  font-size: 1.2rem;
  margin: 0;
  color: var(--circuit-text-main);
}

.btn-modal-close {
  background: transparent;
  border: none;
  font-size: 1.5rem;
  color: var(--circuit-text-muted);
  cursor: pointer;
  padding: 0.2rem 0.5rem;
  line-height: 1;
}

.btn-modal-close:hover {
  color: var(--circuit-text-main);
}

.circuit-modal-body {
  padding: 1.5rem;
  overflow-y: auto;
  font-size: 0.92rem;
  line-height: 1.6;
  color: var(--circuit-text-muted);
}

.circuit-modal-body h4 {
  color: var(--circuit-text-main);
  margin: 1.25rem 0 0.5rem 0;
}

.circuit-modal-body h4:first-child {
  margin-top: 0;
}

.code-formula-box {
  background: var(--circuit-surface);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  padding: 0.6rem 0.9rem;
  border-radius: var(--radius-sm);
  color: var(--circuit-accent);
  margin: 0.6rem 0;
}

.table-responsive {
  overflow-x: auto;
  margin: 1rem 0;
}

.circuit-theory-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.85rem;
}

.circuit-theory-table th,
.circuit-theory-table td {
  padding: 0.5rem 0.75rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  text-align: left;
}

.circuit-theory-table th {
  color: var(--circuit-text-main);
  background: rgba(255, 255, 255, 0.04);
}

.color-dot {
  display: inline-block;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  margin-right: 0.35rem;
  vertical-align: middle;
}

.circuit-modal-footer {
  padding: 1rem 1.5rem;
  border-top: 1px solid var(--circuit-card-border);
  display: flex;
  justify-content: flex-end;
  gap: 0.75rem;
}

.btn-modal-action,
.btn-modal-cancel {
  height: 42px;
  padding: 0 1.2rem;
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 0.9rem;
  cursor: pointer;
  transition: all 0.2s ease;
}

.btn-modal-action {
  background: var(--circuit-accent);
  color: #ffffff;
  border: none;
}

.btn-modal-action:hover {
  filter: brightness(1.1);
}

.btn-modal-cancel {
  background: transparent;
  color: var(--circuit-text-muted);
  border: 1px solid rgba(255, 255, 255, 0.15);
}

.btn-modal-cancel:hover {
  color: var(--circuit-text-main);
  background: var(--circuit-surface);
}

/* Responsividad para móviles y pantallas pequeñas */
@media (max-width: 991px) {
  .circuit-viewport-wrapper {
    height: 460px;
  }

  .hud-hints {
    display: none; /* Ocultar atajos en pantallas táctiles */
  }

  .circuit-hud-overlay {
    flex-direction: column;
  }
}

@media (max-width: 640px) {
  .circuit-viewport-wrapper {
    height: 380px;
  }

  .toolbar-left,
  .toolbar-right {
    width: 100%;
    flex: 1 1 100%;
  }

  .btn-circuit-action {
    flex: 1 1 calc(50% - 0.25rem);
    justify-content: center;
  }

  .hud-box {
    max-width: 100%;
    width: 100%;
  }

  .hud-digital-readout {
    font-size: 1.5rem;
  }
}

/* ──────────────────────────────────────────────
   Toast de notificaciones
   ────────────────────────────────────────────── */
.circuit-toast {
  position: fixed;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%) translateY(80px);
  background: rgba(15, 23, 42, 0.95);
  color: #f8fafc;
  border: 1px solid rgba(14, 165, 233, 0.4);
  border-radius: 10px;
  padding: 0.65rem 1.2rem;
  font-family: var(--font-body);
  font-size: 0.9rem;
  font-weight: 500;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.45);
  z-index: 9999;
  pointer-events: none;
  opacity: 0;
  transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1), opacity 0.3s ease;
  white-space: nowrap;
  max-width: calc(100vw - 2rem);
  overflow: hidden;
  text-overflow: ellipsis;
}

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

/* ──────────────────────────────────────────────
   Cursor canvas - mejoras táctiles
   ────────────────────────────────────────────── */
.circuit-canvas-container canvas {
  cursor: default;
  touch-action: none;
}

