:root {
    --primary-color: #1a237e;
    --secondary-color: #3949ab;
    --accent-color: #5c6bc0;
    --success-color: #4caf50;
    --warning-color: #ff9800;
    --danger-color: #f44336;
    --bg-color: #0f1419;
    --bg-secondary: #1a1f2e;
    --bg-tertiary: #252b3b;
    --text-primary: #ffffff;
    --text-secondary: #b0b8c4;
    --border-color: #2d3447;
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.5);
}

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: var(--bg-color);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 20px;
    width: 100%;
}

/* Header */
.header {
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: var(--shadow);
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.5rem;
    color: var(--accent-color);
}

.logo i {
    font-size: 2rem;
}

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

.nav {
    display: flex;
    gap: 1.5rem;
}

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    padding: 0.5rem 1rem;
    border-radius: 6px;
    transition: all 0.3s ease;
}

.nav-link:hover,
.nav-link.active {
    color: var(--text-primary);
    background: var(--bg-tertiary);
}

/* Main Content */
.main {
    flex: 1;
    padding: 2rem 0;
}

/* Search Section */
.search-section {
    margin-bottom: 2rem;
}

.search-box {
    display: flex;
    align-items: center;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 0.75rem 1rem;
    gap: 1rem;
    box-shadow: var(--shadow);
}

.search-box i {
    color: var(--text-secondary);
    font-size: 1.2rem;
}

.search-box input {
    flex: 1;
    background: transparent;
    border: none;
    color: var(--text-primary);
    font-size: 1rem;
    outline: none;
}

.search-box input::placeholder {
    color: var(--text-secondary);
}

.btn-primary {
    background: var(--primary-color);
    color: var(--text-primary);
    border: none;
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-primary:hover {
    background: var(--secondary-color);
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}

/* Stats Section */
.stats-section {
    margin-bottom: 2rem;
}

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

.stat-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1.5rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    box-shadow: var(--shadow);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.stat-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.stat-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: var(--text-primary);
}

.stat-content h3 {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
    font-weight: 500;
}

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

/* Trading Section */
.trading-section {
    margin-bottom: 2rem;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 2rem;
    box-shadow: var(--shadow);
}

.trading-section .section-header {
    margin-bottom: 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.trading-source {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.exchange-select {
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    padding: 0.5rem 1rem;
    color: var(--text-primary);
    font-size: 0.9rem;
    cursor: pointer;
    outline: none;
    transition: all 0.3s ease;
}

.exchange-select:hover {
    border-color: var(--accent-color);
}

.exchange-select:focus {
    border-color: var(--accent-color);
    box-shadow: 0 0 0 2px rgba(92, 107, 192, 0.2);
}

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

.trading-card {
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 1.5rem;
    text-align: center;
}

.trading-card.price-card {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-color: var(--accent-color);
}

.trading-label {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: 0.75rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.price-card .trading-label {
    color: rgba(255, 255, 255, 0.8);
}

.trading-value {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.price-card .trading-value {
    font-size: 2.25rem;
    color: var(--text-primary);
}

.trading-change {
    font-size: 1rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.trading-change.positive {
    color: var(--success-color);
}

.trading-change.negative {
    color: var(--danger-color);
}

.trading-links {
    display: flex;
    justify-content: center;
    gap: 1rem;
    padding-top: 1rem;
    border-top: 1px solid var(--border-color);
}

.trading-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--accent-color);
    text-decoration: none;
    font-weight: 500;
    padding: 0.75rem 1.5rem;
    border: 1px solid var(--accent-color);
    border-radius: 8px;
    transition: all 0.3s ease;
}

.trading-link:hover {
    background: var(--accent-color);
    color: var(--text-primary);
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}

/* Advertisement Section */
.ad-section {
    margin-bottom: 2rem;
}

.ad-container {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1rem;
    box-shadow: var(--shadow);
    text-align: center;
    position: relative;
}

.ad-label {
    position: absolute;
    top: 0.5rem;
    right: 0.5rem;
    font-size: 0.7rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    font-weight: 600;
}

.ad-slot {
    min-height: 90px;
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-tertiary);
    border-radius: 8px;
    padding: 1rem;
    margin-top: 1.5rem;
}

.ad-link {
    display: block;
    width: 100%;
    text-align: center;
    transition: opacity 0.3s ease;
}

.ad-link:hover {
    opacity: 0.9;
}

.ad-image {
    max-width: 100%;
    height: auto;
    max-height: 90px;
    width: auto;
    border-radius: 4px;
}

.ad-placeholder {
    color: var(--text-secondary);
    text-align: center;
}

.ad-placeholder i {
    font-size: 2rem;
    margin-bottom: 0.5rem;
    color: var(--accent-color);
    opacity: 0.5;
}

.ad-placeholder p {
    margin: 0.25rem 0;
    font-size: 0.9rem;
}

.ad-placeholder-text {
    font-size: 0.75rem !important;
    opacity: 0.7;
}

/* Content Section */
.content-section {
    margin-bottom: 3rem;
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
}

