:root{
  --bg:#f5f6f8; --surface:#ffffff; --surface-2:#fbfbfd; --line:#e7e8ee;
  --ink:#1c2030; --muted:#6b7186; --faint:#9aa0b2;
  --brand:#5b5bd6; --brand-ink:#ffffff;
  --good:#16a34a; --good-bg:#e9f7ee; --warn:#d97706; --neg:#dc2626; --neg-bg:#fdecec;
  --side:#191b28; --side-ink:#c9ccd8; --side-on:#ffffff;
  --radius:14px; --shadow:0 1px 2px rgba(20,22,38,.06),0 6px 20px rgba(20,22,38,.05);
  --meta:#2563eb; --google:#0f9d58;
}
@media (prefers-color-scheme:dark){
  :root{
    --bg:#0e0f16; --surface:#171926; --surface-2:#141522; --line:#252838;
    --ink:#e9eaf2; --muted:#9aa0b6; --faint:#6b7089;
    --brand:#7c7cf0; --good:#3ec17e; --good-bg:#12291d; --warn:#e0a33a; --neg:#f0616a; --neg-bg:#2a1618;
    --side:#0a0b12; --side-ink:#9aa0b6; --side-on:#ffffff;
    --shadow:0 1px 2px rgba(0,0,0,.3),0 8px 28px rgba(0,0,0,.35);
  }
}
*{box-sizing:border-box}
body{margin:0;font:15px/1.5 system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;background:var(--bg);color:var(--ink);-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
h1{font-size:20px;margin:0;letter-spacing:-.01em}

.app{display:grid;grid-template-columns:230px 1fr;min-height:100vh}
.sidebar{background:var(--side);color:var(--side-ink);padding:22px 16px;display:flex;flex-direction:column;gap:22px;position:sticky;top:0;height:100vh}
.brand{display:flex;align-items:center;gap:9px;font-weight:700;color:var(--side-on);font-size:16px;letter-spacing:-.01em}
.brand .dot{width:10px;height:10px;border-radius:50%;background:var(--brand);box-shadow:0 0 0 4px color-mix(in srgb,var(--brand) 30%,transparent)}
.brand.big{font-size:20px}
.client-pill{font-size:12.5px;color:var(--side-on);background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.08);padding:8px 11px;border-radius:9px;font-weight:600}
.sidebar nav{display:flex;flex-direction:column;gap:3px}
.sidebar nav a{display:flex;align-items:center;justify-content:space-between;padding:9px 11px;border-radius:9px;color:var(--side-ink);font-weight:500;font-size:14px}
.sidebar nav a:hover{background:rgba(255,255,255,.05);color:var(--side-on)}
.sidebar nav a.on{background:var(--brand);color:#fff}
.badge{background:var(--neg);color:#fff;border-radius:20px;padding:1px 8px;font-size:11.5px;font-weight:700}
.sidefoot{margin-top:auto;font-size:12.5px;color:var(--faint);line-height:1.7}
.sidefoot a{color:var(--side-ink);text-decoration:underline}

main{padding:26px 30px;max-width:1080px;width:100%}
.topbar{display:flex;align-items:baseline;justify-content:space-between;margin-bottom:20px;gap:12px;flex-wrap:wrap}
.range{color:var(--muted);font-size:13px}

.tiles{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-bottom:18px}
.tile{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:16px 18px;box-shadow:var(--shadow)}
.tile-label{color:var(--muted);font-size:12.5px;font-weight:600;text-transform:uppercase;letter-spacing:.04em}
.tile-value{font-size:26px;font-weight:700;margin:6px 0 2px;letter-spacing:-.02em}
.tile-sub{color:var(--faint);font-size:12.5px}
.tile.good .tile-value{color:var(--good)} .tile.warn .tile-value{color:var(--warn)}

.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);margin-bottom:18px;overflow:hidden}
.card-h{padding:14px 18px;border-bottom:1px solid var(--line);font-weight:650;font-size:14px}
.chart{width:100%;height:auto;display:block;padding:14px 10px 0}
.axis{stroke:var(--line)} .xlab{fill:var(--faint);font-size:10px;text-anchor:middle}
.ln-rev{fill:none;stroke:var(--good);stroke-width:2.5} .ln-spend{fill:none;stroke:var(--brand);stroke-width:2.5}
.ar-rev{fill:color-mix(in srgb,var(--good) 12%,transparent)} .ar-spend{fill:color-mix(in srgb,var(--brand) 10%,transparent)}
.legend{display:flex;gap:16px;padding:6px 18px 14px;font-size:12.5px;color:var(--muted)}
.legend .k::before{content:"";display:inline-block;width:10px;height:10px;border-radius:3px;margin-right:6px;vertical-align:middle}
.legend .rev::before{background:var(--good)} .legend .spend::before{background:var(--brand)}

