/* ============================================
   CSS COMPARTIDO Y RESPONSIVE - SISTEMA LA UNION
   ============================================ */

/* Variables CSS */
:root {
    --primary-color: #2563eb;
    --primary-dark: #1e40af;
    --primary-light: #3b82f6;
    --secondary-color: #64748b;
    --success-color: #10b981;
    --danger-color: #ef4444;
    --warning-color: #f59e0b;
    --info-color: #06b6d4;
    --bg-color: #f8fafc;
    --card-bg: #ffffff;
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --border-color: #e2e8f0;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --radius: 8px;
    --radius-lg: 12px;
    --transition: all 0.3s ease;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-primary);
    line-height: 1.6;
    font-size: 16px;
}

/* Header/Navegación */
.header {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: white;
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: var(--shadow-md);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.header span {
    font-weight: 600;
    font-size: 1.1rem;
}

.header > div,
.header a {
    display: flex;
    gap: 1rem;
    align-items: center;
}

.header a {
    color: white;
    text-decoration: none;
    padding: 0.5rem 1rem;
    border-radius: var(--radius);
    transition: var(--transition);
    background: rgba(255, 255, 255, 0.1);
}

.header a:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
}

/* Container Principal */
.container {
    max-width: 1400px;
    margin: 2rem auto;
    padding: 0 1.5rem;
}

/* Cards */
.card {
    background: var(--card-bg);
    border-radius: var(--radius-lg);
    padding: 2rem;
    box-shadow: var(--shadow-md);
    margin-bottom: 2rem;
}

/* Títulos */
h1, h2, h3, h4, h5, h6 {
    color: var(--text-primary);
    margin-bottom: 1rem;
    font-weight: 700;
}

h2 {
    font-size: 2rem;
    margin-bottom: 1.5rem;
}

h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

/* Formularios */
form {
    background: var(--card-bg);
    padding: 2rem;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    margin-bottom: 2rem;
}

.form-group {
    margin-bottom: 1.5rem;
}

label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
    font-weight: 500;
    font-size: 0.95rem;
}

input[type="text"],
input[type="password"],
input[type="email"],
input[type="number"],
input[type="date"],
input[type="file"],
select,
textarea {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 2px solid var(--border-color);
    border-radius: var(--radius);
    font-size: 1rem;
    transition: var(--transition);
    background: white;
}

input:focus,
select:focus,
textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

/* Botones */
button,
.btn {
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: var(--radius);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
    display: inline-block;
    text-align: center;
}

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

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-secondary {
    background: var(--secondary-color);
    color: white;
}

.btn-secondary:hover {
    background: #475569;
}

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

.btn-success:hover {
    background: #059669;
}

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

.btn-danger:hover {
    background: #dc2626;
}

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

.btn-warning:hover {
    background: #d97706;
}

.btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
}

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

/* Botón Volver */
.back {
    display: inline-block;
    margin-bottom: 1.5rem;
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
}

.back:hover {
    color: var(--primary-dark);
    transform: translateX(-5px);
}

.back::before {
    content: "← ";
    margin-right: 0.5rem;
}

/* Tablas */
table {
    width: 100%;
    border-collapse: collapse;
    background: var(--card-bg);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    margin-bottom: 2rem;
}

thead {
    background: var(--primary-color);
    color: white;
}

th {
    padding: 1rem;
    text-align: left;
    font-weight: 600;
    font-size: 0.95rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

td {
    padding: 1rem;
    border-bottom: 1px solid var(--border-color);
}

tbody tr {
    transition: var(--transition);
}

tbody tr:hover {
    background: #f8fafc;
}

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

/* Mensajes */
.message {
    padding: 1rem 1.5rem;
    border-radius: var(--radius);
    margin-bottom: 1.5rem;
    font-weight: 500;
}

.mensaje-exito,
.message-success {
    background: #d1fae5;
    color: #065f46;
    border-left: 4px solid var(--success-color);
}

.mensaje-error,
.message-error {
    background: #fee2e2;
    color: #991b1b;
    border-left: 4px solid var(--danger-color);
}

.mensaje-info,
.message-info {
    background: #dbeafe;
    color: #1e40af;
    border-left: 4px solid var(--info-color);
}

.mensaje-warning,
.message-warning {
    background: #fef3c7;
    color: #92400e;
    border-left: 4px solid var(--warning-color);
}

/* Dashboard/Grid de Links */
.links-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
    margin-top: 2rem;
}

.dashboard-link {
    text-decoration: none;
    color: inherit;
}

.dashboard-item {
    background: var(--card-bg);
    padding: 2rem;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    border: 2px solid transparent;
}

.dashboard-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-color);
}

.dashboard-item h3 {
    color: var(--primary-color);
    margin-bottom: 0.5rem;
    font-size: 1.5rem;
}

.dashboard-item p {
    color: var(--text-secondary);
    margin: 0;
}

/* Resultados/Búsqueda */
.resultados {
    margin-top: 2rem;
}

.search-form {
    display: flex;
    gap: 1rem;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.search-form input {
    flex: 1;
    min-width: 200px;
}

.search-form button {
    white-space: nowrap;
}

/* Filtros */
.filter-container {
    background: var(--card-bg);
    padding: 1.5rem;
    border-radius: var(--radius);
    margin-bottom: 2rem;
    box-shadow: var(--shadow-sm);
}

