/**
 * Sistema de Requisiciones - Hoja de Estilos Principal
 * Diseño amigable, limpio, moderno y con contrastes equilibrados.
 */

/* =========================================================================
   1. VARIABLES DE DISEÑO (TEMA AMIGABLE Y MODERNO)
   ========================================================================= */
:root {
    /* Paleta de colores primarios */
    --color-primary: #2563eb;
    --color-primary-hover: #1d4ed8;
    --color-primary-light: #eff6ff;
    --color-primary-border: #bfdbfe;

    /* Superficies y fondos */
    --color-bg: #f8fafc;
    --color-surface: #ffffff;
    --color-surface-hover: #f1f5f9;
    --color-border: #e2e8f0;
    --color-border-hover: #cbd5e1;

    /* Tipografía y textos */
    --color-text-main: #1e293b;
    --color-text-secondary: #475569;
    --color-text-muted: #64748b;
    --color-text-inverse: #ffffff;

    /* Estados y alertas (tonos amigables, no agresivos) */
    --color-success: #10b981;
    --color-success-hover: #059669;
    --color-success-bg: #ecfdf5;
    --color-success-border: #a7f3d0;
    --color-success-text: #065f46;

    --color-danger: #ef4444;
    --color-danger-hover: #dc2626;
    --color-danger-bg: #fef2f2;
    --color-danger-border: #fecaca;
    --color-danger-text: #991b1b;

    --color-warning: #f59e0b;
    --color-warning-hover: #d97706;
    --color-warning-bg: #fffbeb;
    --color-warning-border: #fde68a;
    --color-warning-text: #92400e;

    --color-info: #0284c7;
    --color-info-hover: #0369a1;
    --color-info-bg: #f0f9ff;
    --color-info-border: #bae6fd;
    --color-info-text: #075985;

    /* Sombras sutiles */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.07), 0 2px 4px -2px rgba(0, 0, 0, 0.05);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -4px rgba(0, 0, 0, 0.04);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.04);

    /* Radios de borde */
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 14px;
    --radius-full: 9999px;

    /* Fuentes */
    --font-sans: system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

/* =========================================================================
   2. RESET Y ESTILOS BASE
   ========================================================================= */
*, *::before, *::after {
    box-sizing: border-box;
}

body {
    margin: 0;
    padding: 0;
    font-family: var(--font-sans);
    font-size: 15px;
    line-height: 1.5;
    color: var(--color-text-main);
    background-color: var(--color-bg);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, h6 {
    color: var(--color-text-main);
    font-weight: 700;
    line-height: 1.25;
    margin-top: 0;
    margin-bottom: 0.75rem;
}

h1 {
    font-size: 1.75rem;
    letter-spacing: -0.02em;
}

h2 {
    font-size: 1.35rem;
    margin-top: 1.5rem;
}

h3 {
    font-size: 1.15rem;
}

p {
    margin-top: 0;
    margin-bottom: 1rem;
    color: var(--color-text-secondary);
}

a {
    color: var(--color-primary);
    text-decoration: none;
    transition: color 0.15s ease;
}

a:hover {
    color: var(--color-primary-hover);
    text-decoration: underline;
}

/* =========================================================================
   3. ESTRUCTURA Y NAVEGACIÓN PRINCIPAL
   ========================================================================= */
.app-header {
    background-color: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 100;
}

.nav-container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
    gap: 20px;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 700;
    font-size: 1.1rem;
    color: var(--color-text-main);
    text-decoration: none;
    flex-shrink: 0;
}

.nav-brand:hover {
    text-decoration: none;
    color: var(--color-primary);
}

.nav-brand-icon {
    width: 28px;
    height: 28px;
    color: var(--color-primary);
    display: flex;
    align-items: center;
    justify-content: center;
}

.menu-principal {
    display: flex;
    align-items: center;
    gap: 6px;
    margin: 0;
    padding: 0;
    list-style: none;
}

.menu-principal a {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 14px;
    border-radius: var(--radius-sm);
    color: var(--color-text-secondary);
    font-weight: 500;
    font-size: 0.92rem;
    text-decoration: none;
    transition: background-color 0.15s ease, color 0.15s ease;
}

.menu-principal a:hover {
    background-color: var(--color-surface-hover);
    color: var(--color-primary);
    text-decoration: none;
}

.menu-principal a.active {
    background-color: var(--color-primary-light);
    color: var(--color-primary);
    font-weight: 600;
}

.user-menu {
    display: flex;
    align-items: center;
    gap: 14px;
    margin-left: auto;
    flex-shrink: 0;
}

.user-pill {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 6px 12px;
    background-color: var(--color-surface-hover);
    border-radius: var(--radius-full);
    border: 1px solid var(--color-border);
    font-size: 0.88rem;
    color: var(--color-text-main);
    font-weight: 500;
}

.user-avatar-icon {
    width: 20px;
    height: 20px;
    color: var(--color-text-muted);
}

.btn-logout {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 7px 12px;
    border-radius: var(--radius-sm);
    color: var(--color-text-muted);
    font-size: 0.88rem;
    font-weight: 500;
    background: transparent;
    border: 1px solid transparent;
    text-decoration: none;
    transition: all 0.15s ease;
}

