/**
 * ==============================================================================
 * Limpiador de Ilustraciones Web - Hoja de Estilos Principal (style.css)
 * ==============================================================================
 * Tema en Modo Oscuro Sólido con paleta adaptada para restauración de arte.
 * Centrado en pantallas de PC. Para especificaciones consultar AGENTS.md.
 * ==============================================================================
 */

/* ──────────────────────────────────────────────────────────────────────────────
   1. VARIABLES GLOBALES Y RESET BASE
   ────────────────────────────────────────────────────────────────────────────── */

:root {
  --bg-color: #0c0c0e;
  --bg-darker: #09090b;
  --bg-hover: #121214;
  --card-bg: #141417;
  --border-color: #27272a;
  --text-color: #f4f4f5;
  --text-muted: #8b8b93;
  --primary-color: #3b82f6;
  --primary-hover: #2563eb;
  --primary-light: rgba(59, 130, 246, 0.05);
  --accent-color: #60a5fa;
  --secondary-color: #27272a;
  --secondary-hover: #3f3f46;
  --success-color: #15803d;
  --success-hover: #166534;
  --danger-color: #b91c1c;
  --danger-hover: #991b1b;
  --white: #ffffff;
  --black: #000000;
  --disabled-bg: #1e293b;
  --disabled-text: #64748b;
  --console-color: #10b981;
}

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

body {
  background-color: var(--bg-color);
  color: var(--text-color);
  font-family: "Open Sans", sans-serif;
  line-height: 1.5;
  padding-bottom: 60px;
}

/* ──────────────────────────────────────────────────────────────────────────────
   2. CONTENEDOR PRINCIPAL Y ENCABEZADO
   ────────────────────────────────────────────────────────────────────────────── */

.main-container {
  width: 1000px;
  margin: 0 auto;
  padding: 40px 10px;
}

header {
  margin-bottom: 40px;
  text-align: center;
}

header h1 {
  font-size: 32px;
  font-weight: 800;
  letter-spacing: -0.5px;
  margin-bottom: 8px;
}

.subtitle {
  font-size: 16px;
  color: var(--text-muted);
}

/* ──────────────────────────────────────────────────────────────────────────────
   3. ESTRUCTURA DE TARJETAS Y TÍTULOS DE SECCIÓN
   ────────────────────────────────────────────────────────────────────────────── */

.card {
  background-color: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 24px;
  margin-bottom: 24px;
}

.section-title-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
}

.section-title-row .section-title {
  margin-bottom: 0;
}

.section-title {
  font-size: 18px;
  font-weight: 600;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 10px;
  margin-bottom: 20px;
}

/* ──────────────────────────────────────────────────────────────────────────────
   4. SECCIÓN 1: DROPZONES DE CARGA DE IMÁGENES
   ────────────────────────────────────────────────────────────────────────────── */

.dropzones-container {
  display: flex;
  gap: 16px;
}

.dropzone {
  position: relative;
  display: flex;
  flex: 1;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 200px;
  background-color: var(--bg-darker);
  border: 2px dashed var(--border-color);
  border-radius: 8px;
  overflow: hidden;
  cursor: pointer;
  transition:
    border-color 0.2s,
    background-color 0.2s;
}

.dropzone:hover {
  background-color: var(--bg-hover);
  border-color: var(--primary-color);
}

.dropzone.dragover {
  background-color: var(--primary-light);
  border-color: var(--primary-color);
}

.file-input {
  display: none;
}

.dz-message {
  padding: 20px;
  text-align: center;
  pointer-events: none;
  z-index: 1;
}

.dz-message .icon {
  display: block;
  margin-bottom: 8px;
  color: var(--text-muted);
}

.dz-message h3 {
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 6px;
}

.dz-message p {
  font-size: 12px;
  color: var(--text-muted);
}

.dz-message button {
  margin-top: 12px;
  pointer-events: auto;
}

.dz-preview {
  position: absolute;
  top: 0;
  left: 0;
  z-index: 3;
  display: none;
  width: 100%;
  height: 100%;
  background-color: var(--black);
}

.dz-preview img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

/* ──────────────────────────────────────────────────────────────────────────────
   5. SECCIÓN 2: PANEL DE PARÁMETROS Y CONTROLES
   ────────────────────────────────────────────────────────────────────────────── */

