:root {
  --bg: #f4f6fa; --card: #ffffff; --text: #1b2433; --muted: #5d6b82; --border: #d5dbe6;
  --brand: #0a5cab; --brand-text: #ffffff; --heading: #0a3d73;
  --danger: #c62828; --danger-bg: #fdecec; --ok: #1b7f3b; --input-bg: #ffffff;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0f1520; --card: #182131; --text: #e6ebf3; --muted: #9aa8bf; --border: #2c3a52;
    --brand: #3b8be0; --brand-text: #08121f; --heading: #8fc0f5;
    --danger: #ff7b7b; --danger-bg: #3a1c20; --ok: #5fd08a; --input-bg: #111a29;
  }
}
:root[data-theme="dark"] {
  --bg: #0f1520; --card: #182131; --text: #e6ebf3; --muted: #9aa8bf; --border: #2c3a52;
  --brand: #3b8be0; --brand-text: #08121f; --heading: #8fc0f5;
  --danger: #ff7b7b; --danger-bg: #3a1c20; --ok: #5fd08a; --input-bg: #111a29;
}
* { box-sizing: border-box; }
body { margin: 0; font-family: system-ui, -apple-system, "Sarabun", "Noto Sans Thai", sans-serif;
  background: var(--bg); color: var(--text); font-size: 16px; line-height: 1.45; }
header.top { display: flex; align-items: center; gap: 12px; padding: 10px 16px; background: var(--card);
  border-bottom: 1px solid var(--border); }
header.top img { height: 32px; border-radius: 4px; }
header.top h1 { font-size: 17px; margin: 0; color: var(--heading); flex: 1; }
.iconbtn { background: none; border: 1px solid var(--border); color: var(--text); border-radius: 8px;
  padding: 6px 10px; cursor: pointer; font-size: 14px; }
main { max-width: 440px; margin: 0 auto; padding: 20px 16px 60px; }
main.wide { max-width: 1200px; }
.card { background: var(--card); border: 1px solid var(--border); border-radius: 14px; padding: 20px; }
.card h2 { margin: 0 0 14px; color: var(--heading); font-size: 20px; }
.field { display: block; margin-bottom: 14px; padding: 8px; border: 1px solid transparent; border-radius: 10px; }
.field label { display: block; font-weight: 600; font-size: 14px; margin-bottom: 4px; }
.field input, .field select, .field textarea { width: 100%; padding: 11px 12px; font-size: 16px;
  border: 1px solid var(--border); border-radius: 8px; background: var(--input-bg); color: var(--text); }
.field--invalid { border-color: var(--danger); background: var(--danger-bg); }
.field--invalid label { color: var(--danger); }
.err { color: var(--danger); font-size: 13px; min-height: 1em; margin-top: 4px; }
.btn { width: 100%; padding: 13px; font-size: 16px; font-weight: 600; border: 0; border-radius: 10px;
  background: var(--brand); color: var(--brand-text); cursor: pointer; }
.btn[disabled] { opacity: .6; cursor: default; }
.btn.secondary { background: none; color: var(--brand); border: 1px solid var(--brand); }
.note { color: var(--muted); font-size: 13px; margin: 8px 0 0; }
.banner { background: var(--brand); color: var(--brand-text); padding: 8px 16px; text-align: center; font-size: 14px; }
.banner button { margin-left: 10px; }
footer.ver { text-align: center; color: var(--muted); font-size: 12px; padding: 12px; }
[hidden] { display: none !important; }
.linkbtn { background: none; border: 0; color: var(--brand); font-size: 14px; cursor: pointer; padding: 8px 2px; text-decoration: underline; }
.remember { display: flex; align-items: center; gap: 8px; font-size: 14px; margin: 2px 0 8px; }
.remember input { width: auto; }
.ok-note { color: var(--ok); font-size: 14px; }
.badge { display: inline-block; min-width: 18px; padding: 0 6px; margin-left: 6px; border-radius: 999px; background: var(--danger); color: #fff; font-size: 12px; font-weight: 700; line-height: 18px; text-align: center; }
.adminzone { max-width: 440px; margin: 18px auto 0; text-align: center; font-size: 14px; color: var(--muted); padding: 14px; border-top: 1px solid var(--border); }
.adminzone a { color: var(--brand); font-weight: 600; white-space: nowrap; }

/* ---- clip contest additions ---- */
.pill { display: inline-block; padding: 2px 9px; border-radius: 999px; font-size: 12px; font-weight: 600; border: 1px solid var(--border); white-space: nowrap; }
.pill.ok { color: var(--ok); border-color: var(--ok); } .pill.no { color: var(--danger); border-color: var(--danger); }
.pill.wait { color: var(--muted); } .pill.info { color: var(--brand); border-color: var(--brand); }
.plat { display: inline-flex; align-items: center; justify-content: center; min-width: 22px; height: 22px; padding: 0 6px; border-radius: 6px;
  font-size: 11px; font-weight: 800; color: #fff; letter-spacing: .02em; }
.plat.youtube { background: #e62117; } .plat.tiktok { background: #111; box-shadow: inset 0 0 0 1px #444; }
.plat.instagram { background: linear-gradient(45deg, #f58529, #dd2a7b, #8134af); } .plat.facebook { background: #1877f2; }
.embed { position: relative; width: 100%; max-width: 340px; aspect-ratio: 9 / 16; margin: 0 auto; border-radius: 12px; overflow: hidden; background: #000; }
.embed iframe { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; }
.embed.wide { aspect-ratio: 16 / 9; max-width: 560px; }
.openlink { display: block; text-align: center; font-size: 13px; margin-top: 6px; color: var(--brand); }
.muted { color: var(--muted); }
.toast { position: fixed; bottom: 20px; left: 50%; transform: translateX(-50%); background: #1b2433; color: #fff;
  padding: 10px 18px; border-radius: 10px; font-size: 14px; z-index: 80; max-width: 92vw; }
textarea { font-family: inherit; resize: vertical; }
.spark { display: block; width: 100%; height: 36px; }
.spark path { fill: none; stroke: var(--brand); stroke-width: 2; }
.spark circle { fill: var(--brand); }
a { color: var(--brand); }