/* CheckUS Release Notes — shared chrome (app-brand: violet + Pretendard)
   릴리즈노트 페이지/허브 공통 스타일. 페이지별 화면 복제(.calc/.inv 등)는 각 페이지 inline. */

:root{
  --v:#7c3aed; --v-deep:#5b21b6; --v-soft:#ede9fe; --v-line:#ddd6fe; --v-bg:#f5f3ff;
  --blue:#0284c7; --blue-soft:#e0f2fe; --blue-line:#bae6fd; --blue-deep:#075985;
  --amber:#d97706; --amber-soft:#fef3c7; --amber-line:#fde68a; --amber-deep:#92400e;
  --green:#16a34a; --green-soft:#ecfdf5; --green-line:#a7f3d0; --green-deep:#065f46;
  --red:#dc2626; --red-soft:#fef2f2; --red-line:#fecaca;
  --ink:#18181b; --z700:#3f3f46; --z500:#71717a; --z400:#a1a1aa; --z300:#d4d4d8; --z200:#e4e4e7; --z100:#f4f4f5; --z50:#fafafa;
  --bg:#ececed;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:'Pretendard',sans-serif;background:var(--bg);color:var(--ink);line-height:1.7;
  background-image:radial-gradient(circle at 12% -8%, #efeafc 0, transparent 42%),radial-gradient(circle at 92% 0%, #e6f4fb 0, transparent 38%);}
.wrap{max-width:880px;margin:0 auto;padding:0 18px 90px}

/* ===== Hero ===== */
.hero{padding:46px 0 22px}
.eyebrow{display:inline-flex;align-items:center;gap:7px;font-size:12.5px;font-weight:700;color:var(--v-deep);
  background:#fff;border:1px solid var(--v-line);padding:5px 12px;border-radius:999px;box-shadow:0 2px 10px rgba(124,58,237,.08);text-decoration:none}
.eyebrow .dot{width:7px;height:7px;border-radius:999px;background:var(--v);display:inline-block}
h1{font-size:34px;font-weight:800;letter-spacing:-.02em;margin:16px 0 8px;line-height:1.25}
h1 .hl{color:var(--v)}
.lead{font-size:16px;color:var(--z500);max-width:660px;line-height:1.75}
.meta{margin-top:14px;font-size:13px;color:var(--z400)}
.meta b{color:var(--z700);font-weight:600}

/* ===== At-a-glance cards ===== */
.glance{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin:26px 0 8px}
.gcard{background:#fff;border:1px solid var(--z200);border-radius:14px;padding:17px 16px;box-shadow:0 6px 20px rgba(24,24,27,.05);position:relative;overflow:hidden}
.gcard::before{content:'';position:absolute;left:0;top:0;bottom:0;width:4px;background:var(--v)}
.gcard .gn{font-size:11px;font-weight:800;color:var(--v);letter-spacing:.04em}
.gcard h3{font-size:15px;font-weight:700;margin:7px 0 5px;line-height:1.4}
.gcard p{font-size:12.5px;color:var(--z500);line-height:1.6}
@media(max-width:720px){.glance{grid-template-columns:1fr}}

/* ===== TOC ===== */
.toc{display:flex;flex-wrap:wrap;gap:8px;margin:30px 0 8px;padding:16px 18px;background:#fff;border:1px solid var(--z200);border-radius:14px}
.toc .tl{width:100%;font-size:11px;font-weight:700;color:var(--z400);letter-spacing:.06em;text-transform:uppercase;margin-bottom:4px}
.toc a{font-size:13px;font-weight:600;color:var(--v-deep);background:var(--v-bg);border:1px solid var(--v-line);
  padding:6px 13px;border-radius:999px;text-decoration:none;transition:.13s}
.toc a:hover{background:var(--v);color:#fff;border-color:var(--v)}

/* ===== Section ===== */
section{margin-top:48px;scroll-margin-top:18px}
.sec-h{display:flex;align-items:baseline;gap:11px;margin-bottom:6px}
.sec-n{font-size:13px;font-weight:800;color:#fff;background:var(--v);width:27px;height:27px;border-radius:8px;
  display:inline-flex;align-items:center;justify-content:center;flex:0 0 auto;align-self:center;box-shadow:0 3px 8px rgba(124,58,237,.28)}
h2{font-size:23px;font-weight:800;letter-spacing:-.01em}
.sec-sub{font-size:14.5px;color:var(--z500);margin:2px 0 18px;padding-left:38px;line-height:1.7}
.auto-pill{display:inline-flex;align-items:center;gap:5px;font-size:11.5px;font-weight:700;color:var(--green-deep);
  background:var(--green-soft);border:1px solid var(--green-line);padding:2px 9px;border-radius:999px;vertical-align:middle;margin-left:7px}
.do-pill{display:inline-flex;align-items:center;gap:5px;font-size:11.5px;font-weight:700;color:var(--v-deep);
  background:var(--v-soft);border:1px solid var(--v-line);padding:2px 9px;border-radius:999px;vertical-align:middle;margin-left:7px}

/* ===== Note (설명 — NOT app UI) ===== */
.note{display:flex;gap:11px;background:#fff;border:1px solid var(--z200);border-left:4px solid var(--v);
  border-radius:0 12px 12px 0;padding:13px 16px;margin:15px 0;font-size:14px;color:var(--z700);line-height:1.7}
.note .ic{flex:0 0 auto;font-size:16px;line-height:1.5}
.note b{color:var(--ink);font-weight:700}
.note.amber{border-left-color:var(--amber)}
.note.green{border-left-color:var(--green)}
.note.red{border-left-color:var(--red)}
.kbd{background:var(--z100);border:1px solid var(--z200);border-radius:5px;padding:1px 7px;font-size:12.5px;font-weight:700;color:var(--z700)}
.em{color:var(--v-deep);font-weight:700}