/* ──────────────────────────────────────────────
   Caja de instrucciones de interacción (banner)
   ────────────────────────────────────────────── */
.circuit-interaction-tips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.25rem;
  padding: 0.6rem 1rem;
  background: rgba(14, 165, 233, 0.06);
  border-top: 1px solid rgba(14, 165, 233, 0.12);
  font-size: 0.78rem;
  color: var(--circuit-text-muted);
}

.circuit-tip-item {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
}

.circuit-tip-item kbd {
  display: inline-flex;
  align-items: center;
  padding: 0.1rem 0.4rem;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 4px;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--circuit-text-main);
}

@media (max-width: 640px) {
  .circuit-interaction-tips {
    display: none;
  }
  .circuit-toast {
    font-size: 0.82rem;
    padding: 0.55rem 0.9rem;
  }
}

/* ──────────────────────────────────────────────
   Barra de control interactivo en vivo (Puesta en marcha)
   ────────────────────────────────────────────── */
.circuit-live-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem 1.25rem;
  padding: 0.65rem 1.25rem;
  background: rgba(15, 23, 42, 0.75);
  border-bottom: 1px solid var(--circuit-card-border);
}

.live-status-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.3rem 0.75rem;
  background: rgba(34, 197, 94, 0.12);
  border: 1px solid rgba(34, 197, 94, 0.3);
  border-radius: 9999px;
  font-size: 0.78rem;
  font-weight: 600;
  color: #4ade80;
}

.live-pulse-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: #22c55e;
  box-shadow: 0 0 8px #22c55e;
  animation: liveDotPulse 1.8s ease-in-out infinite;
}

@keyframes liveDotPulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(0.85); }
}

.live-actions-container {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.6rem;
}

.btn-live-action {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.45rem 1.1rem;
  min-height: 40px;
  border-radius: var(--radius-sm);
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.88rem;
  border: none;
  cursor: pointer;
  user-select: none;
  transition: transform 0.1s ease, box-shadow 0.2s ease, background 0.2s ease;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.25);
}

.btn-live-action:active,
.btn-live-action.is-pressed {
  transform: translateY(2px) scale(0.98);
}

.btn-live-push {
  background: linear-gradient(135deg, #ef4444, #b91c1c);
  color: #ffffff;
  box-shadow: 0 0 15px rgba(239, 68, 68, 0.35);
}

.btn-live-push:hover {
  background: linear-gradient(135deg, #f87171, #dc2626);
  box-shadow: 0 0 20px rgba(239, 68, 68, 0.55);
}

.btn-live-push.is-pressed {
  background: #991b1b;
  box-shadow: 0 0 25px rgba(239, 68, 68, 0.8), inset 0 2px 4px rgba(0, 0, 0, 0.4);
}

.btn-live-switch {
  background: linear-gradient(135deg, #2563eb, #1d4ed8);
  color: #ffffff;
}

.btn-live-switch:hover {
  background: linear-gradient(135deg, #3b82f6, #1e40af);
}

.btn-live-toggle {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.45rem 0.85rem;
  min-height: 40px;
  border-radius: var(--radius-sm);
  background: var(--circuit-surface);
  color: var(--circuit-text-main);
  border: 1px solid var(--circuit-card-border);
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
}

.btn-live-toggle:hover {
  background: var(--circuit-surface-hover);
}

.btn-live-toggle.active {
  background: rgba(14, 165, 233, 0.2);
  border-color: var(--circuit-accent);
  color: #38bdf8;
}

.btn-live-kbd {
  display: inline-block;
  padding: 0.05rem 0.35rem;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  background: rgba(0, 0, 0, 0.3);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 4px;
}

.live-pot-wrap {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.3rem 0.75rem;
  background: var(--circuit-surface);
  border: 1px solid var(--circuit-card-border);
  border-radius: var(--radius-sm);
  font-size: 0.8rem;
}

.live-pot-slider {
  width: 110px;
  accent-color: var(--circuit-accent);
  cursor: pointer;
}

.live-pot-val {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  min-width: 42px;
  color: var(--circuit-accent);
}