/* ==========================================================================
   KILOPOLIS ACADEMIA · SANDBOX INTERACTIVO (TRY IT YOURSELF)
   Estilo Split-Screen para Pruebas en Vivo de PHP y Frontend
   ========================================================================== */

:root {
  --sb-bg-body: #f8fafc;
  --sb-bg-topbar: #0f172a;
  --sb-topbar-border: #1e293b;
  --sb-topbar-text: #ffffff;
  --sb-topbar-btn-hover: #1e293b;
  --sb-topbar-btn-color: #94a3b8;
  --sb-topbar-btn-active: #ffffff;

  --sb-bg-header: #f8fafc;
  --sb-header-text: #64748b;
  --sb-header-border: #e2e8f0;

  --sb-bg-editor: #ffffff;
  --sb-editor-text: #0f172a;
  --sb-bg-gutter: #f8fafc;
  --sb-gutter-text: #94a3b8;
  --sb-gutter-border: #e2e8f0;

  --sb-divider: #e2e8f0;
  --sb-divider-hover: #059669;
  --sb-divider-handle: #cbd5e1;

  --sb-dropdown-bg: #ffffff;
  --sb-dropdown-text: #1e293b;
  --sb-dropdown-border: #e2e8f0;
  --sb-dropdown-hover: #f1f5f9;
  --sb-dropdown-shortcut-bg: #f1f5f9;
  --sb-dropdown-shortcut-text: #64748b;
  --sb-dropdown-footer-text: #94a3b8;
}

body.theme-dark {
  --sb-bg-body: #090d16;
  --sb-bg-topbar: #090d16;
  --sb-topbar-border: #1e293b;
  --sb-topbar-text: #ffffff;
  --sb-topbar-btn-hover: #1e293b;
  --sb-topbar-btn-color: #94a3b8;
  --sb-topbar-btn-active: #ffffff;

  --sb-bg-header: #0f172a;
  --sb-header-text: #94a3b8;
  --sb-header-border: #1e293b;

  --sb-bg-editor: #090d16;
  --sb-editor-text: #f8fafc;
  --sb-bg-gutter: #050811;
  --sb-gutter-text: #475569;
  --sb-gutter-border: #1e293b;

  --sb-divider: #1e293b;
  --sb-divider-hover: #10b981;
  --sb-divider-handle: #475569;

  --sb-dropdown-bg: #0f172a;
  --sb-dropdown-text: #f8fafc;
  --sb-dropdown-border: #1e293b;
  --sb-dropdown-hover: #1e293b;
  --sb-dropdown-shortcut-bg: #1e293b;
  --sb-dropdown-shortcut-text: #94a3b8;
  --sb-dropdown-footer-text: #64748b;
}

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

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background-color: var(--sb-bg-body);
  color: var(--sb-editor-text);
  height: 100vh;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: background-color 0.2s ease, color 0.2s ease;
}

/* Clases durante el arrastre del divisor */
body.resizing {
  user-select: none;
}
body.resizing.resizing-col,
body.resizing.resizing-col * {
  cursor: col-resize !important;
}
body.resizing.resizing-row,
body.resizing.resizing-row * {
  cursor: row-resize !important;
}

/* ==========================================================================
   Barra Superior (Top Navigation Bar)
   ========================================================================== */
.sandbox-topbar {
  height: 52px;
  background-color: var(--sb-bg-topbar);
  color: var(--sb-topbar-text);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 16px;
  border-bottom: 1px solid var(--sb-topbar-border);
  flex-shrink: 0;
  z-index: 100;
  position: relative;
}

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

/* Botones Icono Estilo W3Schools */
.sandbox-icon-btn {
  background: transparent;
  border: 1px solid transparent;
  color: var(--sb-topbar-btn-color);
  width: 38px;
  height: 38px;
  border-radius: 6px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  text-decoration: none;
  cursor: pointer;
  transition: all 0.15s ease;
}

.sandbox-icon-btn:hover {
  background: var(--sb-topbar-btn-hover);
  color: var(--sb-topbar-btn-active);
}

.sandbox-icon-btn:active,
.sandbox-icon-btn.active {
  background: #334155;
  color: #ffffff;
}

/* Dropdown del Menú Hamburguesa */
.sandbox-menu-wrap {
  position: relative;
}

.sandbox-dropdown-menu {
  position: absolute;
  top: calc(100% + 8px);
  left: 0;
  width: 310px;
  background: var(--sb-dropdown-bg);
  color: var(--sb-dropdown-text);
  border: 1px solid var(--sb-dropdown-border);
  border-radius: 8px;
  box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.35), 0 8px 10px -6px rgba(0, 0, 0, 0.2);
  padding: 8px 0;
  z-index: 1000;
  animation: fadeInMenu 0.15s ease;
}