.parameters-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.param-group {
  padding: 16px;
  background-color: var(--bg-darker);
  border: 1px solid var(--border-color);
  border-radius: 6px;
}

.param-group h3 {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-color);
  margin-bottom: 14px;
}

.group-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 14px;
}

.group-header h3 {
  margin-bottom: 0;
}

.badge {
  padding: 2px 6px;
  background-color: var(--secondary-color);
  border-radius: 4px;
  font-size: 10px;
  font-weight: 500;
  color: var(--text-muted);
}

.badge-recommended {
  padding: 3px 10px;
  background-color: rgba(16, 185, 129, 0.2);
  border: 1px solid rgba(16, 185, 129, 0.4);
  border-radius: 12px;
  font-size: 12px;
  font-weight: 600;
  color: #10b981;
}

.badge-info {
  padding: 2px 6px;
  background-color: rgba(52, 152, 219, 0.15);
  border: 1px solid rgba(52, 152, 219, 0.3);
  border-radius: 4px;
  font-size: 10px;
  font-weight: 500;
  color: #3498db;
}

.control-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  margin-bottom: 12px;
}

.control-row:last-child {
  margin-bottom: 0;
}

.control-row .checkbox-container {
  flex: 1;
  margin-bottom: 0;
}

.control-row label:not(.checkbox-container) {
  display: inline-block;
  font-size: 13px;
  color: var(--text-muted);
  white-space: nowrap;
  margin-bottom: 0;
}

.control-row select,
.control-row input[type="text"] {
  flex: 1;
  padding: 8px 12px;
  background-color: var(--secondary-color);
  border: 1px solid var(--border-color);
  border-radius: 4px;
  font-size: 13px;
  color: var(--text-color);
  outline: none;
}

.control-row select:focus,
.control-row input[type="text"]:focus {
  border-color: var(--primary-color);
}

.slider-val-container {
  display: flex;
  align-items: center;
  gap: 12px;
}

.slider-val-container input[type="range"] {
  flex: 1;
  accent-color: var(--primary-color);
}

.slider-value {
  width: 30px;
  font-family: monospace;
  font-size: 13px;
  text-align: right;
}

/* Checkbox Personalizado */
.checkbox-container {
  position: relative;
  display: flex;
  align-items: center;
  padding-left: 28px;
  font-size: 13px;
  color: var(--text-color) !important;
  cursor: pointer;
  user-select: none;
}

.checkbox-container input {
  position: absolute;
  width: 0;
  height: 0;
  opacity: 0;
  cursor: pointer;
}

.checkmark {
  position: absolute;
  top: 50%;
  left: 0;
  width: 18px;
  height: 18px;
  background-color: var(--secondary-color);
  border: 1px solid var(--border-color);
  border-radius: 4px;
  transform: translateY(-50%);
}

.checkbox-container:hover input ~ .checkmark {
  background-color: var(--secondary-hover);
}

.checkbox-container input:checked ~ .checkmark {
  background-color: var(--primary-color);
  border-color: var(--primary-color);
}

.checkmark:after {
  content: "";
  position: absolute;
  display: none;
}

.checkbox-container input:checked ~ .checkmark:after {
  display: block;
}

.checkbox-container .checkmark:after {
  top: 2px;
  left: 6px;
  width: 4px;
  height: 8px;
  border: solid var(--white);
  border-width: 0 2px 2px 0;
  transform: rotate(45deg);
}

/* ──────────────────────────────────────────────────────────────────────────────
   6. BOTONES E ICONOS VECTORIALES
   ────────────────────────────────────────────────────────────────────────────── */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 8px 16px;
  font-size: 13px;
  font-weight: 500;
  text-decoration: none;
  border: 1px solid transparent;
  border-radius: 4px;
  cursor: pointer;
  transition: background-color 0.2s;
}

.btn-sm {
  padding: 4px 10px;
  font-size: 12px;
}

.btn-large {
  padding: 12px 24px;
  font-size: 15px;
  font-weight: 600;
}

.btn-primary {
  background-color: var(--primary-color);
  color: var(--white);
}

.btn-primary:hover:not(:disabled) {
  background-color: var(--primary-hover);
}

.btn-primary:disabled {
  background-color: var(--disabled-bg);
  color: var(--disabled-text);
  cursor: not-allowed;
}

