/* ============================================
   Underline Style System
   Coherente con la suite de guías (look de TicketUP)
   ============================================ */

:root {
  /* Tokens de diseño base (Suite-Style) */
  --firmit-color-ink: #0b1b2b;
  --firmit-color-ink-soft: #2f4357;
  --firmit-color-ink-80: rgba(11, 27, 43, 0.8);
  --firmit-color-ink-60: rgba(11, 27, 43, 0.6);
  --firmit-color-ink-50: rgba(11, 27, 43, 0.5);
  --firmit-color-ink-40: rgba(11, 27, 43, 0.4);
  --firmit-color-border-ink-10: rgba(11, 27, 43, 0.1);
  --firmit-color-brand: #009ad6;
  --firmit-color-brand-deep: #0b3555;
  --firmit-color-sun: #f2b84b;
  --firmit-color-brand-08: rgba(0, 154, 214, 0.08);
  --firmit-color-brand-12: rgba(0, 154, 214, 0.12);
  --firmit-color-brand-18: rgba(0, 154, 214, 0.18);
  --firmit-color-brand-30: rgba(0, 154, 214, 0.3);
  --firmit-surface-paper: #f6f1e8;
  --firmit-surface-frost: rgba(255, 255, 255, 0.78);
  
  /* Alias semánticos */
  --ink: var(--firmit-color-ink);
  --ink-soft: var(--firmit-color-ink-soft);
  --ink-60: var(--firmit-color-ink-60);
  --ink-50: var(--firmit-color-ink-50);
  --ink-40: var(--firmit-color-ink-40);
  --border-ink-10: var(--firmit-color-border-ink-10);
  --brand: var(--firmit-color-brand);
  --brand-deep: var(--firmit-color-brand-deep);
  --sun: var(--firmit-color-sun);
  --brand-08: var(--firmit-color-brand-08);
  --brand-12: var(--firmit-color-brand-12);
  --brand-18: var(--firmit-color-brand-18);
  --brand-30: var(--firmit-color-brand-30);
  --paper: var(--firmit-surface-paper);
  --frost: var(--firmit-surface-frost);

  /* Tipografías */
  --font-display: "Fraunces", serif;
  --font-ui: "Sora", sans-serif;

  /* Espaciados */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;

  /* Bordes y Sombras */
  --radius-lg: 0.75rem;
  --radius-xl: 1.25rem;
  --radius-card: 1.5rem;
  --radius-full: 9999px;
  
  --shadow-card: 0 28px 60px -42px rgba(12, 34, 66, 0.45), 0 4px 10px rgba(12, 34, 66, 0.05);
  --shadow-logo: 0 12px 24px -18px rgba(11, 27, 43, 0.3);
  --shadow-button-primary: 0 16px 30px -20px var(--brand-30);

  /* Transiciones */
  --transition-fast: 0.15s ease;
  --transition-normal: 0.25s ease;
}

html[data-theme="dark"] {
  --firmit-color-ink: #e2e8f0;
  --firmit-color-ink-soft: #b9c3d4;
  --firmit-color-ink-80: rgba(226, 232, 240, 0.85);
  --firmit-color-ink-60: rgba(226, 232, 240, 0.6);
  --firmit-color-ink-50: rgba(226, 232, 240, 0.5);
  --firmit-color-ink-40: rgba(226, 232, 240, 0.4);
  --firmit-color-border-ink-10: rgba(148, 163, 184, 0.2);
  --firmit-surface-paper: #0b1220;
  --firmit-surface-frost: rgba(15, 23, 42, 0.82);
  --shadow-card: 0 30px 70px -48px rgba(0, 0, 0, 0.65), 0 4px 16px rgba(0, 0, 0, 0.15);
}