@keyframes fadeInMenu {
  from {
    opacity: 0;
    transform: translateY(-6px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.sandbox-dropdown-item {
  width: 100%;
  padding: 10px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: transparent;
  border: none;
  color: var(--sb-dropdown-text);
  font-size: 0.9rem;
  font-weight: 500;
  text-align: left;
  text-decoration: none;
  cursor: pointer;
  transition: background 0.12s ease;
}

.sandbox-dropdown-item:hover {
  background: var(--sb-dropdown-hover);
}

.dropdown-item-left {
  display: flex;
  align-items: center;
  gap: 12px;
}

.dropdown-item-left i {
  font-size: 1.15rem;
  width: 20px;
  text-align: center;
}

.dropdown-shortcut {
  font-family: 'Inter', monospace;
  font-size: 0.72rem;
  background: var(--sb-dropdown-shortcut-bg);
  color: var(--sb-dropdown-shortcut-text);
  padding: 2px 7px;
  border-radius: 4px;
  border: 1px solid var(--sb-dropdown-border);
}

.sandbox-dropdown-divider {
  height: 1px;
  background: var(--sb-dropdown-border);
  margin: 6px 0;
}

.sandbox-dropdown-footer {
  padding: 8px 16px 4px;
  font-size: 0.75rem;
  color: var(--sb-dropdown-footer-text);
  line-height: 1.4;
}

.sandbox-dropdown-footer a {
  color: var(--sb-dropdown-footer-text);
  text-decoration: underline;
}

.sandbox-dropdown-footer a:hover {
  color: #2563eb;
}

/* Botón Verde Ejecutar (Run >) */
.sandbox-run-btn {
  background-color: #059669;
  color: #ffffff;
  border: none;
  padding: 8px 22px;
  border-radius: 6px;
  font-weight: 700;
  font-size: 0.95rem;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  transition: all 0.2s ease;
  box-shadow: 0 2px 6px rgba(5, 150, 105, 0.4);
  margin-left: 6px;
}

.sandbox-run-btn:hover {
  background-color: #047857;
  transform: translateY(-1px);
}

.sandbox-run-btn:disabled {
  opacity: 0.65;
  cursor: not-allowed;
  transform: none;
}

/* Botón Sócrates AI */
.sandbox-socrates-btn {
  background: rgba(37, 99, 235, 0.15);
  color: #60a5fa;
  border: 1px solid rgba(37, 99, 235, 0.35);
  padding: 6px 14px;
  border-radius: 16px;
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: all 0.15s ease;
}

.sandbox-socrates-btn:hover {
  background: #2563eb;
  color: #ffffff;
}

.sandbox-topbar-right {
  display: flex;
  align-items: center;
  gap: 14px;
}

.sandbox-status-text {
  font-size: 0.8rem;
  color: #94a3b8;
}

.sandbox-bootcamp-btn {
  background: #2563eb;
  color: #ffffff;
  padding: 7px 16px;
  border-radius: 20px;
  font-size: 0.84rem;
  font-weight: 600;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  transition: all 0.2s ease;
  box-shadow: 0 2px 6px rgba(37, 99, 235, 0.3);
}

.sandbox-bootcamp-btn:hover {
  background: #1d4ed8;
  color: #ffffff;
  transform: translateY(-1px);
}

/* ==========================================================================
   Contenedor Split-Screen (Paneles del Editor y Resultado)
   ========================================================================== */
.sandbox-main {
  flex-grow: 1;
  display: flex;
  height: calc(100vh - 52px);
  position: relative;
  background-color: var(--sb-bg-body);
  overflow: hidden;
}

/* Panel Izquierdo: Editor */
.sandbox-pane-editor {
  width: 50%;
  height: 100%;
  flex: 1 1 50%;
  min-width: 180px;
  display: flex;
  flex-direction: column;
  background: var(--sb-bg-editor);
  border-right: 1px solid var(--sb-header-border);
  position: relative;
  overflow: hidden;
}

.sandbox-pane-header {
  height: 38px;
  background: var(--sb-bg-header);
  border-bottom: 1px solid var(--sb-header-border);
  padding: 0 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--sb-header-text);
  flex-shrink: 0;
  user-select: none;
}

.sandbox-editor-wrap {
  flex-grow: 1;
  min-height: 0;
  display: flex;
  position: relative;
  overflow: hidden;
}

/* Números de línea */
.sandbox-line-numbers {
  width: 48px;
  background: var(--sb-bg-gutter);
  color: var(--sb-gutter-text);
  font-family: 'Fira Code', 'Consolas', monospace;
  font-size: 0.9rem;
  line-height: 1.6;
  padding: 14px 8px 14px 0;
  text-align: right;
  user-select: none;
  border-right: 1px solid var(--sb-gutter-border);
  overflow: hidden;
  flex-shrink: 0;
}

