@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;700&display=swap');

:root {
    --primary-color: #007bff;
    --primary-hover: #0056b3;
    --danger-color: #dc3545;
    --danger-hover: #c82333;
    --success-color: #28a745;
    --neutral-color: #6c757d;
    --secondary-color: #6c757d;
    --secondary-hover: #5a6268;
    --light-gray: #f8f9fa;
    --border-color: #dee2e6;
    --text-color: #333;
    --card-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
    --border-radius: 8px;
    /* Nuevo color para alertas de advertencia */
    --warning-bg: #fff3cd;
    --warning-border: #ffeeba;
    --warning-text: #856404;
}

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--light-gray);
    color: var(--text-color);
    margin: 0;
    line-height: 1.6;
}

/* --- ESTILOS DE LOGIN PROFESIONALES --- */
.login-body {
    background-color: #eef2f5; 
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
}

.login-container {
    max-width: 420px;
    width: 100%;
    margin: 1rem;
    padding: 0; 
    background: #fff;
    border-radius: var(--border-radius);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
    overflow: hidden;
}

.login-header {
    background-color: var(--primary-color);
    color: white;
    padding: 2.5rem 3rem;
    text-align: center;
}

.login-header h2 {
    margin: 0;
    font-weight: 700;
    font-size: 1.6rem;
}

.login-body-form {
    padding: 2.5rem 3rem;
}

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

.login-container .form-group label {
    font-weight: 500;
    margin-bottom: 0.6rem;
    color: #555;
}

.login-container .form-group input {
    font-size: 1rem;
    padding: 0.8rem;
    background: #fff;
    border: 1px solid var(--border-color);
}

.btn-login {
    width: 100%;
    padding: 0.8rem;
    font-size: 1rem;
    margin-top: 0.5rem;
    background-color: var(--primary-color);
    box-shadow: 0 4px 15px rgba(0, 123, 255, 0.2);
    border: none;
}

.btn-login:hover {
    background-color: var(--primary-hover); 
    box-shadow: 0 6px 20px rgba(0, 123, 255, 0.3);
    transform: translateY(-2px);
}
/* --- FIN ESTILOS DE LOGIN --- */


.main-container {
    max-width: 1400px;
    margin: 2rem auto;
    padding: 1rem;
}

.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    background: #fff;
    padding: 1rem 2rem;
    border-radius: var(--border-radius);
    box-shadow: var(--card-shadow);
}

.header h1 {
    margin: 0;
    font-size: 1.75rem;
}

.user-info {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.card {
    background-color: #fff;
    border-radius: var(--border-radius);
    padding: 2rem;
    margin-bottom: 2rem;
    box-shadow: var(--card-shadow);
}

.form-group {
    margin-bottom: 1.25rem;
}

.form-group label {
    display: block;
    font-weight: 500;
    margin-bottom: 0.5rem;
    color: #555;
}

.form-group input[type="text"],
.form-group input[type="password"],
.form-group input[type="date"],
.form-group input[type="number"],
.form-group input[type="file"],
.form-group select, /* Añadido select */
.form-group textarea {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    box-sizing: border-box; 
    transition: border-color 0.3s, box-shadow 0.3s;
    font-family: 'Inter', sans-serif; /* Heredar fuente */
    font-size: 0.95rem; /* Tamaño de fuente consistente */
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(0, 123, 255, 0.15);
}

.form-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
}

.full-width {
    grid-column: 1 / -1;
}

/* --- ESTILOS DE LA TABLA MEJORADOS --- */
.table-responsive {
    overflow-x: auto;
}

table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 1.5rem;
}

table th, table td {
    padding: 0.75rem 1rem; /* Padding ajustado */
    text-align: left;
    vertical-align: middle;
    font-size: 0.9rem; /* Fuente más pequeña */
    border-bottom: 1px solid #e9ecef; /* Líneas de separación */
}

table th {
    background-color: #f8f9fa;
    font-weight: 700;
    color: #495057;
    border-bottom: 2px solid var(--border-color);
    white-space: nowrap; /* Evitar que los títulos se partan */
}

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

table tbody tr:hover {
    background-color: #f1f3f5;
}

.currency {
    text-align: right;
    font-weight: 500;
    white-space: nowrap;
}

.success { color: var(--success-color) !important; } /* !important para sobreescribir */
.danger { color: var(--danger-color) !important; }
.neutral { color: var(--neutral-color) !important; }
/* --- FIN DE ESTILOS DE TABLA --- */

.btn, .btn-submit, .btn-danger, .btn-secondary, .btn-view, .btn-edit, .btn-delete {
    display: inline-block;
    padding: 0.6rem 1.2rem;
    border: none;
    border-radius: 6px;
    font-weight: 500;
    text-decoration: none;
    color: #fff;
    cursor: pointer;
    transition: background-color 0.3s, transform 0.2s, box-shadow 0.3s;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    text-align: center;
}

.btn:hover, .btn-submit:hover, .btn-danger:hover, .btn-secondary:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0,0,0,0.15);
}

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

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

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

.btn-view { background-color: #17a2b8; padding: 0.3rem 0.6rem; font-size: 0.8rem; }
.btn-view:hover { background-color: #138496; }

.btn-edit { background-color: #ffc107; color: #212529; padding: 0.3rem 0.6rem; font-size: 0.8rem; }
.btn-edit:hover { background-color: #e0a800; }

.btn-delete { background-color: var(--danger-color); padding: 0.3rem 0.6rem; font-size: 0.8rem; }

.actions-cell {
    display: flex;
    gap: 0.5rem;
    align-items: center;
    white-space: nowrap;
}

.actions-cell form {
    margin: 0;
}

.filter-form {
    display: flex;
    flex-wrap: wrap; /* Para que se ajuste en móviles */
    gap: 1rem;
    align-items: flex-end;
    margin-bottom: 1.5rem;
}

.filter-form .form-group {
    margin-bottom: 0; /* Quitar margen inferior en filtros */
}

.alert {
    padding: 1rem;
    margin-bottom: 1rem;
    border-radius: 6px;
    border: 1px solid transparent;
}
.alert-danger { color: #721c24; background-color: #f8d7da; border-color: #f5c6cb; }
.alert-success { color: #155724; background-color: #d4edda; border-color: #c3e6cb; }

/* Nuevo estilo para alerta de saldo bajo */
.alert-warning {
    color: var(--warning-text);
    background-color: var(--warning-bg);
    border-color: var(--warning-border);
}

/* --- Estilos para la página de Usuarios y Configuración --- */
.settings-form {
    max-width: 500px;
}

.users-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
}

.form-group .help-block { /* Estilo para mensajes de error en formularios */
    color: var(--danger-color);
    font-size: 0.85rem;
    margin-top: 0.25rem;
}

.form-group.has-error input,
.form-group.has-error select {
    border-color: var(--danger-color);
}

.form-group small { /* Texto de ayuda en formularios */
    display: block;
    margin-top: 0.5rem;
    color: #6c757d;
    font-size: 0.85rem;
}

@media (min-width: 992px) {
    .users-grid {
        /* Dos columnas en pantallas grandes */
        grid-template-columns: 1fr 1fr; 
    }
}