:root {
  --bg: #f6f6f8;
  --panel: #ffffff;
  --panel-2: #f1f1f4;
  --text: #15151a;
  --muted: #6b6b78;
  --line: #e4e4ea;
  --accent: #5b3df5;
  --accent-ink: #ffffff;
  --accent-soft: #ece8ff;
  --ok: #138a4c;
  --ok-soft: #e3f6ec;
  --warn: #a86400;
  --warn-soft: #fff2dc;
  --err: #c62f3a;
  --err-soft: #fde8ea;
  --tiktok: #111111;
  --instagram: #d62976;
  --youtube: #e62117;
  --snapchat: #e8c800;
  --radius: 14px;
  --shadow: 0 1px 2px rgba(20, 20, 30, .05), 0 4px 16px rgba(20, 20, 30, .04);
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0e0e12;
    --panel: #17171d;
    --panel-2: #1f1f27;
    --text: #f0f0f4;
    --muted: #9a9aa8;
    --line: #2a2a34;
    --accent: #8b74ff;
    --accent-ink: #0e0e12;
    --accent-soft: #241f45;
    --ok: #4fd08a;
    --ok-soft: #14301f;
    --warn: #f0b44c;
    --warn-soft: #33270f;
    --err: #ff6b74;
    --err-soft: #3a1a1e;
    --tiktok: #e8e8e8;
    --shadow: none;
  }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0; background: var(--bg); color: var(--text);
  font: 15px/1.5 -apple-system, BlinkMacSystemFont, "Inter", "Segoe UI", Roboto, sans-serif;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
h1 { font-size: 26px; margin: 0 0 4px; letter-spacing: -.02em; }
h2 { font-size: 17px; margin: 0 0 14px; letter-spacing: -.01em; }
h3 { font-size: 15px; margin: 0 0 8px; }
p { margin: 0 0 10px; }
.muted { color: var(--muted); }
.small { font-size: 13px; }
.num { font-variant-numeric: tabular-nums; }

/* Layout */
.top {
  position: sticky; top: 0; z-index: 10; background: color-mix(in srgb, var(--bg) 85%, transparent);
  backdrop-filter: blur(10px); border-bottom: 1px solid var(--line);
}
.top-in { max-width: 1180px; margin: 0 auto; padding: 0 16px; display: flex; align-items: center; gap: 18px; height: 60px; }
.brand { font-weight: 800; letter-spacing: -.03em; font-size: 18px; color: var(--text); display: flex; align-items: center; gap: 8px; }
.brand:hover { text-decoration: none; }
.brand i { width: 26px; height: 26px; border-radius: 8px; background: var(--accent); display: inline-grid; place-items: center; color: var(--accent-ink); font-style: normal; font-size: 14px; }
.nav { display: flex; gap: 4px; flex: 1; overflow-x: auto; scrollbar-width: none; }
.nav a { color: var(--muted); padding: 7px 12px; border-radius: 9px; white-space: nowrap; font-weight: 500; font-size: 14px; }
.nav a:hover { color: var(--text); text-decoration: none; background: var(--panel-2); }
.nav a.on { color: var(--text); background: var(--panel); box-shadow: var(--shadow); border: 1px solid var(--line); }
.badge { display: inline-block; min-width: 18px; padding: 0 6px; border-radius: 99px; background: var(--err); color: #fff; font-size: 11px; font-weight: 700; line-height: 18px; text-align: center; margin-left: 4px; }
.me { display: flex; align-items: center; gap: 10px; font-size: 13px; color: var(--muted); white-space: nowrap; }
main { max-width: 1180px; margin: 0 auto; padding: 28px 16px 80px; }
.head { display: flex; align-items: flex-end; justify-content: space-between; gap: 16px; flex-wrap: wrap; margin-bottom: 22px; }

.grid { display: grid; gap: 16px; }
.g4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.g3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.g2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.span2 { grid-column: span 2; }
@media (max-width: 900px) { .g4 { grid-template-columns: repeat(2, minmax(0, 1fr)); } .g3, .g2 { grid-template-columns: 1fr; } .span2 { grid-column: auto; } }
@media (max-width: 520px) { .me span { display: none; } h1 { font-size: 22px; } }

.card { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); padding: 18px; box-shadow: var(--shadow); min-width: 0; }
.card + .card, .stack > * + * { margin-top: 16px; }
.grid > .card + .card { margin-top: 0; }
.stat .label { color: var(--muted); font-size: 13px; font-weight: 500; }
.stat .value { font-size: 28px; font-weight: 750; letter-spacing: -.03em; margin-top: 2px; font-variant-numeric: tabular-nums; }
.stat .sub { color: var(--muted); font-size: 12px; margin-top: 2px; }
.stat.hl { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); }
.stat.hl .label, .stat.hl .sub { color: inherit; opacity: .8; }

