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

html {
    font-size: 16px; /* Base para REM */
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol";
    line-height: 1.6;
    background-color: var(--color-background-light);
    color: var(--color-text-primary);
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    padding-top: 70px; /* Espacio para el header fijo */
}

img, picture, video, canvas, svg {
    display: block;
    max-width: 100%;
}

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

/* Variables CSS */
:root {
    --color-primary: #007bff; /* Azul primario (similar a EduDocs/RAG Manager) */
    --color-primary-dark: #0056b3;
    --color-primary-light: #e7f3fe;

    --color-secondary: #6c757d; /* Gris secundario */
    --color-success: #28a745;
    --color-success-dark: #1e7e34;
    --color-success-light: #d4edda;
    --color-danger: #dc3545;
    --color-danger-dark: #c82333;
    --color-danger-light: #f8d7da;
    --color-warning: #ffc107;
    --color-warning-dark: #d39e00;
    --color-warning-light: #fff3cd;
    --color-info: #17a2b8;
    --color-info-dark: #117a8b;
    --color-info-light: #d1ecf1;

    --color-text-primary: #212529;
    --color-text-secondary: #6c757d;
    --color-text-muted: #868e96;
    --color-text-on-primary: #ffffff;
    --color-text-on-dark: #ffffff;

    --color-background-light: #f0f2f5; /* Fondo general de la página */
    --color-background-card: #ffffff; /* Fondo de las tarjetas */
    --color-border: #dee2e6;

    --font-family-sans-serif: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol";
    
    --border-radius-sm: 0.2rem;
    --border-radius: 0.375rem; /* Bootstrap 5 default: 0.375rem */
    --border-radius-lg: 0.5rem;

    --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
    --shadow: 0 4px 8px rgba(0,0,0,0.1);
    --shadow-lg: 0 10px 20px rgba(0,0,0,0.1);

    --header-height: 70px;
}

/* Estructura Principal */
.site-header {
    background-color: var(--color-background-card);
    padding: 0 1.5rem;
    height: var(--header-height);
    display: flex;
    align-items: center;
    justify-content: space-between;
    box-shadow: var(--shadow-sm);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
}

.logo-container {
    display: flex;
    align-items: center;
}

.logo-container img {
    height: 30px; /* Ajusta según tu logo */
    margin-right: 0.5rem;
}

.logo-container .site-title {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--color-primary);
    text-decoration: none;
}

.main-nav ul {
    list-style: none;
    display: flex;
    gap: 1rem;
}

.main-nav a {
    text-decoration: none;
    color: var(--color-text-secondary);
    padding: 0.5rem 0.75rem;
    border-radius: var(--border-radius-sm);
    transition: background-color 0.2s ease, color 0.2s ease;
}

.main-nav a:hover,
.main-nav a.active {
    color: var(--color-primary);
    background-color: var(--color-primary-light);
}

.user-profile-icon img {
    height: 35px;
    width: 35px;
    border-radius: 50%;
    object-fit: cover;
    cursor: pointer;
}

.main-content {
    flex-grow: 1;
    padding: 2rem 1.5rem;
    max-width: 1200px;
    width: 100%;
    margin: 0 auto; /* Centra el contenido */
}

.site-footer {
    background-color: var(--color-background-card);
    color: var(--color-text-muted);
    text-align: center;
    padding: 1.5rem;
    border-top: 1px solid var(--color-border);
    font-size: 0.9rem;
}

/* Contenedor General de Página (para index, manage_files) */
.page-container {
    background-color: var(--color-background-card);
    padding: 2rem;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow);
}

.page-header {
    margin-bottom: 1.5rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--color-border);
}

.page-header h1 {
    font-size: 1.75rem;
    color: var(--color-text-primary);
    font-weight: 600;
}
.page-header h2 {
    font-size: 1.5rem;
    color: var(--color-text-primary);
    font-weight: 500;
    margin-top: 1.5rem;
    margin-bottom: 1rem;
}


/* Componentes Comunes */
.btn {
    display: inline-block;
    font-weight: 500;
    line-height: 1.5;
    color: var(--color-text-on-primary);
    text-align: center;
    vertical-align: middle;
    cursor: pointer;
    user-select: none;
    background-color: transparent;
    border: 1px solid transparent;
    padding: 0.5rem 1rem; /* Ajustado para consistencia */
    font-size: 1rem;
    border-radius: var(--border-radius);
    transition: color 0.15s ease-in-out, background-color 0.15s ease-in-out, border-color 0.15s ease-in-out, box-shadow 0.15s ease-in-out;
}