.btn-logout:hover {
    color: var(--color-danger-text);
    background-color: var(--color-danger-bg);
    border-color: var(--color-danger-border);
    text-decoration: none;
}

/* Contenedor principal de contenidos */
.contenedor-principal {
    flex: 1;
    width: 100%;
    max-width: 1280px;
    margin: 0 auto;
    padding: 32px 24px 48px;
    box-sizing: border-box;
}

.tabla-revision-contenedor {
    overflow-x: auto;
    margin: 24px 0;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    background: var(--color-surface);
    box-shadow: var(--shadow-sm);
}

.tabla-revision {
    width: 100%;
    min-width: 760px;
    border-collapse: collapse;
}

.tabla-revision th,
.tabla-revision td {
    padding: 14px 16px;
    text-align: left;
    vertical-align: middle;
    border-bottom: 1px solid var(--color-border);
}

.tabla-revision thead th {
    background: var(--color-surface-hover);
    color: var(--color-text-secondary);
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    white-space: nowrap;
}

.tabla-revision .fila-material th {
    width: 42%;
    color: var(--color-text-main);
    font-weight: 650;
}

.tabla-revision .fila-material td {
    color: var(--color-text-secondary);
}

.tabla-revision .fila-material:last-child td,
.tabla-revision .fila-material:last-child th {
    border-bottom: 0;
}

.tabla-revision .cantidad-surtir {
    width: 110px;
    margin: 0;
}

.tabla-revision .cambiar-material {
    padding: 7px 12px;
    background: var(--color-surface);
    color: var(--color-primary);
    border-color: var(--color-primary-border);
    white-space: nowrap;
}

.tabla-revision .cambiar-material:hover {
    background: var(--color-primary-light);
}

.tabla-revision .fila-detalles td {
    padding: 0 16px 18px;
    background: var(--color-bg);
}

.tabla-revision .fila-detalles h3 {
    margin: 18px 0 10px;
    font-size: 0.95rem;
}

.tabla-revision .buscador-material {
    padding-top: 16px;
}

.tabla-revision .buscador-material label {
    display: block;
    max-width: 620px;
}

.tabla-revision .resultados-producto {
    display: grid;
    gap: 6px;
    margin: 8px 0;
}

.tabla-revision .resultados-producto button {
    justify-content: flex-start;
    background: var(--color-surface);
    color: var(--color-text-main);
    border-color: var(--color-border);
}

.tabla-revision .propuesta-material {
    display: grid;
    grid-template-columns: minmax(220px, 1fr) 110px minmax(180px, 1fr) auto;
    gap: 8px;
    align-items: center;
    padding: 8px 0;
    border-top: 1px solid var(--color-border);
}

.tabla-revision .propuesta-material input {
    min-width: 0;
    margin: 0;
}

.tabla-revision .propuesta-material button {
    padding: 7px 10px;
    background: var(--color-danger-bg);
    color: var(--color-danger-text);
    border-color: var(--color-danger-border);
}

.tabla-compras .fila-material h2 {
    margin: 0;
    font-size: 1rem;
}

.tabla-compras .nota-sustitucion-almacen {
    margin: 6px 0 0;
    font-size: 0.82rem;
    color: var(--color-text-secondary);
}

.tabla-compras .nota-sustitucion-almacen s {
    color: var(--color-text-muted);
}

.tabla-compras .fila-detalles td {
    padding-top: 16px;
}

.tabla-compras .detalle-compra {
    display: grid;
    gap: 16px;
}

.tabla-compras .busqueda-compra-contenedor {
    display: grid;
    gap: 8px;
    max-width: 620px;
}

.tabla-compras .busqueda-compra:not([hidden]) {
    display: block;
}

.tabla-compras .resultados-compra {
    display: grid;
    gap: 6px;
}

.tabla-compras .resultados-compra button {
    justify-content: flex-start;
    background: var(--color-surface);
    color: var(--color-text-main);
    border-color: var(--color-border);
}

.tabla-compras .datos-compra {
    display: grid;
    grid-template-columns: 180px minmax(220px, 1fr) minmax(220px, 1fr);
    gap: 16px;
    align-items: end;
}

.tabla-compras .datos-compra label {
    display: grid;
    gap: 6px;
}

.tabla-compras .cantidad-compra,
.tabla-compras .observacion-compra {
    margin: 0;
}

.tabla-compras .propuesta-elegida {
    align-self: center;
    margin: 0;
    color: var(--color-text-secondary);
}

@media (max-width: 760px) {
    .tabla-revision-contenedor {
        border: 0;
        border-radius: 0;
        background: transparent;
        box-shadow: none;
        overflow: visible;
    }

    .tabla-revision {
        min-width: 0;
        display: block;
    }

    .tabla-revision thead {
        display: none;
    }

    .tabla-revision tbody {
        display: block;
        margin-bottom: 14px;
        border: 1px solid var(--color-border);
        border-radius: var(--radius-md);
        background: var(--color-surface);
        box-shadow: var(--shadow-sm);
        overflow: hidden;
    }