.btn-secondary {
  background-color: var(--secondary-color);
  border-color: var(--border-color);
  color: var(--text-color);
}

.btn-secondary:hover:not(:disabled) {
  background-color: var(--secondary-hover);
}

.btn-secondary:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.btn-success {
  background-color: var(--success-color);
  color: var(--white);
}

.btn-success:hover {
  background-color: var(--success-hover);
}

.btn-danger {
  background-color: var(--danger-color);
  color: var(--white);
}

.btn-danger:hover {
  background-color: var(--danger-hover);
}

.btn-remove-file {
  position: absolute;
  top: 8px;
  right: 8px;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  background-color: var(--danger-color);
  border: none;
  border-radius: 4px;
  color: var(--white);
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.5);
  cursor: pointer;
  transition:
    background-color 0.2s,
    transform 0.1s;
}

.btn-remove-file:hover {
  background-color: var(--danger-hover);
  transform: scale(1.05);
}

.btn-remove-file:active {
  transform: scale(0.95);
}

.btn-edit-mask {
  position: absolute;
  top: 8px;
  right: 44px;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  background-color: var(--primary-color);
  border: none;
  border-radius: 4px;
  color: var(--white);
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.5);
  cursor: pointer;
  transition:
    background-color 0.2s,
    transform 0.1s;
}

.btn-edit-mask:hover {
  background-color: var(--primary-hover);
  transform: scale(1.05);
}

.btn-edit-mask:active {
  transform: scale(0.95);
}

.btn-info-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  padding: 4px;
  margin-left: 6px;
  background: none;
  border: none;
  border-radius: 50%;
  color: var(--text-muted);
  cursor: pointer;
  transition:
    color 0.2s,
    background-color 0.2s,
    transform 0.15s;
}

.btn-info-icon:hover {
  background-color: rgba(59, 130, 246, 0.15);
  color: var(--accent-color);
  transform: scale(1.15);
}

.svg-icon {
  display: inline-block;
  width: 32px;
  height: 32px;
  stroke: currentColor;
  fill: none;
}

.svg-icon-sm {
  display: inline-block;
  width: 14px;
  height: 14px;
  stroke: currentColor;
  fill: none;
  vertical-align: middle;
}

.svg-icon-xs {
  width: 14px;
  height: 14px;
  fill: currentColor;
}

/* ──────────────────────────────────────────────────────────────────────────────
   7. CONSOLA WEB Y ACCIONES
   ────────────────────────────────────────────────────────────────────────────── */

.action-container {
  margin-top: 24px;
  text-align: center;
}

.console-box {
  max-height: 150px;
  padding: 12px;
  margin-top: 20px;
  background-color: var(--bg-darker);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  font-family: monospace;
  font-size: 12px;
  color: var(--console-color);
  text-align: left;
  white-space: pre-wrap;
  overflow-y: auto;
}

/* ──────────────────────────────────────────────────────────────────────────────
   8. SECCIÓN 3: VISOR DESLIZANTE CON ZOOM Y COMPARADOR
   ────────────────────────────────────────────────────────────────────────────── */

.result-actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}

.viewer-instructions {
  font-size: 12px;
  color: var(--text-muted);
  margin-bottom: 16px;
}

.compare-viewer-outer {
  width: 100%;
  background-color: var(--black);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  overflow: hidden;
}

.compare-viewer {
  position: relative;
  width: 100%;
  height: 700px;
  overflow: hidden;
  cursor: grab;
}

.compare-viewer:active {
  cursor: grabbing;
}

.viewer-pan-zoom {
  position: absolute;
  width: 100%;
  height: 100%;
  transform-origin: 0 0;
}

#img-result-before {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: contain;
  pointer-events: none;
  user-select: none;
}

#img-result-after {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: contain;
  pointer-events: none;
  user-select: none;
  clip-path: inset(0 0 0 50%);
}

.compare-handle {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 50%;
  z-index: 10;
  width: 4px;
  background-color: var(--white);
  box-shadow: 0 0 10px rgba(0, 0, 0, 0.8);
  cursor: ew-resize;
  transform: translateX(-50%);
}

