:root {
  --bg-color: #0f172a;
  --card-bg: #1e293b;
  --card-border: #334155;
  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --wine-primary: #881337;
  --wine-light: #9f1239;
  --wine-border: #be123c;
  --wine-glow: rgba(190, 18, 60, 0.25);
  --accent-color: #38bdf8;
  --accent-hover: #0284c7;
  --success-color: #10b981;
  --warning-color: #f59e0b;
  --danger-color: #ef4444;
  --surface-alt: #131c2e;
  --input-bg: #0f172a;
  --input-border: #334155;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --font-main: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-heading: 'Outfit', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.2);
  --shadow-lg: 0 12px 28px rgba(0, 0, 0, 0.35);
  --transition-fast: 0.2s ease;
}

[data-theme="light"] {
  --bg-color: #f8fafc;
  --card-bg: #ffffff;
  --card-border: #e2e8f0;
  --text-main: #0f172a;
  --text-muted: #64748b;
  --wine-primary: #881337;
  --wine-light: #9f1239;
  --wine-border: #e11d48;
  --wine-glow: rgba(225, 29, 72, 0.12);
  --accent-color: #0284c7;
  --accent-hover: #0369a1;
  --surface-alt: #f1f5f9;
  --input-bg: #ffffff;
  --input-border: #cbd5e1;
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.05);
  --shadow-lg: 0 12px 28px rgba(0, 0, 0, 0.08);
}

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

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

.brand-logo-box {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  background: linear-gradient(135deg, #881337 0%, #4c0519 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  box-shadow: 0 4px 12px rgba(136, 19, 55, 0.35);
}

.badge-regulation {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  background: rgba(136, 19, 55, 0.2);
  color: #fb7185;
  border: 1px solid rgba(251, 113, 133, 0.3);
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.25rem 0.6rem;
  border-radius: 999px;
  text-transform: none;
}

[data-theme="light"] .badge-regulation {
  background: #ffe4e6;
  color: #9f1239;
  border-color: #fecdd3;
}

.tool-layout {
  max-width: 1380px;
  margin: 1.5rem auto 3rem;
  padding: 0 1rem;
  width: 100%;
}

.tool-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.95fr;
  gap: 1.75rem;
  align-items: start;
}

@media (max-width: 1024px) {
  .tool-grid {
    grid-template-columns: 1fr;
  }
}

/* Tarjetas y contenedores */
.card-panel {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  box-shadow: var(--shadow-sm);
  margin-bottom: 1.5rem;
}

.card-title-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.25rem;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.card-title {
  font-family: var(--font-heading);
  font-size: 1.2rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--text-main);
}

/* Presets rápidos */
.preset-chips-scroll {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.65rem;
  overflow: visible;
  width: 100%;
}

@media (max-width: 900px) {
  .preset-chips-scroll {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 580px) {
  .preset-chips-scroll {
    grid-template-columns: 1fr;
  }
}

.preset-chip-btn {
  background: var(--surface-alt);
  border: 1px solid var(--card-border);
  color: var(--text-main);
  padding: 0.6rem 0.85rem;
  border-radius: var(--radius-sm);
  font-size: 0.82rem;
  font-weight: 500;
  cursor: pointer;
  white-space: normal;
  line-height: 1.3;
  transition: var(--transition-fast);
  display: flex;
  align-items: center;
  justify-content: flex-start;
  gap: 0.5rem;
  min-height: 42px;
  width: 100%;
}

.preset-chip-btn svg {
  flex-shrink: 0;
}

.preset-chip-btn:hover {
  border-color: var(--wine-border);
  background: rgba(136, 19, 55, 0.15);
  color: #fda4af;
}

[data-theme="light"] .preset-chip-btn:hover {
  background: #ffe4e6;
  border-color: #be123c;
  color: #881337;
}

.preset-chip-btn.active {
  background: var(--wine-primary);
  border-color: var(--wine-border);
  color: #ffffff;
  box-shadow: 0 2px 8px var(--wine-glow);
}

/* Formulario de parámetros */
.inputs-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.25rem;
}

@media (max-width: 640px) {
  .inputs-grid {
    grid-template-columns: 1fr;
  }
}

.field-group {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.field-label-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.field-label {
  font-size: 0.86rem;
  font-weight: 600;
  color: var(--text-main);
}

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

.input-with-unit {
  display: flex;
  align-items: center;
  background: var(--input-bg);
  border: 1px solid var(--input-border);
  border-radius: var(--radius-sm);
  padding: 0 0.75rem;
  min-height: 42px;
  transition: var(--transition-fast);
}

