/* Asegurar que el body use las variables definidas */
body {
  background-color: var(--bg-primary);
  color: var(--text-main);
  transition: background-color 0.3s ease, color 0.3s ease;
}

/* Transición suave para todos los elementos al cambiar de tema */
body {
  transition: background-color 0.3s, color 0.3s;
}

/* Design Tokens */
:root {
  --bg-primary: #0b0f19;
  --bg-secondary: #131b2e;
  --bg-tertiary: #1e294b;
  --border-color: #2e3c60;
  --text-main: #f1f5f9;
  --text-muted: #94a3b8;
  --accent-color: #6366f1;
  /* Indigo */
  --accent-gradient: linear-gradient(135deg, #6366f1 0%, #a855f7 100%);
  --success-color: #10b981;
  --error-color: #ef4444;
  --warning-color: #f59e0b;

  --font-sans: 'Inter', sans-serif;
  --font-display: 'Outfit', sans-serif;
  --border-radius: 12px;
  --transition-smooth: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  --shadow-premium: 0 10px 30px -10px rgba(0, 0, 0, 0.5), 0 1px 1px 0 rgba(255, 255, 255, 0.05) inset;
}

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

body {
  background-color: var(--bg-primary);
  color: var(--text-main);
  font-family: var(--font-sans);
  overflow: hidden;
  height: 100vh;
}

/* App Shell Layout */
.app-container {
  display: flex;
  flex-direction: column;
  height: 100vh;
}

/* Header styling */
.app-header {
  background-color: var(--bg-secondary);
  border-bottom: 1px solid var(--border-color);
  padding: 12px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  z-index: 10;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.25);
}

.logo-area {
  display: flex;
  align-items: center;
  gap: 12px;
}

.logo-badge {
  background: var(--accent-gradient);
  color: white;
  font-weight: 800;
  font-family: var(--font-display);
  padding: 4px 8px;
  border-radius: 6px;
  font-size: 0.9rem;
  letter-spacing: 0.5px;
}

.logo-area h1 {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 700;
  letter-spacing: -0.5px;
  color: var(--text-main);
}

.gradient-text {
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.version-tag {
  font-size: 0.7rem;
  background-color: var(--bg-tertiary);
  color: var(--text-muted);
  padding: 2px 6px;
  border-radius: 4px;
}

.server-status {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.8rem;
  color: var(--text-muted);
  background-color: rgba(255, 255, 255, 0.03);
  padding: 6px 12px;
  border-radius: 30px;
  border: 1px solid rgba(255, 255, 255, 0.05);
}

.status-indicator {
  width: 8px;
  height: 8px;
  border-radius: 50%;
}

.status-indicator.online {
  background-color: var(--success-color);
  box-shadow: 0 0 10px var(--success-color);
}

/* Workspace Layout */
.workspace-layout {
  display: flex;
  flex-direction: row;
  flex: 1;
  min-height: 0;
  overflow: hidden;
  position: relative;
}

/* Sidebar Styles */
.controls-sidebar {
  background-color: var(--bg-secondary);
  border-right: 1px solid var(--border-color);
  padding: 20px;
  overflow-y: scroll;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
  scrollbar-color: var(--accent-color) rgba(255, 255, 255, 0.05);
  flex: 0 0 380px;
  width: 380px;
  min-height: 0;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

/* Barra de scroll siempre visible y con el estilo de la app (Chrome/Safari) */
.controls-sidebar::-webkit-scrollbar {
  width: 8px;
}

.controls-sidebar::-webkit-scrollbar-track {
  background: rgba(255, 255, 255, 0.03);
}

.controls-sidebar::-webkit-scrollbar-thumb {
  background-color: var(--accent-color);
  border-radius: 8px;
  border: 2px solid var(--bg-secondary);
}

.controls-sidebar::-webkit-scrollbar-thumb:hover {
  background-color: #7c7ff5;
}

.control-group {
  background-color: rgba(255, 255, 255, 0.02);
  border: 1px solid rgba(255, 255, 255, 0.04);
  border-radius: var(--border-radius);
  overflow: hidden;
  flex-shrink: 0;
  transition: var(--transition-smooth);
}