    .tabla-revision tr,
    .tabla-revision th,
    .tabla-revision td {
        display: block;
        width: auto;
    }

    .tabla-revision .fila-material th,
    .tabla-revision .fila-material td {
        padding: 10px 14px 10px 122px;
        position: relative;
        min-height: 42px;
        border-bottom: 1px solid var(--color-border);
    }

    .tabla-revision .fila-material th::before,
    .tabla-revision .fila-material td::before {
        content: attr(data-label);
        position: absolute;
        left: 14px;
        color: var(--color-text-muted);
        font-size: 0.75rem;
        font-weight: 700;
        text-transform: uppercase;
    }

    .tabla-revision .fila-material th::before {
        content: "Material";
    }

    .tabla-revision .fila-detalles td {
        padding: 0 14px 14px;
    }

    .tabla-compras .fila-detalles td {
        padding-top: 14px;
    }

    .tabla-compras .datos-compra {
        grid-template-columns: 1fr;
        gap: 12px;
    }

    .tabla-revision .propuesta-material {
        grid-template-columns: 1fr 100px;
    }

    .tabla-revision .propuesta-material input:nth-of-type(2) {
        grid-column: 1 / -1;
    }

    .tabla-revision .propuesta-material button {
        grid-column: 2;
    }
}

/* =========================================================================
   4. TARJETAS, PANELES Y CONTENEDORES
   ========================================================================= */
.card {
    background-color: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    padding: 24px;
    margin-bottom: 24px;
    transition: box-shadow 0.15s ease, border-color 0.15s ease;
}

.card:hover {
    box-shadow: var(--shadow-md);
}

.card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-bottom: 16px;
    margin-bottom: 16px;
    border-bottom: 1px solid var(--color-border);
}

.card-header h2, .card-header h3 {
    margin: 0;
}

/* =========================================================================
   5. BOTONES Y ACCIONES (LIMPIOS Y MODERNOS)
   ========================================================================= */
.btn, button, input[type="submit"], input[type="button"] {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 9px 18px;
    font-family: inherit;
    font-size: 0.92rem;
    font-weight: 600;
    line-height: 1.4;
    border-radius: var(--radius-sm);
    border: 1px solid transparent;
    cursor: pointer;
    text-decoration: none;
    transition: background-color 0.15s ease, border-color 0.15s ease, box-shadow 0.15s ease, transform 0.1s ease;
    background-color: var(--color-primary);
    color: var(--color-text-inverse);
    box-shadow: var(--shadow-sm);
}

.btn:hover, button:hover, input[type="submit"]:hover {
    background-color: var(--color-primary-hover);
    text-decoration: none;
}

.btn:active, button:active, input[type="submit"]:active {
    transform: translateY(1px);
}

.btn-primary {
    background-color: var(--color-primary);
    color: var(--color-text-inverse);
}

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

.btn-secondary {
    background-color: #f1f5f9;
    color: var(--color-text-main);
    border-color: var(--color-border);
}

.btn-secondary:hover {
    background-color: #e2e8f0;
    color: var(--color-text-main);
}

.btn-success {
    background-color: var(--color-success);
    color: var(--color-text-inverse);
}

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

.btn-danger {
    background-color: var(--color-danger);
    color: var(--color-text-inverse);
}

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

.btn-warning {
    background-color: var(--color-warning);
    color: #ffffff;
}

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

.btn-outline {
    background-color: transparent;
    color: var(--color-primary);
    border-color: var(--color-primary-border);
}

.btn-outline:hover {
    background-color: var(--color-primary-light);
    border-color: var(--color-primary);
}

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

.btn-sm {
    padding: 6px 12px;
    font-size: 0.84rem;
}

.btn-lg {
    padding: 12px 24px;
    font-size: 1rem;
}

/* =========================================================================
   6. FORMULARIOS E INPUTS
   ========================================================================= */
form {
    max-width: 100%;
}

.form-group, form > div {
    margin-bottom: 16px;
}

label {
    display: block;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--color-text-main);
    margin-bottom: 6px;
}

input[type="text"],
input[type="password"],
input[type="email"],
input[type="date"],
input[type="number"],
select,
textarea {
    width: 100%;
    padding: 10px 14px;
    font-family: inherit;
    font-size: 0.95rem;
    color: var(--color-text-main);
    background-color: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    transition: border-color 0.15s ease, box-shadow 0.15s ease;
    box-sizing: border-box;
}

input[type="text"]:focus,
input[type="password"]:focus,
input[type="email"]:focus,
input[type="date"]:focus,
input[type="number"]:focus,
select:focus,
textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
}

input[readonly], select:disabled, textarea[readonly] {
    background-color: var(--color-surface-hover);
    color: var(--color-text-muted);
    cursor: not-allowed;
}

textarea {
    min-height: 90px;
    resize: vertical;
}

.input-error {
    border-color: var(--color-danger) !important;
    box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.15) !important;
}

/* =========================================================================
   7. BADGES Y ETIQUETAS DE ESTADO
   ========================================================================= */
.badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 3px 9px;
    font-size: 0.78rem;
    font-weight: 600;
    border-radius: var(--radius-full);
    text-transform: none;
}

