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

:root {
    --primary-color: #A0D0AD;
    --primary-dark: #7BAF88;
    --secondary-color: #6c757d;
    --success-color: #28a745;
    --warning-color: #ffc107;
    --danger-color: #dc3545;
    --info-color: #17a2b8;
    --light-color: #f8f9fa;
    --dark-color: #343a40;
    --white: #ffffff;
    --gray-100: #f8f9fa;
    --gray-200: #e9ecef;
    --gray-300: #dee2e6;
    --gray-400: #ced4da;
    --gray-500: #adb5bd;
    --gray-600: #6c757d;
    --gray-700: #495057;
    --gray-800: #343a40;
    --gray-900: #212529;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--gray-100);
    color: var(--gray-800);
    line-height: 1.6;
}

/* Login Page */
.login-page {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

.login-container {
    width: 100%;
    max-width: 400px;
    padding: 20px;
}

.login-card {
    background: var(--white);
    border-radius: 16px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
    padding: 40px;
    text-align: center;
}

.logo img {
    max-width: 80px;
    margin-bottom: 20px;
}

.logo h1 {
    color: var(--primary-dark);
    font-size: 28px;
    margin-bottom: 5px;
}

.logo p {
    color: var(--gray-600);
    font-size: 14px;
}

/* Forms */
.form-group {
    margin-bottom: 20px;
    text-align: left;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--gray-700);
}

.form-control {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid var(--gray-300);
    border-radius: 8px;
    font-size: 16px;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.form-control:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(160, 208, 173, 0.1);
}

textarea.form-control {
    resize: vertical;
    min-height: 80px;
}

/* Buttons */
button, .btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 20px;
    font-size: 16px;
    font-weight: 500;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.2s;
    text-decoration: none;
}

.btn-primary {
    background-color: var(--primary-color);
    color: var(--gray-800);
}

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

.btn-secondary {
    background-color: var(--gray-500);
    color: white;
}

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

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

.btn-small {
    padding: 5px 12px;
    font-size: 12px;
}

.btn-icon {
    background: none;
    padding: 5px;
    color: var(--gray-600);
    font-size: 18px;
}

.btn-icon:hover {
    color: var(--primary-color);
}

/* Dashboard */
.app-container {
    display: flex;
    min-height: 100vh;
}

.sidebar {
    width: 260px;
    background: var(--gray-800);
    color: white;
    position: fixed;
    height: 100vh;
    overflow-y: auto;
    transition: transform 0.3s;
}

.sidebar-header {
    padding: 20px;
    text-align: center;
    border-bottom: 1px solid var(--gray-700);
}

.sidebar-logo {
    max-width: 60px;
    margin-bottom: 10px;
}

.sidebar-header h2 {
    font-size: 20px;
    margin-bottom: 5px;
}

.sidebar-header p {
    font-size: 12px;
    opacity: 0.7;
}

.sidebar-menu {
    list-style: none;
    padding: 20px 0;
}

.sidebar-menu li {
    margin-bottom: 5px;
}

.sidebar-menu li.menu-section {
    padding: 15px 20px 5px;
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 1px;
    opacity: 0.5;
}

.sidebar-menu li a {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 20px;
    color: var(--gray-300);
    text-decoration: none;
    transition: all 0.2s;
}

.sidebar-menu li a:hover {
    background: var(--gray-700);
    color: white;
}

.sidebar-menu li.active a {
    background: var(--primary-color);
    color: var(--gray-800);
}

.sidebar-menu li a i {
    width: 20px;
    font-size: 18px;
}

.badge {
    margin-left: auto;
    background: var(--danger-color);
    color: white;
    padding: 2px 6px;
    border-radius: 10px;
    font-size: 10px;
}

.main-content {
    flex: 1;
    margin-left: 260px;
    padding: 20px;
}

.top-bar {
    background: white;
    padding: 15px 20px;
    border-radius: 12px;
    margin-bottom: 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.user-info {
    display: flex;
    align-items: center;
    gap: 15px;
}

.user-name {
    font-weight: 500;
}

.logout-btn {
    color: var(--danger-color);
    text-decoration: none;
}

/* Cards */
.card {
    background: white;
    border-radius: 12px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    margin-bottom: 20px;
    overflow: hidden;
}

.card-header {
    padding: 20px 20px 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
}

.card-header h2 {
    font-size: 18px;
    color: var(--gray-700);
}

.card-body {
    padding: 20px;
}

/* Stats Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.stat-card {
    background: white;
    border-radius: 12px;
    padding: 20px;
    text-align: center;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    transition: transform 0.2s;
}

.stat-card:hover {
    transform: translateY(-2px);
}

.stat-icon {
    font-size: 32px;
    margin-bottom: 10px;
}

.stat-value {
    font-size: 32px;
    font-weight: bold;
    color: var(--gray-800);
}

.stat-label {
    font-size: 14px;
    color: var(--gray-600);
    margin-top: 5px;
}

.stat-percent {
    font-size: 12px;
    margin-top: 5px;
}

.stat-card.green .stat-value { color: var(--success-color); }
.stat-card.yellow .stat-value { color: var(--warning-color); }
.stat-card.red .stat-value { color: var(--danger-color); }
.stat-card.alert .stat-value { color: var(--info-color); }

/* Dashboard Grid */
.dashboard-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 20px;
}

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

/* Tables */
.data-table-container {
    overflow-x: auto;
}

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

.data-table th,
.data-table td {
    padding: 12px;
    text-align: left;
    border-bottom: 1px solid var(--gray-200);
}

.data-table th {
    background: var(--gray-100);
    font-weight: 600;
    color: var(--gray-700);
}

.data-table tbody tr:hover {
    background: var(--gray-100);
}

/* Estado Badges */
.estado-badge {
    display: inline-block;
    padding: 4px 10px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 500;
}

.estado-verde {
    background: #d4edda;
    color: #155724;
}

.estado-amarillo {
    background: #fff3cd;
    color: #856404;
}

.estado-rojo {
    background: #f8d7da;
    color: #721c24;
}

/* Progress Bar */
.progress-bar {
    display: flex;
    align-items: center;
    gap: 10px;
}

.progress-bar .progress {
    flex: 1;
    height: 8px;
    background: var(--gray-200);
    border-radius: 4px;
    overflow: hidden;
}

.progress-bar .progress div {
    height: 100%;
    background: var(--primary-color);
    border-radius: 4px;
    transition: width 0.3s;
}

/* Alerts */
.alert {
    padding: 12px 16px;
    border-radius: 8px;
    margin-bottom: 20px;
}

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

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

.alert-info {
    background: #d1ecf1;
    color: #0c5460;
    border: 1px solid #bee5eb;
}

/* Pagination */
.pagination {
    display: flex;
    justify-content: center;
    gap: 5px;
    margin-top: 20px;
}

.pagination a {
    padding: 8px 12px;
    border: 1px solid var(--gray-300);
    border-radius: 6px;
    text-decoration: none;
    color: var(--gray-700);
}

.pagination a.active {
    background: var(--primary-color);
    border-color: var(--primary-color);
    color: white;
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: 40px;
    color: var(--gray-500);
}

.empty-icon {
    font-size: 48px;
    display: block;
    margin-bottom: 15px;
}

/* Responsive */
@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
        z-index: 1000;
    }
    
    .sidebar.mobile-open {
        transform: translateX(0);
    }
    
    .main-content {
        margin-left: 0;
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .dashboard-grid {
        grid-template-columns: 1fr;
    }
    
    .data-table th,
    .data-table td {
        padding: 8px;
        font-size: 14px;
    }
}