.control-group.active {
  border-color: rgba(255, 255, 255, 0.08);
}

.group-header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 16px;
  background-color: rgba(255, 255, 255, 0.01);
  border-bottom: 1px solid rgba(255, 255, 255, 0.03);
}

.step-num {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background-color: var(--bg-tertiary);
  color: var(--text-main);
  font-size: 0.75rem;
  font-weight: 700;
}

.control-group.active .step-num {
  background: var(--accent-gradient);
}

.group-header h2 {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-main);
  font-family: var(--font-display);
}

.group-content {
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

/* Form Styling */
.form-field {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-field label {
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--text-muted);
}

.required {
  color: var(--error-color);
}

.input-with-icon {
  position: relative;
  display: flex;
  align-items: center;
}

.input-with-icon i {
  position: absolute;
  left: 12px;
  width: 16px;
  height: 16px;
  color: var(--text-muted);
  pointer-events: none;
}

.input-with-icon input,
.input-with-icon select {
  width: 100%;
  padding: 10px 12px 10px 40px;
  background-color: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  color: var(--text-main);
  font-family: var(--font-sans);
  font-size: 0.85rem;
  outline: none;
  transition: var(--transition-smooth);
}

.input-with-icon input:focus,
.input-with-icon select:focus {
  border-color: var(--accent-color);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.15);
}

/* Technique Selection Cards */
.technique-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
}

.technique-card {
  cursor: pointer;
}

.technique-card input[type="radio"] {
  display: none;
}

.card-inner {
  background-color: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 10px 6px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  transition: var(--transition-smooth);
}

.tech-icon {
  width: 20px;
  height: 20px;
  color: var(--text-muted);
  margin-bottom: 6px;
  transition: var(--transition-smooth);
}

.card-inner span {
  font-size: 0.75rem;
  font-weight: 600;
  display: block;
  margin-bottom: 2px;
}

.card-inner small {
  font-size: 0.6rem;
  color: var(--text-muted);
  line-height: 1.1;
}

/* Checked Card */
.technique-card input[type="radio"]:checked+.card-inner {
  border-color: var(--accent-color);
  background-color: rgba(99, 102, 241, 0.08);
  box-shadow: 0 0 12px rgba(99, 102, 241, 0.1);
}

.technique-card input[type="radio"]:checked+.card-inner .tech-icon {
  color: var(--accent-color);
  transform: scale(1.1);
}

/* Custom Size Fields */
.custom-size-fields {
  display: flex;
  gap: 12px;
  background-color: rgba(255, 255, 255, 0.01);
  padding: 10px;
  border-radius: 8px;
  border: 1px dashed var(--border-color);
}

.form-field-half {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.form-field-half label {
  font-size: 0.75rem;
  color: var(--text-muted);
}

.form-field-half input {
  width: 100%;
  padding: 8px;
  background-color: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  color: var(--text-main);
  font-size: 0.8rem;
  outline: none;
}

.form-field-half input:focus {
  border-color: var(--accent-color);
}

.hidden {
  display: none !important;
}

/* File Upload Area */
.upload-area {
  border: 2px dashed var(--border-color);
  border-radius: var(--border-radius);
  padding: 18px;
  text-align: center;
  cursor: pointer;
  background-color: rgba(255, 255, 255, 0.01);
  transition: var(--transition-smooth);
}

.upload-area:hover {
  border-color: var(--accent-color);
  background-color: rgba(99, 102, 241, 0.03);
}

.upload-icon {
  width: 32px;
  height: 32px;
  color: var(--text-muted);
  margin-bottom: 8px;
}

.upload-area p {
  font-size: 0.8rem;
  font-weight: 500;
  margin-bottom: 4px;
}

.upload-area p span {
  color: var(--accent-color);
  font-weight: 600;
}

.upload-sub {
  font-size: 0.65rem;
  color: var(--text-muted);
  display: block;
}

/* Catalog Assets */
.catalog-area {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-top: 6px;
}

.catalog-area label {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-muted);
}

.catalog-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
}

.catalog-item {
  border: 1px solid var(--border-color);
  background-color: var(--bg-primary);
  border-radius: 8px;
  padding: 6px;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  transition: var(--transition-smooth);
}

