:root {
    --primary-color: #d4af37;
    /* Gold */
    --bg-color: #121212;
    --text-color: #e0e0e0;
    --card-bg: #1e1e1e;
    --border-color: #333;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    margin: 0;
    padding: 0;
    line-height: 1.6;
    overflow-x: hidden;
}

.container {
    width: 95%;
    max-width: 1200px;
    margin: 2rem auto;
    padding: 2rem;
    background-color: var(--card-bg);
    border-radius: 12px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
    box-sizing: border-box;
}

header {
    text-align: center;
    margin-bottom: 2rem;
    border-bottom: 2px solid var(--primary-color);
    padding-bottom: 1rem;
}

h1 {
    color: var(--primary-color);
    margin: 0;
    font-size: 2.5rem;
    letter-spacing: 1px;
}

header p {
    color: #888;
    margin-top: 0.5rem;
}

.chart-container {
    background: #1a1a1a;
    padding: 20px;
    border-radius: 12px;
    border: 1px solid #333;
    margin-bottom: 30px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

.stats-dashboard {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.stat-card {
    background: linear-gradient(145deg, #1e1e1e, #161616);
    padding: 20px;
    border-radius: 12px;
    border: 1px solid #333;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
    transition: transform 0.3s ease, border-color 0.3s ease;
}

.stat-card:hover {
    transform: translateY(-5px);
    border-color: var(--primary-color);
}

.top-filter {
    margin-bottom: 25px;
    align-items: center;
}

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

.detail-item {
    font-size: 0.75rem;
    color: #888;
    font-weight: 500;
}

#current-source {
    color: var(--primary-color);
    font-weight: 700;
    text-transform: uppercase;
    font-size: 0.8rem;
}

.stat-label {
    font-size: 0.8rem;
    color: #888;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 8px;
    font-weight: 600;
}

.stat-value {
    font-size: 1.8rem;
    font-weight: 800;
    color: var(--primary-color);
    margin-bottom: 4px;
}

.stat-purity {
    font-size: 0.75rem;
    color: #555;
    font-weight: 600;
}

.filter-controls {
    margin-bottom: 25px;
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    background: #1a1a1a;
    padding: 20px;
    border-radius: 12px;
    border: 1px solid #333;
    box-shadow: inset 0 2px 5px rgba(0, 0, 0, 0.5);
}

.filter-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.filter-label {
    font-size: 0.8rem;
    color: #666;
    text-transform: uppercase;
    letter-spacing: 1px;
    font-weight: 700;
}

.tabs-selector {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    background: #252525;
    padding: 6px;
    border-radius: 10px;
    width: fit-content;
}

.tab-btn {
    background: transparent;
    border: none;
    color: #888;
    padding: 10px 25px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    border-radius: 8px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.tab-btn:hover {
    color: #fff;
    background: rgba(212, 175, 55, 0.1);
}

.tab-btn.active,
.time-btn.active {
    background: var(--primary-color);
    color: #121212;
    box-shadow: 0 4px 15px rgba(212, 175, 55, 0.3);
}

.time-btn {
    background: transparent;
    border: none;
    color: #888;
    padding: 10px 18px;
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    border-radius: 8px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.time-btn:hover {
    color: #fff;
    background: rgba(212, 175, 55, 0.1);
}

main {
    margin-top: 2rem;
}

/* Custom Range Picker Styles */
.range-inputs {
    display: flex;
    align-items: center;
    gap: 12px;
    background: #252525;
    padding: 6px 12px;
    border-radius: 10px;
    width: fit-content;
}

.date-input {
    background: transparent;
    border: none;
    color: var(--text-color);
    font-family: 'Inter', sans-serif;
    font-size: 0.9rem;
    font-weight: 500;
    padding: 5px;
    cursor: pointer;
    outline: none;
    transition: all 0.3s ease;
}

.date-input::-webkit-calendar-picker-indicator {
    filter: invert(0.7) sepia(1) saturate(5) hue-rotate(10deg);
    /* Gold-ish tint */
    cursor: pointer;
}

.date-input:hover {
    color: var(--primary-color);
}

.range-separator {
    color: #666;
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
}

footer {
    text-align: center;
    margin-top: 3rem;
    font-size: 0.8rem;
    color: #555;
}

/* DataTables Overrides for Dark Mode */
.dataTables_wrapper {
    color: var(--text-color) !important;
}

.dataTables_wrapper .dataTables_length,
.dataTables_wrapper .dataTables_filter,
.dataTables_wrapper .dataTables_info,
.dataTables_wrapper .dataTables_processing,
.dataTables_wrapper .dataTables_paginate {
    color: var(--text-color) !important;
}

.dataTables_wrapper .dataTables_filter {
    margin-bottom: 2rem;
}

.dataTables_wrapper .dataTables_filter input {
    background-color: #2a2a2a;
    border: 1px solid var(--border-color);
    color: white;
    border-radius: 8px;
    padding: 10px 15px;
    margin-left: 10px;
    width: 250px;
    transition: border-color 0.3s, box-shadow 0.3s;
}

.dataTables_wrapper .dataTables_filter input:focus {
    border-color: var(--primary-color);
    outline: none;
    box-shadow: 0 0 8px rgba(212, 175, 55, 0.2);
}

table.dataTable {
    border-collapse: collapse !important;
    background-color: var(--card-bg) !important;
}

table.dataTable thead th {
    background-color: #252525;
    color: var(--primary-color);
    border-bottom: 1px solid var(--border-color) !important;
    padding: 12px 10px;
}

table.dataTable tbody td {
    border-bottom: 1px solid var(--border-color);
    padding: 12px 10px;
}

table.dataTable.no-footer {
    border-bottom: 1px solid var(--border-color) !important;
}

.dataTables_wrapper .dataTables_paginate .paginate_button {
    color: var(--text-color) !important;
}

.dataTables_wrapper .dataTables_paginate .paginate_button.current {
    background: var(--primary-color) !important;
    border: 1px solid var(--primary-color) !important;
    color: black !important;
}

/* Hover effect */
table.dataTable tbody tr:hover {
    background-color: #2a2a2a !important;
}

@media (max-width: 600px) {
    .container {
        width: 100%;
        margin: 0;
        padding: 1.5rem 1rem;
        border-radius: 0;
    }

    h1 {
        font-size: 1.8rem;
    }

    .tabs-selector {
        width: 100%;
        gap: 5px;
        justify-content: stretch;
        padding: 4px;
        box-sizing: border-box;
    }

    .tab-btn,
    .time-btn {
        padding: 8px 12px;
        font-size: 0.8rem;
        flex: 1 1 auto;
        min-width: 100px;
        text-align: center;
    }

    .filter-controls {
        padding: 15px;
        gap: 15px;
    }

    .stats-dashboard {
        grid-template-columns: 1fr;
    }
}