/**
 * Fijate Tools - Decodificador y editor de serialización PHP
 * Estilos específicos y responsive
 */

:root {
  --font-main: 'Inter', system-ui, -apple-system, sans-serif;
  --font-heading: 'Outfit', 'Inter', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  --clr-bg: #f8fafc;
  --clr-surface: #ffffff;
  --clr-surface-alt: #f1f5f9;
  --clr-border: #e2e8f0;
  --clr-border-hover: #cbd5e1;
  --clr-text: #0f172a;
  --clr-text-muted: #64748b;
  --clr-text-light: #94a3b8;

  --clr-primary: #3b82f6;
  --clr-primary-hover: #2563eb;
  --clr-primary-subtle: #eff6ff;
  --clr-primary-border: #bfdbfe;

  --clr-success: #10b981;
  --clr-success-bg: #ecfdf5;
  --clr-success-border: #a7f3d0;
  --clr-success-text: #065f46;

  --clr-danger: #ef4444;
  --clr-danger-bg: #fef2f2;
  --clr-danger-border: #fecaca;
  --clr-danger-text: #991b1b;

  --clr-warning: #f59e0b;
  --clr-warning-bg: #fffbeb;
  --clr-warning-border: #fde68a;
  --clr-warning-text: #92400e;

  --clr-purple: #8b5cf6;
  --clr-purple-bg: #f5f3ff;
  --clr-cyan: #06b6d4;
  --clr-cyan-bg: #ecfeff;

  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.08), 0 2px 4px -2px rgba(0, 0, 0, 0.05);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -4px rgba(0, 0, 0, 0.04);
}

[data-theme="dark"] {
  --clr-bg: #0b0f17;
  --clr-surface: #111827;
  --clr-surface-alt: #1a2234;
  --clr-border: #243048;
  --clr-border-hover: #334155;
  --clr-text: #f1f5f9;
  --clr-text-muted: #94a3b8;
  --clr-text-light: #64748b;

  --clr-primary: #3b82f6;
  --clr-primary-hover: #60a5fa;
  --clr-primary-subtle: rgba(59, 130, 246, 0.15);
  --clr-primary-border: rgba(59, 130, 246, 0.35);

  --clr-success: #10b981;
  --clr-success-bg: rgba(16, 185, 129, 0.12);
  --clr-success-border: rgba(16, 185, 129, 0.3);
  --clr-success-text: #34d399;

  --clr-danger: #ef4444;
  --clr-danger-bg: rgba(239, 68, 68, 0.12);
  --clr-danger-border: rgba(239, 68, 68, 0.3);
  --clr-danger-text: #f87171;

  --clr-warning: #f59e0b;
  --clr-warning-bg: rgba(245, 158, 11, 0.12);
  --clr-warning-border: rgba(245, 158, 11, 0.3);
  --clr-warning-text: #fbbf24;

  --clr-purple: #a78bfa;
  --clr-purple-bg: rgba(139, 92, 246, 0.15);
  --clr-cyan: #22d3ee;
  --clr-cyan-bg: rgba(6, 182, 212, 0.15);

  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.4);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.45);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.5);
}

body {
  font-family: var(--font-main);
  background-color: var(--clr-bg);
  color: var(--clr-text);
  overflow-x: clip;
  width: 100%;
  max-width: 100%;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  margin: 0;
  padding: 0;
  line-height: 1.5;
}

h1, h2, h3, h4, h5, h6,
.brand-title,
.section-title,
.hero-title,
.faq-section-title {
  font-family: var(--font-heading);
}

.mono, code, pre, .font-mono {
  font-family: var(--font-mono);
}

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

.tool-with-sidebar {
  display: flex;
  gap: 2rem;
  align-items: flex-start;
  width: 100%;
}

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

/* Tarjetas */
.card-main {
  background-color: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  box-shadow: var(--shadow-sm);
  margin-bottom: 2rem;
}

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

.card-title-group h2 {
  margin: 0;
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--clr-text);
}

