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

:root {
    --primary-gold: #FFD700;
    --secondary-gold: #FFA500;
    --dark-bg: #0a0a0a;
    --card-bg: rgba(255, 255, 255, 0.05);
    --card-hover: rgba(255, 255, 255, 0.1);
    --text-primary: #ffffff;
    --text-secondary: rgba(255, 255, 255, 0.7);
    --positive: #10b981;
    --negative: #ef4444;
    --border-color: rgba(255, 215, 0, 0.2);
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 50%, #0f3460 100%);
    color: var(--text-primary);
    min-height: 100vh;
    padding: 20px;
    position: relative;
    overflow-x: hidden;
    width: 100%;
    box-sizing: border-box;
}

body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(circle at 20% 50%, rgba(255, 215, 0, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(255, 165, 0, 0.1) 0%, transparent 50%);
    pointer-events: none;
    z-index: 0;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
    width: 100%;
    box-sizing: border-box;
}

/* Header */
.header {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 20px 30px;
    margin-bottom: 30px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
    animation: slideDown 0.6s ease-out;
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo-img {
    height: 50px;
    width: auto;
    object-fit: contain;
}

.logo h1 {
    font-size: 28px;
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary-gold), var(--secondary-gold));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin: 0;
}

.time-display {
    font-size: 18px;
    font-weight: 500;
    color: var(--text-secondary);
    letter-spacing: 2px;
}

#current-time {
    font-variant-numeric: tabular-nums;
}

/* Price Grid */
.price-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
    animation: fadeIn 0.8s ease-out;
    width: 100%;
    box-sizing: border-box;
}

.price-card {
    background: var(--card-bg);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 24px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

.price-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 215, 0, 0.1), transparent);
    transition: left 0.5s;
}

.price-card:hover::before {
    left: 100%;
}

.price-card:hover {
    transform: translateY(-5px);
    background: var(--card-hover);
    border-color: rgba(255, 215, 0, 0.4);
    box-shadow: 0 12px 40px rgba(255, 215, 0, 0.2);
}

.price-card.premium {
    background: linear-gradient(135deg, rgba(255, 215, 0, 0.15), rgba(255, 165, 0, 0.1));
    border-color: rgba(255, 215, 0, 0.4);
}

.price-card.premium .card-title {
    color: var(--primary-gold);
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
}

.card-title {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.card-badge {
    background: linear-gradient(135deg, var(--primary-gold), var(--secondary-gold));
    color: var(--dark-bg);
    padding: 4px 10px;
    border-radius: 8px;
    font-size: 10px;
    font-weight: 700;
    text-transform: uppercase;
}

.card-price {
    font-size: 28px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 12px;
    font-variant-numeric: tabular-nums;
}

.card-change {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 14px;
    font-weight: 600;
}

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

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

.card-change .arrow {
    font-size: 16px;
}

/* Info Section */
.info-section {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
    animation: fadeIn 1s ease-out;
    width: 100%;
    box-sizing: border-box;
}

@media (max-width: 768px) {
    .info-section {
        display: flex !important;
        flex-direction: column !important;
        gap: 16px !important;
        width: 100% !important;
        padding: 0 !important;
    }
}

.chart-card {
    grid-column: 1 / -1;
    width: 100%;
    max-width: 100%;
    box-sizing: border-box;
}

@media (max-width: 768px) {
    .info-section {
        grid-template-columns: 1fr !important;
        gap: 16px;
        width: 100%;
        padding: 0;
        margin: 0;
    }
    
    .chart-card {
        grid-column: 1 !important;
        width: 100%;
        max-width: 100%;
        padding: 16px 12px !important;
        margin: 0;
    }
    
    .chart-container {
        height: 280px !important;
        margin-top: 8px;
        width: 100%;
    }
    
    .section-title {
        font-size: 16px !important;
        margin-bottom: 12px !important;
        line-height: 1.3;
    }
}

.info-card {
    background: var(--card-bg);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 30px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
    width: 100%;
    box-sizing: border-box;
    overflow: hidden;
}

.chart-container {
    position: relative;
    width: 100%;
    height: 400px;
    margin-top: 10px;
}

.section-title {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 24px;
    color: var(--text-primary);
}

.info-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

.info-item {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.info-label {
    font-size: 13px;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.info-value {
    font-size: 24px;
    font-weight: 700;
    color: var(--text-primary);
    font-variant-numeric: tabular-nums;
}