.badge-maestro {
    background-color: #f5f3ff;
    color: #6d28d9;
    border: 1px solid #ddd6fe;
}

.badge-disponible, .badge-success {
    background-color: var(--color-success-bg);
    color: var(--color-success-text);
    border: 1px solid var(--color-success-border);
}

.badge-en-captura, .badge-warning {
    background-color: var(--color-warning-bg);
    color: var(--color-warning-text);
    border: 1px solid var(--color-warning-border);
}

.badge-asignado, .badge-info {
    background-color: var(--color-info-bg);
    color: var(--color-info-text);
    border: 1px solid var(--color-info-border);
}

.badge-bloqueado, .badge-danger {
    background-color: var(--color-danger-bg);
    color: var(--color-danger-text);
    border: 1px solid var(--color-danger-border);
}

/* =========================================================================
   8. ALERTAS ESTÁTICAS E INLINE
   ========================================================================= */
.alerta {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 14px 16px;
    border-radius: var(--radius-md);
    margin-bottom: 20px;
    font-size: 0.92rem;
    border: 1px solid transparent;
}

.alerta-error {
    background-color: var(--color-danger-bg);
    border-color: var(--color-danger-border);
    color: var(--color-danger-text);
}

.alerta-exito {
    background-color: var(--color-success-bg);
    border-color: var(--color-success-border);
    color: var(--color-success-text);
}

.alerta-advertencia {
    background-color: var(--color-warning-bg);
    border-color: var(--color-warning-border);
    color: var(--color-warning-text);
}

.alerta-info {
    background-color: var(--color-info-bg);
    border-color: var(--color-info-border);
    color: var(--color-info-text);
}

/* =========================================================================
   9. PÁGINA DE LOGIN (AMIGABLE, CENTRADA Y ELEGANTE)
   ========================================================================= */
.auth-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;
    background: linear-gradient(135deg, #f8fafc 0%, #edf2f7 100%);
}

.auth-card {
    width: 100%;
    max-width: 440px;
    background-color: var(--color-surface);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    border: 1px solid var(--color-border);
    padding: 40px 36px;
    box-sizing: border-box;
}

.auth-header {
    text-align: center;
    margin-bottom: 30px;
}

.auth-icon-badge {
    width: 56px;
    height: 56px;
    margin: 0 auto 16px;
    background-color: var(--color-primary-light);
    border: 1px solid var(--color-primary-border);
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-primary);
}

.auth-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-text-main);
    margin: 0 0 6px;
}

.auth-subtitle {
    font-size: 0.92rem;
    color: var(--color-text-muted);
    margin: 0;
}

.auth-form .form-group {
    margin-bottom: 20px;
}

.auth-form label {
    font-size: 0.88rem;
    font-weight: 600;
    color: var(--color-text-secondary);
}

.auth-form input {
    height: 44px;
    font-size: 0.95rem;
}

.auth-footer-text {
    text-align: center;
    margin-top: 24px;
    font-size: 0.82rem;
    color: var(--color-text-muted);
}

/* =========================================================================
   10. PÁGINA DE INICIO (DASHBOARD AMIGABLE)
   ========================================================================= */
.welcome-hero {
    background: linear-gradient(135deg, #2563eb 0%, #1e40af 100%);
    color: #ffffff;
    border-radius: var(--radius-lg);
    padding: 32px 36px;
    margin-bottom: 32px;
    box-shadow: var(--shadow-md);
    position: relative;
    overflow: hidden;
}

.welcome-hero-content {
    position: relative;
    z-index: 2;
}

.welcome-hero h1 {
    color: #ffffff;
    font-size: 1.85rem;
    margin-bottom: 6px;
}

.welcome-hero p {
    color: rgba(255, 255, 255, 0.9);
    font-size: 1.05rem;
    margin: 0;
    max-width: 680px;
}

.welcome-badges {
    display: flex;
    gap: 10px;
    margin-top: 16px;
    align-items: center;
}

.welcome-badge-pill {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 4px 12px;
    background-color: rgba(255, 255, 255, 0.2);
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: var(--radius-full);
    font-size: 0.82rem;
    font-weight: 600;
    color: #ffffff;
}

/* Tarjetas de métricas / KPI */
.kpi-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 18px;
    margin-bottom: 32px;
}

.kpi-card {
    background-color: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 20px;
    box-shadow: var(--shadow-sm);
    display: flex;
    align-items: center;
    gap: 16px;
}

.kpi-icon-wrap {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.kpi-blue {
    background-color: var(--color-primary-light);
    color: var(--color-primary);
}

.kpi-amber {
    background-color: var(--color-warning-bg);
    color: var(--color-warning-text);
}

.kpi-green {
    background-color: var(--color-success-bg);
    color: var(--color-success-text);
}

.kpi-details {
    display: flex;
    flex-direction: column;
}

.kpi-num {
    font-size: 1.6rem;
    font-weight: 700;
    color: var(--color-text-main);
    line-height: 1.1;
}

.kpi-label {
    font-size: 0.84rem;
    color: var(--color-text-muted);
    font-weight: 500;
}

