:root {
    --adm-bg: #0b0f19;
    --adm-sidebar: #111827;
    --adm-card: #151c2f;
    --adm-card-hover: #1a2238;
    --adm-border: rgba(255, 255, 255, 0.08);
    --adm-text: #e5e7eb;
    --adm-muted: #94a3b8;
    --adm-accent: #10b981;
    --adm-accent-2: #3b82f6;
    --adm-danger: #ef4444;
    --adm-warning: #f59e0b;
    --adm-radius: 14px;
    --adm-shadow: 0 10px 40px rgba(0, 0, 0, 0.35);
}

* { box-sizing: border-box; }

body.admin-body {
    margin: 0;
    font-family: Inter, system-ui, -apple-system, sans-serif;
    background: radial-gradient(circle at top right, rgba(16, 185, 129, 0.08), transparent 40%),
                radial-gradient(circle at bottom left, rgba(59, 130, 246, 0.06), transparent 35%),
                var(--adm-bg);
    color: var(--adm-text);
    min-height: 100vh;
}

.admin-shell {
    display: grid;
    grid-template-columns: 260px 1fr;
    min-height: 100vh;
}

.admin-sidebar {
    background: linear-gradient(180deg, #0f172a 0%, #111827 100%);
    border-right: 1px solid var(--adm-border);
    padding: 1.25rem;
    position: sticky;
    top: 0;
    height: 100vh;
    overflow-y: auto;
}

.admin-brand {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.5rem 0.75rem 1.5rem;
    border-bottom: 1px solid var(--adm-border);
    margin-bottom: 1rem;
}

.admin-brand-icon {
    width: 42px;
    height: 42px;
    border-radius: 12px;
    background: linear-gradient(135deg, var(--adm-accent), #059669);
    display: grid;
    place-items: center;
    font-weight: 800;
    color: #fff;
    box-shadow: 0 8px 24px rgba(16, 185, 129, 0.35);
}

.admin-brand h1 {
    font-size: 1rem;
    margin: 0;
    font-weight: 700;
}

.admin-brand p {
    margin: 0;
    font-size: 0.75rem;
    color: var(--adm-muted);
}

.admin-nav {
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
}

.admin-nav a {
    color: var(--adm-muted);
    text-decoration: none;
    padding: 0.75rem 0.9rem;
    border-radius: 10px;
    display: flex;
    align-items: center;
    gap: 0.65rem;
    font-size: 0.92rem;
    transition: 0.2s ease;
}

.admin-nav a:hover,
.admin-nav a.active {
    background: rgba(16, 185, 129, 0.12);
    color: #fff;
}

.admin-nav a.active {
    box-shadow: inset 3px 0 0 var(--adm-accent);
}

.admin-nav .badge-count {
    margin-left: auto;
    background: rgba(255, 255, 255, 0.08);
    padding: 0.15rem 0.5rem;
    border-radius: 999px;
    font-size: 0.72rem;
}

.admin-sidebar-footer {
    margin-top: auto;
    padding-top: 1rem;
    border-top: 1px solid var(--adm-border);
}

.admin-main {
    padding: 1.5rem 1.75rem 2rem;
}

.admin-topbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.admin-topbar h2 {
    margin: 0;
    font-size: 1.45rem;
    font-weight: 700;
}

.admin-topbar-actions {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.admin-btn {
    border: 1px solid var(--adm-border);
    background: var(--adm-card);
    color: var(--adm-text);
    border-radius: 10px;
    padding: 0.55rem 0.95rem;
    font-size: 0.85rem;
    cursor: pointer;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    transition: 0.2s ease;
}

.admin-btn:hover {
    background: var(--adm-card-hover);
    color: #fff;
}

.admin-btn-primary {
    background: linear-gradient(135deg, var(--adm-accent), #059669);
    border-color: transparent;
    color: #fff;
    font-weight: 600;
}

.admin-btn-primary:hover {
    filter: brightness(1.05);
    color: #fff;
}

.admin-btn-danger {
    background: rgba(239, 68, 68, 0.15);
    border-color: rgba(239, 68, 68, 0.35);
    color: #fca5a5;
}

.admin-btn-sm {
    padding: 0.35rem 0.65rem;
    font-size: 0.78rem;
}

.admin-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.admin-stat {
    background: var(--adm-card);
    border: 1px solid var(--adm-border);
    border-radius: var(--adm-radius);
    padding: 1.1rem 1.15rem;
    box-shadow: var(--adm-shadow);
}

.admin-stat-label {
    color: var(--adm-muted);
    font-size: 0.78rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.admin-stat-value {
    font-size: 1.65rem;
    font-weight: 700;
    margin-top: 0.35rem;
}

.admin-stat-sub {
    font-size: 0.78rem;
    color: var(--adm-muted);
    margin-top: 0.25rem;
}

.admin-stat.accent-green { border-color: rgba(16, 185, 129, 0.35); }
.admin-stat.accent-blue { border-color: rgba(59, 130, 246, 0.35); }
.admin-stat.accent-amber { border-color: rgba(245, 158, 11, 0.35); }
.admin-stat.accent-red { border-color: rgba(239, 68, 68, 0.35); }

.admin-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 1rem;
}

.admin-card {
    background: var(--adm-card);
    border: 1px solid var(--adm-border);
    border-radius: var(--adm-radius);
    box-shadow: var(--adm-shadow);
    overflow: hidden;
}

.admin-card-header {
    padding: 1rem 1.15rem;
    border-bottom: 1px solid var(--adm-border);
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 0.75rem;
}