.btn-primary {
    background-color: var(--color-primary);
    border-color: var(--color-primary);
    color: var(--color-text-on-primary);
}
.btn-primary:hover {
    background-color: var(--color-primary-dark);
    border-color: var(--color-primary-dark);
}

.btn-secondary {
    background-color: var(--color-secondary);
    border-color: var(--color-secondary);
    color: var(--color-text-on-primary);
}
.btn-secondary:hover {
    background-color: #5a6268;
    border-color: #545b62;
}

.btn-success {
    background-color: var(--color-success);
    border-color: var(--color-success);
    color: var(--color-text-on-primary);
}
.btn-success:hover {
    background-color: var(--color-success-dark);
    border-color: var(--color-success-dark);
}

.btn-danger {
    background-color: var(--color-danger);
    border-color: var(--color-danger);
    color: var(--color-text-on-primary);
}
.btn-danger:hover {
    background-color: var(--color-danger-dark);
    border-color: var(--color-danger-dark);
}

.btn-warning {
    background-color: var(--color-warning);
    border-color: var(--color-warning);
    color: var(--color-text-primary); /* Texto oscuro para warning */
}
.btn-warning:hover {
    background-color: var(--color-warning-dark);
    border-color: var(--color-warning-dark);
}

.btn-info {
    background-color: var(--color-info);
    border-color: var(--color-info);
    color: var(--color-text-on-primary);
}
.btn-info:hover {
    background-color: var(--color-info-dark);
    border-color: var(--color-info-dark);
}

.btn-light {
    background-color: var(--color-background-light);
    border-color: var(--color-border);
    color: var(--color-text-primary);
}
.btn-light:hover {
    background-color: #e2e6ea;
    border-color: #dae0e5;
}

.btn-outline-primary {
    color: var(--color-primary);
    border-color: var(--color-primary);
}
.btn-outline-primary:hover {
    color: var(--color-text-on-primary);
    background-color: var(--color-primary);
    border-color: var(--color-primary);
}
/* ... otros btn-outline ... */

.btn:disabled,
.btn.disabled {
    opacity: 0.65;
    cursor: not-allowed;
    box-shadow: none;
}

.btn-block {
    display: block;
    width: 100%;
}

.btn-sm {
    padding: 0.25rem 0.5rem;
    font-size: 0.875rem;
    border-radius: var(--border-radius-sm);
}

.btn-lg {
    padding: 0.75rem 1.5rem;
    font-size: 1.25rem;
    border-radius: var(--border-radius-lg);
}

.btn-spinner {
    display: inline-block;
    width: 1em;
    height: 1em;
    border: 2px solid currentColor;
    border-top-color: transparent;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    margin-right: 0.5rem;
    vertical-align: -0.15em;
}

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

/* Formularios */
.form-group {
    margin-bottom: 1rem;
}

.form-label {
    display: inline-block;
    margin-bottom: 0.5rem;
    font-weight: 500;
}

.form-control,
.form-select {
    display: block;
    width: 100%;
    padding: 0.625rem 0.75rem; /* Ajustado */
    font-size: 1rem;
    font-weight: 400;
    line-height: 1.5;
    color: var(--color-text-primary);
    background-color: var(--color-background-card);
    background-clip: padding-box;
    border: 1px solid var(--color-border);
    appearance: none;
    border-radius: var(--border-radius);
    transition: border-color 0.15s ease-in-out, box-shadow 0.15s ease-in-out;
}

.form-control:focus,
.form-select:focus {
    border-color: var(--color-primary);
    outline: 0;
    box-shadow: 0 0 0 0.25rem rgba(var(--color-primary), 0.25); /* Arreglar para que tome el color primario */
}
/* Para que el box-shadow funcione con variable RGB: */
/* :root { --color-primary-rgb: 0, 123, 255; } */
/* box-shadow: 0 0 0 0.25rem rgba(var(--color-primary-rgb), 0.25); */


.form-select {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3e%3cpath fill='none' stroke='%23343a40' stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='m2 5 6 6 6-6'/%3e%3c/svg%3e");
    background-repeat: no-repeat;
    background-position: right 0.75rem center;
    background-size: 16px 12px;
    padding-right: 2.25rem; /* Espacio para el icono */
}