.input-with-unit:focus-within {
  border-color: var(--wine-border);
  box-shadow: 0 0 0 2px var(--wine-glow);
}

.input-with-unit input {
  flex: 1 1 0%;
  width: 0;
  min-width: 0;
  border: none;
  background: transparent;
  color: var(--text-main);
  font-family: var(--font-mono);
  font-size: 1rem;
  font-weight: 600;
  outline: none;
}

.unit-tag {
  color: var(--text-muted);
  font-size: 0.8rem;
  font-weight: 600;
  font-family: var(--font-mono);
  margin-left: 0.5rem;
  user-select: none;
}

.slider-sync {
  width: 100%;
  accent-color: #be123c;
  cursor: pointer;
  margin-top: 0.25rem;
}

/* Sección de aditivos */
.additive-categories {
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
}

.additive-category-box {
  background: var(--surface-alt);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-sm);
  padding: 0.85rem 1rem;
}

.category-header {
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 0.6rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.additive-checkbox-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 0.5rem;
}

.checkbox-card {
  display: flex;
  align-items: flex-start;
  gap: 0.6rem;
  padding: 0.45rem 0.65rem;
  border-radius: 6px;
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  cursor: pointer;
  transition: var(--transition-fast);
}

.checkbox-card:hover {
  border-color: var(--wine-border);
}

.checkbox-card input[type="checkbox"] {
  accent-color: #be123c;
  margin-top: 0.2rem;
  width: 17px;
  height: 17px;
  cursor: pointer;
  flex-shrink: 0;
}

.checkbox-text {
  font-size: 0.8rem;
  color: var(--text-main);
  line-height: 1.25;
}

.badge-code {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  padding: 0.1rem 0.35rem;
  border-radius: 4px;
  background: var(--input-bg);
  border: 1px solid var(--input-border);
  color: var(--accent-color);
  font-weight: 600;
  margin-left: 0.25rem;
}

.badge-allergen {
  background: rgba(239, 68, 68, 0.2);
  color: #fca5a5;
  border: 1px solid rgba(239, 68, 68, 0.4);
  font-size: 0.7rem;
  padding: 0.1rem 0.4rem;
  border-radius: 4px;
  font-weight: 700;
}

[data-theme="light"] .badge-allergen {
  background: #fee2e2;
  color: #dc2626;
  border-color: #fca5a5;
}

/* Alerta de alérgenos */
.allergen-alert-banner {
  background: rgba(239, 68, 68, 0.15);
  border: 1px solid rgba(239, 68, 68, 0.4);
  color: #fca5a5;
  padding: 0.85rem 1rem;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.84rem;
  line-height: 1.4;
  margin-top: 1rem;
}

[data-theme="light"] .allergen-alert-banner {
  background: #fef2f2;
  border-color: #fca5a5;
  color: #991b1b;
}

.allergen-alert-banner svg {
  flex-shrink: 0;
  color: #ef4444;
}

/* Pestañas del visualizador derecho */
.preview-tabs {
  display: flex;
  background: var(--surface-alt);
  padding: 0.3rem;
  border-radius: var(--radius-sm);
  gap: 0.3rem;
  margin-bottom: 1.25rem;
}

.tab-btn {
  flex: 1;
  padding: 0.6rem 0.5rem;
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-size: 0.82rem;
  font-weight: 600;
  border-radius: 6px;
  cursor: pointer;
  transition: var(--transition-fast);
  text-align: center;
  min-height: 40px;
}

.tab-btn.active {
  background: var(--card-bg);
  color: var(--text-main);
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.15);
}

/* Tarjeta de simulación de etiqueta física oficial */
.physical-label-container {
  background: #ffffff;
  color: #000000;
  border: 2px solid #000000;
  border-radius: 4px;
  padding: 1.25rem;
  font-family: Arial, Helvetica, sans-serif;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.15);
}

.label-brand-mockup {
  font-size: 1.1rem;
  font-weight: bold;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.25rem;
}

.label-denom-mockup {
  font-size: 0.8rem;
  font-style: italic;
  margin-bottom: 0.75rem;
  color: #333333;
}

.label-energy-box {
  font-family: var(--font-mono);
  font-size: 1rem;
  font-weight: 800;
  border-top: 1px solid #000000;
  border-bottom: 1px solid #000000;
  padding: 0.5rem 0;
  margin: 0.75rem 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.label-allergen-line {
  font-size: 0.85rem;
  font-weight: bold;
  margin: 0.5rem 0;
}

.label-qr-row {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-top: 0.75rem;
}

.qr-box {
  width: 90px;
  height: 90px;
  border: 1px solid #000000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 4px;
  background: #ffffff;
}

