/* ── CSS Variables ── */
:root {
    --bg-main: #0f0f17;
    --bg-card: #1a1a2e;
    --bg-sidebar: #12121e;
    --accent: #6c63ff;
    --accent-hover: #5a52e0;
    --text: #e0e0e0;
    --text-dim: #8888a0;
    --border: #2a2a40;
    --success: #00c896;
    --warning: #f5a623;
    --danger: #e74c3c;
    --sidebar-width: 220px;
}

/* ── Reset & Base ── */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html, body {
    height: 100%;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--bg-main);
    color: var(--text);
    font-size: 14px;
    line-height: 1.6;
}

a {
    color: var(--accent);
    text-decoration: none;
    transition: color 0.2s;
}

a:hover {
    color: var(--accent-hover);
}

/* ── Sidebar ── */
.sidebar {
    position: fixed;
    top: 0;
    left: 0;
    width: var(--sidebar-width);
    height: 100vh;
    background: var(--bg-sidebar);
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    z-index: 100;
    overflow-y: auto;
}

.sidebar-brand {
    padding: 24px 20px 20px;
    border-bottom: 1px solid var(--border);
}

.sidebar-brand h2 {
    font-size: 16px;
    font-weight: 700;
    color: var(--text);
    letter-spacing: 0.5px;
}

.sidebar-brand span {
    font-size: 11px;
    color: var(--text-dim);
    display: block;
    margin-top: 2px;
}

.sidebar-nav {
    list-style: none;
    padding: 12px 0;
    flex: 1;
}

.sidebar-nav li {
    margin: 2px 0;
}

.sidebar-nav a {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 20px;
    color: var(--text-dim);
    font-size: 13px;
    font-weight: 500;
    border-left: 3px solid transparent;
    transition: all 0.2s;
}

.sidebar-nav a:hover,
.sidebar-nav a.active {
    color: var(--text);
    background: rgba(108, 99, 255, 0.08);
    border-left-color: var(--accent);
}

.sidebar-nav a.active {
    background: rgba(108, 99, 255, 0.12);
}

.sidebar-nav .nav-icon {
    font-size: 16px;
    width: 22px;
    text-align: center;
    flex-shrink: 0;
}

.sidebar-footer {
    padding: 16px 20px;
    border-top: 1px solid var(--border);
    font-size: 11px;
    color: var(--text-dim);
}

/* ── Main Content ── */
.main-content {
    margin-left: var(--sidebar-width);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.top-bar {
    padding: 20px 32px;
    border-bottom: 1px solid var(--border);
    background: var(--bg-sidebar);
}

.top-bar h1 {
    font-size: 20px;
    font-weight: 600;
    color: var(--text);
}

.content-area {
    padding: 24px 32px;
    flex: 1;
}

/* ── Cards ── */
.card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 20px 24px;
}

.card-header {
    font-size: 14px;
    font-weight: 600;
    color: var(--text);
    margin-bottom: 16px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--border);
}

/* ── Stat Cards ── */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 16px;
    margin-bottom: 24px;
}

.stat-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 20px 24px;
    display: flex;
    align-items: center;
    gap: 16px;
    transition: border-color 0.2s;
}

.stat-card:hover {
    border-color: var(--accent);
}

.stat-icon {
    font-size: 28px;
    width: 52px;
    height: 52px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(108, 99, 255, 0.1);
    border-radius: 10px;
    flex-shrink: 0;
}

.stat-info {
    flex: 1;
    min-width: 0;
}

.stat-label {
    font-size: 12px;
    color: var(--text-dim);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.stat-value {
    font-size: 26px;
    font-weight: 700;
    color: var(--text);
    line-height: 1.2;
    margin-top: 2px;
}

/* ── Tables ── */
.table-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 20px 24px;
    overflow-x: auto;
}

.table-card .card-header {
    margin-bottom: 16px;
}

table.dataTable {
    width: 100% !important;
    border-collapse: collapse;
}

/* ── Badges ── */
.badge {
    display: inline-block;
    padding: 3px 10px;
    border-radius: 20px;
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.3px;
}

.badge-success {
    background: rgba(0, 200, 150, 0.15);
    color: var(--success);
}

.badge-warning {
    background: rgba(245, 166, 35, 0.15);
    color: var(--warning);
}

.badge-danger {
    background: rgba(231, 76, 60, 0.15);
    color: var(--danger);
}