/* Acciones en Tablas */
.actions {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.actions form {
    display: inline;
    margin: 0;
    padding: 0;
    background: none;
    box-shadow: none;
}

.actions button {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
}

/* Totales/Resumen */
.total-container {
    background: linear-gradient(135deg, #f1f5f9 0%, #e2e8f0 100%);
    padding: 1.5rem;
    border-radius: var(--radius);
    margin-top: 1.5rem;
    border-left: 4px solid var(--primary-color);
}

.total-container h4 {
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

/* Estadísticas */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.stat-card {
    background: var(--card-bg);
    padding: 1.5rem;
    border-radius: var(--radius);
    box-shadow: var(--shadow-sm);
    text-align: center;
    border-top: 4px solid var(--primary-color);
}

.stat-card h3 {
    font-size: 2rem;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.stat-card p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin: 0;
}

/* Badges */
.badge {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    border-radius: 9999px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.badge-success {
    background: #d1fae5;
    color: #065f46;
}

.badge-danger {
    background: #fee2e2;
    color: #991b1b;
}

.badge-warning {
    background: #fef3c7;
    color: #92400e;
}

.badge-info {
    background: #dbeafe;
    color: #1e40af;
}

/* Loading Spinner */
.spinner {
    border: 3px solid var(--border-color);
    border-top: 3px solid var(--primary-color);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    animation: spin 1s linear infinite;
    margin: 2rem auto;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Utilidades */
.text-center {
    text-align: center;
}

.text-right {
    text-align: right;
}

.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; }

.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.mb-4 { margin-bottom: 2rem; }

.hidden {
    display: none;
}

/* Responsive Design */
@media (max-width: 768px) {
    .container {
        padding: 0 1rem;
        margin: 1rem auto;
    }

    .header {
        flex-direction: column;
        gap: 1rem;
        padding: 1rem;
    }

    .header > div {
        flex-direction: column;
        width: 100%;
    }

    .header a {
        width: 100%;
        justify-content: center;
    }

    h2 {
        font-size: 1.5rem;
    }

    h3 {
        font-size: 1.25rem;
    }

    form {
        padding: 1.5rem;
    }

    .card {
        padding: 1.5rem;
    }

    .links-container {
        grid-template-columns: 1fr;
    }

    /* --- TABLAS RESPONSIVE TIPO TARJETA --- */
    /* Ocultamos los encabezados de tabla tradicionales */
    thead {
        display: none;
    }

    /* Hacemos que las celdas y filas sean bloques */
    table, tbody, th, td, tr {
        display: block;
        width: 100%;
    }

    /* Estilo de tarjeta para cada fila */
    tr {
        margin-bottom: 1.5rem;
        background: var(--card-bg);
        border: 1px solid var(--border-color);
        border-radius: var(--radius);
        box-shadow: var(--shadow-sm);
        padding: 0.5rem;
    }

    /* Estilo de cada celda (ahora fila dentro de la tarjeta) */
    td {
        text-align: right;
        padding: 0.75rem 0.5rem;
        position: relative;
        border-bottom: 1px solid #f1f5f9;
        display: flex;
        justify-content: space-between;
        align-items: center;
        min-height: 3rem;
    }

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

    /* Usamos el atributo data-label para mostrar el título del campo */
    td::before {
        content: attr(data-label);
        font-weight: 700;
        color: var(--text-secondary);
        text-align: left;
        margin-right: 1rem;
        flex: 1;
    }

    /* Celdas especiales que contienen formularios o botones (Acciones) */
    td.td-actions, td:has(form) {
        flex-direction: column;
        align-items: stretch;
        text-align: left;
        background-color: #f8fafc;
        margin-top: 0.5rem;
        border-radius: var(--radius);
    }

    td.td-actions::before, td:has(form)::before {
        margin-bottom: 0.5rem;
        color: var(--primary-color);
    }

    /* Ajustes para inputs dentro de las tablas en móvil */
    td form {
        padding: 0;
        box-shadow: none;
        background: transparent;
        margin: 0;
    }

    td form input,
    td form select,
    td form button {
        width: 100%;
        margin-bottom: 0.5rem;
        height: 45px; /* Mayor área táctil */
    }

    .search-form {
        flex-direction: column;
    }

    .search-form input,
    .search-form button {
        width: 100%;
    }

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

    .actions {
        flex-direction: column;
    }

    .actions button {
        width: 100%;
    }
}

@media (max-width: 480px) {
    body {
        font-size: 14px;
    }

    .container {
        margin: 0.5rem auto;
    }

    form {
        padding: 1rem;
    }

    .card {
        padding: 1rem;
    }

    button,
    .btn {
        padding: 0.625rem 1.25rem;
        font-size: 0.875rem;
    }

    input,
    select,
    textarea {
        padding: 0.625rem;
        font-size: 0.875rem;
    }
}

/* Print Styles */
@media print {
    .header,
    .back,
    .actions,
    button,
    .btn {
        display: none;
    }

    .container {
        max-width: 100%;
        margin: 0;
        padding: 0;
    }

    table {
        box-shadow: none;
        border: 1px solid #000;
    }

    .card {
        box-shadow: none;
        border: 1px solid #000;
    }
}