.catalog-item:hover {
  border-color: var(--accent-color);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.catalog-item img {
  width: 100%;
  aspect-ratio: 1;
  object-fit: contain;
  background-color: rgba(255, 255, 255, 0.02);
  border-radius: 4px;
}

.item-title {
  font-size: 0.65rem;
  font-weight: 500;
  color: var(--text-muted);
}

/* Textarea & Buttons */
textarea {
  width: 100%;
  padding: 10px;
  background-color: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  color: var(--text-main);
  font-family: var(--font-sans);
  font-size: 0.85rem;
  outline: none;
  resize: vertical;
  transition: var(--transition-smooth);
}

textarea:focus {
  border-color: var(--accent-color);
}

.btn-primary {
  background: var(--accent-gradient);
  color: white;
  border: none;
  border-radius: 8px;
  padding: 12px 20px;
  font-size: 0.95rem;
  font-weight: 600;
  font-family: var(--font-display);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  box-shadow: var(--shadow-premium);
  transition: var(--transition-smooth);
  width: 100%;
}

.btn-primary:hover {
  filter: brightness(1.1);
  transform: translateY(-1px);
}

.btn-primary:active {
  transform: translateY(0);
}

.btn-primary i {
  width: 18px;
  height: 18px;
}

/* Canvas Editor Area */
.canvas-workspace {
  background-color: #080c14;
  display: flex;
  flex-direction: column;
  flex: 1;
  min-width: 0;
  overflow: hidden;
  min-height: 0;
  position: relative;
}

/* Toolbar */
.canvas-toolbar {
  background-color: var(--bg-secondary);
  border-bottom: 1px solid var(--border-color);
  padding: 8px 16px;
  display: flex;
  align-items: center;
  gap: 12px;
  z-index: 5;
}

.tool-group {
  display: flex;
  gap: 6px;
}

.tool-btn {
  background-color: var(--bg-primary);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  padding: 6px 10px;
  border-radius: 6px;
  font-size: 0.75rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 6px;
  transition: var(--transition-smooth);
}

.tool-btn:hover {
  background-color: var(--bg-tertiary);
  border-color: var(--accent-color);
}

.tool-btn i {
  width: 14px;
  height: 14px;
}

.tool-btn.danger {
  color: #fca5a5;
  border-color: rgba(239, 68, 68, 0.3);
}

.tool-btn.danger:hover {
  background-color: rgba(239, 68, 68, 0.1);
  border-color: var(--error-color);
}

.divider {
  width: 1px;
  height: 20px;
  background-color: var(--border-color);
}

.status-summary {
  margin-left: auto;
  font-size: 0.8rem;
  color: var(--text-muted);
  display: flex;
  gap: 16px;
}

.status-summary strong {
  color: var(--text-main);
}

/* Viewport & Canvas centering */
.canvas-viewport {
  flex: 1;
  min-height: 0;
  position: relative;
  overflow: auto;
  display: grid;
  grid-template-columns: 24px 1fr;
  grid-template-rows: 24px 1fr;
  background-image:
    radial-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    radial-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 20px 20px;
  background-position: 0 0, 10px 10px;
}

.canvas-wrapper {
  grid-column: 2;
  grid-row: 2;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 40px;
  overflow: visible;
  position: relative;
}

/* Rulers */
.ruler-corner {
  grid-column: 1;
  grid-row: 1;
  background-color: var(--bg-secondary);
  border-right: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
  position: sticky;
  top: 0;
  left: 0;
  z-index: 4;
}

.ruler {
  background-color: var(--bg-secondary);
  color: var(--text-muted);
  font-size: 8px;
  font-family: monospace;
  position: sticky;
  z-index: 3;
}

.ruler-horizontal {
  grid-column: 2;
  grid-row: 1;
  height: 24px;
  border-bottom: 1px solid var(--border-color);
  top: 0;
  display: flex;
  overflow: hidden;
  position: relative;
}

.ruler-vertical {
  grid-column: 1;
  grid-row: 2;
  width: 24px;
  border-right: 1px solid var(--border-color);
  left: 0;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  position: relative;
}

/* Estilos de Marcas de las Reglas (Ticks) */
.tick-major {
  position: absolute;
  bottom: 0;
  width: 1px;
  height: 10px;
  background-color: var(--text-muted);
}