.qr-box canvas, .qr-box svg, .qr-box img {
  max-width: 100%;
  height: auto;
}

.qr-instructions {
  font-size: 0.75rem;
  line-height: 1.35;
  color: #222222;
}

/* Tabla nutricional canónica europea */
.eu-nutrition-table {
  width: 100%;
  border-collapse: collapse;
  background: #ffffff;
  color: #000000;
  font-family: Arial, Helvetica, sans-serif;
  font-size: 0.84rem;
  border: 2px solid #000000;
  border-radius: 4px;
  overflow: hidden;
}

.eu-nutrition-table th, 
.eu-nutrition-table td {
  padding: 0.45rem 0.65rem;
  border-bottom: 1px solid #d1d5db;
  text-align: left;
}

.eu-nutrition-table th {
  background: #f3f4f6;
  font-weight: bold;
  border-bottom: 2px solid #000000;
}

.eu-nutrition-table th.num-col,
.eu-nutrition-table td.num-col {
  text-align: right;
  font-family: var(--font-mono);
}

.eu-nutrition-table .sub-row td:first-child {
  padding-left: 1.5rem;
  color: #374151;
}

.eu-nutrition-table tr.total-row td {
  font-weight: bold;
  border-top: 2px solid #000000;
}

/* Maqueta del móvil para e-label */
.mobile-mockup-frame {
  background: #0f172a;
  border: 10px solid #334155;
  border-radius: 28px;
  padding: 1rem;
  max-width: 360px;
  margin: 0 auto;
  box-shadow: var(--shadow-lg);
  color: #0f172a;
}

.mobile-mockup-inner {
  background: #ffffff;
  border-radius: 18px;
  padding: 1.25rem;
  min-height: 480px;
  font-family: var(--font-main);
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.mockup-header {
  border-bottom: 1px solid #e2e8f0;
  padding-bottom: 0.75rem;
  text-align: center;
}

.mockup-wine-title {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 700;
  color: #1e293b;
}

.mockup-neutral-badge {
  font-size: 0.7rem;
  color: #64748b;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.3rem;
  margin-top: 0.25rem;
}

.mockup-ingredients-box {
  background: #f8fafc;
  border: 1px solid #e2e8f0;
  border-radius: 8px;
  padding: 0.75rem;
  font-size: 0.8rem;
  line-height: 1.4;
  color: #334155;
}

/* Gráfico de barras calóricas */
.energy-bar-container {
  margin: 1.25rem 0;
}

.energy-bar-legend {
  display: flex;
  justify-content: space-between;
  font-size: 0.78rem;
  color: var(--text-muted);
  margin-bottom: 0.4rem;
}

.energy-segmented-bar {
  height: 12px;
  border-radius: 6px;
  overflow: hidden;
  background: var(--surface-alt);
  display: flex;
}

.segment-alcohol {
  background: #881337;
}

.segment-sugar {
  background: #f59e0b;
}

.segment-acid {
  background: #10b981;
}

.segment-glycerol {
  background: #38bdf8;
}

.energy-legend-chips {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
  margin-top: 0.5rem;
  font-size: 0.75rem;
}

.legend-chip {
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

.legend-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
}

/* Botones de acción y exportación */
.actions-row {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.75rem;
  margin-top: 1.25rem;
}

.actions-row .btn-primary-wine {
  grid-column: 1 / -1;
  font-size: 0.94rem;
  padding: 0.85rem 1rem;
}

@media (max-width: 500px) {
  .actions-row {
    grid-template-columns: 1fr;
  }
  .actions-row .btn-primary-wine {
    grid-column: auto;
  }
}

.btn-primary-wine {
  background: var(--wine-primary);
  border: 1px solid var(--wine-border);
  color: #ffffff;
  padding: 0.75rem 1rem;
  border-radius: var(--radius-sm);
  font-size: 0.88rem;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  min-height: 42px;
  width: 100%;
  transition: var(--transition-fast);
}

.btn-primary-wine:hover {
  background: var(--wine-light);
  box-shadow: 0 4px 12px var(--wine-glow);
}

.btn-secondary-wine {
  background: var(--surface-alt);
  border: 1px solid var(--card-border);
  color: var(--text-main);
  padding: 0.75rem 1rem;
  border-radius: var(--radius-sm);
  font-size: 0.88rem;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  min-height: 42px;
  width: 100%;
  transition: var(--transition-fast);
}

.btn-secondary-wine:hover {
  border-color: var(--wine-border);
  color: #fda4af;
}

