/* Estilos globales */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    padding: 20px;
    color: #333;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
}

/* Navbar */
.navbar {
    background: rgba(255, 255, 255, 0.95);
    padding: 1rem 0;
    margin-bottom: 2rem;
    border-radius: 10px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 2rem;
}

.navbar h1 {
    color: #667eea;
    font-size: 1.8rem;
}

/* Tarjetas */
.card {
    background: white;
    border-radius: 15px;
    padding: 2rem;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
    margin-bottom: 2rem;
}

.card h2 {
    color: #667eea;
    margin-bottom: 1.5rem;
    font-size: 1.8rem;
}

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

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: #555;
}

.form-group input,
.form-group textarea,
.search-input {
    width: 100%;
    padding: 0.75rem;
    border: 2px solid #e0e0e0;
    border-radius: 8px;
    font-size: 1rem;
    transition: all 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus,
.search-input:focus {
    outline: none;
    border-color: #667eea;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.form-group textarea {
    resize: vertical;
    font-family: inherit;
}

/* Botones */
.btn-primary,
.btn-secondary,
.btn-admin,
.btn-edit,
.btn-delete {
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    display: inline-block;
}

.btn-primary {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    width: 100%;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(102, 126, 234, 0.4);
}

.btn-secondary {
    background: #6c757d;
    color: white;
}

.btn-secondary:hover {
    background: #5a6268;
}

.btn-admin {
    background: #28a745;
    color: white;
}

.btn-admin:hover {
    background: #218838;
    transform: translateY(-2px);
}

.btn-edit {
    background: #ffc107;
    padding: 0.4rem 0.8rem;
    font-size: 0.9rem;
    margin-right: 0.5rem;
}

.btn-edit:hover {
    background: #e0a800;
}

.btn-delete {
    background: #dc3545;
    color: white;
    padding: 0.4rem 0.8rem;
    font-size: 0.9rem;
}

.btn-delete:hover {
    background: #c82333;
}

/* Mensajes */
.mensaje {
    padding: 1rem;
    border-radius: 8px;
    margin-top: 1rem;
    display: none;
    animation: slideIn 0.3s ease;
}

.mensaje.success {
    background: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

.mensaje.error {
    background: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Panel Admin */
.admin-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
}

.filter-section {
    margin-bottom: 1.5rem;
}

.search-input {
    max-width: 400px;
}

.loading {
    text-align: center;
    padding: 2rem;
    color: #667eea;
    font-size: 1.2rem;
}

/* Tabla */
.table-container {
    overflow-x: auto;
    margin: 1.5rem 0;
}

table {
    width: 100%;
    border-collapse: collapse;
    background: white;
}

thead {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

th {
    padding: 1rem;
    text-align: left;
    font-weight: 600;
}

td {
    padding: 0.75rem 1rem;
    border-bottom: 1px solid #e0e0e0;
}

tbody tr:hover {
    background: #f8f9fa;
}

.action-buttons {
    white-space: nowrap;
}

.no-data {
    text-align: center;
    padding: 2rem;
    color: #999;
    font-style: italic;
}

/* Estadísticas */
.stats {
    margin-top: 1.5rem;
    padding: 1rem;
    background: #f8f9fa;
    border-radius: 8px;
    text-align: center;
}

.stats p {
    font-size: 1.1rem;
    color: #555;
}

.stats span {
    font-weight: bold;
    color: #667eea;
    font-size: 1.3rem;
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: auto;
    background-color: rgba(0, 0, 0, 0.5);
    animation: fadeIn 0.3s ease;
}

.modal-content {
    background-color: white;
    margin: 5% auto;
    padding: 2rem;
    border-radius: 15px;
    width: 90%;
    max-width: 600px;
    box-shadow: 0 10px 50px rgba(0, 0, 0, 0.3);
    animation: slideDown 0.3s ease;
}

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

@keyframes slideDown {
    from {
        transform: translateY(-50px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.close {
    color: #aaa;
    float: right;
    font-size: 28px;
    font-weight: bold;
    cursor: pointer;
    transition: color 0.3s ease;
}

.close:hover,
.close:focus {
    color: #000;
}

.modal-buttons {
    display: flex;
    gap: 1rem;
    margin-top: 1.5rem;
}

.modal-buttons button {
    flex: 1;
}

/* Responsive */
@media (max-width: 768px) {
    .navbar .container {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }

    .card {
        padding: 1.5rem;
    }

    .admin-header {
        flex-direction: column;
        gap: 1rem;
        align-items: stretch;
    }

    .search-input {
        max-width: 100%;
    }

    table {
        font-size: 0.9rem;
    }

    th, td {
        padding: 0.5rem;
    }

    .modal-content {
        width: 95%;
        margin: 10% auto;
        padding: 1.5rem;
    }

    .modal-buttons {
        flex-direction: column;
    }
}

@media (max-width: 480px) {
    body {
        padding: 10px;
    }

    .navbar h1 {
        font-size: 1.4rem;
    }

    .card h2 {
        font-size: 1.4rem;
    }

    table {
        font-size: 0.8rem;
    }

    .btn-edit,
    .btn-delete {
        padding: 0.3rem 0.6rem;
        font-size: 0.8rem;
    }
}