.form-control::placeholder {
    color: var(--color-text-muted);
    opacity: 1;
}

.form-control:disabled, .form-control[readonly] {
    background-color: #e9ecef;
    opacity: 1;
}

.form-text {
    font-size: 0.875em;
    color: var(--color-text-muted);
    margin-top: 0.25rem;
}

/* Tarjetas (Cards) */
.card {
    position: relative;
    display: flex;
    flex-direction: column;
    min-width: 0;
    word-wrap: break-word;
    background-color: var(--color-background-card);
    background-clip: border-box;
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-sm);
    margin-bottom: 1.5rem;
}

.card-header {
    padding: 1rem 1.25rem;
    margin-bottom: 0;
    background-color: rgba(0,0,0,.03);
    border-bottom: 1px solid var(--color-border);
    font-size: 1.1rem;
    font-weight: 500;
}
.card-header:first-child {
    border-radius: var(--border-radius-lg) var(--border-radius-lg) 0 0;
}

.card-body {
    flex: 1 1 auto;
    padding: 1.25rem;
}

.card-title {
    margin-bottom: 0.5rem;
    font-size: 1.25rem;
    font-weight: 600;
}

.card-subtitle {
    margin-top: -0.25rem;
    margin-bottom: 0.5rem;
    color: var(--color-text-secondary);
}

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

.card-footer {
    padding: 1rem 1.25rem;
    background-color: rgba(0,0,0,.03);
    border-top: 1px solid var(--color-border);
}
.card-footer:last-child {
    border-radius: 0 0 var(--border-radius-lg) var(--border-radius-lg);
}

/* Alertas / Mensajes de Estado */
.alert {
    position: relative;
    padding: 1rem 1rem;
    margin-bottom: 1rem;
    border: 1px solid transparent;
    border-radius: var(--border-radius);
    display: flex;
    align-items: center;
}
.alert-icon {
    margin-right: 0.75rem;
    font-size: 1.25rem;
}

.alert-primary { color: #004085; background-color: #cce5ff; border-color: #b8daff; }
.alert-secondary { color: #383d41; background-color: #e2e3e5; border-color: #d6d8db; }
.alert-success { color: var(--color-success-dark); background-color: var(--color-success-light); border-color: #c3e6cb; }
.alert-danger { color: var(--color-danger-dark); background-color: var(--color-danger-light); border-color: #f5c6cb; }
.alert-warning { color: #856404; background-color: #fff3cd; border-color: #ffeeba; } /* Texto oscuro para warning */
.alert-info { color: var(--color-info-dark); background-color: var(--color-info-light); border-color: #bee5eb; }

#status-messages-container { /* Contenedor para mensajes globales */
    position: fixed;
    top: calc(var(--header-height) + 1rem);
    right: 1.5rem;
    z-index: 1050;
    width: 350px;
    max-width: 90%;
}
#status-messages-container .alert {
    box-shadow: var(--shadow);
}

/* Tablas */
.table-container {
    overflow-x: auto; /* Para responsividad en tablas anchas */
}
.table {
    width: 100%;
    margin-bottom: 1rem;
    color: var(--color-text-primary);
    border-collapse: collapse;
}
.table th,
.table td {
    padding: 0.75rem;
    vertical-align: top;
    border-top: 1px solid var(--color-border);
}
.table thead th {
    vertical-align: bottom;
    border-bottom: 2px solid var(--color-border);
    text-align: left;
    font-weight: 600;
    background-color: #f8f9fa; /* Un gris muy claro para el encabezado */
}
.table tbody tr:nth-of-type(odd) {
    /* background-color: rgba(0,0,0,.02); Opcional: zebra striping */
}
.table tbody tr:hover {
    background-color: rgba(0,0,0,.05);
}
.table-sm th,
.table-sm td {
    padding: 0.3rem;
}

/* Indicadores de Estado en Tablas (Estilo Píldora/Badge) */
.status-indicator {
    display: inline-flex;
    align-items: center;
    padding: 0.35em 0.65em; /* Un poco más de padding */
    font-size: 0.8rem;    /* Ligeramente más pequeño para un look refinado */
    font-weight: 500;     /* Un poco menos bold que 600 */
    line-height: 1;
    text-align: center;
    white-space: nowrap;
    vertical-align: middle; /* Mejor alineación vertical */
    border-radius: var(--border-radius-lg); /* Más redondeado, como píldora */
    text-transform: capitalize; /* Para que PENDING sea Pendiente, etc. si el JS no lo hace */
}
.status-indicator-icon {
    margin-right: 0.4em; /* Un poco más de espacio para el icono */
    font-size: 0.9em; /* Ajustar tamaño del icono si es un carácter de fuente */
}

