:root {
  /* Paleta de Colores en Modo Oscuro (Estilo GitHub / Kasnia Project) */
  --color-bg: #0d1117;
  --color-bg-subtle: #161b22;
  --color-card: #1c2128;
  --color-card-border: #30363d;
  --color-card-hover: #22272e;

  --color-text-main: #f0f6fc;
  --color-text-muted: #8b949e;
  --color-text-secondary: #c9d1d9;

  /* Color de Acento Kasnia */
  --color-accent: #ff9ac5;
  --color-accent-hover: #ffb5d5;
  --color-accent-active: #f383b2;
  --color-accent-dim: rgba(255, 154, 197, 0.12);
  --color-accent-border: rgba(255, 154, 197, 0.35);
  --color-accent-glow: rgba(255, 154, 197, 0.25);
  --color-accent-text-contrast: #180912;

  /* Estados y Alertas */
  --color-success: #3fb950;
  --color-success-bg: rgba(63, 185, 80, 0.15);
  --color-success-border: rgba(63, 185, 80, 0.4);

  --color-warning: #d29922;
  --color-warning-bg: rgba(210, 153, 34, 0.15);
  --color-warning-border: rgba(210, 153, 34, 0.4);

  --color-danger: #f85149;
  --color-danger-bg: rgba(248, 81, 73, 0.15);
  --color-danger-border: rgba(248, 81, 73, 0.4);

  --color-info: #58a6ff;
  --color-info-bg: rgba(88, 166, 255, 0.12);
  --color-info-border: rgba(88, 166, 255, 0.35);

  --color-purple: #bc8cff;
  --color-purple-bg: rgba(188, 140, 255, 0.15);
  --color-purple-border: rgba(188, 140, 255, 0.35);

  /* Medidas y Espaciados Reutilizables */
  --measure-container-max: 940px;
  --measure-radius-sm: 8px;
  --measure-radius-md: 14px;
  --measure-radius-lg: 20px;
  --measure-radius-full: 9999px;

  --measure-space-xs: 0.375rem;
  --measure-space-sm: 0.75rem;
  --measure-space-md: 1.25rem;
  --measure-space-lg: 1.75rem;
  --measure-space-xl: 2.5rem;

  --measure-input-height: 48px;
  --measure-btn-height: 46px;

  /* Tipografía */
  --font-family-base: "Open Sans", sans-serif;
  --font-family-mono:
    ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, "Liberation Mono",
    monospace;

  --shadow-card: 0 8px 24px rgba(0, 0, 0, 0.4);
  --shadow-accent: 0 4px 20px var(--color-accent-glow);
  --transition-fast: 0.2s ease;
}

/* Reset y Base */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  background-color: var(--color-bg);
  color: var(--color-text-main);
  font-family: var(--font-family-base);
  line-height: 1.6;
  min-height: 100vh;
  padding: var(--measure-space-md);
  display: flex;
  flex-direction: column;
  align-items: center;
  overflow-x: hidden;
}

/* Contenedor Principal Fluido (Sin Media Queries ni Clamp) */
.app-container {
  width: 100%;
  max-width: var(--measure-container-max);
  display: flex;
  flex-direction: column;
  gap: var(--measure-space-lg);
  margin: 0 auto;
}

/* Encabezado */
.header {
  text-align: center;
  padding: var(--measure-space-lg) var(--measure-space-sm)
    var(--measure-space-sm);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--measure-space-xs);
}

.header-badge {
  background-color: var(--color-accent-dim);
  color: var(--color-accent);
  border: 1px solid var(--color-accent-border);
  padding: var(--measure-space-xs) var(--measure-space-sm);
  border-radius: var(--measure-radius-full);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

.header-title {
  font-size: 2.1rem;
  font-weight: 800;
  color: var(--color-text-main);
  letter-spacing: -0.02em;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.header-title span {
  color: var(--color-accent);
}

