:root {
    --bg: #f5f6f8;
    --surface: #ffffff;
    --surface-2: #f0f2f5;
    --border: #e2e5ea;
    --text: #1b1f27;
    --muted: #6b7280;
    --accent: #2563eb;
    --accent-ink: #ffffff;
    --good: #15803d;
    --good-bg: #dcfce7;
    --bad: #b91c1c;
    --bad-bg: #fee2e2;
    --warn-bg: #fef3c7;
    --warn: #92400e;
    --fav: #f59e0b;
    --c-clicks: #2563eb;
    --c-impressions: #7c3aed;
    --c-ctr: #0d9488;
    --c-position: #ea580c;
    --radius: 10px;
    --shadow: 0 1px 2px rgba(16, 24, 40, .06);
}

@media (prefers-color-scheme: dark) {
    :root {
        --bg: #0f1218;
        --surface: #171b23;
        --surface-2: #1f2430;
        --border: #2a303c;
        --text: #e6e8ec;
        --muted: #9aa3b2;
        --accent: #5b8cff;
        --good: #4ade80;
        --good-bg: #12301f;
        --bad: #f87171;
        --bad-bg: #3a1717;
        --warn-bg: #3a2c0d;
        --warn: #fcd34d;
        --c-clicks: #5b8cff;
        --c-impressions: #a78bfa;
        --c-ctr: #2dd4bf;
        --c-position: #fb923c;
        --shadow: none;
    }
}

* { box-sizing: border-box; }

body {
    margin: 0;
    background: var(--bg);
    color: var(--text);
    font: 14px/1.45 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Inter, sans-serif;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
h1 { font-size: 22px; margin: 4px 0; display: flex; align-items: center; gap: 8px; }
h3 { margin: 0 0 10px; font-size: 15px; }
code { background: var(--surface-2); padding: 2px 6px; border-radius: 4px; word-break: break-all; }

.topbar {
    display: flex;
    align-items: center;
    gap: 24px;
    padding: 0 24px;
    height: 56px;
    background: var(--surface);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 10;
}
.brand { font-weight: 700; color: var(--text); font-size: 16px; }
.brand:hover { text-decoration: none; }
.logo { color: var(--accent); }
.topbar nav { display: flex; gap: 4px; flex: 1; }
.topbar nav a, .topbar .user a { color: var(--muted); padding: 6px 10px; border-radius: 6px; }
.topbar nav a.active, .topbar nav a:hover, .topbar .user a.active { background: var(--surface-2); color: var(--text); text-decoration: none; }
.user { display: flex; align-items: center; gap: 8px; }
.user form { margin: 0; }

.container { max-width: 1280px; margin: 0 auto; padding: 24px; }

.page-head { display: flex; justify-content: space-between; align-items: flex-start; gap: 16px; margin-bottom: 16px; flex-wrap: wrap; }
.actions { display: flex; gap: 8px; }
.actions form { margin: 0; }

.card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 16px;
    margin-bottom: 16px;
    box-shadow: var(--shadow);
}
.card.empty { text-align: center; padding: 32px; }
.card.info { background: var(--surface-2); }
.narrow-card { max-width: 420px; }
.auth-card { max-width: 380px; margin: 10vh auto; padding: 28px; }
.auth-card h1 { justify-content: center; margin-bottom: 16px; }

.muted { color: var(--muted); }
.small { font-size: 12px; }
.center { text-align: center; }
.right { text-align: right; }

.btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    border: 1px solid var(--border);
    background: var(--surface);
    color: var(--text);
    padding: 7px 14px;
    border-radius: 8px;
    font: inherit;
    cursor: pointer;
    white-space: nowrap;
}
.btn:hover { background: var(--surface-2); text-decoration: none; }
.btn.primary { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); }
.btn.primary:hover { filter: brightness(1.08); }
.btn.danger { color: var(--bad); }
.btn.small { padding: 4px 10px; font-size: 12px; }
.btn:disabled { opacity: .5; cursor: not-allowed; }
.btn.loading { opacity: .6; pointer-events: none; }
button.link { background: none; border: 0; color: var(--muted); cursor: pointer; font: inherit; padding: 6px 8px; }
button.link:hover { color: var(--text); }

input, select {
    font: inherit;
    color: var(--text);
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 7px 10px;
}
input:focus, select:focus { outline: 2px solid var(--accent); outline-offset: -1px; }
.stack { display: flex; flex-direction: column; gap: 12px; }
.stack label { display: flex; flex-direction: column; gap: 4px; font-size: 13px; color: var(--muted); }
.row-form { display: flex; gap: 8px; flex-wrap: wrap; }
.row-form input[type=email] { flex: 1; min-width: 200px; }
form.inline { display: inline-flex; gap: 6px; align-items: center; margin: 0 0 0 6px; }
.small-input { width: 140px; padding: 4px 8px; font-size: 12px; }
.check { display: inline-flex; align-items: center; gap: 6px; color: var(--muted); cursor: pointer; }

