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

:root {
    --primary: #0066cc;
    --primary-dark: #0052a3;
    --secondary: #6c757d;
    --success: #28a745;
    --danger: #dc3545;
    --warning: #ffc107;
    --light: #f8f9fa;
    --dark: #343a40;
    --border: #dee2e6;
    --shadow: 0 2px 4px rgba(0,0,0,0.1);
    --shadow-lg: 0 4px 6px rgba(0,0,0,0.1);
}

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

.navbar {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: white;
    padding: 1rem 0;
    box-shadow: var(--shadow-lg);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.navbar h1 {
    font-size: 1.5rem;
    font-weight: 600;
}

.nav-links {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.nav-btn {
    background: rgba(255,255,255,0.2);
    border: none;
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 6px;
    cursor: pointer;
    font-size: 0.95rem;
    transition: all 0.3s;
}

.nav-btn:hover {
    background: rgba(255,255,255,0.3);
}

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

.container {
    max-width: 1400px;
    margin: 2rem auto;
    padding: 0 2rem;
}

.page {
    display: none;
    animation: fadeIn 0.3s;
}

.page.active {
    display: block;
}

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

.page-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    flex-wrap: wrap;
    gap: 1rem;
}

.page-header h2 {
    font-size: 2rem;
    color: var(--dark);
}

.header-actions {
    display: flex;
    gap: 1rem;
    align-items: center;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.stat-card {
    background: white;
    padding: 1.5rem;
    border-radius: 10px;
    box-shadow: var(--shadow);
    transition: transform 0.3s, box-shadow 0.3s;
}

.stat-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.stat-card h3 {
    font-size: 0.9rem;
    color: var(--secondary);
    margin-bottom: 0.5rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary);
}

.section {
    background: white;
    padding: 2rem;
    border-radius: 10px;
    box-shadow: var(--shadow);
    margin-bottom: 2rem;
}

.section h3 {
    margin-bottom: 1.5rem;
    color: var(--dark);
}

.action-buttons {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.btn {
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 6px;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.3s;
    font-weight: 500;
}

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

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-1px);
    box-shadow: var(--shadow);
}

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

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

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

.btn-success:hover {
    background: #218838;
}

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

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

.btn-sm {
    padding: 0.4rem 0.8rem;
    font-size: 0.85rem;
}

.filters-panel {
    margin-bottom: 1.5rem;
}

.filters {
    display: flex;
    gap: 1rem;
    margin-bottom: 1rem;
    flex-wrap: wrap;
}

.filters input,
.filters select {
    padding: 0.75rem;
    border: 1px solid var(--border);
    border-radius: 6px;
    font-size: 1rem;
    flex: 1;
    min-width: 150px;
}

.bulk-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem;
    background: #e7f3ff;
    border-radius: 6px;
    flex-wrap: wrap;
}

.bulk-actions span {
    font-weight: 600;
    color: var(--primary);
}

.bulk-actions select {
    flex: 1;
    min-width: 200px;
    max-width: 300px;
}

.cliente-checkbox {
    width: 18px;
    height: 18px;
    cursor: pointer;
}

.table-container {
    background: white;
    border-radius: 10px;
    box-shadow: var(--shadow);
    overflow-x: auto;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
}

.data-table thead {
    background: var(--light);
}

.data-table th {
    padding: 1rem;
    text-align: left;
    font-weight: 600;
    color: var(--dark);
    border-bottom: 2px solid var(--border);
}

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

.data-table tbody tr:hover {
    background: var(--light);
}

.data-table .actions {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.tag {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 500;
}

.tag-success {
    background: #d4edda;
    color: #155724;
}

.tag-danger {
    background: #f8d7da;
    color: #721c24;
}

.tag-primary {
    background: #cce5ff;
    color: var(--primary-dark);
}

.modal {
    display: none;
    position: fixed;
    z-index: 2000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.5);
    animation: fadeIn 0.3s;
}

.modal.active {
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-content {
    background: white;
    padding: 2rem;
    border-radius: 10px;
    max-width: 600px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
    position: relative;
    box-shadow: 0 10px 40px rgba(0,0,0,0.2);
}

.close {
    position: absolute;
    right: 1rem;
    top: 1rem;
    font-size: 2rem;
    font-weight: bold;
    cursor: pointer;
    color: var(--secondary);
    line-height: 1;
}

.close:hover {
    color: var(--dark);
}

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

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--dark);
}

.form-group input,
.form-group select {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--border);
    border-radius: 6px;
    font-size: 1rem;
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(0,102,204,0.1);
}

.form-actions {
    display: flex;
    gap: 1rem;
    justify-content: flex-end;
    margin-top: 2rem;
}

.asignaciones-grid {
    display: grid;
    gap: 1.5rem;
}

.dia-section {
    background: white;
    padding: 1.5rem;
    border-radius: 10px;
    box-shadow: var(--shadow);
}

.dia-section h3 {
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid var(--primary);
    color: var(--primary);
}

.asignacion-item {
    padding: 1rem;
    border: 1px solid var(--border);
    border-radius: 6px;
    margin-bottom: 0.75rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.asignacion-info {
    flex: 1;
}