/* Tables */
.tbl-wrap { overflow-x: auto; margin: 0 -18px; padding: 0 18px; }
table { width: 100%; border-collapse: collapse; font-size: 14px; }
th { text-align: left; font-weight: 600; color: var(--muted); font-size: 12px; text-transform: uppercase; letter-spacing: .04em; padding: 8px 10px; border-bottom: 1px solid var(--line); white-space: nowrap; }
td { padding: 10px; border-bottom: 1px solid var(--line); vertical-align: middle; }
tr:last-child td { border-bottom: 0; }
td.r, th.r { text-align: right; }
tr.dim td { opacity: .5; }
.vid { display: flex; align-items: center; gap: 10px; min-width: 220px; }
.vid img, .vid .ph { width: 40px; height: 56px; object-fit: cover; border-radius: 6px; background: var(--panel-2); flex: none; }
.vid .cap { overflow: hidden; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; font-size: 13px; max-width: 360px; }

/* Pills */
.pill { display: inline-flex; align-items: center; gap: 5px; padding: 2px 9px; border-radius: 99px; font-size: 12px; font-weight: 600; white-space: nowrap; background: var(--panel-2); color: var(--muted); }
.pill.ok { background: var(--ok-soft); color: var(--ok); }
.pill.warn { background: var(--warn-soft); color: var(--warn); }
.pill.err { background: var(--err-soft); color: var(--err); }
.pill.acc { background: var(--accent-soft); color: var(--accent); }
.pf { display: inline-flex; align-items: center; gap: 6px; font-weight: 600; font-size: 13px; white-space: nowrap; }
.pf::before { content: ""; width: 9px; height: 9px; border-radius: 3px; background: var(--c); }
.pf.tiktok { --c: var(--tiktok); } .pf.instagram { --c: var(--instagram); } .pf.youtube { --c: var(--youtube); } .pf.snapchat { --c: var(--snapchat); }

/* Forms */
label { display: block; font-size: 13px; font-weight: 600; margin-bottom: 5px; }
input, select, textarea {
  width: 100%; font: inherit; color: var(--text); background: var(--panel); border: 1px solid var(--line);
  border-radius: 10px; padding: 9px 12px; outline: none;
}
input:focus, select:focus, textarea:focus { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); }
.field { margin-bottom: 14px; }
.row { display: flex; gap: 10px; align-items: flex-end; flex-wrap: wrap; }
.row > .grow { flex: 1; min-width: 160px; }
.inline { display: inline-flex; gap: 6px; align-items: center; margin: 0; }
.inline input { width: 110px; padding: 5px 8px; font-size: 13px; }
.inline select { width: auto; padding: 5px 8px; font-size: 13px; }
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px; font: inherit; font-weight: 600; font-size: 14px;
  padding: 9px 16px; border-radius: 10px; border: 1px solid transparent; background: var(--accent); color: var(--accent-ink);
  cursor: pointer; white-space: nowrap; text-decoration: none !important;
}
.btn:hover { filter: brightness(1.07); }
.btn.ghost { background: var(--panel); color: var(--text); border-color: var(--line); }
.btn.ghost:hover { background: var(--panel-2); }
.btn.sm { padding: 5px 10px; font-size: 13px; border-radius: 8px; }
.btn.ok { background: var(--ok); color: #fff; }
.btn.danger { background: transparent; color: var(--err); border-color: var(--line); }
.btn.block { width: 100%; }
.actions { display: flex; gap: 6px; flex-wrap: wrap; justify-content: flex-end; }

/* Flash */
.flash { padding: 12px 16px; border-radius: 12px; margin-bottom: 20px; font-weight: 500; }
.flash.ok { background: var(--ok-soft); color: var(--ok); }
.flash.err { background: var(--err-soft); color: var(--err); }

/* Auth */
.auth { min-height: 100vh; display: grid; place-items: center; padding: 24px 16px; }
.auth .card { width: 100%; max-width: 400px; padding: 28px; }
.auth .brand { justify-content: center; margin-bottom: 18px; font-size: 22px; }
.auth .lead { text-align: center; color: var(--muted); margin-bottom: 22px; }
.rates { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; margin: 0 0 22px; }
.rates div { background: var(--panel-2); border-radius: 10px; padding: 8px 10px; font-size: 13px; }
.rates b { display: block; font-size: 15px; }

/* Chart */
.chart { width: 100%; height: 180px; display: block; }
.chart .bar { fill: var(--accent); }
.chart .bar:hover { fill: color-mix(in srgb, var(--accent) 70%, var(--text)); }
.chart .axis { fill: var(--muted); font-size: 10px; }
.chart .gl { stroke: var(--line); stroke-dasharray: 2 3; }

/* Platform split */
.split { display: flex; height: 10px; border-radius: 99px; overflow: hidden; background: var(--panel-2); margin: 4px 0 14px; }
.split span { background: var(--c); }
.legend { display: grid; gap: 8px; }
.legend div { display: flex; justify-content: space-between; gap: 10px; font-size: 14px; }