/* ============================================
   Estilos Globales
   ============================================ */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html, body {
  height: 100%;
  font-family: var(--font-ui);
  color: var(--ink);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Shell y fondos estilo TicketUP */
.app-shell {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background:
    radial-gradient(1000px 500px at 10% -10%, var(--brand-12), transparent 60%),
    radial-gradient(900px 520px at 90% 0%, rgba(242, 184, 75, 0.16), transparent 55%),
    linear-gradient(180deg, var(--paper) 0%, var(--paper) 100%);
  transition: background var(--transition-normal);
}

html[data-theme="dark"] .app-shell {
  background:
    radial-gradient(900px 500px at 10% -10%, var(--brand-18), transparent 60%),
    radial-gradient(800px 520px at 90% 0%, var(--brand-12), transparent 55%),
    linear-gradient(180deg, var(--paper) 0%, var(--paper) 100%);
}

.container {
  max-width: 32rem; /* Compacto, ideal para móvil y vista desktop esbelta */
  width: 100%;
  margin: 0 auto;
  padding-inline: var(--space-4);
  padding-top: calc(var(--space-6) + env(safe-area-inset-top, 0px));
  padding-bottom: calc(var(--space-8) + env(safe-area-inset-bottom, 0px));
  display: flex;
  flex-direction: column;
  flex: 1 1 auto;
}

/* ============================================
   Cabecera (Topbar)
   ============================================ */
.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--space-6);
  padding: var(--space-2) 0;
}

.brand {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.logoBadge {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.brandStack {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.brandTitle {
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--ink);
  line-height: 1;
}

.brandSub {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.brandVersion {
  font-size: var(--firmit-color-ink-50);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: none;
  letter-spacing: 0.05em;
  color: var(--sun);
}

.actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

/* ============================================
   Tarjetas (Cards con Glassmorphism)
   ============================================ */
.card {
  background: var(--frost);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border: 1px solid var(--border-ink-10);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-card);
  overflow: hidden;
  transition: all var(--transition-normal);
  display: flex;
  flex-direction: column;
}

.cardHeader {
  padding: var(--space-5) var(--space-6);
  border-bottom: 1px solid var(--border-ink-10);
  background: linear-gradient(135deg, var(--brand-08) 0%, transparent 100%);
}

.header-flex {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
}

.cardTitle {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 600;
  color: var(--ink);
  margin-bottom: 4px;
}

.cardSub {
  font-size: 0.825rem;
  color: var(--ink-soft);
  line-height: 1.3;
}

.cardBody {
  padding: var(--space-5) var(--space-6);
}

/* ============================================
   Elementos de Formulario
   ============================================ */
.form-group {
  margin-bottom: var(--space-4);
}

.label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--ink-soft);
  margin-bottom: var(--space-2);
  letter-spacing: 0.01em;
}

.input {
  width: 100%;
  padding: 0.85rem 1rem;
  font-family: var(--font-ui);
  font-size: 0.95rem;
  color: var(--ink);
  background: rgba(255, 255, 255, 0.5);
  border: 1px solid var(--border-ink-10);
  border-radius: var(--radius-lg);
  transition: all var(--transition-fast);
}

html[data-theme="dark"] .input {
  background: rgba(15, 23, 42, 0.4);
}

.input:focus {
  outline: none;
  border-color: var(--brand);
  background: var(--frost);
  box-shadow: 0 0 0 3px var(--brand-12);
}

/* ============================================
   Botones
   ============================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: 0.85rem 1.25rem;
  font-family: var(--font-ui);
  font-size: 0.9rem;
  font-weight: 700;
  border-radius: var(--radius-lg);
  border: none;
  cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.btn.primary {
  background: linear-gradient(135deg, var(--brand) 0%, var(--brand-deep) 100%);
  color: white;
  box-shadow: var(--shadow-button-primary);
}

.btn.primary:hover {
  transform: translateY(-1px);
  filter: brightness(1.05);
}