.info-value.positive {
    color: var(--positive);
}

.info-value.negative {
    color: var(--negative);
}

/* Table */
.table-container {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    margin: 0 -10px;
    padding: 0 10px;
}

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

.price-table thead {
    background: rgba(255, 215, 0, 0.1);
}

.price-table th {
    padding: 14px;
    text-align: left;
    font-size: 13px;
    font-weight: 600;
    color: var(--primary-gold);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    border-bottom: 2px solid var(--border-color);
    white-space: nowrap;
}

.price-table td {
    padding: 16px 14px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    font-variant-numeric: tabular-nums;
    white-space: nowrap;
}

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

.price-table tbody tr:hover {
    background: rgba(255, 215, 0, 0.05);
}

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

/* Converter */
.converter {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.converter-input {
    display: flex;
    gap: 12px;
}

@media (max-width: 768px) {
    .converter {
        gap: 16px;
    }
    
    .converter-input {
        flex-direction: column;
        gap: 12px;
    }
    
    .converter-input input,
    .converter-input select {
        width: 100%;
    }
}

.converter-input input {
    flex: 1;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 14px 18px;
    color: var(--text-primary);
    font-size: 16px;
    font-weight: 600;
    transition: all 0.3s;
    width: 100%;
    box-sizing: border-box;
}

.converter-input input:focus {
    outline: none;
    border-color: var(--primary-gold);
    background: rgba(255, 255, 255, 0.08);
    box-shadow: 0 0 0 3px rgba(255, 215, 0, 0.1);
}

.converter-input select {
    flex: 1;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 14px 18px;
    color: var(--text-primary);
    font-size: 16px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s;
    width: 100%;
    box-sizing: border-box;
}

.converter-input select:focus {
    outline: none;
    border-color: var(--primary-gold);
    background: rgba(255, 255, 255, 0.08);
    box-shadow: 0 0 0 3px rgba(255, 215, 0, 0.1);
}

.converter-result {
    display: flex;
    flex-direction: column;
    gap: 16px;
    padding: 20px;
    background: rgba(255, 215, 0, 0.05);
    border-radius: 12px;
    border: 1px solid var(--border-color);
}

.result-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.result-label {
    font-size: 14px;
    color: var(--text-secondary);
}

.result-value {
    font-size: 20px;
    font-weight: 700;
    color: var(--primary-gold);
    font-variant-numeric: tabular-nums;
}

/* Animations */
@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

/* Responsive Design */
@media (max-width: 768px) {
    body {
        padding: 10px;
        overflow-x: hidden;
    }
    
    .container {
        width: 100%;
        max-width: 100%;
        padding: 0;
    }

    .price-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 12px;
    }

    .price-card {
        padding: 18px;
    }

    .card-price {
        font-size: 22px;
    }

    .info-section {
        grid-template-columns: 1fr !important;
        gap: 20px;
    }

    .info-card {
        padding: 16px 12px !important;
        width: 100% !important;
        max-width: 100% !important;
        box-sizing: border-box !important;
        margin: 0 !important;
        border-radius: 16px;
    }
    
    .chart-card {
        padding: 16px 12px !important;
    }

    .info-grid {
        grid-template-columns: repeat(2, 1fr) !important;
        gap: 12px !important;
    }

    .info-item {
        width: 100%;
        min-width: 0;
    }

    .info-label {
        font-size: 11px !important;
        letter-spacing: 0.3px;
    }

    .info-value {
        font-size: 18px !important;
        word-break: break-word;
        line-height: 1.3;
    }

    .header {
        padding: 15px 20px;
        margin-bottom: 20px;
    }

    .header-content {
        flex-direction: column;
        gap: 12px;
        text-align: center;
    }

    .logo {
        flex-direction: column;
        align-items: center;
        gap: 8px;
    }

    .logo-img {
        height: 35px;
        max-width: 100%;
    }

    .logo h1 {
        font-size: 20px;
        line-height: 1.2;
    }
    
    .time-display {
        font-size: 14px;
    }

    .table-container {
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        margin: 0 -12px !important;
        padding: 0 12px !important;
        width: calc(100% + 24px) !important;
        max-width: 100vw;
    }

