:root {
    --primary-color: #d4af37; /* Gold */
    --primary-dark: #aa8c2c;
    --bg-color: #fcfcfc;
    --surface-color: #ffffff;
    --text-main: #1a1a1a;
    --text-muted: #666666;
    --border-color: #eaeaea;
    
    --success-color: #10b981;
    --success-bg: rgba(16, 185, 129, 0.1);
    
    --danger-color: #ef4444;
    --danger-bg: rgba(239, 68, 68, 0.1);
    
    --neutral-color: #6b7280;
    --neutral-bg: rgba(107, 114, 128, 0.1);

    --font-family: 'Outfit', sans-serif;
}

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

body {
    font-family: var(--font-family);
    background-color: var(--bg-color);
    color: var(--text-main);
    line-height: 1.6;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    width: 100%;
}

/* Header */
.main-header {
    background-color: var(--surface-color);
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
}

.logo a {
    display: flex;
    align-items: center;
}

.logo img {
    height: 60px;
    width: auto;
    object-fit: contain;
}

.main-nav ul {
    display: flex;
    list-style: none;
    gap: 30px;
}

.main-nav a {
    text-decoration: none;
    color: var(--text-main);
    font-weight: 500;
    font-size: 15px;
    transition: color 0.3s ease;
}

.main-nav a:hover, .main-nav a.active {
    color: var(--primary-color);
}

/* Main Content */
.content-wrapper {
    flex: 1;
    padding: 40px 0;
}

.page-header {
    text-align: center;
    margin-bottom: 40px;
}

.page-header h2 {
    font-size: 32px;
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: 10px;
}

.page-header p {
    color: var(--text-muted);
}

#last-update {
    display: block;
    margin-top: 5px;
    font-size: 14px;
    font-weight: 500;
}

/* Controls */
.table-controls {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin-bottom: 30px;
}

.filter-btn {
    background-color: transparent;
    border: 2px solid var(--border-color);
    color: var(--text-muted);
    padding: 8px 24px;
    border-radius: 30px;
    font-family: var(--font-family);
    font-weight: 500;
    font-size: 14px;
    cursor: pointer;
    transition: all 0.3s ease;
}

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

.filter-btn.active {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
    color: #fff;
}

/* Table */
.table-responsive {
    background: var(--surface-color);
    border-radius: 12px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.03);
    overflow-x: auto;
    border: 1px solid var(--border-color);
}

.prices-table {
    width: 100%;
    border-collapse: collapse;
    min-width: 600px;
}

.prices-table th {
    background-color: #f8f9fa;
    color: var(--text-muted);
    font-weight: 600;
    font-size: 14px;
    text-transform: uppercase;
    letter-spacing: 1px;
    padding: 16px 20px;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.prices-table td {
    padding: 16px 20px;
    border-bottom: 1px solid var(--border-color);
    font-weight: 500;
    vertical-align: middle;
}

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

.prices-table tbody tr:hover {
    background-color: #fafbfc;
}

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

/* Data stylings */
.symbol-name {
    font-weight: 600;
    color: var(--text-main);
    display: flex;
    align-items: center;
    gap: 10px;
}

.symbol-type-badge {
    font-size: 11px;
    padding: 3px 8px;
    border-radius: 4px;
    background: var(--primary-color);
    color: white;
    font-weight: 400;
    text-transform: uppercase;
}

.type-gold { background: #d4af37; }
.type-currency { background: #475569; }

.price-val {
    font-family: monospace;
    font-size: 16px;
}

.change-val {
    display: inline-block;
    padding: 4px 10px;
    border-radius: 6px;
    font-size: 14px;
    font-weight: 600;
}

.change-up {
    color: var(--success-color);
    background-color: var(--success-bg);
}

.change-down {
    color: var(--danger-color);
    background-color: var(--danger-bg);
}

.change-neutral {
    color: var(--neutral-color);
    background-color: var(--neutral-bg);
}

/* Animations */
@keyframes highlight {
    0% { background-color: rgba(212, 175, 55, 0.2); }
    100% { background-color: transparent; }
}

.row-updated {
    animation: highlight 1.5s ease-out;
}

/* Footer */
.main-footer {
    background-color: var(--surface-color);
    border-top: 1px solid var(--border-color);
    padding: 24px 0;
    text-align: center;
    margin-top: auto;
}

.main-footer p {
    color: var(--text-muted);
    font-size: 14px;
}

/* Responsive */
@media (max-width: 768px) {
    .header-container {
        flex-direction: column;
        justify-content: center;
        gap: 15px;
        height: auto;
        padding: 20px;
    }
    
    .table-controls {
        flex-wrap: wrap;
    }
}