.card-title-group p {
  margin: 0.25rem 0 0;
  font-size: 0.875rem;
  color: var(--clr-text-muted);
}

/* Barra de controles superiores */
.controls-toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  align-items: center;
}

.select-preset-wrapper {
  position: relative;
  min-width: 200px;
}

.select-custom {
  width: 100%;
  max-width: 100%;
  min-width: 0;
  appearance: none;
  background-color: var(--clr-surface-alt);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-sm);
  padding: 0.5rem 2.25rem 0.5rem 0.75rem;
  font-size: 0.85rem;
  color: var(--clr-text);
  font-family: inherit;
  cursor: pointer;
  text-overflow: ellipsis;
  white-space: nowrap;
  overflow: hidden;
  height: 40px;
  box-sizing: border-box;
}

.select-custom:focus {
  outline: none;
  border-color: var(--clr-primary);
  box-shadow: 0 0 0 3px var(--clr-primary-subtle);
}

.select-arrow-icon {
  position: absolute;
  right: 0.75rem;
  top: 50%;
  transform: translateY(-50%);
  pointer-events: none;
  color: var(--clr-text-muted);
}

/* Botones */
.btn-action {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  background-color: var(--clr-surface-alt);
  color: var(--clr-text);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-sm);
  padding: 0.5rem 0.85rem;
  font-size: 0.85rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.15s ease;
  height: 40px;
  box-sizing: border-box;
  text-decoration: none;
}

.btn-action:hover {
  background-color: var(--clr-border);
  color: var(--clr-text);
}

.btn-action-primary {
  background-color: var(--clr-primary);
  border-color: var(--clr-primary);
  color: #ffffff;
}

.btn-action-primary:hover {
  background-color: var(--clr-primary-hover);
  border-color: var(--clr-primary-hover);
  color: #ffffff;
}

.btn-action-danger {
  color: var(--clr-danger-text);
  background-color: var(--clr-danger-bg);
  border-color: var(--clr-danger-border);
}

.btn-action-danger:hover {
  background-color: var(--clr-danger);
  color: #ffffff;
}

.btn-action-success {
  background-color: var(--clr-success);
  border-color: var(--clr-success);
  color: #ffffff;
}

.btn-action-success:hover {
  filter: brightness(0.92);
}

/* Textarea de entrada */
.editor-container {
  position: relative;
  display: flex;
  flex-direction: column;
  margin-bottom: 1rem;
}

.editor-textarea {
  width: 100%;
  min-height: 140px;
  box-sizing: border-box;
  background-color: var(--clr-surface-alt);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-md);
  padding: 0.85rem 1rem;
  font-family: var(--font-mono);
  font-size: 0.875rem;
  line-height: 1.5;
  color: var(--clr-text);
  resize: vertical;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.editor-textarea:focus {
  outline: none;
  border-color: var(--clr-primary);
  box-shadow: 0 0 0 3px var(--clr-primary-subtle);
}

.editor-meta-bar {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 0.25rem 0;
  font-size: 0.775rem;
  color: var(--clr-text-muted);
}

.editor-meta-stats {
  display: flex;
  gap: 1rem;
}

/* Barra de diagnóstico y estado */
.diagnostics-panel {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin-bottom: 1.5rem;
  padding: 0.85rem 1rem;
  border-radius: var(--radius-md);
  font-size: 0.875rem;
  border: 1px solid transparent;
  transition: all 0.2s ease;
}

.diagnostics-panel.status-valid {
  background-color: var(--clr-success-bg);
  border-color: var(--clr-success-border);
  color: var(--clr-success-text);
}

.diagnostics-panel.status-error {
  background-color: var(--clr-danger-bg);
  border-color: var(--clr-danger-border);
  color: var(--clr-danger-text);
}

.diagnostics-panel.status-empty {
  background-color: var(--clr-surface-alt);
  border-color: var(--clr-border);
  color: var(--clr-text-muted);
}

