:root {
    --bg: #f5f6f8;
    --panel: #ffffff;
    --border: #e3e6eb;
    --text: #1b2230;
    --text-muted: #6b7280;
    --accent: #4f46e5;
    --accent-soft: #eef2ff;
    --good: #059669;
    --bad: #dc2626;
    --radius: 10px;
    font-size: 15px;
}

* { box-sizing: border-box; }

body {
    margin: 0;
    background: var(--bg);
    color: var(--text);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

.app {
    display: flex;
    min-height: 100vh;
}

.sidebar {
    width: 220px;
    flex-shrink: 0;
    background: var(--panel);
    border-right: 1px solid var(--border);
    padding: 20px 14px;
}

.sidebar h1 {
    font-size: 16px;
    margin: 0 0 4px;
    padding: 0 10px;
}

.sidebar .subtitle {
    font-size: 12px;
    color: var(--text-muted);
    padding: 0 10px;
    margin-bottom: 20px;
    word-break: break-all;
}

.nav-link {
    display: block;
    padding: 9px 12px;
    border-radius: 8px;
    color: var(--text);
    font-size: 14px;
    margin-bottom: 2px;
}

.nav-link:hover { background: var(--accent-soft); text-decoration: none; }
.nav-link.active { background: var(--accent); color: #fff; }

.sidebar-footer {
    margin-top: 24px;
    padding-top: 14px;
    border-top: 1px solid var(--border);
    font-size: 13px;
}

.main {
    flex: 1;
    padding: 24px 32px;
    max-width: 1200px;
}

.topbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 22px;
}

.topbar h2 { margin: 0; font-size: 20px; }

.range-form {
    display: flex;
    gap: 8px;
    align-items: center;
    flex-wrap: wrap;
}

.range-form select, .range-form input[type=date], .range-form select.site-select {
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 7px 10px;
    font-size: 13px;
    background: #fff;
    color: var(--text);
}

.range-form button {
    border: 1px solid var(--border);
    background: #fff;
    border-radius: 8px;
    padding: 7px 12px;
    font-size: 13px;
    cursor: pointer;
}
.range-form button:hover { background: var(--accent-soft); }

.stat-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 14px;
    margin-bottom: 24px;
}

.stat-card {
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 16px 18px;
}

.stat-card .label {
    font-size: 12px;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: .04em;
}

.stat-card .value {
    font-size: 26px;
    font-weight: 600;
    margin-top: 6px;
}

.panel {
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 18px 20px;
    margin-bottom: 20px;
}

.panel h3 {
    margin: 0 0 14px;
    font-size: 15px;
}

.panel-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 20px;
}

table {
    width: 100%;
    border-collapse: collapse;
    font-size: 13.5px;
}

th, td {
    text-align: left;
    padding: 8px 10px;
    border-bottom: 1px solid var(--border);
}

th { color: var(--text-muted); font-weight: 600; font-size: 12px; text-transform: uppercase; letter-spacing: .03em; }

tr:last-child td { border-bottom: none; }

.bar {
    display: inline-block;
    height: 8px;
    background: var(--accent);
    border-radius: 4px;
    vertical-align: middle;
}

.badge {
    display: inline-block;
    padding: 2px 8px;
    border-radius: 999px;
    background: var(--accent-soft);
    color: var(--accent);
    font-size: 11px;
    font-weight: 600;
}

.badge.live {
    background: #ecfdf5;
    color: var(--good);
}

.filter-form {
    display: flex;
    gap: 10px;
    align-items: center;
    flex-wrap: wrap;
}

.filter-form select, .filter-form input[type=number] {
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 7px 10px;
    font-size: 13px;
    background: #fff;
    color: var(--text);
}

.filter-form input[type=number] {
    width: 110px;
}

.filter-form .checkbox-group {
    display: flex;
    gap: 14px;
    align-items: center;
    font-size: 13px;
}

.filter-form .checkbox-group label {
    display: flex;
    align-items: center;
    gap: 5px;
    cursor: pointer;
}

.filter-form button {
    border: 1px solid var(--border);
    background: #fff;
    border-radius: 8px;
    padding: 7px 12px;
    font-size: 13px;
    cursor: pointer;
}

.filter-form button:hover { background: var(--accent-soft); }

.filter-form .clear-link {
    font-size: 13px;
    color: var(--text-muted);
}

.pagination {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 14px;
    font-size: 13px;
    color: var(--text-muted);
}

.pagination .disabled {
    color: var(--text-muted);
    opacity: .5;
}

.empty-state {
    color: var(--text-muted);
    font-size: 13.5px;
    padding: 30px 0;
    text-align: center;
}

.login-wrap {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg);
}

.login-box {
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 32px;
    width: 320px;
}

.login-box h1 { font-size: 18px; margin: 0 0 18px; }

.login-box label {
    display: block;
    font-size: 13px;
    margin-bottom: 6px;
    color: var(--text-muted);
}

.login-box input {
    width: 100%;
    padding: 9px 10px;
    border: 1px solid var(--border);
    border-radius: 8px;
    margin-bottom: 14px;
    font-size: 14px;
}

.login-box button {
    width: 100%;
    padding: 10px;
    border: none;
    border-radius: 8px;
    background: var(--accent);
    color: #fff;
    font-size: 14px;
    cursor: pointer;
}

.error-banner {
    background: #fef2f2;
    color: var(--bad);
    border: 1px solid #fecaca;
    border-radius: 8px;
    padding: 10px 12px;
    font-size: 13px;
    margin-bottom: 14px;
}

.text-muted { color: var(--text-muted); }
.mono { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: 12.5px; }

@media (max-width: 780px) {
    .app { flex-direction: column; }
    .sidebar { width: 100%; border-right: none; border-bottom: 1px solid var(--border); }
    .main { padding: 18px; }
}