.asignacion-info h4 {
    margin-bottom: 0.25rem;
    color: var(--dark);
}

.asignacion-info p {
    font-size: 0.9rem;
    color: var(--secondary);
    margin: 0.25rem 0;
}

.asignacion-nota {
    margin-top: 0.5rem;
    padding-top: 0.5rem;
    border-top: 1px solid var(--border);
}

.nota-text {
    background: #f8f9fa;
    padding: 0.5rem;
    border-radius: 4px;
    margin-bottom: 0.25rem;
    font-size: 0.9rem;
    color: var(--dark);
}

.btn-link {
    font-size: 0.85rem;
    color: var(--primary);
    text-decoration: none;
    border: none;
    background: none;
    cursor: pointer;
    padding: 0;
}

.btn-link:hover {
    text-decoration: underline;
}

.form-group textarea {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--border);
    border-radius: 6px;
    font-size: 1rem;
    font-family: inherit;
    resize: vertical;
}

.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(0,102,204,0.1);
}

.asignacion-actions {
    display: flex;
    gap: 0.5rem;
    align-items: center;
    flex-shrink: 0;
}

.checkbox-large {
    width: 20px;
    height: 20px;
    cursor: pointer;
}

/* Progreso por responsable */
.progreso-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
}

.progreso-card {
    background: white;
    padding: 1.5rem;
    border-radius: 10px;
    box-shadow: var(--shadow);
    transition: transform 0.3s, box-shadow 0.3s;
}

.progreso-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.progreso-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
    padding-bottom: 0.75rem;
    border-bottom: 2px solid var(--light);
}

.progreso-header h3 {
    margin: 0;
    color: var(--dark);
    font-size: 1.25rem;
}

.progreso-badge {
    display: inline-block;
    padding: 0.4rem 0.8rem;
    border-radius: 20px;
    color: white;
    font-weight: 600;
    font-size: 0.9rem;
}

.progreso-stats {
    display: flex;
    gap: 1.5rem;
    margin-bottom: 1rem;
    flex-wrap: wrap;
}

.progreso-stat {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.stat-label {
    font-size: 0.85rem;
    color: var(--secondary);
}

.stat-value {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--dark);
}

.progreso-bar-container {
    width: 100%;
    height: 10px;
    background: var(--light);
    border-radius: 5px;
    overflow: hidden;
    margin-bottom: 1rem;
}

.progreso-bar {
    height: 100%;
    transition: width 0.5s ease;
    border-radius: 5px;
}

.progreso-dias {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    font-size: 0.9rem;
}

.progreso-dia {
    padding: 0.5rem;
    background: var(--light);
    border-radius: 6px;
    display: flex;
    justify-content: space-between;
}

/* Notas */
.notas-summary {
    margin-bottom: 2rem;
}

.summary-card {
    background: white;
    padding: 1.5rem;
    border-radius: 10px;
    box-shadow: var(--shadow);
    border-left: 4px solid var(--primary);
}

.summary-card h3 {
    margin-top: 0;
    color: var(--primary);
}

.summary-card p {
    margin: 0.5rem 0;
    color: var(--dark);
}

.nota-item {
    background: #fff9e6;
    border-left: 4px solid var(--warning);
}

.nota-display {
    margin-top: 0.75rem;
    padding-top: 0.75rem;
    border-top: 1px solid var(--border);
}

.nota-text-large {
    background: white;
    padding: 1rem;
    border-radius: 6px;
    margin: 0;
    font-size: 1rem;
    line-height: 1.6;
    color: var(--dark);
    white-space: pre-wrap;
}

.tag-warning {
    background: #fff3cd;
    color: #856404;
}

.update-indicator {
    animation: pulse 1.5s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

.loading {
    text-align: center;
    padding: 2rem;
    color: var(--secondary);
}

.empty-state {
    text-align: center;
    padding: 3rem;
    color: var(--secondary);
}

.empty-state h3 {
    margin-bottom: 0.5rem;
    color: var(--dark);
}

@media (max-width: 768px) {
    .container {
        padding: 0 1rem;
    }
    
    .nav-container {
        padding: 0 1rem;
        flex-direction: column;
        align-items: flex-start;
    }
    
    .nav-links {
        flex-direction: column;
        width: 100%;
    }
    
    .nav-btn {
        width: 100%;
        text-align: left;
    }
    
    .page-header {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .header-actions {
        flex-direction: column;
        width: 100%;
    }
    
    .header-actions input,
    .header-actions button {
        width: 100%;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .data-table {
        font-size: 0.9rem;
    }
    
    .data-table th,
    .data-table td {
        padding: 0.5rem;
    }
    
    .asignacion-item {
        flex-direction: column;
        align-items: stretch;
    }
    
    .asignacion-actions {
        width: 100%;
        justify-content: stretch;
    }
    
    .asignacion-actions .btn {
        width: 100%;
    }
    
    .progreso-grid {
        grid-template-columns: 1fr;
    }
    
    .progreso-stats {
        justify-content: space-between;
    }
}