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

:root {
    --primary-color: #5c9ccc;
    --secondary-color: #4a7ba7;
    --accent-color: #6eb5ff;
    --text-color: #333;
    --bg-color: #f5f5f5;
    --white: #ffffff;
    --gray-light: #e0e0e0;
    --gray-medium: #999;
    --success: #28a745;
    --warning: #ffc107;
    --danger: #dc3545;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--bg-color);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.navbar {
    background-color: var(--primary-color);
    padding: 1rem 0;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: relative;
}

.nav-brand h1 {
    color: var(--white);
    font-size: 1.5rem;
    font-weight: 600;
}

.nav-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
    flex-direction: column;
    gap: 4px;
}

.nav-toggle span {
    display: block;
    width: 25px;
    height: 3px;
    background-color: var(--white);
    transition: all 0.3s;
}

.nav-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.nav-toggle.active span:nth-child(2) {
    opacity: 0;
}

.nav-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -6px);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-link {
    color: var(--white);
    text-decoration: none;
    padding: 0.5rem 1rem;
    border-radius: 4px;
    transition: background-color 0.3s;
}

.nav-link:hover,
.nav-link.active {
    background-color: var(--secondary-color);
}

.hero {
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    color: var(--white);
    padding: 2rem 0;
    text-align: center;
}

.hero h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    font-weight: 600;
    letter-spacing: -0.02em;
}

.hero-logo {
    max-width: 300px;
    width: 90%;
    height: auto;
    margin-bottom: 0.75rem;
}

.hero p {
    font-size: 1.15rem;
    font-weight: 400;
    letter-spacing: 0.3px;
    opacity: 0.98;
    margin-bottom: 0;
    padding-bottom: 1rem;
    line-height: 1.6;
}

.content {
    padding: 2.1rem 0;
    background-color: var(--white);
}

.tabs {
    margin-top: 0;
}

.tab-buttons {
    display: flex;
    gap: 1rem;
    margin-bottom: 2rem;
    border-bottom: 2px solid var(--gray-light);
}

.tab-button {
    padding: 0.75rem 1.5rem;
    background: none;
    border: none;
    color: var(--gray-medium);
    font-size: 1rem;
    cursor: pointer;
    position: relative;
    transition: color 0.3s;
}

.tab-button.active {
    color: var(--primary-color);
}

.tab-button.active::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    right: 0;
    height: 2px;
    background-color: var(--primary-color);
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
}

.filters {
    display: flex;
    gap: 1rem;
    margin-bottom: 2rem;
    padding: 1rem;
    background-color: var(--bg-color);
    border-radius: 8px;
    flex-wrap: wrap;
    align-items: flex-end;
}

.filter-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.filter-group label {
    font-weight: 500;
    color: var(--text-color);
}

.filter-group input,
.filter-group select {
    padding: 0.5rem;
    border: 1px solid var(--gray-light);
    border-radius: 4px;
    font-size: 0.95rem;
    min-width: 200px;
}

.btn-secondary {
    padding: 0.5rem 1rem;
    background-color: var(--gray-medium);
    color: var(--white);
    border: none;
    border-radius: 4px;
    cursor: pointer;
    transition: background-color 0.3s;
}

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

.table-container {
    margin-bottom: 2rem;
}

.table-wrapper {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

table {
    width: 100%;
    border-collapse: collapse;
    background-color: var(--white);
}

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

th {
    padding: 1rem;
    text-align: left;
    font-weight: 500;
    cursor: pointer;
    user-select: none;
    white-space: nowrap;
}

th i {
    margin-left: 0.5rem;
    font-size: 0.85rem;
    opacity: 0.7;
}

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

tbody tr {
    border-bottom: 1px solid var(--gray-light);
}

tbody tr:hover {
    background-color: var(--bg-color);
}

td {
    padding: 0.75rem 1rem;
}

.btn-detail {
    padding: 0.25rem 0.75rem;
    background-color: var(--accent-color);
    color: var(--white);
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 0.85rem;
    transition: background-color 0.3s;
}

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

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

.no-results {
    text-align: center;
    padding: 2rem;
    color: var(--gray-medium);
    font-style: italic;
}

.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 1rem;
}

.btn-pagination {
    padding: 0.5rem 1rem;
    background-color: var(--primary-color);
    color: var(--white);
    border: none;
    border-radius: 4px;
    cursor: pointer;
    transition: background-color 0.3s;
}

.btn-pagination:hover:not(:disabled) {
    background-color: var(--secondary-color);
}

.btn-pagination:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

#page-info {
    color: var(--text-color);
}

.stats-container {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 1.5rem;
    margin-bottom: 3rem;
}

