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

:root {
    --bg-primary: #0a0e27;
    --bg-secondary: #141b2d;
    --bg-card: #1a2332;
    --bg-hover: #252f43;
    --accent-primary: #6366f1;
    --accent-secondary: #8b5cf6;
    --text-primary: #e2e8f0;
    --text-secondary: #94a3b8;
    --success: #10b981;
    --warning: #f59e0b;
    --danger: #ef4444;
    --border: #2d3748;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: linear-gradient(135deg, var(--bg-primary) 0%, #1a1f3a 100%);
    color: var(--text-primary);
    min-height: 100vh;
    padding: 20px;
}

.container {
    max-width: 1600px;
    margin: 0 auto;
}

header {
    margin-bottom: 30px;
}

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

header h1 {
    font-size: 2rem;
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.view-toggle {
    display: flex;
    gap: 10px;
}

.toggle-btn {
    padding: 8px 16px;
    background: var(--bg-card);
    color: var(--text-secondary);
    text-decoration: none;
    border-radius: 6px;
    border: 1px solid var(--border);
    transition: all 0.3s;
    font-size: 0.9rem;
}

.toggle-btn:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
}

.toggle-btn.active {
    background: var(--accent-primary);
    color: white;
    border-color: var(--accent-primary);
}

.controls {
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
    align-items: center;
    background: var(--bg-card);
    padding: 20px;
    border-radius: 10px;
    margin-bottom: 20px;
    border: 1px solid var(--border);
}

.control-group {
    display: flex;
    flex-direction: column;
    gap: 5px;
}

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

.control-group input,
.control-group select {
    padding: 8px 12px;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 6px;
    color: var(--text-primary);
    font-size: 0.9rem;
}

.auto-refresh-label {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.btn-primary,
.btn-secondary {
    padding: 10px 20px;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-weight: 600;
    transition: all 0.3s;
    font-size: 0.9rem;
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
    color: white;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(99, 102, 241, 0.4);
}

.btn-secondary {
    background: var(--bg-secondary);
    color: var(--text-primary);
    border: 1px solid var(--border);
}

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

.stats-bar {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
    background: var(--bg-card);
    padding: 15px 20px;
    border-radius: 10px;
    margin-bottom: 20px;
    border: 1px solid var(--border);
}

.stat {
    display: flex;
    flex-direction: column;
    gap: 5px;
}

.stat-label {
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.stat-value {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--accent-primary);
}

.filters {
    display: flex;
    gap: 15px;
    margin-bottom: 20px;
}

.search-input {
    flex: 1;
    padding: 10px 15px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 6px;
    color: var(--text-primary);
    font-size: 0.9rem;
}

.data-warning {
    display: flex;
    align-items: center;
    gap: 10px;
    background: rgba(245, 158, 11, 0.1);
    border: 1px solid var(--warning);
    border-radius: 8px;
    padding: 12px 20px;
    margin-bottom: 20px;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.warning-icon {
    font-size: 1.3rem;
}

.loading {
    text-align: center;
    padding: 40px;
}

.spinner {
    border: 3px solid var(--border);
    border-top: 3px solid var(--accent-primary);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    animation: spin 1s linear infinite;
    margin: 0 auto 15px;
}

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

.error {
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid var(--danger);
    color: var(--danger);
    padding: 15px;
    border-radius: 8px;
    margin-bottom: 20px;
}

.table-container {
    background: var(--bg-card);
    border-radius: 10px;
    overflow-x: auto;
    border: 1px solid var(--border);
}

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

.coins-table thead {
    background: var(--bg-secondary);
    position: sticky;
    top: 0;
    z-index: 10;
}

.coins-table th {
    padding: 15px;
    text-align: left;
    font-weight: 600;
    color: var(--text-secondary);
    border-bottom: 2px solid var(--border);
    white-space: nowrap;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.coins-table th.sortable {
    cursor: pointer;
    user-select: none;
}

.coins-table th.sortable:hover {
    color: var(--accent-primary);
}

.sort-indicator {
    font-size: 0.7rem;
    margin-left: 5px;
    color: var(--accent-primary);
}

.coins-table tbody tr {
    border-bottom: 1px solid var(--border);
    transition: background 0.2s;
}

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

.coins-table td {
    padding: 15px;
    font-size: 0.9rem;
}

.coin-name {
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 600;
    color: var(--text-primary);
}

.coin-badge {
    background: var(--accent-primary);
    color: white;
    padding: 2px 6px;
    border-radius: 4px;
    font-size: 0.7rem;
    font-weight: 700;
}

.price {
    font-weight: 600;
    color: var(--text-primary);
    font-family: 'Courier New', monospace;
}

.change {
    font-weight: 700;
    padding: 6px 12px;
    border-radius: 6px;
    display: inline-block;
}

.change.positive {
    color: var(--success);
    background: rgba(16, 185, 129, 0.1);
}

.change.negative {
    color: var(--danger);
    background: rgba(239, 68, 68, 0.1);
}

.volume {
    color: var(--text-secondary);
}

.rsi-value {
    display: flex;
    align-items: center;
    gap: 8px;
}

.rsi-number {
    font-weight: 700;
    min-width: 45px;
}

.rsi-number.high {
    color: var(--danger);
}

.rsi-number.medium {
    color: var(--warning);
}

.rsi-number.low {
    color: var(--success);
}

.rsi-number.error {
    color: var(--danger);
}

.rsi-bar {
    width: 60px;
    height: 6px;
    background: var(--bg-secondary);
    border-radius: 3px;
    overflow: hidden;
}

.rsi-bar-fill {
    height: 100%;
    border-radius: 3px;
    transition: width 0.3s;
}

.rsi-bar-fill.error {
    width: 100%;
    background: rgba(239, 68, 68, 0.2);
}

.status-badges {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.status-badge {
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: 600;
    text-align: center;
    white-space: nowrap;
}

.status-badge.over {
    background: rgba(239, 68, 68, 0.2);
    color: var(--danger);
}

.status-badge.ok {
    background: rgba(16, 185, 129, 0.2);
    color: var(--success);
}

.status-badge.error {
    background: rgba(239, 68, 68, 0.15);
    color: var(--danger);
}

.coin-links {
    display: flex;
    gap: 8px;
    justify-content: center;
}

.link-btn {
    padding: 6px 10px;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 6px;
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.75rem;
    transition: all 0.2s;
    white-space: nowrap;
}

.link-btn:hover {
    background: var(--accent-primary);
    color: white;
    border-color: var(--accent-primary);
    transform: translateY(-2px);
}

.text-center {
    text-align: center;
}

.empty-state {
    text-align: center;
    padding: 60px 20px;
    color: var(--text-secondary);
}

.empty-state p {
    font-size: 1.2rem;
    margin-bottom: 10px;
}

.empty-hint {
    font-size: 0.9rem !important;
}

@media (max-width: 768px) {
    .header-content {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .controls {
        flex-direction: column;
        align-items: stretch;
    }
    
    .control-group {
        width: 100%;
    }
    
    .coins-table {
        font-size: 0.8rem;
    }
    
    .coins-table th,
    .coins-table td {
        padding: 10px 8px;
    }
    
    .rsi-bar {
        display: none;
    }
}