.diagnostics-header {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
}

.diagnostics-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-weight: 600;
  font-size: 0.85rem;
}

.diagnostics-pills-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.metric-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  background-color: var(--clr-surface);
  border: 1px solid var(--clr-border);
  padding: 0.25rem 0.6rem;
  border-radius: 9999px;
  font-size: 0.75rem;
  font-family: var(--font-mono);
  color: var(--clr-text);
}

.error-details-box {
  background-color: rgba(239, 68, 68, 0.08);
  border-radius: var(--radius-sm);
  padding: 0.65rem 0.85rem;
  font-size: 0.825rem;
  line-height: 1.45;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.error-action-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  flex-wrap: wrap;
}

/* Pestañas de visualización */
.view-tabs-nav {
  display: flex;
  gap: 0.5rem;
  border-bottom: 2px solid var(--clr-border);
  margin-bottom: 1.25rem;
  overflow-x: auto;
  padding-bottom: 2px;
}

.tab-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  background: transparent;
  border: none;
  border-bottom: 2px solid transparent;
  margin-bottom: -2px;
  padding: 0.65rem 1rem;
  font-family: inherit;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--clr-text-muted);
  cursor: pointer;
  transition: all 0.15s ease;
  white-space: nowrap;
}

.tab-btn:hover {
  color: var(--clr-text);
}

.tab-btn.active {
  color: var(--clr-primary);
  border-bottom-color: var(--clr-primary);
}

.tab-badge {
  font-size: 0.7rem;
  background-color: var(--clr-surface-alt);
  padding: 0.15rem 0.45rem;
  border-radius: 9999px;
  border: 1px solid var(--clr-border);
}

.tab-pane {
  display: none;
}

.tab-pane.active {
  display: block;
}

/* Árbol jerárquico interactivo */
.tree-container {
  background-color: var(--clr-surface-alt);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-md);
  padding: 1rem;
  min-height: 250px;
  max-height: 600px;
  overflow-y: auto;
  font-family: var(--font-mono);
  font-size: 0.825rem;
}

.tree-toolbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.75rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--clr-border);
}

.tree-toolbar-title {
  font-size: 0.775rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--clr-text-muted);
  font-weight: 700;
}

.tree-toolbar-actions {
  display: flex;
  gap: 0.4rem;
}

.btn-tree-xs {
  background-color: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-sm);
  padding: 0.2rem 0.5rem;
  font-size: 0.725rem;
  cursor: pointer;
  color: var(--clr-text);
}

.btn-tree-xs:hover {
  border-color: var(--clr-primary);
}

.tree-root {
  list-style: none;
  padding: 0;
  margin: 0;
}

.tree-node {
  margin: 0.2rem 0;
  line-height: 1.6;
}

.tree-row {
  display: flex;
  align-items: baseline;
  gap: 0.4rem;
  padding: 0.25rem 0.4rem;
  border-radius: var(--radius-sm);
  transition: background-color 0.1s ease;
}

.tree-row:hover {
  background-color: rgba(59, 130, 246, 0.08);
}

.tree-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 18px;
  height: 18px;
  cursor: pointer;
  color: var(--clr-text-muted);
  border-radius: 3px;
  transition: transform 0.15s ease;
  user-select: none;
}

.tree-toggle.collapsed {
  transform: rotate(-90deg);
}

.tree-toggle-spacer {
  display: inline-block;
  width: 18px;
}

.tree-type-pill {
  font-size: 0.7rem;
  padding: 0.1rem 0.4rem;
  border-radius: 4px;
  font-weight: 600;
  user-select: none;
}