.btn.primary:active {
  transform: translateY(1px) scale(0.99);
}

.btn.ghost {
  background: rgba(255, 255, 255, 0.4);
  color: var(--ink);
  border: 1px solid var(--border-ink-10);
}

html[data-theme="dark"] .btn.ghost {
  background: rgba(15, 23, 42, 0.3);
}

.btn.ghost:hover {
  background: var(--brand-08);
  border-color: var(--brand-30);
}

.btn.theme-toggle-btn {
  width: 42px;
  height: 42px;
  padding: 0;
  border-radius: 50%;
  background: var(--frost);
  border: 1px solid var(--border-ink-10);
  color: var(--ink);
  box-shadow: var(--shadow-logo);
}

.btn.theme-toggle-btn:hover {
  transform: scale(1.05);
  background: var(--brand-08);
}

.theme-toggle-btn .moon-icon {
  display: none;
}

html[data-theme="dark"] .theme-toggle-btn .sun-icon {
  display: none;
}

html[data-theme="dark"] .theme-toggle-btn .moon-icon {
  display: block;
}

.w-full {
  width: 100%;
}

.font-bold {
  font-weight: 700;
}

/* ============================================
   Selector de Paletas
   ============================================ */
.palette-selector-container {
  margin-bottom: var(--space-5);
}

.palette-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-3);
  margin-top: var(--space-2);
}

@media (max-width: 400px) {
  .palette-grid {
    grid-template-columns: 1fr;
  }
}

.palette-option {
  background: rgba(255, 255, 255, 0.35);
  border: 1.5px solid var(--border-ink-10);
  border-radius: var(--radius-lg);
  padding: var(--space-3);
  cursor: pointer;
  transition: all var(--transition-fast);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  text-align: left;
  width: 100%;
}

html[data-theme="dark"] .palette-option {
  background: rgba(15, 23, 42, 0.25);
}

.palette-option:hover {
  background: var(--frost);
  border-color: var(--brand-30);
  transform: translateY(-1px);
}

.palette-option.active {
  border-color: var(--brand);
  background: var(--brand-08);
  box-shadow: 0 0 0 2px var(--brand-12);
}

.palette-option-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
}

.palette-name {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--ink);
}

.palette-check-icon {
  font-size: 0.85rem;
  color: var(--brand);
  font-weight: 700;
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.palette-option.active .palette-check-icon {
  opacity: 1;
}

.palette-colors-preview {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding-top: 2px;
}

.color-dot {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.6);
  flex-shrink: 0;
}

.color-dot.own-dot {
  width: 18px;
  height: 18px;
  border: 2px solid var(--ink-soft);
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.other-dots-row {
  display: flex;
  gap: 3px;
}

.color-dot.other-dot {
  width: 10px;
  height: 10px;
}

/* ============================================
   Zona Drag & Drop (Subida)
   ============================================ */
.upload-dropzone {
  border: 2px dashed var(--brand-30);
  background: rgba(255, 255, 255, 0.25);
  border-radius: var(--radius-xl);
  padding: var(--space-6) var(--space-4);
  text-align: center;
  cursor: pointer;
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
}

html[data-theme="dark"] .upload-dropzone {
  background: rgba(15, 23, 42, 0.15);
}

.upload-dropzone:hover,
.upload-dropzone.dragover {
  border-color: var(--brand);
  background: var(--brand-08);
  transform: scale(0.99);
}

.dropzone-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-2);
}

.upload-icon {
  color: var(--brand);
  margin-bottom: var(--space-2);
  transition: transform var(--transition-normal);
}

.upload-dropzone:hover .upload-icon {
  transform: translateY(-3px);
}

.upload-dropzone h3 {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--ink);
}

.upload-dropzone .hint {
  font-size: 0.8rem;
  color: var(--ink-soft);
}

.file-limits {
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--ink-40);
  margin-top: var(--space-2);
}

/* ============================================
   Loading State
   ============================================ */
.loading-state-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--frost);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-3);
  z-index: 10;
  animation: reveal 0.2s ease forwards;
}

.loader-spinner {
  width: 44px;
  height: 44px;
  border: 4px solid var(--brand-12);
  border-top-color: var(--brand);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