    .price-table {
        min-width: 500px;
        font-size: 10px !important;
    }

    .price-table th {
        padding: 8px 4px !important;
        font-size: 9px !important;
        white-space: nowrap;
    }

    .price-table td {
        padding: 8px 4px !important;
        font-size: 9px !important;
        white-space: nowrap;
    }

    .section-title {
        font-size: 16px !important;
        margin-bottom: 12px !important;
        word-break: break-word;
        line-height: 1.3;
    }

    .converter {
        gap: 12px !important;
    }

    .converter-input {
        flex-direction: column !important;
        gap: 10px !important;
    }

    .converter-input input,
    .converter-input select {
        width: 100% !important;
        padding: 12px 14px !important;
        font-size: 14px !important;
    }

    .converter-result {
        padding: 14px !important;
        gap: 10px !important;
    }

    .result-item {
        flex-direction: row !important;
        justify-content: space-between !important;
        align-items: center !important;
        gap: 8px !important;
    }

    .result-label {
        font-size: 12px !important;
        white-space: nowrap;
    }

    .result-value {
        font-size: 16px !important;
        text-align: right;
        flex-shrink: 0;
    }
}

@media (max-width: 480px) {
    body {
        padding: 8px;
        overflow-x: hidden;
    }
    
    .container {
        width: 100%;
        max-width: 100%;
        padding: 0;
    }

    .price-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 10px;
    }

    .price-card {
        padding: 14px;
        min-height: auto;
    }

    .card-price {
        font-size: 18px;
        margin-bottom: 8px;
    }

    .card-title {
        font-size: 11px;
        letter-spacing: 0.3px;
    }
    
    .card-header {
        margin-bottom: 10px;
    }

    .card-change {
        font-size: 11px;
        gap: 4px;
    }
    
    .card-badge {
        font-size: 8px;
        padding: 3px 6px;
    }

    .info-section {
        gap: 12px !important;
        width: 100% !important;
        padding: 0 !important;
    }

    .info-card {
        padding: 14px 10px !important;
        width: 100% !important;
        max-width: 100% !important;
        box-sizing: border-box !important;
        margin: 0 !important;
        border-radius: 12px;
    }
    
    .chart-card {
        padding: 14px 10px !important;
    }
    
    .chart-container {
        height: 240px !important;
        margin-top: 6px;
    }

    .info-grid {
        grid-template-columns: repeat(2, 1fr) !important;
        gap: 10px !important;
    }

    .info-label {
        font-size: 10px !important;
    }

    .info-value {
        font-size: 16px !important;
    }

    .section-title {
        font-size: 14px !important;
        margin-bottom: 10px !important;
    }

    .table-container {
        margin: 0 -10px !important;
        padding: 0 10px !important;
        width: calc(100% + 20px) !important;
    }
    
    .chart-container {
        height: 240px !important;
        margin-top: 6px;
    }

    .price-table {
        min-width: 460px;
        font-size: 9px !important;
    }
    
    .price-table th,
    .price-table td {
        padding: 6px 3px !important;
        font-size: 8px !important;
    }

    .price-table th {
        padding: 8px 5px;
        font-size: 9px;
    }

    .price-table td {
        padding: 8px 5px;
        font-size: 10px;
    }

    .converter {
        gap: 10px !important;
    }

    .converter-input input,
    .converter-input select {
        padding: 10px 12px !important;
        font-size: 13px !important;
    }

    .converter-result {
        padding: 12px !important;
        gap: 8px !important;
    }

    .result-item {
        gap: 6px !important;
    }

    .result-label {
        font-size: 11px !important;
    }

    .result-value {
        font-size: 15px !important;
    }

    .logo-img {
        height: 35px;
    }

    .logo h1 {
        font-size: 20px;
    }

    .header {
        padding: 12px 15px;
        margin-bottom: 15px;
        border-radius: 16px;
    }

    .time-display {
        font-size: 14px;
    }
    
    .logo-img {
        height: 30px;
    }
    
    .logo h1 {
        font-size: 18px;
    }
    
    .main-content {
        width: 100%;
        overflow-x: hidden;
    }
}

/* Scrollbar Styling */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: rgba(255, 255, 255, 0.05);
}

::-webkit-scrollbar-thumb {
    background: linear-gradient(135deg, var(--primary-gold), var(--secondary-gold));
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--primary-gold);
}