.admin-card-header h3 {
    margin: 0;
    font-size: 0.95rem;
    font-weight: 600;
}

.admin-card-body {
    padding: 1rem 1.15rem;
}

.admin-section {
    display: none;
}

.admin-section.active {
    display: block;
}

.admin-table-wrap {
    overflow-x: auto;
}

.admin-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.84rem;
}

.admin-table th,
.admin-table td {
    padding: 0.75rem 0.85rem;
    border-bottom: 1px solid var(--adm-border);
    text-align: left;
    vertical-align: middle;
}

.admin-table th {
    color: var(--adm-muted);
    font-weight: 600;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

.admin-table tr:hover td {
    background: rgba(255, 255, 255, 0.02);
}

.status-pill {
    display: inline-flex;
    align-items: center;
    padding: 0.2rem 0.55rem;
    border-radius: 999px;
    font-size: 0.72rem;
    font-weight: 600;
}

.status-pill.success { background: rgba(16,185,129,.15); color: #6ee7b7; }
.status-pill.warning { background: rgba(245,158,11,.15); color: #fcd34d; }
.status-pill.danger { background: rgba(239,68,68,.15); color: #fca5a5; }
.status-pill.info { background: rgba(59,130,246,.15); color: #93c5fd; }
.status-pill.secondary { background: rgba(148,163,184,.15); color: #cbd5e1; }

.coin-pill {
    display: inline-block;
    padding: 0.15rem 0.45rem;
    border-radius: 6px;
    font-size: 0.72rem;
    font-weight: 700;
}
.coin-btc { background: rgba(247,147,26,.15); color: #fbbf24; }
.coin-usdt { background: rgba(16,185,129,.15); color: #6ee7b7; }
.coin-trx { background: rgba(239,68,68,.15); color: #fca5a5; }
.coin-eth { background: rgba(99,102,241,.15); color: #a5b4fc; }

.admin-form-label {
    display: block;
    font-size: 0.78rem;
    color: var(--adm-muted);
    margin-bottom: 0.35rem;
}

.admin-form-control,
.admin-form-select {
    width: 100%;
    background: #0f172a;
    border: 1px solid var(--adm-border);
    color: var(--adm-text);
    border-radius: 10px;
    padding: 0.65rem 0.75rem;
    font-size: 0.88rem;
    margin-bottom: 0.85rem;
}

.admin-form-control:focus,
.admin-form-select:focus {
    outline: none;
    border-color: rgba(16, 185, 129, 0.5);
    box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.12);
}

.admin-alert {
    padding: 0.85rem 1rem;
    border-radius: 10px;
    margin-bottom: 1rem;
    font-size: 0.88rem;
}

.admin-alert-success {
    background: rgba(16, 185, 129, 0.12);
    border: 1px solid rgba(16, 185, 129, 0.35);
    color: #a7f3d0;
}

.admin-alert-danger {
    background: rgba(239, 68, 68, 0.12);
    border: 1px solid rgba(239, 68, 68, 0.35);
    color: #fecaca;
}

.admin-alert-info {
    background: rgba(59, 130, 246, 0.12);
    border: 1px solid rgba(59, 130, 246, 0.35);
    color: #bfdbfe;
}

.admin-chart {
    display: flex;
    align-items: flex-end;
    gap: 0.5rem;
    height: 140px;
    padding-top: 0.5rem;
}

.admin-chart-bar {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.35rem;
}

.admin-chart-bar .bar {
    width: 100%;
    max-width: 36px;
    background: linear-gradient(180deg, var(--adm-accent), rgba(16, 185, 129, 0.35));
    border-radius: 8px 8px 4px 4px;
    min-height: 4px;
}

.admin-chart-bar span {
    font-size: 0.68rem;
    color: var(--adm-muted);
}

.wallet-item,
.merchant-item {
    padding: 0.9rem 0;
    border-bottom: 1px solid var(--adm-border);
}

.wallet-item:last-child,
.merchant-item:last-child {
    border-bottom: none;
}

.mono {
    font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
    font-size: 0.78rem;
    word-break: break-all;
}

.copy-row {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.copy-row code {
    flex: 1;
    background: #0f172a;
    padding: 0.35rem 0.5rem;
    border-radius: 8px;
    font-size: 0.75rem;
}

.admin-filters {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
    margin-bottom: 1rem;
}

.admin-filters .admin-form-control,
.admin-filters .admin-form-select {
    margin-bottom: 0;
    width: auto;
    min-width: 160px;
}

.admin-login-page {
    min-height: 100vh;
    display: grid;
    place-items: center;
    padding: 1.5rem;
}

.admin-login-card {
    width: 100%;
    max-width: 420px;
    background: var(--adm-card);
    border: 1px solid var(--adm-border);
    border-radius: 18px;
    padding: 2rem;
    box-shadow: var(--adm-shadow);
}

.admin-login-card h1 {
    margin: 0 0 0.35rem;
    font-size: 1.5rem;
}

.admin-login-card p {
    color: var(--adm-muted);
    margin: 0 0 1.5rem;
    font-size: 0.9rem;
}

.admin-empty {
    text-align: center;
    color: var(--adm-muted);
    padding: 2rem 1rem;
    font-size: 0.9rem;
}

@media (max-width: 992px) {
    .admin-shell {
        grid-template-columns: 1fr;
    }

    .admin-sidebar {
        position: relative;
        height: auto;
    }

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

@media (max-width: 768px) {
    .admin-main {
        padding: 1rem;
    }

    .admin-topbar {
        flex-direction: column;
        align-items: flex-start;
    }
}