/* ── Buttons ── */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 16px;
    border: 1px solid var(--border);
    border-radius: 6px;
    font-family: 'Inter', sans-serif;
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
    background: var(--bg-card);
    color: var(--text);
}

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

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

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

.btn-sm {
    padding: 6px 14px;
    font-size: 12px;
    border-radius: 6px;
    cursor: pointer;
    border: none;
    font-family: 'Inter', sans-serif;
    transition: opacity 0.2s;
}
.btn-sm:hover { opacity: 0.85; }
.btn-accent {
    background: var(--accent);
    color: #fff;
}

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

/* ── Form Controls ── */
.form-select {
    background: var(--bg-main);
    color: var(--text);
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 8px 12px;
    font-family: 'Inter', sans-serif;
    font-size: 13px;
    outline: none;
    transition: border-color 0.2s;
}

.form-select:focus {
    border-color: var(--accent);
}

.form-input {
    background: var(--bg-main);
    color: var(--text);
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 6px 10px;
    font-family: 'Inter', sans-serif;
    font-size: 13px;
    outline: none;
    transition: border-color 0.2s;
}
.form-input:focus {
    border-color: var(--accent);
}

/* ── Section Header ── */
.section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 16px;
    flex-wrap: wrap;
    gap: 12px;
}

.section-title {
    font-size: 16px;
    font-weight: 600;
    color: var(--text);
}

/* ── DataTables Dark Theme ── */
.dataTables_wrapper {
    color: var(--text-dim);
}

.dataTables_wrapper .dataTables_filter input,
.dataTables_wrapper .dataTables_length select {
    background: var(--bg-main);
    color: var(--text);
    border: 1px solid var(--border);
    border-radius: 4px;
    padding: 4px 8px;
    outline: none;
}

.dataTables_wrapper .dataTables_filter input:focus {
    border-color: var(--accent);
}

.dataTables_wrapper .dataTables_filter label,
.dataTables_wrapper .dataTables_length label {
    color: var(--text-dim);
    font-size: 13px;
}

table.dataTable {
    color: var(--text);
}

table.dataTable thead th {
    background: var(--bg-sidebar);
    color: var(--text-dim);
    border-bottom: 1px solid var(--border);
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.3px;
    padding: 10px 14px;
}

table.dataTable tbody tr {
    background: var(--bg-card);
}

table.dataTable tbody tr:hover {
    background: #252540;
}

table.dataTable tbody td {
    border-bottom: 1px solid var(--border);
    padding: 10px 14px;
    font-size: 13px;
}

.dataTables_info,
.dataTables_paginate {
    color: var(--text-dim) !important;
    font-size: 13px;
    margin-top: 12px !important;
}

.dataTables_paginate .paginate_button {
    color: var(--text) !important;
    border: 1px solid var(--border) !important;
    background: var(--bg-card) !important;
    border-radius: 4px !important;
    margin: 0 2px !important;
    padding: 4px 10px !important;
    font-size: 12px !important;
}

.dataTables_paginate .paginate_button:hover {
    background: #252540 !important;
    border-color: var(--accent) !important;
    color: var(--text) !important;
}

.dataTables_paginate .paginate_button.current {
    background: var(--accent) !important;
    color: #fff !important;
    border: none !important;
}

.dataTables_paginate .paginate_button.disabled {
    opacity: 0.4;
}

.dataTables_empty {
    color: var(--text-dim);
    padding: 24px !important;
    text-align: center;
}

/* ── Scrollbar ── */
::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}

::-webkit-scrollbar-track {
    background: var(--bg-main);
}

::-webkit-scrollbar-thumb {
    background: var(--border);
    border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--text-dim);
}

/* ── Responsive ── */
@media (max-width: 768px) {
    .sidebar {
        width: 60px;
    }

    .sidebar-brand h2,
    .sidebar-brand span,
    .sidebar-nav .nav-label,
    .sidebar-footer {
        display: none;
    }

    .sidebar-brand {
        padding: 16px 12px;
        text-align: center;
    }

    .sidebar-nav a {
        justify-content: center;
        padding: 12px;
        border-left: none;
        border-right: 3px solid transparent;
    }

    .sidebar-nav a:hover,
    .sidebar-nav a.active {
        border-left: none;
        border-right-color: var(--accent);
    }

    .main-content {
        margin-left: 60px;
    }

    .top-bar,
    .content-area {
        padding-left: 16px;
        padding-right: 16px;
    }

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