/* Charts Page Styles */

.charts-page {
    max-width: 1400px;
    margin: 0 auto;
    padding: 30px 20px 60px;
    min-height: calc(100vh - 200px);
}

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

.charts-header h1 {
    color: var(--foreground);
    font-size: 2.2rem;
    font-weight: 700;
    margin: 0 0 10px 0;
}

.charts-header p {
    color: var(--muted-foreground);
    font-size: 1.1rem;
    margin: 0;
}

/* Charts Grid - Desktop first, then responsive */
.charts-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 25px;
}

/* Chart Card */
.chart-card {
    background: var(--card);
    border-radius: 16px;
    border: 1px solid var(--border);
    overflow: hidden;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.chart-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.3);
}

/* Card Header */
.chart-card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 24px;
    border-bottom: 1px solid var(--border);
    flex-wrap: wrap;
    gap: 12px;
}

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

.coin-logo {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    flex-shrink: 0;
}

.coin-title h3 {
    color: var(--foreground);
    font-size: 1.25rem;
    font-weight: 600;
    margin: 0;
}

.coin-symbol {
    color: var(--muted-foreground);
    font-size: 0.85rem;
    display: block;
}

.price-info {
    text-align: right;
}

.current-price {
    color: var(--foreground);
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 4px;
    line-height: 1.2;
}

.price-change {
    font-size: 0.9rem;
    font-weight: 600;
    padding: 4px 10px;
    border-radius: 6px;
    display: inline-block;
}

.price-change.positive {
    color: var(--color-up);
    background: rgba(34, 197, 94, 0.15);
}

.price-change.negative {
    color: var(--color-down);
    background: rgba(239, 68, 68, 0.15);
}

/* Chart Stats */
.chart-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1px;
    background: var(--border);
    border-bottom: 1px solid var(--border);
}

.stat {
    background: var(--card);
    padding: 12px 8px;
    text-align: center;
}

.stat-label {
    display: block;
    color: var(--muted-foreground);
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.3px;
    margin-bottom: 4px;
    white-space: nowrap;
}

.stat-value {
    display: block;
    color: var(--foreground);
    font-size: 0.85rem;
    font-weight: 600;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* Time Filters */
.time-filters {
    display: flex;
    gap: 6px;
    padding: 12px 16px;
    border-bottom: 1px solid var(--border);
    flex-wrap: wrap;
    justify-content: flex-start;
}

.time-btn {
    padding: 8px 14px;
    background: transparent;
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--muted-foreground);
    font-size: 0.8rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
    flex-shrink: 0;
}

.time-btn:hover {
    border-color: var(--primary);
    color: var(--primary);
    background: rgba(245, 158, 11, 0.1);
}

.time-btn.active {
  background: var(--primary);
  border-color: var(--primary);
  color: var(--primary-foreground);
}

/* Chart Container */
.chart-container {
    position: relative;
    height: 280px;
    padding: 16px;
}

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

/* Loading State */
.chart-loading {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 12px;
    color: var(--muted-foreground);
    font-size: 0.9rem;
    background: var(--card);
}

.spinner {
    width: 32px;
    height: 32px;
    border: 3px solid var(--border);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

.chart-loading .error {
    color: var(--color-down);
}

/* Chart Footer */
.chart-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 16px;
    background: rgba(23, 23, 23, 0.5);
    border-top: 1px solid var(--border);
}

.chart-info {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--muted-foreground);
    font-size: 0.75rem;
}

.info-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--color-up);
    flex-shrink: 0;
}

.data-source {
    color: var(--muted-foreground);
    font-size: 0.7rem;
}

/* ============================================
   RESPONSIVE BREAKPOINTS
   ============================================ */

/* Large Desktop (1400px+) */
@media (min-width: 1400px) {
    .charts-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 30px;
    }

    .chart-container {
        height: 320px;
    }
}

/* Desktop / Laptop (1024px - 1399px) */
@media (max-width: 1399px) and (min-width: 1024px) {
    .charts-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }

    .chart-card-header {
        padding: 16px 20px;
    }

    .chart-container {
        height: 260px;
    }
}

/* Tablet Landscape (768px - 1023px) */
@media (max-width: 1023px) and (min-width: 768px) {
    .charts-page {
        padding: 25px 15px 50px;
    }

    .charts-header h1 {
        font-size: 1.9rem;
    }

    .charts-grid {
        grid-template-columns: 1fr;
        gap: 20px;
        max-width: 700px;
        margin: 0 auto;
    }

    .chart-card-header {
        padding: 18px 20px;
    }

    .coin-title h3 {
        font-size: 1.2rem;
    }

    .current-price {
        font-size: 1.4rem;
    }

    .chart-stats {
        grid-template-columns: repeat(4, 1fr);
    }

    .stat {
        padding: 12px 10px;
    }

    .stat-label {
        font-size: 0.7rem;
    }

    .stat-value {
        font-size: 0.85rem;
    }

    .chart-container {
        height: 280px;
        padding: 16px 20px;
    }
}

/* Tablet Portrait (600px - 767px) */
@media (max-width: 767px) and (min-width: 600px) {
    .charts-page {
        padding: 20px 15px 40px;
    }