.grid{width:100%;border-collapse:collapse;font-size:14px}
.grid th{text-align:left;padding:10px 18px;color:var(--muted);font-size:12px;text-transform:uppercase;letter-spacing:.03em;border-bottom:1px solid var(--line)}
.grid td{padding:11px 18px;border-bottom:1px solid var(--line)}
.grid tr:last-child td{border-bottom:none}
.pos{color:var(--good);font-weight:600} .neg{color:var(--neg);font-weight:600}
.plat{font-size:12px;font-weight:700;padding:2px 8px;border-radius:6px;color:#fff}
.plat.meta{background:var(--meta)} .plat.google{background:var(--google)}

.banner-note{background:var(--good-bg);border:1px solid color-mix(in srgb,var(--good) 30%,transparent);color:var(--ink);padding:12px 16px;border-radius:12px;margin-bottom:18px;font-size:14px}
.banner-note a{color:var(--good);font-weight:600}

.proposals{display:flex;flex-direction:column;gap:14px}
.prop{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:16px 18px}
.prop.approved{opacity:.72} .prop.rejected{opacity:.55}
.prop-h{display:flex;align-items:center;gap:10px;margin-bottom:8px;flex-wrap:wrap}
.tag{font-size:12px;font-weight:700;padding:2px 9px;border-radius:6px;background:var(--line);text-transform:capitalize}
.tag.pos{background:var(--good-bg);color:var(--good)} .tag.neg{background:var(--neg-bg);color:var(--neg)} .tag.warn{background:#fdf1df;color:var(--warn)}
.conf{margin-left:auto;color:var(--faint);font-size:12.5px}
.prop-target{font-weight:600;margin-bottom:6px}
.prop-reason{color:var(--muted);font-size:13.5px;margin:0 0 12px}
.prop-actions{display:flex;gap:8px}
.prop-actions button{border:none;border-radius:9px;padding:8px 18px;font-weight:600;cursor:pointer;font-size:13.5px}
button.ok{background:var(--good);color:#fff} button.no{background:var(--neg-bg);color:var(--neg)}
.prop-decided{font-weight:600;font-size:13.5px}
.prop-decided.approved{color:var(--good)} .prop-decided.rejected{color:var(--neg)}

.form-row{display:flex;gap:16px;align-items:flex-end;flex-wrap:wrap;padding:16px 18px}
label{display:flex;flex-direction:column;gap:5px;font-size:12.5px;color:var(--muted);font-weight:600}
input{font:inherit;padding:9px 11px;border:1px solid var(--line);border-radius:9px;background:var(--surface-2);color:var(--ink)}
input:focus{outline:2px solid color-mix(in srgb,var(--brand) 45%,transparent);border-color:var(--brand)}
.form-row button{background:var(--brand);color:#fff;border:none;border-radius:9px;padding:10px 20px;font-weight:600;cursor:pointer}
.hint{color:var(--faint);font-size:12.5px;padding:0 18px 16px;margin:0}
.saved{background:var(--good-bg);color:var(--good);padding:9px 14px;border-radius:10px;font-weight:600;margin-bottom:14px;display:inline-block}
.empty{color:var(--muted);background:var(--surface);border:1px dashed var(--line);border-radius:var(--radius);padding:40px;text-align:center}

.gallery{display:grid;grid-template-columns:repeat(auto-fill,minmax(210px,1fr));gap:16px}
.banner{margin:0;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow)}
.banner-art{aspect-ratio:1;background:linear-gradient(135deg,var(--accent),color-mix(in srgb,var(--accent) 55%,#000));display:flex;align-items:flex-end;padding:14px}
.banner-price{background:#fff;color:#111;font-weight:800;padding:4px 10px;border-radius:8px;font-size:14px}
.banner figcaption{padding:11px 13px;font-size:13.5px;font-weight:600;display:flex;flex-direction:column;gap:2px}
.muted{color:var(--muted);font-weight:400;font-size:12.5px}

/* login */
.login-body{display:grid;place-items:center;min-height:100vh}
.login-card{background:var(--surface);border:1px solid var(--line);border-radius:18px;box-shadow:var(--shadow);padding:34px 30px;width:min(380px,92vw);display:flex;flex-direction:column;gap:14px}
.login-card .brand{margin-bottom:2px}
.login-card p.muted{margin:-6px 0 6px}
.login-card button{background:var(--brand);color:#fff;border:none;border-radius:10px;padding:12px;font-weight:700;cursor:pointer;font-size:15px;margin-top:6px}
.error{background:var(--neg-bg);color:var(--neg);padding:9px 12px;border-radius:9px;font-size:13.5px}

@media (max-width:820px){
  .app{grid-template-columns:1fr}
  .sidebar{position:static;height:auto;flex-direction:row;align-items:center;flex-wrap:wrap;gap:12px}
  .sidebar nav{flex-direction:row;flex-wrap:wrap} .sidefoot{margin:0}
  .tiles{grid-template-columns:repeat(2,1fr)}
  main{padding:20px}
}