.flash { padding: 10px 14px; border-radius: 8px; margin-bottom: 12px; }
.flash.ok { background: var(--good-bg); color: var(--good); }
.flash.error { background: var(--bad-bg); color: var(--bad); }

.range { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; margin: 0; }
.segmented { display: inline-flex; border: 1px solid var(--border); border-radius: 8px; overflow: hidden; background: var(--surface); }
.segmented a { padding: 7px 12px; color: var(--muted); border-right: 1px solid var(--border); }
.segmented a:last-child { border-right: 0; }
.segmented a.on { background: var(--accent); color: var(--accent-ink); }
.segmented a:hover { text-decoration: none; }

.kpis { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; margin-bottom: 16px; }
.kpi {
    background: var(--surface);
    border: 1px solid var(--border);
    border-top: 3px solid var(--kc, var(--accent));
    border-radius: var(--radius);
    padding: 14px 16px;
    text-align: left;
    font: inherit;
    color: inherit;
    box-shadow: var(--shadow);
}
.kpi.clicks { --kc: var(--c-clicks); }
.kpi.impressions { --kc: var(--c-impressions); }
.kpi.ctr { --kc: var(--c-ctr); }
.kpi.position { --kc: var(--c-position); }
.kpis.selectable .kpi { cursor: pointer; opacity: .55; }
.kpis.selectable .kpi.on { opacity: 1; background: var(--surface); }
.kpi-label { color: var(--muted); font-size: 12px; text-transform: uppercase; letter-spacing: .04em; }
.kpi-value { font-size: 26px; font-weight: 700; margin: 2px 0 4px; font-variant-numeric: tabular-nums; }

.delta { font-size: 12px; font-weight: 600; color: var(--muted); white-space: nowrap; }
.delta.up { color: var(--good); }
.delta.down { color: var(--bad); }

.toolbar { display: flex; gap: 16px; align-items: center; margin-bottom: 10px; flex-wrap: wrap; }
.toolbar input[type=search] { width: 280px; max-width: 100%; }

.table-wrap { padding: 0; overflow-x: auto; }
table.data { width: 100%; border-collapse: collapse; }
table.data th, table.data td { padding: 9px 12px; border-bottom: 1px solid var(--border); text-align: left; vertical-align: middle; }
table.data th { font-size: 12px; color: var(--muted); font-weight: 600; background: var(--surface-2); position: sticky; top: 0; white-space: nowrap; }
table.data tbody tr:hover { background: var(--surface-2); }
table.data tbody tr:last-child td { border-bottom: 0; }
table.data .num { text-align: right; font-variant-numeric: tabular-nums; white-space: nowrap; }
table.data .narrow { width: 36px; }
table.sortable th[data-sort] { cursor: pointer; user-select: none; }
table.sortable th.asc::after { content: " ▲"; }
table.sortable th.desc::after { content: " ▼"; }
tr.inactive { opacity: .5; }
#sites-table:not(.show-inactive) tr.inactive { display: none; }
td.key-cell { max-width: 520px; overflow-wrap: anywhere; }

.tag { display: inline-block; font-size: 11px; padding: 1px 6px; border-radius: 4px; background: var(--surface-2); color: var(--muted); margin-left: 4px; vertical-align: middle; }
.tag.warn { background: var(--warn-bg); color: var(--warn); }
.tag.err { background: var(--bad-bg); color: var(--bad); max-width: 360px; white-space: normal; }
.tag.ok { background: var(--good-bg); color: var(--good); }

.fav { background: none; border: 0; cursor: pointer; font-size: 18px; color: var(--border); padding: 0 4px; line-height: 1; }
.fav.on { color: var(--fav); }
.fav:hover { color: var(--fav); }

.spark-col { width: 130px; }
svg.spark { width: 120px; height: 28px; display: block; }
svg.spark path { fill: none; stroke: var(--c-clicks); stroke-width: 1.5; }
svg.spark path.area { fill: var(--c-clicks); opacity: .12; stroke: none; }

.chart-card { padding: 12px 16px 16px; }
.chart-head { display: flex; justify-content: flex-end; margin-bottom: 6px; }
.chart-box { position: relative; height: 340px; }

.tabs { display: flex; gap: 4px; margin-bottom: 12px; align-items: center; flex-wrap: wrap; }
.tabs button { background: none; border: 0; padding: 7px 12px; border-radius: 6px; cursor: pointer; color: var(--muted); font: inherit; }
.tabs button.on { background: var(--surface-2); color: var(--text); font-weight: 600; }
.tabs input { margin-left: auto; width: 220px; }
#breakdown-table { margin-bottom: 8px; }

@media (max-width: 860px) {
    .kpis { grid-template-columns: repeat(2, 1fr); }
    .topbar { padding: 0 16px; gap: 12px; overflow-x: auto; }
    .container { padding: 16px; }
    .spark-col { display: none; }
}