.handle-line {
  width: 100%;
  height: 100%;
}

.handle-button {
  position: absolute;
  top: 50%;
  left: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background-color: var(--white);
  border-radius: 50%;
  font-size: 18px;
  font-weight: bold;
  color: var(--bg-color);
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.4);
  pointer-events: none;
  user-select: none;
  transform: translate(-50%, -50%);
  transition: transform 0.1s;
}

/* ──────────────────────────────────────────────────────────────────────────────
   9. PANTALLA DE CARGA Y MODALES GENERALES
   ────────────────────────────────────────────────────────────────────────────── */

.overlay {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100vw;
  height: 100vh;
  background-color: rgba(12, 12, 14, 0.95);
}

.loader-content {
  text-align: center;
}

.spinner {
  width: 50px;
  height: 50px;
  margin: 0 auto 20px auto;
  border: 4px solid var(--border-color);
  border-top: 4px solid var(--primary-color);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  0% {
    transform: rotate(0deg);
  }
  100% {
    transform: rotate(360deg);
  }
}

.modal {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 100;
  display: none;
  align-items: center;
  justify-content: center;
  width: 100vw;
  height: 100vh;
  background-color: rgba(12, 12, 14, 0.9);
}

.modal-content {
  display: flex;
  flex-direction: column;
  width: 900px;
  max-height: 90vh;
  background-color: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.5);
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 24px;
  border-bottom: 1px solid var(--border-color);
}

.modal-header h2 {
  font-size: 18px;
  font-weight: 600;
}

.close-modal {
  font-size: 24px;
  color: var(--text-muted);
  cursor: pointer;
}

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

.modal-body {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  padding: 20px;
  overflow-y: auto;
}

.modal-tip {
  align-self: flex-start;
  font-size: 14px;
  color: var(--text-muted);
  margin-bottom: 16px;
}

.modal-footer {
  display: flex;
  justify-content: flex-end;
  gap: 12px;
  padding: 16px 24px;
  border-top: 1px solid var(--border-color);
}

/* ──────────────────────────────────────────────────────────────────────────────
   10. MODAL DEL EDITOR DE MÁSCARA
   ────────────────────────────────────────────────────────────────────────────── */

.editor-controls {
  display: flex;
  flex-direction: column;
  gap: 12px;
  width: 100%;
  padding: 16px;
  background-color: var(--bg-darker);
  border: 1px solid var(--border-color);
  border-radius: 6px;
}

.editor-controls .control-row {
  display: flex;
  align-items: center;
  gap: 12px;
  width: 100%;
  margin-bottom: 0;
}

.editor-controls .tools-row {
  justify-content: flex-start;
}

.editor-controls #editor-clear {
  margin-left: auto;
}

.editor-controls .settings-row {
  justify-content: flex-start;
  gap: 32px;
}

.slider-group {
  display: flex;
  align-items: center;
  gap: 8px;
}

.slider-group label {
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: 0 !important;
}

.slider-group input[type="range"] {
  width: 140px;
  accent-color: var(--primary-color);
}

#editor-val-opacity,
#editor-val-brush-size {
  display: inline-block;
  font-family: monospace;
  font-size: 13px;
  color: var(--text-color);
  text-align: right;
}

#editor-val-opacity {
  width: 24px;
}

#editor-val-brush-size {
  width: 28px;
}

.slider-group .unit {
  font-size: 12px;
  color: var(--text-muted);
}

.btn-sm.active {
  background-color: var(--primary-color);
  border-color: var(--primary-color);
  color: var(--white);
}

.brush-preview-container {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  width: 50px;
  height: 50px;
  background-color: var(--bg-darker);
  border: 1px solid var(--border-color);
  border-radius: 4px;
}

.brush-preview-circle {
  background-color: rgba(255, 255, 255, 0.45);
  border: 1px solid var(--white);
  border-radius: 50%;
}

.editor-canvas-container {
  position: relative;
  width: 100%;
  height: 450px;
  background-color: var(--black);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  overflow: hidden;
  cursor: crosshair;
}

.canvas-wrapper {
  position: absolute;
  top: 0;
  left: 0;
  transform-origin: 0 0;
}

.canvas-wrapper canvas {
  display: block;
}

#editor-bg-canvas {
  position: relative;
  z-index: 1;
}

#editor-paint-canvas {
  position: absolute;
  top: 0;
  left: 0;
  z-index: 2;
  opacity: 0.55;
}