    .charts-header h1 {
        font-size: 1.7rem;
    }

    .charts-header p {
        font-size: 1rem;
    }

    .charts-grid {
        grid-template-columns: 1fr;
        gap: 18px;
    }

    .chart-card-header {
        padding: 16px 18px;
    }

    .coin-logo {
        width: 36px;
        height: 36px;
    }

    .coin-title h3 {
        font-size: 1.1rem;
    }

    .current-price {
        font-size: 1.3rem;
    }

    .chart-stats {
        grid-template-columns: repeat(4, 1fr);
    }

    .stat {
        padding: 10px 6px;
    }

    .stat-label {
        font-size: 0.65rem;
    }

    .stat-value {
        font-size: 0.8rem;
    }

    .time-filters {
        padding: 10px 14px;
        gap: 6px;
    }

    .time-btn {
        padding: 7px 12px;
        font-size: 0.75rem;
    }

    .chart-container {
        height: 260px;
        padding: 14px;
    }
}

/* Mobile Large (480px - 599px) */
@media (max-width: 599px) and (min-width: 480px) {
    .charts-page {
        padding: 15px 12px 35px;
    }

    .charts-header {
        margin-bottom: 25px;
    }

    .charts-header h1 {
        font-size: 1.5rem;
    }

    .charts-header p {
        font-size: 0.9rem;
    }

    .charts-grid {
        grid-template-columns: 1fr;
        gap: 15px;
    }

    .chart-card {
        border-radius: 12px;
    }

    .chart-card:hover {
        transform: none;
    }

    .chart-card-header {
        flex-direction: row;
        justify-content: space-between;
        padding: 14px 16px;
        gap: 10px;
    }

    .coin-logo {
        width: 32px;
        height: 32px;
    }

    .coin-title {
        gap: 10px;
    }

    .coin-title h3 {
        font-size: 1rem;
    }

    .coin-symbol {
        font-size: 0.75rem;
    }

    .price-info {
        text-align: right;
    }

    .current-price {
        font-size: 1.15rem;
    }

    .price-change {
        font-size: 0.75rem;
        padding: 3px 8px;
    }

    .chart-stats {
        grid-template-columns: repeat(2, 1fr);
    }

    .stat {
        padding: 10px 12px;
    }

    .stat-label {
        font-size: 0.65rem;
    }

    .stat-value {
        font-size: 0.8rem;
    }

    .time-filters {
        padding: 10px 12px;
        gap: 5px;
        justify-content: space-between;
    }

    .time-btn {
        padding: 6px 10px;
        font-size: 0.7rem;
        flex: 1;
        text-align: center;
    }

    .chart-container {
        height: 220px;
        padding: 12px;
    }

    .chart-footer {
        padding: 8px 12px;
    }

    .chart-info {
        font-size: 0.7rem;
    }

    .data-source {
        font-size: 0.65rem;
    }
}

/* Mobile Small (320px - 479px) */
@media (max-width: 479px) {
    .charts-page {
        padding: 12px 10px 30px;
    }

    .charts-header {
        margin-bottom: 20px;
    }

    .charts-header h1 {
        font-size: 1.3rem;
    }

    .charts-header p {
        font-size: 0.85rem;
    }

    .charts-grid {
        grid-template-columns: 1fr;
        gap: 12px;
    }

    .chart-card {
        border-radius: 10px;
    }

    .chart-card:hover {
        transform: none;
        box-shadow: none;
    }

    .chart-card-header {
        flex-direction: column;
        align-items: flex-start;
        padding: 12px 14px;
        gap: 10px;
    }

    .coin-logo {
        width: 30px;
        height: 30px;
    }

    .coin-title {
        gap: 8px;
    }

    .coin-title h3 {
        font-size: 0.95rem;
    }

    .coin-symbol {
        font-size: 0.7rem;
    }

    .price-info {
        text-align: left;
        width: 100%;
        display: flex;
        align-items: center;
        justify-content: space-between;
    }

    .current-price {
        font-size: 1.1rem;
        margin-bottom: 0;
    }

    .price-change {
        font-size: 0.7rem;
        padding: 3px 6px;
    }

    .chart-stats {
        grid-template-columns: repeat(2, 1fr);
    }

    .stat {
        padding: 8px 10px;
    }

    .stat-label {
        font-size: 0.6rem;
        letter-spacing: 0;
    }

    .stat-value {
        font-size: 0.75rem;
    }

    .time-filters {
        padding: 8px 10px;
        gap: 4px;
        justify-content: space-between;
    }

    .time-btn {
        padding: 5px 8px;
        font-size: 0.65rem;
        border-radius: 6px;
        flex: 1;
        text-align: center;
        min-width: 0;
    }

    .chart-container {
        height: 200px;
        padding: 10px;
    }

    .chart-footer {
        padding: 8px 10px;
        flex-direction: row;
        justify-content: space-between;
    }

    .chart-info {
        font-size: 0.65rem;
        gap: 5px;
    }

    .info-dot {
        width: 6px;
        height: 6px;
    }

    .data-source {
        font-size: 0.6rem;
    }
}

/* Extra Small Mobile (below 320px) */
@media (max-width: 319px) {
    .charts-page {
        padding: 10px 8px 25px;
    }

    .charts-header h1 {
        font-size: 1.1rem;
    }

    .charts-header p {
        font-size: 0.8rem;
    }

    .chart-card-header {
        padding: 10px 12px;
    }

    .coin-logo {
        width: 26px;
        height: 26px;
    }

    .coin-title h3 {
        font-size: 0.85rem;
    }

    .current-price {
        font-size: 1rem;
    }

    .stat {
        padding: 6px 8px;
    }

    .stat-label {
        font-size: 0.55rem;
    }

    .stat-value {
        font-size: 0.7rem;
    }

    .time-btn {
        padding: 4px 6px;
        font-size: 0.6rem;
    }

    .chart-container {
        height: 180px;
        padding: 8px;
    }
}