.section-header h2 {
    font-size: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: var(--text-primary);
}

.section-header i {
    color: var(--accent-color);
}

.view-all {
    color: var(--accent-color);
    text-decoration: none;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: all 0.3s ease;
}

.view-all:hover {
    color: var(--text-primary);
    gap: 0.75rem;
}

/* Table */
.table-container {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow);
}

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

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

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

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

.data-table tbody tr {
    transition: background 0.2s ease;
}

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

.data-table tbody tr:last-child td {
    border-bottom: none;
}

.hash-link {
    color: var(--accent-color);
    text-decoration: none;
    font-family: 'Courier New', monospace;
    font-size: 0.9rem;
}

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

.address-link {
    color: var(--accent-color);
    text-decoration: none;
    font-family: 'Courier New', monospace;
    font-size: 0.9rem;
    display: inline-block;
    max-width: 200px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

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

.amount {
    color: var(--success-color);
    font-weight: 600;
}

.time-ago {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* Footer */
.footer {
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    padding: 2rem 0;
    margin-top: auto;
    text-align: center;
    color: var(--text-secondary);
}

/* Detail Pages */
.detail-page {
    max-width: 1000px;
    margin: 0 auto;
}

.detail-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 2rem;
    margin-bottom: 2rem;
    box-shadow: var(--shadow);
}

.detail-card h2 {
    margin-bottom: 1.5rem;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.detail-card h2 i {
    color: var(--accent-color);
}

.detail-row {
    display: flex;
    justify-content: space-between;
    padding: 1rem 0;
    border-bottom: 1px solid var(--border-color);
}

.detail-row:last-child {
    border-bottom: none;
}

.detail-label {
    color: var(--text-secondary);
    font-weight: 500;
}

.detail-value {
    color: var(--text-primary);
    font-family: 'Courier New', monospace;
    text-align: right;
    word-break: break-all;
}

.detail-value.hash {
    color: var(--accent-color);
}

.detail-value.amount {
    color: var(--success-color);
    font-weight: 600;
}

/* Responsive */
@media (max-width: 768px) {
    .header-content {
        flex-direction: column;
        align-items: flex-start;
    }

    .nav {
        width: 100%;
        flex-wrap: wrap;
    }

    .stats-grid {
        grid-template-columns: 1fr;
    }

    .trading-grid {
        grid-template-columns: 1fr;
    }

    .trading-section .section-header {
        flex-direction: column;
        align-items: flex-start;
    }

    .trading-value {
        font-size: 1.5rem;
    }

    .price-card .trading-value {
        font-size: 1.75rem;
    }

    .ad-slot {
        min-height: 70px;
        padding: 0.75rem;
    }

    .ad-placeholder i {
        font-size: 1.5rem;
    }

    .ad-placeholder p {
        font-size: 0.8rem;
    }

    .data-table {
        font-size: 0.9rem;
    }

    .data-table th,
    .data-table td {
        padding: 0.75rem 0.5rem;
    }

    .detail-row {
        flex-direction: column;
        gap: 0.5rem;
    }

    .detail-value {
        text-align: left;
    }
}

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

.spinner {
    border: 3px solid var(--border-color);
    border-top: 3px solid var(--accent-color);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    animation: spin 1s linear infinite;
    margin: 0 auto;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Rich List Styles */
.richlist-info {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.richlist-stats {
    display: flex;
    gap: 2rem;
    margin-bottom: 2rem;
    padding: 1.5rem;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    flex-wrap: wrap;
}

.richlist-stat {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.richlist-stat .stat-label {
    font-size: 0.85rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.richlist-stat .stat-value {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
}

.rank-badge {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    border-radius: 6px;
    font-weight: 700;
    font-size: 0.9rem;
    background: var(--bg-tertiary);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.rank-badge.rank-gold {
    background: linear-gradient(135deg, #ffd700, #ffed4e);
    color: #000;
    border-color: #ffd700;
}

.rank-badge.rank-silver {
    background: linear-gradient(135deg, #c0c0c0, #e8e8e8);
    color: #000;
    border-color: #c0c0c0;
}

.rank-badge.rank-bronze {
    background: linear-gradient(135deg, #cd7f32, #e6a857);
    color: #fff;
    border-color: #cd7f32;
}

.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 1.5rem;
    margin-top: 2rem;
    padding: 1.5rem;
}

.pagination-btn {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    cursor: pointer;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: all 0.3s ease;
}

.pagination-btn:hover:not(:disabled) {
    background: var(--bg-tertiary);
    border-color: var(--accent-color);
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}

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

.pagination-info {
    color: var(--text-secondary);
    font-weight: 500;
}

.pagination-info span {
    color: var(--text-primary);
    font-weight: 700;
}

@media (max-width: 768px) {
    .richlist-stats {
        flex-direction: column;
        gap: 1rem;
    }

    .pagination {
        flex-direction: column;
        gap: 1rem;
    }

    .pagination-btn {
        width: 100%;
        justify-content: center;
    }
}