/* Market Tracker - Premium Dark Theme */
:root {
    --bg-primary: #0a0e17;
    --bg-secondary: #111827;
    --bg-card: rgba(17, 24, 39, 0.8);
    --bg-card-hover: rgba(31, 41, 55, 0.9);
    --text-primary: #f9fafb;
    --text-secondary: #9ca3af;
    --text-muted: #6b7280;
    --gold: #ffd700;
    --silver: #c0c0c0;
    --platinum: #e5e4e2;
    --btc: #f7931a;
    --usd: #22c55e;
    --eur: #3b82f6;
    --positive: #10b981;
    --negative: #ef4444;
    --accent-primary: #8b5cf6;
    --accent-secondary: #a78bfa;
    --border-color: rgba(255, 255, 255, 0.1);
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --transition-normal: 0.3s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    min-height: 100vh;
    line-height: 1.6;
}

.bg-animation {
    position: fixed;
    inset: 0;
    z-index: -1;
    overflow: hidden;
}

.bg-gradient {
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse 80% 80% at 50% -20%, rgba(120, 119, 198, 0.15), transparent),
        radial-gradient(ellipse 60% 60% at 80% 50%, rgba(255, 215, 0, 0.08), transparent),
        radial-gradient(ellipse 60% 60% at 20% 80%, rgba(59, 130, 246, 0.08), transparent);
    animation: gradientShift 20s ease infinite;
}

@keyframes gradientShift {

    0%,
    100% {
        opacity: 1;
    }

    50% {
        opacity: 0.7;
    }
}

.bg-particles {
    position: absolute;
    inset: 0;
    background-image: radial-gradient(circle at 20% 30%, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
    background-size: 100px 100px;
}

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

.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 30px;
    background: var(--bg-card);
    backdrop-filter: blur(20px);
    border-radius: var(--radius-xl);
    border: 1px solid var(--border-color);
    margin-bottom: 30px;
}

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

.logo-icon {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
}

.logo-icon svg {
    width: 28px;
    height: 28px;
    color: white;
}

.logo h1 {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--text-primary);
}

.header-info {
    display: flex;
    align-items: center;
    gap: 20px;
}

.live-indicator {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: rgba(16, 185, 129, 0.15);
    border: 1px solid rgba(16, 185, 129, 0.3);
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--positive);
}

.pulse {
    width: 8px;
    height: 8px;
    background: var(--positive);
    border-radius: 50%;
    animation: pulse 2s ease infinite;
}

@keyframes pulse {

    0%,
    100% {
        opacity: 1;
    }

    50% {
        opacity: 0.5;
        transform: scale(1.2);
    }
}

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

.refresh-btn {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    width: 38px;
    height: 38px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition-normal);
}

.refresh-btn:hover {
    border-color: var(--accent-primary);
    color: var(--text-primary);
    transform: rotate(30deg);
}

.refresh-btn.spinning svg {
    animation: spin 1s infinite linear;
}

@keyframes spin {
    from {
        transform: rotate(0deg);
    }

    to {
        transform: rotate(360deg);
    }
}

/* Filter Section */
.filter-section {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 1.5rem;
    margin-bottom: 2rem;
    backdrop-filter: blur(10px);
}

.filter-title {
    color: var(--text-secondary);
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.filter-container {
    display: flex;
    gap: 2rem;
    align-items: flex-start;
}

.filter-group {
    flex: 1;
}

.filter-group h3 {
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-bottom: 1rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.filter-divider {
    width: 1px;
    background: var(--border-color);
    align-self: stretch;
    min-height: 100px;
}

/* Range Mode Controls */
.filter-controls {
    display: flex;
    flex-wrap: wrap;
    gap: 1.5rem;
    align-items: center;
}

.date-inputs {
    display: flex;
    gap: 1rem;
}

/* Single Date Controls */
.single-date-controls {
    display: flex;
    gap: 1.5rem;
    align-items: flex-end;
}

.archive-actions {
    display: flex;
    gap: 0.5rem;
}

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

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

input[type="date"] {
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 0.6rem 1rem;
    border-radius: 8px;
    font-family: var(--font-primary);
    outline: none;
    transition: all 0.2s;
}

.input-group input[type="date"]:hover {
    border-color: var(--accent-primary);
}

.input-group input[type="date"]:focus {
    outline: none;
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px rgba(139, 92, 246, 0.2);
}

.input-group input[type="date"]::-webkit-calendar-picker-indicator {
    filter: invert(1);
    cursor: pointer;
}

.quick-filters {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 12px 20px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    font-family: inherit;
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition-normal);
}

.filter-btn:hover {
    background: var(--bg-card-hover);
    border-color: var(--accent-primary);
    color: var(--text-primary);
    transform: translateY(-2px);
}

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

.apply-btn {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 14px 28px;
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
    border: none;
    border-radius: var(--radius-md);
    color: white;
    font-family: inherit;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-normal);
    margin-left: auto;
}

.apply-btn:hover {
    transform: translateY(-2px);
}

.section-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 25px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.section-title::before {
    content: '';
    width: 4px;
    height: 24px;
    background: linear-gradient(180deg, var(--accent-primary), var(--accent-secondary));
    border-radius: 2px;
}

.assets-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
    margin-bottom: 40px;
}

.asset-card {
    background: var(--bg-card);
    backdrop-filter: blur(20px);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
    padding: 24px;
    cursor: pointer;
    transition: var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.asset-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    opacity: 0;
    transition: var(--transition-normal);
}

.asset-card[data-asset="gold"]::before {
    background: linear-gradient(90deg, var(--gold), #ffab00);
}