.header-subtitle {
  color: var(--color-text-muted);
  font-size: 0.95rem;
  max-width: 680px;
}

/* Tarjetas Genéricas */
.card {
  background-color: var(--color-card);
  border: 1px solid var(--color-card-border);
  border-radius: var(--measure-radius-md);
  padding: var(--measure-space-md);
  box-shadow: var(--shadow-card);
}

.card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--measure-space-sm);
  flex-wrap: wrap;
  margin-bottom: var(--measure-space-xs);
}

.card-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--color-text-main);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.card-title svg {
  color: var(--color-accent);
  flex-shrink: 0;
}

.card-subtitle {
  color: var(--color-text-muted);
  font-size: 0.88rem;
  margin-bottom: var(--measure-space-md);
}

.card-subtitle code {
  background-color: var(--color-bg-subtle);
  color: var(--color-accent);
  padding: 0.15rem 0.4rem;
  border-radius: 4px;
  font-family: var(--font-family-mono);
  font-size: 0.85rem;
}

.card-badge {
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.2rem 0.6rem;
  border-radius: var(--measure-radius-full);
  background-color: var(--color-bg-subtle);
  color: var(--color-text-muted);
  border: 1px solid var(--color-card-border);
}

.card-badge.ready {
  background-color: var(--color-success-bg);
  color: var(--color-success);
  border-color: var(--color-success-border);
}

/* Grilla de Subida Dual (Flexbox fluido sin media-queries) */
.upload-grid {
  display: flex;
  flex-wrap: wrap;
  gap: var(--measure-space-md);
  width: 100%;
}

.upload-card {
  flex: 1 1 380px;
  min-width: 280px;
  display: flex;
  flex-direction: column;
}

/* Zona Drag & Drop */
.dropzone {
  border: 2px dashed var(--color-card-border);
  border-radius: var(--measure-radius-sm);
  padding: var(--measure-space-lg) var(--measure-space-md);
  text-align: center;
  cursor: pointer;
  transition: all var(--transition-fast);
  background-color: var(--color-bg-subtle);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--measure-space-xs);
  flex: 1;
}

.dropzone:hover,
.dropzone.dragover {
  border-color: var(--color-accent);
  background-color: var(--color-accent-dim);
}

.dropzone-icon {
  color: var(--color-accent);
  margin-bottom: var(--measure-space-xs);
}

.dropzone-text {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--color-text-main);
}

.dropzone-subtext {
  font-size: 0.8rem;
  color: var(--color-text-muted);
}

.file-input-hidden {
  display: none;
}

/* Barra de Archivo Cargado */
.loaded-file-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--measure-space-sm);
  padding: var(--measure-space-sm) var(--measure-space-md);
  background-color: var(--color-bg-subtle);
  border: 1px solid var(--color-card-border);
  border-radius: var(--measure-radius-sm);
  flex: 1;
}

.file-meta {
  display: flex;
  align-items: center;
  gap: var(--measure-space-sm);
  overflow: hidden;
}

.file-icon {
  color: var(--color-accent);
  background-color: var(--color-accent-dim);
  padding: 0.5rem;
  border-radius: var(--measure-radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.file-info-col {
  overflow: hidden;
}

.file-name {
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--color-text-main);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 260px;
}

.file-status-sub {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.75rem;
  color: var(--color-text-muted);
}

.file-badge-ready {
  color: var(--color-success);
  font-weight: 600;
}

.file-remove-btn {
  background: none;
  border: none;
  color: var(--color-text-muted);
  cursor: pointer;
  padding: 0.4rem;
  border-radius: var(--measure-radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
  flex-shrink: 0;
}

.file-remove-btn:hover {
  background-color: var(--color-card-border);
  color: var(--color-text-main);
}