/* ===== Steps ===== */
.steps{counter-reset:s;margin:16px 0}
.step{display:flex;gap:13px;padding:11px 0;border-bottom:1px dashed var(--z200)}
.step:last-child{border-bottom:none}
.step .sn{counter-increment:s;flex:0 0 auto;width:26px;height:26px;border-radius:999px;background:var(--v-soft);color:var(--v-deep);
  font-size:13px;font-weight:800;display:inline-flex;align-items:center;justify-content:center}
.step .sn::before{content:counter(s)}
.step .st{font-size:14.5px;font-weight:700;margin-bottom:1px}
.step .sd{font-size:13.5px;color:var(--z500);line-height:1.65}

/* ===== Screen replica frame ===== */
.screen{margin:18px 0 6px;border-radius:14px;border:1px solid var(--z300);background:#fff;
  box-shadow:0 16px 40px rgba(24,24,27,.13);overflow:hidden}
.screen-bar{display:flex;align-items:center;gap:8px;padding:8px 13px;background:#f7f7f9;border-bottom:1px solid var(--z200)}
.screen-bar .tl{display:flex;gap:6px}
.screen-bar .tl i{width:10px;height:10px;border-radius:999px;display:inline-block}
.tl .r{background:#ff5f57}.tl .y{background:#febc2e}.tl .g{background:#28c840}
.screen-bar .lbl{font-size:11.5px;font-weight:700;color:var(--z500);margin-left:4px}
.screen-cap{font-size:12px;color:var(--z400);text-align:center;margin:8px 0 2px}

/* ===== App badges / buttons (reusable) ===== */
.bdg{display:inline-flex;align-items:center;padding:2px 9px;border-radius:999px;font-size:11.5px;font-weight:700;white-space:nowrap}
.bdg-draft{background:var(--z100);color:var(--z500);border:1px solid var(--z200)}
.bdg-unpaid{background:var(--amber-soft);color:var(--amber-deep)}
.bdg-paid{background:#dcfce7;color:var(--green-deep)}
.ab{display:inline-flex;align-items:center;gap:5px;height:32px;padding:0 12px;border-radius:8px;font-size:12.5px;font-weight:700;
  border:1px solid var(--z200);background:#fff;color:var(--z700);font-family:inherit}
.ab.primary{background:var(--v);border-color:var(--v);color:#fff}
.ab.v{background:var(--v-soft);border-color:var(--v-line);color:var(--v-deep)}
.ab.warn{background:#fff7ed;border-color:#fed7aa;color:#c2410c}
.ico{width:12px;height:12px;flex:0 0 auto}

/* ===== Warning banner (reusable) ===== */
.warnbanner{display:flex;gap:10px;background:var(--amber-soft);border:1px solid var(--amber-line);border-radius:10px;padding:12px 15px;font-size:13px;color:var(--amber-deep);line-height:1.6}
.warnbanner .ic{font-size:16px;flex:0 0 auto}

/* ===== FAQ (reusable) ===== */
.faq{background:#fff;border:1px solid var(--z200);border-radius:12px;padding:6px 18px;margin-top:10px}
.faq details{border-bottom:1px solid var(--z100);padding:13px 0}
.faq details:last-child{border-bottom:none}
.faq summary{font-size:14.5px;font-weight:700;cursor:pointer;list-style:none;display:flex;gap:9px;align-items:flex-start}
.faq summary::-webkit-details-marker{display:none}
.faq summary .q{color:var(--v);font-weight:800;flex:0 0 auto}
.faq details[open] summary{margin-bottom:8px}
.faq .a{font-size:13.5px;color:var(--z700);line-height:1.7;padding-left:23px}
.faq .a b{color:var(--ink)}

/* ===== Footer ===== */
footer{margin-top:60px;padding-top:22px;border-top:1px solid var(--z200);font-size:12.5px;color:var(--z400);line-height:1.8}
footer b{color:var(--z700)}
footer a{color:var(--v-deep);text-decoration:none}

/* ===== Release hub — list of releases ===== */
.rlist{display:flex;flex-direction:column;gap:14px;margin-top:8px}
.rcard{display:block;background:#fff;border:1px solid var(--z200);border-radius:14px;padding:18px 20px;text-decoration:none;color:inherit;
  box-shadow:0 6px 20px rgba(24,24,27,.05);transition:transform .12s, box-shadow .12s, border-color .12s;position:relative;overflow:hidden}
.rcard::before{content:'';position:absolute;left:0;top:0;bottom:0;width:4px;background:var(--v);opacity:0;transition:opacity .12s}
.rcard:hover{transform:translateY(-2px);box-shadow:0 12px 30px rgba(124,58,237,.13);border-color:var(--v-line)}
.rcard:hover::before{opacity:1}
.rcard .rdate{font-size:12px;font-weight:700;color:var(--v);letter-spacing:.02em}
.rcard .rtitle{font-size:18px;font-weight:800;margin:5px 0 6px;line-height:1.35}
.rcard .rsum{font-size:13.5px;color:var(--z500);line-height:1.6}
.rcard .rtags{display:flex;flex-wrap:wrap;gap:6px;margin-top:11px}
.rtag{font-size:11px;font-weight:700;padding:2px 9px;border-radius:999px;background:var(--v-bg);color:var(--v-deep);border:1px solid var(--v-line)}
.rtag.audience{background:var(--z100);color:var(--z500);border-color:var(--z200)}
.rcard .rgo{position:absolute;right:18px;top:50%;transform:translateY(-50%);color:var(--z300);font-size:20px;transition:color .12s}
.rcard:hover .rgo{color:var(--v)}