.tick-major span {
  position: absolute;
  bottom: 12px;
  transform: translateX(-50%);
  font-size: 8px;
  color: var(--text-muted);
  font-weight: 600;
}

.tick-minor {
  position: absolute;
  bottom: 0;
  width: 1px;
  height: 5px;
  background-color: var(--border-color);
}

.tick-major-y {
  position: absolute;
  right: 0;
  height: 1px;
  width: 10px;
  background-color: var(--text-muted);
}

.tick-major-y span {
  position: absolute;
  right: 12px;
  transform: translateY(-50%);
  font-size: 8px;
  color: var(--text-muted);
  font-weight: 600;
}

.tick-minor-y {
  position: absolute;
  right: 0;
  height: 1px;
  width: 5px;
  background-color: var(--border-color);
}

/* CSS Grid Rules in Javascript will inject tick bars here */

/* Fabric canvas wrapper enhancement */
.canvas-container {
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.6);
  border: 1px solid #334155;
  background-color: #121824;
}

.info-bar {
  background-color: var(--bg-secondary);
  border-top: 1px solid var(--border-color);
  padding: 10px 20px;
  font-size: 0.75rem;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 8px;
}

.info-bar i {
  width: 14px;
  height: 14px;
  color: var(--accent-color);
}

/* Right Object Inspector Sidepanel */
.inspector-sidebar {
  position: absolute;
  top: 60px;
  right: 20px;
  width: 260px;
  background-color: rgba(19, 27, 46, 0.95);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-premium);
  backdrop-filter: blur(12px);
  z-index: 8;
  transform: translateX(300px);
  opacity: 0;
  pointer-events: none;
  transition: var(--transition-smooth);
}

.inspector-sidebar.active {
  transform: translateX(0);
  opacity: 1;
  pointer-events: all;
}

.inspector-header {
  padding: 12px 16px;
  border-bottom: 1px solid var(--border-color);
}

.inspector-header h3 {
  font-size: 0.85rem;
  font-weight: 600;
  font-family: var(--font-display);
  display: flex;
  align-items: center;
  gap: 8px;
}

.inspector-header h3 i {
  width: 14px;
  height: 14px;
  color: var(--accent-color);
}

.inspector-content {
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.dimension-inputs {
  display: flex;
  gap: 10px;
}

.dimension-input-box {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.dimension-input-box label {
  font-size: 0.7rem;
  color: var(--text-muted);
}

.input-unit {
  position: relative;
  display: flex;
  align-items: center;
}

.input-unit input {
  width: 100%;
  padding: 8px 30px 8px 8px;
  background-color: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  color: var(--text-main);
  font-size: 0.8rem;
  outline: none;
}

.input-unit input:focus {
  border-color: var(--accent-color);
}

.input-unit span {
  position: absolute;
  right: 8px;
  font-size: 0.7rem;
  color: var(--text-muted);
}

.lock-proportions-container {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 6px;
}

/* Toggle Switch */
.toggle-switch {
  position: relative;
  display: inline-block;
  width: 32px;
  height: 18px;
}

.toggle-switch input {
  opacity: 0;
  width: 0;
  height: 0;
}

.slider {
  position: absolute;
  cursor: pointer;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: var(--bg-tertiary);
  transition: .4s;
  border-radius: 34px;
}

.slider:before {
  position: absolute;
  content: "";
  height: 12px;
  width: 12px;
  left: 3px;
  bottom: 3px;
  background-color: white;
  transition: .4s;
  border-radius: 50%;
}

.toggle-switch input:checked+.slider {
  background-color: var(--accent-color);
}

.toggle-switch input:checked+.slider:before {
  transform: translateX(14px);
}

.toggle-label {
  font-size: 0.75rem;
  color: var(--text-muted);
}

.inspector-actions {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.btn-secondary,
.btn-danger {
  padding: 8px 12px;
  border-radius: 6px;
  font-size: 0.8rem;
  font-weight: 500;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  transition: var(--transition-smooth);
}

.btn-secondary {
  background-color: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  color: var(--text-main);
}

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

.btn-danger {
  background-color: rgba(239, 68, 68, 0.15);
  border: 1px solid rgba(239, 68, 68, 0.3);
  color: #fca5a5;
}

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

/* Modal Overlay Styling */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background-color: rgba(11, 15, 25, 0.85);
  backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
  transition: var(--transition-smooth);
}