.type-array { background-color: var(--clr-primary-subtle); color: var(--clr-primary); border: 1px solid var(--clr-primary-border); }
.type-object { background-color: var(--clr-purple-bg); color: var(--clr-purple); border: 1px solid rgba(139, 92, 246, 0.3); }
.type-string { background-color: var(--clr-success-bg); color: var(--clr-success-text); border: 1px solid var(--clr-success-border); }
.type-integer { background-color: var(--clr-cyan-bg); color: var(--clr-cyan); border: 1px solid rgba(6, 182, 212, 0.3); }
.type-double { background-color: var(--clr-warning-bg); color: var(--clr-warning-text); border: 1px solid var(--clr-warning-border); }
.type-boolean { background-color: #fce7f3; color: #be185d; border: 1px solid #fbcfe8; }
.type-null { background-color: var(--clr-surface); color: var(--clr-text-muted); border: 1px solid var(--clr-border); }
.type-ref { background-color: #fef3c7; color: #b45309; border: 1px solid #fde68a; }

.tree-key {
  font-weight: 600;
  color: var(--clr-text);
}

.tree-colon {
  color: var(--clr-text-muted);
}

.tree-val {
  color: var(--clr-text);
  word-break: break-all;
}

.tree-val.tree-val-string {
  color: #059669;
}

.tree-val.tree-val-number {
  color: #2563eb;
}

.tree-val.tree-val-bool {
  color: #db2777;
  font-weight: 600;
}

.tree-val.tree-val-null {
  color: var(--clr-text-muted);
  font-style: italic;
}

.tree-actions-hover {
  opacity: 0;
  display: inline-flex;
  gap: 0.25rem;
  margin-left: auto;
  transition: opacity 0.15s ease;
}

.tree-row:hover .tree-actions-hover {
  opacity: 1;
}

.tree-btn-icon {
  background: transparent;
  border: none;
  cursor: pointer;
  color: var(--clr-text-muted);
  padding: 2px 4px;
  border-radius: 3px;
  display: inline-flex;
  align-items: center;
}

.tree-btn-icon:hover {
  color: var(--clr-primary);
  background-color: var(--clr-surface);
}

.tree-children {
  list-style: none;
  padding-left: 1.5rem;
  margin: 0;
  border-left: 1px dashed var(--clr-border);
}

.tree-children.collapsed {
  display: none;
}

/* Vistas de código (JSON, PHP, Serializado) */
.code-output-container {
  position: relative;
  background-color: var(--clr-surface-alt);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-md);
  padding: 1rem;
}

.code-output-actions {
  display: flex;
  justify-content: flex-end;
  gap: 0.5rem;
  margin-bottom: 0.5rem;
}

.code-output-pre {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.825rem;
  line-height: 1.6;
  max-height: 500px;
  overflow: auto;
  white-space: pre-wrap;
  word-break: break-all;
  color: var(--clr-text);
}

/* Modales personalizados (sin usar alert) */
.fijate-modal-overlay {
  position: fixed;
  inset: 0;
  background-color: rgba(0, 0, 0, 0.55);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  padding: 1rem;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease;
  backdrop-filter: blur(2px);
}

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

.fijate-modal-box {
  background-color: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-lg);
  max-width: 520px;
  width: 100%;
  padding: 1.5rem;
  box-shadow: var(--shadow-lg);
  display: flex;
  flex-direction: column;
  gap: 1rem;
  transform: translateY(10px);
  transition: transform 0.2s ease;
}

.fijate-modal-overlay.open .fijate-modal-box {
  transform: translateY(0);
}

.fijate-modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.fijate-modal-title {
  font-size: 1.15rem;
  font-weight: 700;
  margin: 0;
  color: var(--clr-text);
}

.fijate-modal-close-btn {
  background: transparent;
  border: none;
  cursor: pointer;
  color: var(--clr-text-muted);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 4px;
  border-radius: 4px;
}

.fijate-modal-close-btn:hover {
  background-color: var(--clr-surface-alt);
  color: var(--clr-text);
}

.fijate-modal-body {
  font-size: 0.875rem;
  color: var(--clr-text);
  line-height: 1.5;
}