/* Grid de accesos rápidos */
.dashboard-section-title {
    font-size: 1.25rem;
    margin-bottom: 16px;
    color: var(--color-text-main);
}

.quick-actions-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
    margin-bottom: 32px;
}

.action-card {
    background-color: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 24px;
    box-shadow: var(--shadow-sm);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    text-decoration: none;
    transition: all 0.15s ease;
}

.action-card:hover {
    border-color: var(--color-primary-border);
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
    text-decoration: none;
}

.action-card-top {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    margin-bottom: 18px;
}

.action-icon {
    width: 44px;
    height: 44px;
    border-radius: var(--radius-md);
    background-color: var(--color-primary-light);
    color: var(--color-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.action-title {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--color-text-main);
    margin: 0 0 4px;
}

.action-desc {
    font-size: 0.88rem;
    color: var(--color-text-secondary);
    margin: 0;
    line-height: 1.45;
}

.action-card-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: 14px;
    border-top: 1px solid var(--color-surface-hover);
    font-size: 0.88rem;
    font-weight: 600;
    color: var(--color-primary);
}

.action-arrow {
    width: 18px;
    height: 18px;
    transition: transform 0.15s ease;
}

.action-card:hover .action-arrow {
    transform: translateX(4px);
}

/* =========================================================================
   11. VENTANAS FLOTANTES (MODALES Y NOTIFICACIONES TOAST)
   ========================================================================= */
/* Notificaciones Toast */
.toast-container {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 9999;
    display: flex;
    flex-direction: column;
    gap: 10px;
    max-width: 380px;
    width: calc(100% - 40px);
    pointer-events: none;
}

.toast-notificacion {
    pointer-events: auto;
    background-color: var(--color-surface);
    border-radius: var(--radius-md);
    padding: 14px 16px;
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--color-border);
    display: flex;
    align-items: flex-start;
    gap: 12px;
    transition: opacity 0.2s ease, transform 0.2s ease;
    animation: toastEntrada 0.2s ease forwards;
}

@keyframes toastEntrada {
    from {
        opacity: 0;
        transform: translateY(-8px) scale(0.98);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.toast-oculto {
    opacity: 0;
    transform: translateY(-8px);
}

.toast-icon {
    width: 22px;
    height: 22px;
    flex-shrink: 0;
    margin-top: 1px;
}

.toast-contenido {
    flex: 1;
    font-size: 0.9rem;
    color: var(--color-text-main);
}

.toast-titulo {
    display: block;
    font-size: 0.92rem;
    font-weight: 600;
    margin-bottom: 2px;
}

.toast-mensaje {
    color: var(--color-text-secondary);
    line-height: 1.4;
}

.toast-btn-cerrar {
    background: transparent;
    border: none;
    box-shadow: none;
    padding: 2px;
    cursor: pointer;
    color: var(--color-text-muted);
    width: 20px;
    height: 20px;
    flex-shrink: 0;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
}

.toast-btn-cerrar:hover {
    background-color: var(--color-surface-hover);
    color: var(--color-text-main);
}

.toast-exito {
    border-left: 4px solid var(--color-success);
}
.toast-exito .toast-icon {
    color: var(--color-success);
}

.toast-error {
    border-left: 4px solid var(--color-danger);
}
.toast-error .toast-icon {
    color: var(--color-danger);
}

.toast-advertencia {
    border-left: 4px solid var(--color-warning);
}
.toast-advertencia .toast-icon {
    color: var(--color-warning);
}

.toast-info {
    border-left: 4px solid var(--color-info);
}
.toast-info .toast-icon {
    color: var(--color-info);
}

/* Modal Flotante Backdrop */
.modal-backdrop {
    position: fixed;
    inset: 0;
    background-color: rgba(15, 23, 42, 0.45);
    backdrop-filter: blur(2px);
    z-index: 9000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    box-sizing: border-box;
    animation: backdropFade 0.15s ease forwards;
}

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

.modal-flotante {
    background-color: var(--color-surface);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    width: 100%;
    max-width: 480px;
    border: 1px solid var(--color-border);
    overflow: hidden;
    animation: modalSlide 0.18s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

@keyframes modalSlide {
    from {
        opacity: 0;
        transform: translateY(12px) scale(0.97);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.modal-flotante-header {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 20px 24px 16px;
    border-bottom: 1px solid var(--color-surface-hover);
}

.modal-flotante-icon {
    width: 32px;
    height: 32px;
    flex-shrink: 0;
}

.icon-exito { color: var(--color-success); }
.icon-error, .icon-peligro { color: var(--color-danger); }
.icon-advertencia { color: var(--color-warning); }
.icon-info { color: var(--color-info); }

.modal-flotante-titulo {
    margin: 0;
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--color-text-main);
}

.modal-flotante-body {
    padding: 20px 24px;
}

.modal-flotante-mensaje {
    margin: 0;
    font-size: 0.95rem;
    color: var(--color-text-secondary);
    line-height: 1.5;
}