/* Tarjeta Diagnóstico de Word (settings.xml) */
.settings-diag-card {
  border-color: rgba(88, 166, 255, 0.3);
  background: linear-gradient(
    180deg,
    rgba(88, 166, 255, 0.05) 0%,
    var(--color-card) 100%
  );
}

.settings-diag-grid {
  display: flex;
  flex-wrap: wrap;
  gap: var(--measure-space-md);
  margin-top: 1em;
}

.diag-item {
  flex: 1 1 260px;
  background-color: var(--color-bg-subtle);
  border: 1px solid var(--color-card-border);
  border-radius: var(--measure-radius-sm);
  padding: var(--measure-space-sm) var(--measure-space-md);
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}

.diag-label {
  font-family: var(--font-family-mono);
  font-size: 0.8rem;
  color: var(--color-text-muted);
}

.diag-val {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--color-text-main);
}

.diag-val.good {
  color: var(--color-success);
}

.diag-val.warning {
  color: var(--color-warning);
}

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

/* Sección de Acciones y Progreso */
.action-section {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--measure-space-md);
  width: 100%;
}

.btn-primary {
  background-color: var(--color-accent);
  color: var(--color-accent-text-contrast);
  border: none;
  border-radius: var(--measure-radius-md);
  padding: 0 var(--measure-space-xl);
  height: var(--measure-btn-height);
  font-size: 1.05rem;
  font-weight: 700;
  font-family: var(--font-family-base);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  box-shadow: var(--shadow-accent);
  transition: all var(--transition-fast);
  width: 100%;
  max-width: 380px;
}

.btn-primary:hover:not(:disabled) {
  background-color: var(--color-accent-hover);
  transform: translateY(-1px);
}

.btn-primary:disabled {
  opacity: 0.45;
  cursor: not-allowed;
  box-shadow: none;
}

.progress-box {
  width: 100%;
  max-width: 500px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.4rem;
}

.progress-bar-bg {
  width: 100%;
  height: 8px;
  background-color: var(--color-bg-subtle);
  border: 1px solid var(--color-card-border);
  border-radius: var(--measure-radius-full);
  overflow: hidden;
}

.progress-bar-fill {
  width: 0%;
  height: 100%;
  background: linear-gradient(90deg, var(--color-accent), #58a6ff);
  border-radius: var(--measure-radius-full);
  transition: width 0.25s ease;
}

.progress-text {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  text-align: center;
}

/* Tarjeta de Resultados */
.results-card {
  display: flex;
  flex-direction: column;
  gap: var(--measure-space-md);
}

.results-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: var(--measure-space-md);
  flex-wrap: wrap;
}

.results-top-actions {
  display: flex;
  gap: var(--measure-space-xs);
  flex-wrap: wrap;
}

/* Botones auxiliares */
.btn-outline-sm,
.btn-success-sm,
.btn-xs {
  border-radius: var(--measure-radius-sm);
  font-size: 0.82rem;
  font-weight: 600;
  font-family: var(--font-family-base);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  transition: all var(--transition-fast);
  padding: 0.4rem 0.8rem;
}

.btn-outline-sm {
  background-color: var(--color-bg-subtle);
  color: var(--color-text-main);
  border: 1px solid var(--color-card-border);
}

.btn-outline-sm:hover {
  background-color: var(--color-card-hover);
  border-color: var(--color-text-muted);
}

.btn-success-sm {
  background-color: var(--color-success);
  color: #0c2010;
  border: none;
}

.btn-success-sm:hover {
  background-color: #4cd461;
}

.btn-xs {
  background-color: transparent;
  color: var(--color-text-muted);
  border: 1px solid var(--color-card-border);
  padding: 0.25rem 0.55rem;
  font-size: 0.75rem;
}

.btn-xs:hover {
  color: var(--color-text-main);
  background-color: var(--color-card-hover);
}