.modal-card {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  padding: 32px;
  border-radius: 16px;
  max-width: 420px;
  width: 90%;
  text-align: center;
  box-shadow: var(--shadow-premium);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
}

.modal-loader {
  border: 4px solid var(--bg-tertiary);
  border-top: 4px solid var(--accent-color);
  border-radius: 50%;
  width: 48px;
  height: 48px;
  animation: spin 1s linear infinite;
}

.modal-icon {
  font-size: 48px;
}

.modal-icon.success {
  color: var(--success-color);
}

.modal-icon.error {
  color: var(--error-color);
}

.modal-icon i {
  width: 48px;
  height: 48px;
}

.modal-card h3 {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 700;
}

.modal-card p {
  color: var(--text-muted);
  font-size: 0.85rem;
  line-height: 1.5;
}

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

  100% {
    transform: rotate(360deg);
  }
}

/* Botón de Toggle de Tema */
.theme-toggle-btn {
  background-color: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-color);
  color: var(--text-muted);
  width: 32px;
  height: 32px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  margin-left: 4px;
  transition: var(--transition-smooth);
}

.theme-toggle-btn:hover {
  border-color: var(--accent-color);
  color: var(--accent-color);
  background-color: rgba(99, 102, 241, 0.08);
}

.theme-toggle-btn i {
  width: 16px;
  height: 16px;
}

/* Modo Claro */
body.light-mode {
  --bg-primary: #f8fafc;
  --bg-secondary: #ffffff;
  --bg-tertiary: #e2e8f0;
  --border-color: #cbd5e1;
  --text-main: #0f172a;
  --text-muted: #64748b;
}

body.light-mode .canvas-workspace {
  background-color: #e9edf3;
}

body.light-mode .canvas-container {
  background-color: #ffffff;
  border-color: #cbd5e1;
}

body,
.control-group,
.tool-btn,
.card-inner,
.catalog-item,
.input-with-icon input,
.input-with-icon select,
textarea {
  transition: background-color 0.25s ease, color 0.25s ease, border-color 0.25s ease;
}

/* ============================================= */
/* Responsive: Tablet / iPad                      */
/* ============================================= */

/* iPad en horizontal y pantallas medianas: achicamos el sidebar en vez de apilar */
@media (max-width: 1100px) {
  .controls-sidebar {
    flex: 0 0 320px;
    width: 320px;
    padding: 16px;
  }

  .technique-cards {
    gap: 6px;
  }

  .inspector-sidebar {
    width: 230px;
    right: 12px;
  }
}

/* iPad en vertical / pantallas angostas: apilamos sidebar arriba y lienzo abajo, 
   y dejamos que la página entera scrollee en vez de bloquear la altura */
@media (max-width: 820px) {

  html,
  body {
    height: auto;
    min-height: 100vh;
    overflow-y: auto;
  }

  .app-container {
    height: auto;
    min-height: 100vh;
  }

  .workspace-layout {
    flex-direction: column;
    overflow: visible;
  }

  .controls-sidebar {
    flex: none;
    width: 100%;
    max-height: 60vh;
    border-right: none;
    border-bottom: 1px solid var(--border-color);
  }

  .canvas-workspace {
    flex: none;
    min-height: 60vh;
  }

  .inspector-sidebar {
    top: auto;
    bottom: 12px;
    right: 12px;
    left: 12px;
    width: auto;
  }
}

/* Pantallas muy angostas (teléfono, o iPad partido en dos apps) */
@media (max-width: 480px) {
  .app-header {
    padding: 10px 14px;
    flex-wrap: wrap;
    gap: 8px;
  }

  .logo-area h1 {
    font-size: 1.1rem;
  }

  .technique-cards {
    grid-template-columns: repeat(2, 1fr);
  }

  .catalog-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* Mejorar targets táctiles en dispositivos touch (iPad/tablet) */
@media (hover: none) and (pointer: coarse) {

  .tool-btn,
  .btn-primary,
  .btn-secondary,
  .btn-danger,
  .theme-toggle-btn,
  .catalog-item,
  .technique-card .card-inner {
    min-height: 44px;
  }

  .upload-area {
    padding: 24px 18px;
  }
}