.loading-title {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--ink);
}

.loading-subtitle {
  font-size: 0.825rem;
  color: var(--ink-soft);
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* ============================================
   Insignias (Badges) y Leyenda
   ============================================ */
.Badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: var(--space-1) var(--space-3);
  font-size: 0.75rem;
  font-weight: 700;
  border-radius: var(--radius-full);
}

.Badge.variant-info {
  background: var(--brand-12);
  color: var(--brand-deep);
}

html[data-theme="dark"] .Badge.variant-info {
  background: rgba(0, 154, 214, 0.2);
  color: #38bdf8;
}

.Badge.variant-neutral {
  background: rgba(0, 0, 0, 0.05);
  color: var(--ink-soft);
  border: 1px solid var(--border-ink-10);
}

html[data-theme="dark"] .Badge.variant-neutral {
  background: rgba(255, 255, 255, 0.05);
}

.legend-box {
  margin-top: var(--space-5);
  padding-top: var(--space-4);
  border-top: 1px solid var(--border-ink-10);
}

.legend-title {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--ink-soft);
  display: block;
  margin-bottom: var(--space-2);
}

.legend-tags {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.legend-group {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  flex-wrap: wrap;
}

.legend-group-label {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--ink-50);
  width: 70px;
  flex-shrink: 0;
}

.legend-items {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
}

/* ============================================
   Resultados y Estadísticas
   ============================================ */
.results-stats-container {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  margin-bottom: var(--space-5);
}

.stats-summary-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-3);
}

.stat-card {
  background: rgba(255, 255, 255, 0.4);
  border: 1px solid var(--border-ink-10);
  border-radius: var(--radius-lg);
  padding: var(--space-4);
  text-align: center;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

html[data-theme="dark"] .stat-card {
  background: rgba(15, 23, 42, 0.3);
}

.stat-value {
  font-family: var(--font-display);
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--brand);
  line-height: 1.1;
}

.stat-label {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--ink-50);
}

.stats-breakdown-box {
  background: rgba(255, 255, 255, 0.25);
  border: 1px solid var(--border-ink-10);
  border-radius: var(--radius-lg);
  padding: var(--space-4);
}

html[data-theme="dark"] .stats-breakdown-box {
  background: rgba(15, 23, 42, 0.15);
}

.stats-breakdown-box h3 {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--ink-soft);
  margin-bottom: var(--space-3);
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.stats-badges-list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.results-actions {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

/* ============================================
   Banners de Alerta y Errores
   ============================================ */
.error-banner {
  background: rgba(220, 38, 38, 0.1);
  color: #dc2626;
  border: 1.5px solid rgba(220, 38, 38, 0.25);
  border-radius: var(--radius-lg);
  padding: 0.85rem 1rem;
  font-size: 0.825rem;
  font-weight: 600;
  margin-bottom: var(--space-4);
  line-height: 1.35;
  animation: reveal 0.2s ease forwards;
}

html[data-theme="dark"] .error-banner {
  background: rgba(239, 68, 68, 0.15);
  color: #f87171;
  border-color: rgba(239, 68, 68, 0.25);
}

/* ============================================
   Animaciones y Utilidades
   ============================================ */
.fade-in {
  animation: fadeIn 0.3s ease forwards;
}

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

@keyframes reveal {
  from { opacity: 0; }
  to { opacity: 1; }
}

/* Pie de Página */
.footerBlock {
  margin-top: var(--space-8);
  text-align: center;
  font-size: 0.725rem;
  color: var(--ink-60);
  line-height: 1.4;
}

.footerTitle {
  font-weight: 700;
  color: var(--sun);
  margin-bottom: 2px;
}

.footerDot {
  color: var(--ink-40);
  margin: 0 4px;
}

/* Nuevos estilos para la Presentación de Underline */
.neon-subtitle {
  font-family: var(--font-ui);
  font-size: 0.75rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: #4ade80; /* Verde neón tipo Underline */
  display: block;
  margin-bottom: var(--space-3);
}