/* Textarea del editor */
.sandbox-textarea {
  flex-grow: 1;
  background: var(--sb-bg-editor);
  color: var(--sb-editor-text);
  font-family: 'Fira Code', 'Consolas', monospace;
  font-size: 0.92rem;
  line-height: 1.6;
  padding: 14px 16px;
  border: none;
  outline: none;
  resize: none;
  white-space: pre;
  overflow: auto;
  tab-size: 4;
}

/* Panel Derecho: Resultado en Vivo */
.sandbox-pane-output {
  width: 50%;
  height: 100%;
  flex: 1 1 50%;
  min-width: 180px;
  display: flex;
  flex-direction: column;
  background: #ffffff;
  position: relative;
  overflow: hidden;
}

.sandbox-iframe {
  flex-grow: 1;
  width: 100%;
  height: 100%;
  border: none;
  background: #ffffff;
}

/* ==========================================================================
   Divisor de Arrastre (Divider / Resizer)
   ========================================================================== */
.sandbox-divider {
  width: 8px;
  height: 100%;
  background: var(--sb-divider);
  cursor: col-resize;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 10;
  flex-shrink: 0;
  transition: background 0.15s ease;
}

.sandbox-divider-handle {
  width: 2px;
  height: 24px;
  background: var(--sb-divider-handle);
  border-radius: 2px;
  pointer-events: none;
}

.sandbox-divider:hover,
.sandbox-divider.dragging {
  background: var(--sb-divider-hover);
}

.sandbox-divider:hover .sandbox-divider-handle,
.sandbox-divider.dragging .sandbox-divider-handle {
  background: #ffffff;
}

/* ==========================================================================
   Modo Vertical (Apilado: Arriba Editor, Abajo Resultado)
   Dividido 50% / 50% limpio
   ========================================================================== */
.sandbox-main.layout-vertical {
  flex-direction: column;
}

.sandbox-main.layout-vertical .sandbox-pane-editor {
  width: 100% !important;
  height: 50%;
  flex: 1 1 50%;
  min-height: 100px;
  max-height: calc(100% - 100px);
  border-right: none;
  border-bottom: 1px solid var(--sb-header-border);
}

.sandbox-main.layout-vertical .sandbox-divider {
  width: 100%;
  height: 8px;
  cursor: row-resize;
  border-top: 1px solid var(--sb-header-border);
  border-bottom: 1px solid var(--sb-header-border);
}

.sandbox-main.layout-vertical .sandbox-divider-handle {
  width: 24px;
  height: 2px;
}

.sandbox-main.layout-vertical .sandbox-pane-output {
  width: 100% !important;
  height: 50%;
  flex: 1 1 50%;
  min-height: 100px;
}

/* Responsividad para móviles */
@media (max-width: 768px) {
  .sandbox-status-text {
    display: none;
  }
  .sandbox-bootcamp-btn {
    padding: 5px 10px;
    font-size: 0.75rem;
  }
}

/* ==========================================================================
   APARIENCIA DE IDE (PESTAÑAS, BOTONES DE VENTANA Y MODOS DE COLOR)
   ========================================================================== */
.sandbox-header-left {
  display: flex;
  align-items: center;
  gap: 12px;
}

.sandbox-header-right {
  display: flex;
  align-items: center;
  gap: 12px;
}

.sandbox-ide-tab {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--sb-bg-editor);
  color: var(--sb-editor-text);
  padding: 6px 14px;
  border-radius: 6px 6px 0 0;
  border-top: 2px solid #0284c7;
  border-left: 1px solid var(--sb-header-border);
  border-right: 1px solid var(--sb-header-border);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.02em;
}

.sandbox-ide-tab.tab-preview {
  border-top-color: #10b981;
}

.sandbox-ide-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 0.7rem;
  color: var(--sb-header-text);
  background: rgba(0, 0, 0, 0.04);
  border: 1px solid var(--sb-header-border);
  padding: 2px 7px;
  border-radius: 4px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  font-weight: 600;
}

body.theme-dark .sandbox-ide-badge {
  background: rgba(255, 255, 255, 0.05);
}

.sandbox-pane-header {
  height: 42px;
  padding: 0 14px;
}

.sandbox-textarea::-webkit-scrollbar,
.sandbox-line-numbers::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

.sandbox-textarea::-webkit-scrollbar-track,
.sandbox-line-numbers::-webkit-scrollbar-track {
  background: var(--sb-bg-gutter);
}

