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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f5f5f5;
}

/* Navbar */
.navbar {
    background-color: #2c3e50;
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-brand a {
    color: white;
    text-decoration: none;
    font-size: 1.25rem;
    font-weight: bold;
}

.nav-links {
    list-style: none;
    display: flex;
    gap: 1.5rem;
}

.nav-links a {
    color: #ecf0f1;
    text-decoration: none;
}

.nav-links a:hover {
    color: #3498db;
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
}

/* Page header */
.page-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
}

.page-header h1 {
    color: #2c3e50;
}

.header-actions,
.header-buttons {
    display: flex;
    gap: 0.5rem;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.5rem 1rem;
    background-color: #3498db;
    color: white;
    text-decoration: none;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 0.9rem;
}

.btn:hover {
    background-color: #2980b9;
}

.btn-primary {
    background-color: #27ae60;
}

.btn-primary:hover {
    background-color: #219a52;
}

.btn-secondary {
    background-color: #95a5a6;
}

.btn-secondary:hover {
    background-color: #7f8c8d;
}

.btn-danger {
    background-color: #e74c3c;
}

.btn-danger:hover {
    background-color: #c0392b;
}

.btn-small {
    padding: 0.25rem 0.5rem;
    font-size: 0.8rem;
}

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

.stat-card {
    background: white;
    padding: 1.5rem;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    text-align: center;
}

.stat-card h3 {
    font-size: 2.5rem;
    color: #3498db;
    margin-bottom: 0.5rem;
}

.stat-card p {
    color: #7f8c8d;
    margin-bottom: 1rem;
}

/* Quick actions */
.quick-actions {
    background: white;
    padding: 1.5rem;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.quick-actions h2 {
    margin-bottom: 1rem;
    color: #2c3e50;
}

.quick-actions .btn {
    margin-right: 0.5rem;
}

/* Tables */
.data-table {
    width: 100%;
    background: white;
    border-collapse: collapse;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.data-table th,
.data-table td {
    padding: 1rem;
    text-align: left;
    border-bottom: 1px solid #ecf0f1;
}

.data-table th {
    background-color: #34495e;
    color: white;
    user-select: none;
}

.data-table th.sortable {
    cursor: pointer;
    position: relative;
    padding-right: 1.5rem;
}

.data-table th.sortable:hover {
    background-color: #2c3e50;
}

.data-table th.sortable a {
    color: white;
    text-decoration: none;
    display: block;
}

.data-table th.sortable a:hover {
    color: #3498db;
}

.data-table th.sortable::after {
    content: '⇅';
    position: absolute;
    right: 0.5rem;
    top: 50%;
    transform: translateY(-50%);
    opacity: 0.5;
    font-size: 0.8rem;
}

.data-table th.sortable.asc::after {
    content: '↑';
    opacity: 1;
}

.data-table th.sortable.desc::after {
    content: '↓';
    opacity: 1;
}

.data-table tr:hover {
    background-color: #f8f9fa;
}

.data-table .empty {
    text-align: center;
    color: #95a5a6;
    padding: 2rem;
}

.data-table .actions {
    display: flex;
    gap: 0.25rem;
}

/* Filters */
.filters {
    background: white;
    padding: 1rem;
    border-radius: 8px;
    margin-bottom: 1rem;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.filter-form {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    align-items: center;
}

.filter-form select {
    padding: 0.5rem;
    border: 1px solid #ddd;
    border-radius: 4px;
    min-width: 150px;
}

.checkbox-filter {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
    white-space: nowrap;
}

.checkbox-filter input[type="checkbox"] {
    width: 1rem;
    height: 1rem;
    cursor: pointer;
}

.total-results {
    color: #7f8c8d;
    margin-bottom: 1rem;
}

/* Pagination */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 1rem;
    margin-top: 1.5rem;
}

/* Forms */
.form {
    background: white;
    padding: 2rem;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    max-width: 600px;
}

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

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: #2c3e50;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 1rem;
}

.form-group input:focus,
.form-group select:focus {
    border-color: #3498db;
    outline: none;
}

.form-group small {
    display: block;
    margin-top: 0.25rem;
    color: #95a5a6;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.form-actions {
    margin-top: 2rem;
}

/* Detail view */
.detalle-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
}

@media (max-width: 768px) {
    .detalle-grid {
        grid-template-columns: 1fr;
    }
}

.detalle-info {
    background: white;
    padding: 1.5rem;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.detalle-info h2 {
    margin-bottom: 1rem;
    color: #2c3e50;
    border-bottom: 2px solid #3498db;
    padding-bottom: 0.5rem;
}

.detalle-info dl {
    display: grid;
    grid-template-columns: 150px 1fr;
    gap: 0.75rem;
}

.detalle-info dt {
    font-weight: 500;
    color: #7f8c8d;
}

.detalle-info dd {
    color: #2c3e50;
}

.detalle-foto {
    background: white;
    padding: 1.5rem;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.detalle-foto h2 {
    margin-bottom: 1rem;
    color: #2c3e50;
    border-bottom: 2px solid #3498db;
    padding-bottom: 0.5rem;
}

.foto-lectura {
    max-width: 100%;
    height: auto;
    border-radius: 4px;
}

.foto-preview {
    max-width: 200px;
    height: auto;
    border-radius: 4px;
    margin-top: 0.5rem;
}

.no-foto {
    color: #95a5a6;
    font-style: italic;
}

/* Edit context */
.edit-context {
    background: #f8f9fa;
    padding: 1rem;
    border-radius: 4px;
    margin-bottom: 1.5rem;
}

.edit-context p {
    margin: 0.25rem 0;
}

/* Danger zone */
.danger-zone {
    margin-top: 2rem;
    padding: 1.5rem;
    background: #fff5f5;
    border: 1px solid #fed7d7;
    border-radius: 8px;
}

.danger-zone h3 {
    color: #c53030;
    margin-bottom: 1rem;
}

/* Alerts */
.alert {
    padding: 1rem;
    border-radius: 4px;
    margin-bottom: 1rem;
}

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

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

/* Footer */
.footer {
    text-align: center;
    padding: 2rem;
    color: #95a5a6;
    margin-top: 2rem;
}