.modal-flotante-campo {
    margin-top: 14px;
}

.modal-flotante-label {
    display: block;
    font-size: 0.88rem;
    font-weight: 600;
    color: var(--color-text-main);
    margin-bottom: 6px;
}

.modal-flotante-textarea {
    width: 100%;
    padding: 10px 12px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--color-border);
    font-family: inherit;
    font-size: 0.92rem;
    box-sizing: border-box;
}

.modal-flotante-error {
    color: var(--color-danger);
    font-size: 0.82rem;
    margin-top: 4px;
    display: block;
}

.modal-flotante-footer {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 12px;
    padding: 16px 24px;
    background-color: var(--color-surface-hover);
    border-top: 1px solid var(--color-border);
}

/* =========================================================================
   12. PANTALLAS DE REQUISICIONES (FOLIOS, CONSULTA, TABLAS)
   ========================================================================= */
.requisicion-hero {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 24px;
    padding: 24px 0 20px;
    border-bottom: 1px solid var(--color-border);
}

.requisicion-eyebrow {
    margin-bottom: 4px;
    color: var(--color-text-muted);
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 0.06em;
    text-transform: uppercase;
}

.requisicion-hero h1 {
    margin-bottom: 6px;
    font-size: 2rem;
    letter-spacing: 0;
}

.requisicion-subtitle {
    margin: 0;
    color: var(--color-text-secondary);
    font-size: 1rem;
}

.requisicion-hero-meta {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    flex-wrap: wrap;
    gap: 8px;
    padding-top: 6px;
}

.requisicion-status,
.requisicion-version {
    display: inline-flex;
    align-items: center;
    min-height: 30px;
    padding: 5px 10px;
    border-radius: var(--radius-full);
    font-size: 0.78rem;
    font-weight: 700;
    line-height: 1;
}

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

.requisicion-status.is-finalizada {
    background: var(--color-success-bg);
    border-color: var(--color-success-border);
    color: var(--color-success-text);
}

.requisicion-status.is-cancelado {
    background: var(--color-danger-bg);
    border-color: var(--color-danger-border);
    color: var(--color-danger-text);
}

.requisicion-version {
    background: var(--color-surface-hover);
    border: 1px solid var(--color-border);
    color: var(--color-text-secondary);
    font-weight: 600;
}

.requisicion-section {
    margin-top: 24px;
    padding: 20px;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
}

.requisicion-section-heading {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 16px;
}

.requisicion-section-heading h2 {
    margin: 0;
    font-size: 1.1rem;
}

.requisicion-section-heading p {
    margin: 0;
    color: var(--color-text-muted);
    font-size: 0.88rem;
}

.requisicion-info-grid,
.requisicion-detail-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 14px 24px;
}

.requisicion-info-item,
.requisicion-detail-item {
    min-width: 0;
}

.requisicion-info-item span,
.requisicion-detail-item > span {
    display: block;
    margin-bottom: 3px;
    color: var(--color-text-muted);
    font-size: 0.78rem;
    font-weight: 600;
}

.requisicion-info-item strong,
.requisicion-detail-item strong {
    display: block;
    color: var(--color-text-main);
    font-size: 0.94rem;
    font-weight: 600;
    overflow-wrap: anywhere;
}

.requisicion-detail-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.requisicion-observaciones {
    grid-column: 1 / -1;
    padding-top: 14px;
    border-top: 1px solid var(--color-border);
}

.requisicion-observaciones p {
    margin: 0;
    color: var(--color-text-secondary);
    white-space: pre-wrap;
}

.requisicion-action-controls {
    display: flow-root;
}

.requisicion-action-controls > form,
.requisicion-action-controls > div {
    margin-top: 12px;
}

.requisicion-action-controls > form:first-child,
.requisicion-action-controls > div:first-child {
    margin-top: 0;
}

.requisicion-history-section {
    margin-bottom: 28px;
}

.requisicion-document-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 12px;
}

.requisicion-document-link {
    display: flex;
    align-items: center;
    gap: 10px;
    min-width: 0;
    padding: 12px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    background: var(--color-surface);
    color: var(--color-text-main);
    text-decoration: none;
    transition: background-color 0.15s ease, border-color 0.15s ease;
}

.requisicion-document-link:hover {
    border-color: var(--color-primary-border);
    background: var(--color-primary-light);
    color: var(--color-text-main);
    text-decoration: none;
}

.requisicion-document-icon {
    display: inline-flex;
    flex: 0 0 32px;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    border-radius: var(--radius-sm);
    background: var(--color-surface-hover);
    color: var(--color-primary);
    font-size: 0.68rem;
    font-weight: 800;
}

.requisicion-document-link strong,
.requisicion-document-link small {
    display: block;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.requisicion-document-link strong {
    font-size: 0.88rem;
}

.requisicion-document-link small {
    margin-top: 2px;
    color: var(--color-text-muted);
    font-size: 0.75rem;
}

.vale-capture-section table {
    margin-bottom: 18px;
}

.vale-observaciones {
    max-width: 680px;
    margin-bottom: 16px;
}

.vale-observaciones label {
    display: inline-block;
    margin-bottom: 6px;
    color: var(--color-text-secondary);
    font-weight: 600;
}