.fijate-modal-body input[type="text"],
.fijate-modal-body textarea {
  width: 100%;
  box-sizing: border-box;
  background-color: var(--clr-surface-alt);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-sm);
  padding: 0.6rem 0.75rem;
  font-family: inherit;
  font-size: 0.875rem;
  color: var(--clr-text);
  margin-top: 0.5rem;
}

.fijate-modal-body input[type="text"]:focus,
.fijate-modal-body textarea:focus {
  outline: none;
  border-color: var(--clr-primary);
  box-shadow: 0 0 0 3px var(--clr-primary-subtle);
}

.fijate-modal-footer {
  display: flex;
  justify-content: flex-end;
  gap: 0.5rem;
  margin-top: 0.5rem;
}

/* Guía didáctica y tablas SEO */
.educational-guide-section {
  margin-top: 2.5rem;
  padding-top: 2rem;
  border-top: 1px solid var(--clr-border);
}

.guide-title {
  font-size: 1.5rem;
  font-weight: 800;
  margin: 0 0 1rem;
  color: var(--clr-text);
}

.guide-lead {
  font-size: 1rem;
  color: var(--clr-text-muted);
  line-height: 1.6;
  margin-bottom: 1.5rem;
}

.guide-cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.25rem;
  margin-bottom: 2rem;
}

.guide-card {
  background-color: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  box-shadow: var(--shadow-sm);
}

.guide-card-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  background-color: var(--clr-primary-subtle);
  color: var(--clr-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 0.75rem;
}

.guide-card-title {
  font-size: 1rem;
  font-weight: 700;
  margin: 0 0 0.5rem;
  color: var(--clr-text);
}

.guide-card-desc {
  font-size: 0.85rem;
  color: var(--clr-text-muted);
  line-height: 1.55;
  margin: 0;
}

.table-responsive-container {
  overflow-x: auto;
  margin: 1.5rem 0;
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-md);
}

.tech-spec-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.85rem;
  text-align: left;
}

.tech-spec-table th,
.tech-spec-table td {
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--clr-border);
}

.tech-spec-table th {
  background-color: var(--clr-surface-alt);
  font-weight: 700;
  color: var(--clr-text);
}

.tech-spec-table tr:last-child td {
  border-bottom: none;
}

/* Acordeón de FAQs */
.faq-section {
  margin-top: 2.5rem;
}

.faq-title {
  font-size: 1.35rem;
  font-weight: 700;
  margin-bottom: 1.25rem;
  color: var(--clr-text);
}

.faq-accordion {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.faq-item {
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-md);
  background-color: var(--clr-surface);
  overflow: hidden;
  transition: border-color 0.15s ease;
}

.faq-item[open] {
  border-color: var(--clr-primary);
}

.faq-question {
  padding: 1rem 1.25rem;
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: var(--clr-text);
  user-select: none;
}

.faq-question::-webkit-details-marker {
  display: none;
}

.faq-icon {
  transition: transform 0.2s ease;
  color: var(--clr-text-muted);
}

.faq-item[open] .faq-icon {
  transform: rotate(180deg);
  color: var(--clr-primary);
}

.faq-answer {
  padding: 0 1.25rem 1.25rem;
  font-size: 0.875rem;
  color: var(--clr-text-muted);
  line-height: 1.6;
  border-top: 1px solid var(--clr-border);
  margin-top: 0.5rem;
  padding-top: 0.75rem;
}

/* Responsividad móvil */
@media (max-width: 768px) {
  .card-header-flex {
    flex-direction: column;
    align-items: stretch;
  }

  .controls-toolbar {
    flex-direction: column;
    align-items: stretch;
  }

  .select-preset-wrapper {
    width: 100%;
  }

  .btn-action {
    width: 100%;
    justify-content: center;
  }

  .editor-meta-bar {
    flex-direction: column;
    align-items: flex-start;
  }

  .diagnostics-header {
    flex-direction: column;
    align-items: flex-start;
  }

  .view-tabs-nav {
    flex-wrap: nowrap;
    overflow-x: auto;
  }
}