/* Botón de Éxito Grande */
.btn-success {
  background-color: var(--color-success);
  color: #0c2010;
  border: none;
  border-radius: var(--measure-radius-md);
  padding: 0 var(--measure-space-lg);
  height: var(--measure-btn-height);
  font-size: 1rem;
  font-weight: 700;
  font-family: var(--font-family-base);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  transition: all var(--transition-fast);
  flex-shrink: 0;
}

.btn-success:hover {
  background-color: #4cd461;
  transform: translateY(-1px);
}

/* Cuadrícula de Estadísticas Rápidas (Grid sin media-queries) */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
  gap: var(--measure-space-sm);
  width: 100%;
}

.stat-card {
  background-color: var(--color-bg-subtle);
  border: 1px solid var(--color-card-border);
  border-radius: var(--measure-radius-sm);
  padding: var(--measure-space-sm) var(--measure-space-md);
  text-align: center;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
}

.stat-num {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--color-text-main);
  line-height: 1.2;
}

.stat-danger-num {
  color: var(--color-danger);
}

.stat-success-num {
  color: var(--color-success);
}

.stat-lbl {
  font-size: 0.75rem;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  font-weight: 600;
  margin-top: 0.2rem;
}

.stat-card.stat-alert {
  border-color: var(--color-danger-border);
  background-color: var(--color-danger-bg);
}

/* Barra de Filtros y Selección Múltiple */
.filter-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--measure-space-sm);
  flex-wrap: wrap;
  padding-bottom: var(--measure-space-xs);
  border-bottom: 1px solid var(--color-card-border);
}

.filter-tabs {
  display: flex;
  gap: 0.35rem;
  flex-wrap: wrap;
}

.tab-btn {
  background-color: transparent;
  color: var(--color-text-muted);
  border: 1px solid transparent;
  border-radius: var(--measure-radius-full);
  padding: 0.3rem 0.75rem;
  font-size: 0.8rem;
  font-weight: 600;
  font-family: var(--font-family-base);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.tab-btn:hover {
  color: var(--color-text-main);
  background-color: var(--color-bg-subtle);
}

.tab-btn.active {
  background-color: var(--color-accent-dim);
  color: var(--color-accent);
  border-color: var(--color-accent-border);
}

.bulk-selection {
  display: flex;
  gap: 0.3rem;
  flex-wrap: wrap;
}

/* Lista de Imágenes Auditadas */
.image-audit-list {
  display: flex;
  flex-direction: column;
  gap: var(--measure-space-sm);
  width: 100%;
}

.image-audit-item {
  background-color: var(--color-bg-subtle);
  border: 1px solid var(--color-card-border);
  border-radius: var(--measure-radius-sm);
  padding: var(--measure-space-sm) var(--measure-space-md);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--measure-space-md);
  flex-wrap: wrap;
  transition: all var(--transition-fast);
}

.image-audit-item:hover {
  background-color: var(--color-card-hover);
  border-color: rgba(255, 255, 255, 0.15);
}

.image-audit-item.degraded-item {
  border-left: 4px solid var(--color-danger);
}

.image-audit-item.recompressed-item {
  border-left: 4px solid var(--color-warning);
}

.image-audit-item.ok-item {
  border-left: 4px solid var(--color-success);
}

.image-audit-item.unmatched-item {
  border-left: 4px solid var(--color-text-muted);
}

.item-left {
  display: flex;
  align-items: center;
  gap: var(--measure-space-sm);
  flex-wrap: wrap;
  flex: 1 1 280px;
}

.item-checkbox-wrapper {
  display: flex;
  align-items: center;
  justify-content: center;
}

.item-checkbox {
  width: 18px;
  height: 18px;
  accent-color: var(--color-accent);
  cursor: pointer;
}

.item-thumb-preview {
  width: 52px;
  height: 52px;
  background-color: #000;
  border-radius: 6px;
  border: 1px solid var(--color-card-border);
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.item-thumb-preview img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
}

.item-info {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
  overflow: hidden;
}

.item-name-row {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  flex-wrap: wrap;
}