.empty { text-align: center; padding: 30px 10px; color: var(--muted); }
.steps { counter-reset: s; list-style: none; padding: 0; margin: 0; display: grid; gap: 10px; }
.steps li { counter-increment: s; display: flex; gap: 12px; align-items: flex-start; }
.steps li::before { content: counter(s); flex: none; width: 24px; height: 24px; border-radius: 99px; background: var(--accent-soft); color: var(--accent); font-weight: 700; font-size: 12px; display: grid; place-items: center; }
.steps li.done::before { content: "✓"; background: var(--ok-soft); color: var(--ok); }
details summary { cursor: pointer; font-weight: 600; }
code { background: var(--panel-2); padding: 1px 6px; border-radius: 6px; font-size: 13px; }
pre { background: var(--panel-2); padding: 12px; border-radius: 10px; overflow-x: auto; font-size: 12px; white-space: pre-wrap; }

@media (max-width: 720px) {
  .top-in { flex-wrap: wrap; height: auto; padding-top: 10px; gap: 6px 12px; }
  .brand { flex: 1; }
  .nav { order: 3; flex-basis: 100%; padding-bottom: 8px; }
  .stat .value { font-size: 22px; }
  main { padding-top: 20px; }
}

/* Campaign guide */
.guide-hero h1 { margin-top: 2px; }
.chips { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 14px; }
.chip { display: inline-flex; align-items: center; gap: 6px; padding: 6px 10px; border-radius: 10px; background: var(--panel-2); font-size: 13px; }
.guide { display: grid; grid-template-columns: 210px minmax(0, 1fr); gap: 16px; margin-top: 16px; align-items: start; }
.toc { position: sticky; top: 76px; display: grid; gap: 2px; }
.toc a { display: flex; gap: 8px; align-items: center; padding: 7px 10px; border-radius: 9px; color: var(--text); font-size: 14px; font-weight: 500; }
.toc a:hover { background: var(--panel); text-decoration: none; }
.guide-body > section, .guide-body > .card { scroll-margin-top: 80px; }
.guide-body > * + * { margin-top: 16px; }
.guide-body h2 { display: flex; align-items: center; gap: 10px; font-size: 19px; }
.ico { width: 34px; height: 34px; border-radius: 10px; background: var(--accent-soft); display: inline-grid; place-items: center; font-size: 17px; flex: none; }
.prose { font-size: 15px; line-height: 1.65; }
.prose h3 { font-size: 15px; margin: 20px 0 6px; }
.prose ul, .prose ol { margin: 0 0 10px; padding-left: 20px; }
.prose li { margin: 3px 0; }
.prose li::marker { color: var(--accent); }
.prose strong { color: var(--text); }
.ex-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(170px, 1fr)); gap: 14px; margin-top: 12px; }
.ex { margin: 0; }
.ex video, .ex iframe, .ex-link { width: 100%; aspect-ratio: 9 / 16; border-radius: 12px; background: #000; border: 0; display: block; object-fit: cover; }
.ex-link { display: grid; place-content: center; text-align: center; gap: 6px; background: var(--panel-2); color: var(--text); font-weight: 600; }
.ex-link span { font-size: 28px; color: var(--accent); }
.ex figcaption { font-size: 13px; margin-top: 6px; font-weight: 500; }
.res-list { display: grid; gap: 8px; }
.res { display: flex; align-items: center; gap: 12px; padding: 12px; border: 1px solid var(--line); border-radius: 12px; color: var(--text); }
.res:hover { background: var(--panel-2); text-decoration: none; }
.res > span:nth-child(2) { flex: 1; display: grid; }
.res-ico { font-size: 20px; }
a.camp { color: var(--text); }
a.camp:hover { text-decoration: none; border-color: var(--accent); }
@media (max-width: 900px) {
  .guide { grid-template-columns: 1fr; }
  .toc { position: static; display: flex; overflow-x: auto; gap: 6px; scrollbar-width: none; }
  .toc > div, .toc > p { display: none; }
  .toc a { white-space: nowrap; background: var(--panel); border: 1px solid var(--line); }
}
.guide-cta { display: flex; align-items: center; gap: 14px; margin-bottom: 16px; color: var(--text); }
.guide-cta:hover { text-decoration: none; border-color: var(--accent); }
.guide-cta > span:nth-child(2) { flex: 1; display: grid; }
.check { display: flex; gap: 10px; align-items: flex-start; font-weight: 400; margin: 6px 0 8px; cursor: pointer; }
.check input { width: auto; margin-top: 4px; }
textarea.mono { font: 13px/1.55 ui-monospace, SFMono-Regular, Menlo, monospace; resize: vertical; }
.res-form { margin-top: 16px; padding-top: 16px; border-top: 1px solid var(--line); }
input[type=file] { padding: 6px; }