.stat-card {
    background-color: var(--white);
    padding: 1.5rem;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    text-align: center;
    min-width: 200px;
    flex: 0 1 250px;
}

.stat-card h3 {
    color: var(--gray-medium);
    font-size: 0.9rem;
    margin-bottom: 0.5rem;
    text-transform: uppercase;
}

.stat-number {
    font-size: 2rem;
    font-weight: bold;
    color: var(--primary-color);
}

.chart-container {
    background-color: var(--white);
    padding: 2rem;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.info-section {
    padding: 3rem 0;
    background-color: var(--bg-color);
    border-top: 1px solid rgba(92, 156, 204, 0.1);
}

.info-section h2 {
    color: var(--primary-color);
    margin-bottom: 1.5rem;
    font-size: 2rem;
}

.info-section p {
    margin-bottom: 1rem;
    line-height: 1.8;
}

.info-section ul {
    margin-left: 2rem;
    margin-top: 1rem;
}

.info-section li {
    margin-bottom: 0.5rem;
}

footer {
    background-color: var(--text-color);
    color: var(--white);
    padding: 2rem 0;
    text-align: center;
}

@media (max-width: 768px) {
    .nav-toggle {
        display: flex;
    }
    
    .nav-menu {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background-color: var(--primary-color);
        flex-direction: column;
        padding: 1rem;
        box-shadow: 0 4px 6px rgba(0,0,0,0.1);
        gap: 0;
    }
    
    .nav-menu.active {
        display: flex;
    }
    
    .nav-link {
        padding: 0.75rem;
        border-bottom: 1px solid rgba(255,255,255,0.1);
    }
    
    .hero h2 {
        font-size: 1.5rem;
    }
    
    .hero p {
        font-size: 1rem;
        padding: 0 1rem;
    }
    
    .tab-buttons {
        flex-direction: column;
        gap: 0;
    }
    
    .tab-button {
        width: 100%;
        text-align: left;
        border-bottom: 1px solid var(--gray-light);
    }
    
    .filters {
        flex-direction: column;
        padding: 0.75rem;
    }
    
    .filter-group {
        width: 100%;
    }
    
    .filter-group input,
    .filter-group select {
        width: 100%;
        min-width: unset;
    }
    
    .btn-secondary {
        width: 100%;
        margin-top: 0.5rem;
    }
    
    .stats-container {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .stat-card {
        padding: 1rem;
    }
    
    .stat-number {
        font-size: 1.5rem;
    }
    
    table {
        font-size: 0.75rem;
        min-width: 600px;
    }
    
    th, td {
        padding: 0.5rem 0.25rem;
    }
    
    .btn-detail {
        padding: 0.25rem 0.5rem;
        font-size: 0.75rem;
    }
    
    .pagination {
        flex-wrap: wrap;
        gap: 0.5rem;
    }
    
    .btn-pagination {
        padding: 0.4rem 0.8rem;
        font-size: 0.85rem;
    }
    
    #page-info {
        width: 100%;
        text-align: center;
        order: -1;
        margin-bottom: 0.5rem;
    }
    
    .info-section {
        padding: 2rem 0;
    }
    
    .info-section h2 {
        font-size: 1.5rem;
    }
    
    footer {
        padding: 1.5rem 0;
        font-size: 0.85rem;
    }
}

@media (max-width: 480px) {
    .nav-brand h1 {
        font-size: 1.2rem;
    }
    
    .hero {
        padding: 2.5rem 0;
    }
    
    .hero h2 {
        font-size: 1.25rem;
    }
    
    .hero p {
        font-size: 0.9rem;
    }
    
    .hero-logo {
        max-width: 200px;
        width: 85%;
    }
    
    .content {
        padding: 2rem 0;
    }
    
    .stat-card h3 {
        font-size: 0.8rem;
    }
    
    table {
        font-size: 0.7rem;
    }
    
    th, td {
        padding: 0.4rem 0.2rem;
    }
}

@media (min-width: 1024px) {
    .container {
        max-width: 1200px;
    }
    
    .hero h2 {
        font-size: 3rem;
    }
    
    .stats-container {
        grid-template-columns: repeat(4, 1fr);
    }
}

@media (hover: none) and (pointer: coarse) {
    .nav-link:active {
        background-color: var(--secondary-color);
    }
    
    .btn-secondary:active {
        background-color: var(--text-color);
    }
    
    .btn-detail:active {
        background-color: var(--primary-color);
    }
    
    .btn-pagination:active:not(:disabled) {
        background-color: var(--secondary-color);
    }
}