.asset-card[data-asset="silver"]::before {
    background: linear-gradient(90deg, var(--silver), #a8a8a8);
}

.asset-card[data-asset="platinum"]::before {
    background: linear-gradient(90deg, var(--platinum), #c9c9c9);
}

.asset-card[data-asset="btc"]::before {
    background: linear-gradient(90deg, var(--btc), #e5720e);
}

.asset-card[data-asset="usd"]::before {
    background: linear-gradient(90deg, var(--usd), #16a34a);
}

.asset-card[data-asset="eur"]::before {
    background: linear-gradient(90deg, var(--eur), #2563eb);
}

.asset-card:hover {
    transform: translateY(-5px);
    border-color: rgba(139, 92, 246, 0.5);
}

.asset-card:hover::before,
.asset-card.active::before {
    opacity: 1;
}

.asset-card.active {
    border-color: var(--accent-primary);
}

.asset-header {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 20px;
}

.asset-icon {
    width: 52px;
    height: 52px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
}

.asset-icon.gold {
    background: linear-gradient(135deg, rgba(255, 215, 0, 0.2), rgba(255, 215, 0, 0.1));
    color: var(--gold);
}

.asset-icon.silver {
    background: linear-gradient(135deg, rgba(192, 192, 192, 0.2), rgba(192, 192, 192, 0.1));
    color: var(--silver);
}

.asset-icon.platinum {
    background: linear-gradient(135deg, rgba(229, 228, 226, 0.2), rgba(229, 228, 226, 0.1));
    color: var(--platinum);
}

.asset-icon.btc {
    background: linear-gradient(135deg, rgba(247, 147, 26, 0.2), rgba(247, 147, 26, 0.1));
    color: var(--btc);
}

.asset-icon.usd {
    background: linear-gradient(135deg, rgba(34, 197, 94, 0.2), rgba(34, 197, 94, 0.1));
    color: var(--usd);
}

.asset-icon.eur {
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.2), rgba(59, 130, 246, 0.1));
    color: var(--eur);
}

.asset-info h3 {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 4px;
}

.asset-symbol {
    font-size: 0.85rem;
    color: var(--text-muted);
    font-weight: 500;
}

.asset-price {
    display: flex;
    align-items: baseline;
    gap: 8px;
    margin-bottom: 12px;
}

.asset-price .price {
    font-size: 1.8rem;
    font-weight: 700;
}

.asset-price .currency {
    font-size: 0.9rem;
    color: var(--text-muted);
}

.asset-change {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.95rem;
    font-weight: 600;
}

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

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

.chart-tabs {
    display: flex;
    gap: 8px;
    margin-bottom: 20px;
    flex-wrap: wrap;
    padding: 10px;
    background: var(--bg-card);
    backdrop-filter: blur(20px);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
}

.chart-tab {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 20px;
    background: transparent;
    border: 1px solid transparent;
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    font-family: inherit;
    font-size: 0.95rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition-normal);
}

.chart-tab:hover {
    background: var(--bg-secondary);
    color: var(--text-primary);
}

.chart-tab.active {
    background: var(--bg-secondary);
    border-color: var(--accent-primary);
    color: var(--text-primary);
}

.tab-icon {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.tab-icon.gold {
    background: var(--gold);
}

.tab-icon.silver {
    background: var(--silver);
}

.tab-icon.platinum {
    background: var(--platinum);
}

.tab-icon.btc {
    background: var(--btc);
}

.tab-icon.usd {
    background: var(--usd);
}

.tab-icon.eur {
    background: var(--eur);
}

.chart-container {
    background: var(--bg-card);
    backdrop-filter: blur(20px);
    border-radius: var(--radius-xl);
    border: 1px solid var(--border-color);
    padding: 30px;
    position: relative;
}

.chart-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 25px;
    flex-wrap: wrap;
    gap: 15px;
}

.chart-header h3 {
    font-size: 1.4rem;
    font-weight: 600;
}

.chart-stats {
    display: flex;
    gap: 25px;
}

.stat {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
}

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

.stat-value {
    font-size: 1.1rem;
    font-weight: 600;
}

.chart-wrapper {
    position: relative;
    height: 400px;
}

.chart-wrapper canvas {
    width: 100% !important;
    height: 100% !important;
}

.chart-loading {
    position: absolute;
    inset: 0;
    background: rgba(10, 14, 23, 0.9);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 15px;
    border-radius: var(--radius-xl);
    opacity: 0;
    pointer-events: none;
    transition: var(--transition-normal);
    z-index: 10;
}

.chart-loading.active {
    opacity: 1;
    pointer-events: auto;
}

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

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

.chart-loading span {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.footer {
    text-align: center;
    padding: 30px;
    color: var(--text-muted);
    font-size: 0.9rem;
}

.footer .disclaimer {
    margin-top: 10px;
    font-size: 0.8rem;
    opacity: 0.7;
}

@media (max-width: 768px) {
    .header {
        flex-direction: column;
        gap: 20px;
        text-align: center;
        padding: 20px;
    }

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

    .header-info {
        flex-direction: column;
        gap: 10px;
    }

    .filter-controls {
        flex-direction: column;
        align-items: stretch;
    }

    .apply-btn {
        margin-left: 0;
        justify-content: center;
    }

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

    .chart-wrapper {
        height: 300px;
    }

    .quick-filters {
        width: 100%;
        justify-content: center;
    }

    .filter-btn {
        flex: 1;
        min-width: calc(33% - 10px);
        text-align: center;
    }
}