.upload-card-dark {
  background: linear-gradient(180deg, rgba(30, 41, 59, 0.9) 0%, rgba(15, 23, 42, 0.95) 100%);
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-radius: var(--radius-card);
  padding: var(--space-6);
  color: white;
  text-align: left;
  position: relative;
  overflow: hidden;
  box-shadow: 0 20px 40px -10px rgba(0,0,0,0.5);
  transition: all 0.3s ease;
}

.upload-card-dark.dragover {
  border-color: var(--brand);
  background: linear-gradient(180deg, rgba(0, 154, 214, 0.1) 0%, rgba(15, 23, 42, 0.95) 100%);
  box-shadow: 0 0 0 2px var(--brand);
}

.upload-card-dark h3 {
  font-size: 1.25rem;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: var(--space-2);
}

.upload-card-dark p.desc {
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.9rem;
  line-height: 1.5;
  margin-bottom: var(--space-5);
}

.btn-upload-huge {
  background: #14b8a6; /* Color cian del botón en la imagen */
  color: white;
  font-size: 1.05rem;
  font-weight: 700;
  padding: 1rem;
  border-radius: 8px;
  width: 100%;
  border: none;
  cursor: pointer;
  transition: filter 0.2s;
  text-align: center;
}

.btn-upload-huge:hover {
  filter: brightness(1.1);
}

.status-text-area {
  margin-top: var(--space-5);
}
.status-text-area .status-title {
  color: white;
  font-weight: 700;
  font-size: 0.95rem;
  margin-bottom: 4px;
}
.status-text-area .status-hint {
  color: rgba(255, 255, 255, 0.5);
  font-size: 0.85rem;
}

.preview-box {
  background: #fdfbf7;
  border-radius: var(--radius-lg);
  padding: var(--space-4) 0;
  border: 1px solid var(--border-ink-10);
  box-shadow: 0 4px 6px rgba(0,0,0,0.02);
}

html[data-theme="dark"] .preview-box {
  background: rgba(255, 255, 255, 0.03);
  border-color: rgba(255, 255, 255, 0.05);
}

.preview-row {
  padding: var(--space-2) var(--space-5);
  font-size: 0.9rem;
  color: var(--ink);
  border-bottom: 1px solid var(--border-ink-10);
}
.preview-row:last-child {
  border-bottom: none;
}
.preview-num {
  color: var(--ink-40);
  font-weight: 600;
  margin-right: var(--space-2);
  font-variant-numeric: tabular-nums;
}
.preview-mark {
  padding: 0 4px;
  border-radius: 2px;
  font-weight: 800;
  color: #000;
}

/* Estilos básicos para la Modal de Ajustes */
.modal-dialog {
  border: none;
  background: transparent;
  padding: 0;
  margin: auto;
  border-radius: var(--radius-lg);
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
}
.modal-dialog::backdrop {
  background: rgba(15, 23, 42, 0.6);
  backdrop-filter: blur(4px);
}
.modal-dialog[open] {
  animation: modalFadeIn 0.2s ease-out;
}
@keyframes modalFadeIn {
  from { opacity: 0; transform: scale(0.95); }
  to { opacity: 1; transform: scale(1); }
}

/* Botón de la Rueca de Ajustes (Estilo TicketUP) */
.settings-rueca {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  background: transparent;
  color: var(--text-primary);
  border: 2px solid var(--brand, #009ad6);
  border-radius: 50%;
  cursor: pointer;
  transition: all 0.2s ease;
  padding: 0;
  margin-left: var(--space-2);
}
.settings-rueca:hover {
  background: var(--brand-12, rgba(0, 154, 214, 0.12));
  transform: scale(1.05);
  box-shadow: 0 0 10px rgba(0, 154, 214, 0.3);
}
.settings-rueca svg {
  width: 24px;
  height: 24px;
}