.sandbox-textarea::-webkit-scrollbar-thumb,
.sandbox-line-numbers::-webkit-scrollbar-thumb {
  background: #cbd5e1;
  border-radius: 4px;
}

body.theme-dark .sandbox-textarea::-webkit-scrollbar-thumb,
body.theme-dark .sandbox-line-numbers::-webkit-scrollbar-thumb {
  background: #333842;
}

body.theme-dark .sandbox-textarea::-webkit-scrollbar-thumb:hover,
body.theme-dark .sandbox-line-numbers::-webkit-scrollbar-thumb:hover {
  background: #4b5263;
}
/* ==========================================================================
   CAPAS DEL EDITOR: MODO SOLO LECTURA RESALTADO (IDE) Y MODO EDITOR
   ========================================================================== */
.sandbox-editor-wrap {
  flex-grow: 1;
  min-height: 0;
  display: flex;
  position: relative;
  overflow: hidden;
  background: #181b20 !important; /* Dark IDE background */
}

.sandbox-code-layer {
  flex-grow: 1;
  height: 100%;
  overflow: auto;
  position: relative;
}

/* Capa 1: Vista Solo Lectura con Resaltado */
.sandbox-layer-view {
  background: #181b20 !important;
  cursor: pointer;
}

.sandbox-layer-view pre {
  margin: 0 !important;
  padding: 14px 16px 40px !important;
  background: transparent !important;
  min-height: 100%;
  box-sizing: border-box;
}

.sandbox-layer-view pre code.hljs {
  padding: 0 !important;
  background: transparent !important;
  font-family: 'Fira Code', 'Cascadia Code', 'JetBrains Mono', Consolas, monospace !important;
  font-size: 0.92rem !important;
  line-height: 1.6 !important;
  white-space: pre !important;
  word-wrap: normal !important;
  tab-size: 4 !important;
}

/* Capa 2: Modo Editor */
.sandbox-layer-edit {
  background: #181b20 !important;
}

.sandbox-textarea {
  width: 100%;
  height: 100%;
  background: #181b20 !important;
  color: #abb2bf !important;
  font-family: 'Fira Code', 'Cascadia Code', 'JetBrains Mono', Consolas, monospace !important;
  font-size: 0.92rem !important;
  line-height: 1.6 !important;
  padding: 14px 16px !important;
  border: none !important;
  outline: none !important;
  resize: none !important;
  white-space: pre !important;
  overflow: auto !important;
  tab-size: 4 !important;
  caret-color: #38bdf8 !important;
}

/* Números de línea con tema IDE */
.sandbox-line-numbers {
  width: 48px;
  background: #131519 !important;
  color: #5c6370 !important;
  font-family: 'Fira Code', 'Cascadia Code', 'JetBrains Mono', Consolas, monospace !important;
  font-size: 0.92rem !important;
  line-height: 1.6 !important;
  padding: 14px 8px 14px 0 !important;
  text-align: right;
  user-select: none;
  border-right: 1px solid #282c34 !important;
  overflow: hidden;
  flex-shrink: 0;
}

/* Botón conmutador de Modo */
.sandbox-mode-toggle-btn {
  background: rgba(37, 99, 235, 0.2);
  color: #60a5fa;
  border: 1px solid rgba(37, 99, 235, 0.4);
  padding: 4px 11px;
  border-radius: 6px;
  font-size: 0.72rem;
  font-weight: 700;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 5px;
  transition: all 0.15s ease;
  font-family: inherit;
}

.sandbox-mode-toggle-btn:hover {
  background: #2563eb;
  color: #ffffff;
}

.sandbox-mode-toggle-btn.mode-edit {
  background: rgba(5, 150, 105, 0.2);
  color: #34d399;
  border-color: rgba(5, 150, 105, 0.4);
}
.sandbox-mode-toggle-btn.mode-edit:hover {
  background: #059669;
  color: #ffffff;
}

.sandbox-action-btn {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12);
  color: #cbd5e1;
  font-size: 0.72rem;
  padding: 4px 10px;
  border-radius: 6px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 5px;
  transition: all 0.15s ease;
  font-family: inherit;
}

.sandbox-action-btn:hover {
  background: rgba(255, 255, 255, 0.15);
  color: #ffffff;
}

.sandbox-action-btn.copied {
  background: #059669 !important;
  border-color: #10b981 !important;
  color: #ffffff !important;
}

.sandbox-view-hint {
  position: sticky;
  bottom: 12px;
  left: 12px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(19, 21, 25, 0.92);
  border: 1px solid rgba(56, 189, 248, 0.35);
  color: #38bdf8;
  font-size: 0.76rem;
  padding: 6px 12px;
  border-radius: 6px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
  margin-top: 10px;
  user-select: none;
  cursor: pointer;
  transition: all 0.2s ease;
}

.sandbox-view-hint:hover {
  background: rgba(2, 132, 199, 0.25);
  border-color: #38bdf8;
  color: #ffffff;
}

/* Corrección de alineación exacta de números de línea */
.sandbox-line-numbers {
  white-space: pre !important;
  font-family: 'Fira Code', 'Cascadia Code', 'JetBrains Mono', Consolas, monospace !important;
  font-size: 0.92rem !important;
  line-height: 1.6 !important;
}