[data-theme="light"] .btn-secondary-wine:hover {
  border-color: var(--wine-border);
  color: #881337;
  background: #fff1f2;
}

/* Modal personalizado */
.fijate-modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.75);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  z-index: 1000;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease;
  backdrop-filter: blur(4px);
}

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

.fijate-modal-box {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-md);
  max-width: 540px;
  width: 100%;
  padding: 1.5rem;
  box-shadow: var(--shadow-lg);
  transform: translateY(12px);
  transition: transform 0.2s ease;
}

.fijate-modal-backdrop.active .fijate-modal-box {
  transform: translateY(0);
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1rem;
}

.modal-title {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 700;
}

.modal-close-btn {
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-size: 1.5rem;
  cursor: pointer;
  padding: 0.25rem;
  line-height: 1;
}

.modal-body {
  font-size: 0.9rem;
  line-height: 1.5;
  color: var(--text-main);
  margin-bottom: 1.25rem;
}

.modal-textarea {
  width: 100%;
  height: 150px;
  background: var(--input-bg);
  border: 1px solid var(--input-border);
  border-radius: var(--radius-sm);
  color: var(--text-main);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  padding: 0.75rem;
  margin-top: 0.5rem;
  resize: vertical;
}

/* Guía explicativa inferior */
.legal-notes-card {
  background: var(--surface-alt);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-md);
  padding: 1.25rem 1.5rem;
  margin-top: 2rem;
  font-size: 0.85rem;
  line-height: 1.6;
  color: var(--text-muted);
}

.legal-notes-card h3 {
  color: var(--text-main);
  font-family: var(--font-heading);
  font-size: 1rem;
  margin-bottom: 0.5rem;
}

.legal-notes-card ul {
  padding-left: 1.2rem;
  margin-top: 0.5rem;
}

.legal-notes-card li {
  margin-bottom: 0.35rem;
}

/* Tipografía canónica institucional */
h1, h2, h3, h4, h5, h6, .brand-title, .modal-title {
  font-family: var(--font-heading);
}

button, input, select, textarea {
  font-family: inherit;
}

code, pre, .badge-code, .unit-tag, .label-energy-box {
  font-family: var(--font-mono);
}

/* Selector de porción y desplegables canónicos */
.portion-selector-box {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.portion-label {
  font-size: 0.8rem;
  color: var(--text-muted);
  white-space: nowrap;
}

.form-select,
select {
  appearance: none;
  -webkit-appearance: none;
  width: 100%;
  max-width: 100%;
  min-width: 0;
  text-overflow: ellipsis;
  white-space: nowrap;
  overflow: hidden;
  background-color: #0f172a;
  color: var(--text-main);
  border: 1px solid var(--input-border);
  border-radius: var(--radius-sm);
  padding: 0.45rem 40px 0.45rem 0.75rem;
  font-size: 0.84rem;
  font-weight: 500;
  cursor: pointer;
  min-height: 40px;
  transition: var(--transition-fast);
  color-scheme: dark;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%23be123c' stroke-width='2.2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: calc(100% - 12px) center;
}

.form-select:focus,
select:focus {
  outline: none;
  border-color: var(--wine-border);
  box-shadow: 0 0 0 2px var(--wine-glow);
}

.form-select option,
select option {
  background-color: #1e293b;
  color: #f8fafc;
  padding: 10px;
}

.form-select optgroup,
select optgroup {
  background-color: #0f172a;
  color: #fda4af;
  font-weight: 700;
}

[data-theme="light"] .form-select,
[data-theme="light"] select {
  background-color: #ffffff;
  color: #0f172a;
  border-color: #cbd5e1;
  color-scheme: light;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%239f1239' stroke-width='2.2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
}

[data-theme="light"] .form-select option,
[data-theme="light"] select option {
  background-color: #ffffff;
  color: #0f172a;
}

[data-theme="light"] .form-select optgroup,
[data-theme="light"] select optgroup {
  background-color: #f1f5f9;
  color: #881337;
}

.portion-select {
  width: auto;
  min-width: 170px;
}

/* Animación de pulso luminoso en cambio de datos */
@keyframes winePulse {
  0% {
    box-shadow: 0 0 0 0 rgba(190, 18, 60, 0.6);
    border-color: #be123c;
  }
  50% {
    box-shadow: 0 0 0 10px rgba(190, 18, 60, 0);
    border-color: #fb7185;
  }
  100% {
    box-shadow: 0 0 0 0 rgba(190, 18, 60, 0);
  }
}

.highlight-pulse {
  animation: winePulse 0.85s cubic-bezier(0.25, 1, 0.5, 1);
}