/* Colores específicos para los badges de estado */
.status-indicator.status-success { background-color: var(--color-success-light); color: var(--color-success-dark); border: 1px solid var(--color-success-dark); }
.status-indicator.status-danger { background-color: var(--color-danger-light); color: var(--color-danger-dark); border: 1px solid var(--color-danger-dark); }
.status-indicator.status-warning { background-color: var(--color-warning-light); color: #856404; border: 1px solid var(--color-warning-dark); }
.status-indicator.status-info { background-color: var(--color-info-light); color: var(--color-info-dark); border: 1px solid var(--color-info-dark); }
.status-indicator.status-processing { background-color: var(--color-primary-light); color: var(--color-primary-dark); border: 1px solid var(--color-primary-dark); }
.status-indicator.status-default { background-color: var(--color-secondary-light, #e9ecef); color: var(--color-secondary); border: 1px solid var(--color-secondary); }


/* Barra de Progreso Mejorada */
.progress {
    display: flex;
    height: 0.75rem; /* Más delgada, como en la Imagen 1 */
    overflow: hidden;
    font-size: .75rem; /* No relevante si no mostramos texto dentro */
    background-color: #e9ecef; /* Fondo de la barra */
    border-radius: var(--border-radius); /* Bordes redondeados */
    width: 100%; /* Asegurar que ocupe el contenedor */
    min-width: 100px; /* Mínimo para que no desaparezca si la celda es muy pequeña */
}
.progress-bar {
    display: flex;
    flex-direction: column;
    justify-content: center;
    overflow: hidden;
    color: var(--color-text-on-primary);
    text-align: center;
    white-space: nowrap;
    background-color: var(--color-primary); /* Color por defecto de la barra de progreso */
    transition: width .6s ease;
    border-radius: var(--border-radius); /* Para que la barra interna también sea redondeada */
}
.progress-bar.bg-success { background-color: var(--color-success) !important; }
.progress-bar.bg-danger { background-color: var(--color-danger) !important; }
.progress-bar.bg-warning { background-color: var(--color-warning) !important; }
.progress-bar.bg-info { background-color: var(--color-info) !important; }


.progress-bar-striped {
    background-image: linear-gradient(45deg,rgba(255,255,255,.15) 25%,transparent 25%,transparent 50%,rgba(255,255,255,.15) 50%,rgba(255,255,255,.15) 75%,transparent 75%,transparent);
    background-size: 0.5rem 0.5rem; /* Rayas más pequeñas */
}
.progress-bar-animated {
    animation: progress-bar-stripes 1s linear infinite;
}
@keyframes progress-bar-stripes {
    0% { background-position-x: 0.5rem; }
}

/* Ajustes específicos para la tabla de archivos */
#files-table td, #files-table th {
    vertical-align: middle; /* Centrar contenido verticalmente en celdas */
}

#files-table .cell-actions { /* Si usamos una clase para la celda de acciones */
    text-align: right; /* Alinear acciones a la derecha */
}

#files-table .btn-sm { /* Asegurar que los botones de acción sean pequeños */
    padding: 0.2rem 0.5rem;
    font-size: 0.8rem;
}

/* Icono de tres puntos para acciones (ejemplo) */
.actions-menu-btn {
    background: none;
    border: none;
    color: var(--color-text-secondary);
    cursor: pointer;
    padding: 0.25rem 0.5rem;
}
.actions-menu-btn:hover {
    color: var(--color-primary);
}
.actions-menu-btn::after {
    content: '⋮'; /* O un SVG icon */
    font-size: 1.25rem;
    font-weight: bold;
}