.vale-form-actions {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 14px;
}

.vale-form-actions a {
    font-size: 0.9rem;
    font-weight: 600;
}

.vale-cancelado {
    border-color: var(--color-danger-border);
    background: var(--color-danger-bg);
}

.vale-cancelado p {
    margin-bottom: 8px;
}

.vale-cancelado p:last-child {
    margin-bottom: 0;
}

.vale-cancelar-section form {
    max-width: 680px;
}

.vale-back-link {
    margin: 20px 0 28px;
}

@media (max-width: 860px) {
    .requisicion-info-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .requisicion-document-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 600px) {
    .requisicion-hero,
    .requisicion-section-heading {
        display: block;
    }

    .requisicion-hero-meta {
        justify-content: flex-start;
        margin-top: 14px;
        padding-top: 0;
    }

    .requisicion-hero h1 {
        font-size: 1.55rem;
    }

    .requisicion-section {
        padding: 16px;
    }

    .requisicion-section-heading p {
        margin-top: 5px;
    }

    .requisicion-info-grid,
    .requisicion-detail-grid,
    .requisicion-document-grid {
        grid-template-columns: 1fr;
    }
}

.folios-empresas {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 24px;
}

.folios-empresa {
    background-color: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 20px;
    box-shadow: var(--shadow-sm);
}

.folios-empresa h2 {
    margin-top: 0;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--color-border);
    color: var(--color-text-main);
    font-size: 1.2rem;
}

.lista-folios {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-top: 12px;
}

.folio {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 14px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--color-primary-border);
    background-color: var(--color-primary-light);
    color: var(--color-primary);
    font-weight: 600;
    font-size: 0.92rem;
    text-decoration: none;
    transition: all 0.15s ease;
}

.folio:hover {
    background-color: #dbeafe;
    border-color: var(--color-primary);
    text-decoration: none;
}

.folio-en-captura {
    background-color: #fef3c7;
    border-color: #f59e0b;
    color: #92400e;
}

.folio-en-captura:hover {
    background-color: #fde68a;
    border-color: #d97706;
    color: #78350f;
}

.folio-bloqueado {
    background-color: var(--color-surface-hover);
    border-color: var(--color-border);
    color: var(--color-text-muted);
    font-weight: 500;
    cursor: not-allowed;
}

.descargas-copias {
    display: flex;
    gap: 12px;
    margin: 16px 0 22px;
    flex-wrap: wrap;
}

.descargas-copias a {
    padding: 8px 14px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--color-border);
    color: var(--color-text-main);
    text-decoration: none;
    background-color: var(--color-surface);
    font-weight: 500;
    font-size: 0.88rem;
    transition: all 0.15s ease;
}

.descargas-copias a:hover {
    background-color: var(--color-surface-hover);
    border-color: var(--color-border-hover);
}

.materiales-version-link {
    display: inline-flex;
    align-items: center;
    min-height: 28px;
    padding: 4px 9px;
    border: 1px solid var(--color-primary-border);
    border-radius: var(--radius-full);
    background: var(--color-primary-light);
    color: var(--color-primary);
    font-size: 0.78rem;
    font-weight: 700;
    text-decoration: none;
}

.materiales-version-link:hover {
    background: #dbeafe;
    color: var(--color-primary-hover);
    text-decoration: none;
}

/* =========================================================================
   12.1 TABLA DINÁMICA DE MATERIALES (COMPACTA, FLOTANTE, SCROLLABLE)
   ========================================================================= */
.form-grid-2 {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 18px;
}

.tabla-scroll-container {
    width: 100%;
    max-height: 480px;
    overflow-y: auto;
    overflow-x: auto;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    background-color: var(--color-surface);
    box-shadow: var(--shadow-sm);
    margin-bottom: 16px;
    position: relative;
}

/* Scrollbar estilizado sutil */
.tabla-scroll-container::-webkit-scrollbar {
    width: 7px;
    height: 7px;
}
.tabla-scroll-container::-webkit-scrollbar-track {
    background: #f1f5f9;
}
.tabla-scroll-container::-webkit-scrollbar-thumb {
    background: #cbd5e1;
    border-radius: 4px;
}
.tabla-scroll-container::-webkit-scrollbar-thumb:hover {
    background: #94a3b8;
}

.tabla-materiales-dinamica {
    width: 100%;
    margin-bottom: 0;
    border-collapse: separate;
    border-spacing: 0;
    border: none;
}

.tabla-materiales-dinamica thead th {
    position: sticky;
    top: 0;
    z-index: 20;
    background-color: #f8fafc;
    color: var(--color-text-main);
    font-size: 0.84rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.03em;
    padding: 12px 10px;
    border-bottom: 2px solid var(--color-border);
    border-top: none;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.03);
}

.tabla-materiales-dinamica tbody td {
    padding: 8px 8px;
    vertical-align: middle;
    border-bottom: 1px solid var(--color-border);
    background-color: var(--color-surface);
}