.item-name {
  font-weight: 700;
  font-size: 0.92rem;
  color: var(--color-text-main);
  font-family: var(--font-family-mono);
}

.page-pill {
  background-color: var(--color-bg);
  border: 1px solid var(--color-card-border);
  color: var(--color-text-secondary);
  padding: 0.1rem 0.5rem;
  border-radius: var(--measure-radius-full);
  font-size: 0.72rem;
  font-weight: 600;
}

.item-detail {
  font-size: 0.8rem;
  color: var(--color-text-muted);
}

.item-right {
  display: flex;
  align-items: center;
  gap: var(--measure-space-sm);
  flex-wrap: wrap;
}

/* Badges de Estado */
.status-pill {
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.25rem 0.65rem;
  border-radius: var(--measure-radius-full);
  text-transform: uppercase;
  letter-spacing: 0.03em;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
}

.status-reducida {
  background-color: var(--color-danger-bg);
  color: var(--color-danger);
  border: 1px solid var(--color-danger-border);
}

.status-recomprimida {
  background-color: var(--color-warning-bg);
  color: var(--color-warning);
  border: 1px solid var(--color-warning-border);
}

.status-ok {
  background-color: var(--color-success-bg);
  color: var(--color-success);
  border: 1px solid var(--color-success-border);
}

.status-alterada {
  background-color: var(--color-purple-bg);
  color: var(--color-purple);
  border: 1px solid var(--color-purple-border);
}

.status-sin-emparejar {
  background-color: var(--color-bg);
  color: var(--color-text-muted);
  border: 1px solid var(--color-card-border);
}

.badge-tag-jpegli {
  background-color: var(--color-info-bg);
  color: var(--color-info);
  border: 1px solid var(--color-info-border);
  padding: 0.15rem 0.45rem;
  border-radius: var(--measure-radius-sm);
  font-size: 0.7rem;
  font-weight: 700;
  font-family: var(--font-family-mono);
}

.badge-tag-gray {
  background-color: rgba(255, 255, 255, 0.08);
  color: var(--color-text-secondary);
  border: 1px solid var(--color-card-border);
  padding: 0.15rem 0.45rem;
  border-radius: var(--measure-radius-sm);
  font-size: 0.7rem;
  font-weight: 700;
  font-family: var(--font-family-mono);
}

/* Barra Inferior de Descarga */
.download-footer {
  margin-top: var(--measure-space-sm);
  padding: var(--measure-space-md);
  background: linear-gradient(
    90deg,
    rgba(63, 185, 80, 0.12) 0%,
    var(--color-bg-subtle) 100%
  );
  border: 1px solid var(--color-success-border);
  border-radius: var(--measure-radius-md);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--measure-space-md);
  flex-wrap: wrap;
}

.download-info {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}

.download-title {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--color-text-main);
}

.download-sub {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  max-width: 500px;
}

/* Pie de Página */
.footer {
  text-align: center;
  padding: var(--measure-space-xl) var(--measure-space-sm)
    var(--measure-space-md);
  color: var(--color-text-muted);
  font-size: 0.85rem;
}

/* Notificación Toast */
.toast {
  position: fixed;
  bottom: 24px;
  right: 24px;
  background-color: var(--color-card);
  color: var(--color-text-main);
  border: 1px solid var(--color-card-border);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.5);
  border-radius: var(--measure-radius-sm);
  padding: var(--measure-space-sm) var(--measure-space-md);
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 0.9rem;
  z-index: 1000;
  transform: translateY(100px);
  opacity: 0;
  transition: all 0.3s ease;
  pointer-events: none;
  max-width: 90vw;
}

.toast.show {
  transform: translateY(0);
  opacity: 1;
}

.toast-icon {
  display: flex;
  align-items: center;
  color: var(--color-accent);
}

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

.toast.warning .toast-icon {
  color: var(--color-warning);
}

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