/* Clases de utilidad */
.text-center { text-align: center !important; }
.text-right { text-align: right !important; }
.text-left { text-align: left !important; }
.d-none { display: none !important; }
.d-block { display: block !important; }
.d-flex { display: flex !important; }
.justify-content-between { justify-content: space-between !important; }
.align-items-center { align-items: center !important; }
.mt-1 { margin-top: 0.25rem !important; }
.mt-2 { margin-top: 0.5rem !important; }
.mt-3 { margin-top: 1rem !important; }
.mt-4 { margin-top: 1.5rem !important; }
.mt-5 { margin-top: 3rem !important; }
.mb-1 { margin-bottom: 0.25rem !important; }
.mb-2 { margin-bottom: 0.5rem !important; }
.mb-3 { margin-bottom: 1rem !important; }
.mb-4 { margin-bottom: 1.5rem !important; }
.mb-5 { margin-bottom: 3rem !important; }
.p-1 { padding: 0.25rem !important; }
.p-2 { padding: 0.5rem !important; }
.p-3 { padding: 1rem !important; }
.p-4 { padding: 1.5rem !important; }
.p-5 { padding: 3rem !important; }
.w-100 { width: 100% !important; }

/* Estilos específicos para el Dashboard (index.html) */
.dashboard-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}
.stat-card {
    padding: 1.5rem;
    text-align: center;
}
.stat-card .stat-value {
    font-size: 2.5rem;
    font-weight: 600;
    color: var(--color-primary);
    margin-bottom: 0.25rem;
}
.stat-card .stat-label {
    font-size: 1rem;
    color: var(--color-text-secondary);
}

/* Estilos específicos para manage_files.html */
.actions-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
    flex-wrap: wrap; /* Para responsividad */
    gap: 1rem;
}
.actions-bar .search-filter-container {
    display: flex;
    gap: 1rem;
    flex-grow: 1; /* Para que ocupe espacio */
}
.actions-bar .search-filter-container .form-control {
    min-width: 200px; /* Ancho mínimo para el input de búsqueda */
}

/* Responsividad */
@media (max-width: 992px) {
    .main-nav {
        /* Aquí podrías implementar un menú hamburguesa */
        /* Por ahora, simplemente ocultamos la navegación en pantallas pequeñas si no cabe */
    }
    .dashboard-grid {
        grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    }
}

@media (max-width: 768px) {
    body {
        padding-top: 60px; /* Ajustar para header más pequeño si es necesario */
    }
    .site-header {
        height: 60px;
        padding: 0 1rem;
    }
    .logo-container .site-title {
        font-size: 1.25rem;
    }
    .main-content {
        padding: 1.5rem 1rem;
    }
    .page-container {
        padding: 1.5rem;
    }
    .page-header h1 {
        font-size: 1.5rem;
    }
    .actions-bar {
        flex-direction: column;
        align-items: stretch;
    }
    .actions-bar .search-filter-container {
        flex-direction: column;
    }
    .actions-bar .btn {
        width: 100%; /* Botones ocupan todo el ancho */
    }
    .table {
        font-size: 0.9rem; /* Reducir tamaño de fuente en tablas */
    }
    .table th, .table td {
        padding: 0.5rem;
    }
}

@media (max-width: 576px) {
    .main-nav ul {
        /* Ocultar o transformar a menú hamburguesa */
        display: none; /* Ejemplo simple */
    }
    .user-profile-icon {
        /* Ajustar si es necesario */
    }
    .stat-card .stat-value {
        font-size: 2rem;
    }
    #status-messages-container {
        width: 100%;
        right: 0;
        top: var(--header-height);
        border-radius: 0;
        padding: 0 0.5rem;
    }
    #status-messages-container .alert {
        margin-bottom: 0.5rem;
    }
}

/* Estilos para la lista de archivos en procesamiento (temporal hasta que se integre en tabla) */
.file-list {
    list-style: none;
    padding-left: 0;
    margin-top: 10px;
    margin-bottom: 30px;
}

.file-list li {
    background-color: #fff;
    border: 1px solid var(--color-border);
    padding: 12px 18px;
    margin-bottom: 10px;
    border-radius: var(--border-radius);
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: var(--shadow-sm);
}

.file-list li .status-icon {
    margin-right: 8px;
    font-size: 1.1em;
}
.file-list li .status-icon.spinner {
    width: 1em;
    height: 1em;
    border: 2px solid #ccc;
    border-top-color: var(--color-primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    display: inline-block;
}
.file-list li.status-failure {
    background-color: var(--color-danger-light);
    border-left: 5px solid var(--color-danger);
}
.file-list li.status-failure .status-text {
    color: var(--color-danger-dark);
}