.tabla-materiales-dinamica tbody tr:hover td {
    background-color: #fafbfd;
}

/* Anchos de columnas */
.col-part { width: 55px; text-align: center; }
.col-desc { min-width: 280px; }
.col-codigo { width: 140px; }
.col-unidad { width: 95px; }
.col-cantidad { width: 110px; }
.col-disponible, .col-surtir, .col-comprar { width: 100px; text-align: center; }
.col-obs { min-width: 180px; }
.col-accion { width: 50px; text-align: center; }

/* Sustitución de materiales propuesta por Almacén (revisión unificada) */
.material-sustituido {
    color: var(--color-text-muted);
}

.fila-propuesta-almacen td {
    background-color: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
    padding-top: 0;
    padding-bottom: 10px;
}

.linea-propuesta-material {
    margin-top: 6px;
    padding: 6px 10px;
    background: var(--color-surface-hover);
    border-left: 3px solid var(--color-primary-border);
    border-radius: var(--radius-sm);
    font-size: 0.85rem;
    color: var(--color-text-secondary);
}

.linea-propuesta-material + .linea-propuesta-material {
    margin-top: 6px;
}

.linea-propuesta-material .etiqueta-no-registrado {
    color: var(--color-danger-text);
    font-style: italic;
}

/* Controles dentro de las celdas */
.tabla-materiales-dinamica input[type="text"],
.tabla-materiales-dinamica input[type="number"],
.tabla-materiales-dinamica textarea {
    padding: 7px 10px;
    font-size: 0.88rem;
    height: 36px;
    border-radius: var(--radius-sm);
}

.tabla-materiales-dinamica textarea {
    height: 36px;
    min-height: 36px;
    resize: none;
}

.part-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    background-color: var(--color-primary-light);
    color: var(--color-primary);
    font-weight: 700;
    font-size: 0.85rem;
    border-radius: var(--radius-full);
    border: 1px solid var(--color-primary-border);
}

/* Contenedor relativo de autocompletado en celda */
.material-search-cell {
    position: relative;
}

.resultados-productos {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    z-index: 50;
    max-height: 220px;
    overflow-y: auto;
    background-color: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow-xl);
    margin-top: 4px;
}

.resultado-producto {
    padding: 10px 14px;
    border-bottom: 1px solid var(--color-border);
    cursor: pointer;
    background-color: var(--color-surface);
    font-size: 0.88rem;
    transition: background-color 0.12s ease;
}

.resultado-producto:last-child {
    border-bottom: none;
}

.resultado-producto:hover {
    background-color: var(--color-primary-light);
    color: var(--color-primary);
}

.material-sin-codigo-mensaje {
    padding: 10px 12px;
    border-radius: var(--radius-sm);
    background-color: var(--color-warning-bg);
    border: 1px solid var(--color-warning-border);
    color: var(--color-warning-text);
    margin: 4px;
    font-size: 0.85rem;
}

/* Botón de eliminar fila */
.btn-icon-danger {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    padding: 0;
    border-radius: var(--radius-sm);
    background-color: transparent;
    color: var(--color-danger);
    border: 1px solid transparent;
    cursor: pointer;
    box-shadow: none;
    transition: all 0.15s ease;
}

.btn-icon-danger:hover {
    background-color: var(--color-danger-bg);
    border-color: var(--color-danger-border);
    color: var(--color-danger-hover);
}

.materiales-toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 12px;
    flex-wrap: wrap;
}

.matriz-asignaciones {
    max-width: 900px;
}

.matriz-asignaciones h2 {
    margin-top: 30px;
    border-bottom: 1px solid var(--color-border);
    padding-bottom: 8px;
}

.bloque-asignacion {
    display: flex;
    gap: 18px;
    align-items: center;
    margin: 12px 0;
    padding: 14px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    background-color: var(--color-surface);
}

.casilla-asignacion {
    display: inline-flex;
    gap: 6px;
    align-items: center;
}

/* =========================================================================
   13. TABLAS GENERALES
   ========================================================================= */
table {
    width: 100%;
    border-collapse: collapse;
    background-color: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    overflow: hidden;
    margin-bottom: 24px;
}

th, td {
    padding: 12px 14px;
    text-align: left;
    border-bottom: 1px solid var(--color-border);
    font-size: 0.92rem;
}

th {
    background-color: var(--color-surface-hover);
    font-weight: 600;
    color: var(--color-text-main);
}

tr:last-child td {
    border-bottom: none;
}

tr:hover td {
    background-color: #f8fafc;
}

/* =========================================================================
   14. RESPONSIVIDAD
   ========================================================================= */
@media (max-width: 768px) {
    .nav-container {
        flex-direction: column;
        height: auto;
        padding: 14px 16px;
        gap: 12px;
    }

    .menu-principal {
        flex-wrap: wrap;
        justify-content: center;
        gap: 4px;
    }

    .user-menu {
        margin-left: 0;
        width: 100%;
        justify-content: space-between;
        padding-top: 8px;
        border-top: 1px solid var(--color-border);
    }

    .contenedor-principal {
        padding: 20px 16px;
    }

    .welcome-hero {
        padding: 24px 20px;
    }

    .quick-actions-grid {
        grid-template-columns: 1fr;
    }

    .kpi-grid {
        grid-template-columns: 1fr;
    }
}