#editor-brush-cursor {
  position: absolute;
  z-index: 100;
  display: none;
  background-color: rgba(255, 255, 255, 0.25);
  border: 1px dashed var(--white);
  border-radius: 50%;
  box-shadow: 0 0 4px rgba(0, 0, 0, 0.5);
  pointer-events: none;
  transform: translate(-50%, -50%);
}

/* ──────────────────────────────────────────────────────────────────────────────
   11. MODAL DE CONFIRMACIÓN PERSONALIZADO
   ────────────────────────────────────────────────────────────────────────────── */

.confirm-modal-content {
  width: 450px;
  max-width: 90%;
  animation: confirmFadeIn 0.2s ease-out;
}

@keyframes confirmFadeIn {
  from {
    opacity: 0;
    transform: scale(0.95);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

/* ──────────────────────────────────────────────────────────────────────────────
   12. MODAL GUÍA INTEGRADA DE PARÁMETROS
   ────────────────────────────────────────────────────────────────────────────── */

.guide-modal-content {
  display: flex;
  flex-direction: column;
  max-width: 820px;
  max-height: 85vh;
}

.guide-modal-content h2 {
  font-size: 20px;
  font-weight: 700;
}

.guide-modal-body {
  max-height: 65vh;
  padding-right: 10px;
  overflow-y: auto;
}

.guide-cards-container {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.guide-category {
  padding: 18px;
  background-color: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border-color);
  border-radius: 10px;
}

.guide-category-title {
  display: flex;
  align-items: center;
  gap: 8px;
  padding-bottom: 10px;
  margin-top: 0;
  margin-bottom: 14px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  font-size: 17px;
  font-weight: 700;
  color: var(--primary-color);
}

.guide-subgroup-container {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 14px;
  margin-top: 14px;
  background-color: rgba(0, 0, 0, 0.25);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 8px;
}

.guide-subcard {
  padding: 10px;
  border-radius: 6px;
  transition: background-color 0.2s;
}

.guide-subcard-title {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 6px;
  font-size: 15px;
  color: var(--text-color);
}

.guide-subcard-divider {
  height: 1px;
  margin: 4px 0;
  background-color: rgba(255, 255, 255, 0.08);
}

.guide-card {
  padding: 16px;
  margin-bottom: 12px;
  background-color: rgba(0, 0, 0, 0.2);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  transition:
    border-color 0.2s,
    box-shadow 0.2s;
}

.guide-card:last-child {
  margin-bottom: 0;
}

.guide-card:hover {
  border-color: var(--accent-color);
}

.guide-card-highlight {
  background-color: rgba(59, 130, 246, 0.06);
  border-color: var(--accent-color) !important;
  box-shadow: 0 0 14px rgba(59, 130, 246, 0.4);
}

.guide-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 10px;
}

.guide-card-header h3 {
  margin: 0;
  font-size: 16px;
  font-weight: 600;
  color: var(--text-color);
}

.guide-desc {
  font-size: 14px;
  line-height: 1.5;
  color: var(--text-color);
  margin-bottom: 12px;
}

.guide-tags {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.tag {
  padding: 8px 12px;
  border-radius: 6px;
  font-size: 13.5px;
  line-height: 1.5;
}

.tag-pro {
  background-color: rgba(16, 185, 129, 0.1);
  border-left: 4px solid #10b981;
  color: #d1fae5;
}

.tag-con {
  background-color: rgba(245, 158, 11, 0.1);
  border-left: 4px solid #f59e0b;
  color: #fef3c7;
}

.guide-list {
  padding-left: 20px;
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--text-color);
}

.guide-list li {
  margin-bottom: 8px;
}

/* ──────────────────────────────────────────────────────────────────────────────
   13. PERSONALIZACIÓN DEL SCROLLBAR GLOBAL EN MODO OSCURO
   ────────────────────────────────────────────────────────────────────────────── */

html,
body,
* {
  scrollbar-width: auto;
  scrollbar-color: var(--border-color) var(--bg-darker);
}

::-webkit-scrollbar {
  width: 14px;
  height: 14px;
}

::-webkit-scrollbar-track {
  background: var(--bg-darker);
  border-radius: 7px;
}

::-webkit-scrollbar-thumb {
  background: var(--border-color);
  border: 3px solid var(--bg-darker);
  border-radius: 7px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--primary-color);
}