@import url('https://cdn.jsdelivr.net/gh/orioncactus/pretendard@v1.3.9/dist/web/static/pretendard.css');
:root{ --ink:#1b1626; --mut:#665f75; --line:#e6e1ef; --bg:#f8f6fc; --card:#fff; --accent:#6d28d9; --accent-ink:#fff;
  --accent-soft:color-mix(in srgb, var(--accent) 12%, transparent); }
*{ box-sizing:border-box; }
body{ margin:0; background:var(--bg); color:var(--ink); position:relative; overflow-x:hidden;
  font-family:'Pretendard',-apple-system,BlinkMacSystemFont,"Segoe UI","Apple SD Gothic Neo","Noto Sans KR",sans-serif;
  line-height:1.6; -webkit-font-smoothing:antialiased; }
body::before{ content:''; position:fixed; top:-260px; left:50%; transform:translateX(-50%); width:640px; height:420px;
  background:radial-gradient(circle, var(--accent) 0%, transparent 68%); opacity:.10; filter:blur(50px);
  pointer-events:none; z-index:0; }
a{ color:inherit; text-decoration:none; }
.site-header{ display:flex; align-items:center; justify-content:space-between;
  padding:16px 22px; background:rgba(255,255,255,.85); backdrop-filter:blur(10px); -webkit-backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line); position:sticky; top:0; z-index:10; }
.logo{ font-weight:800; font-size:16.5px; display:flex; align-items:center; gap:8px; }
.logo .dot{ width:10px; height:10px; border-radius:50%; background:var(--accent); display:inline-block;
  box-shadow:0 0 0 4px var(--accent-soft); }
.site-header nav a{ margin-left:18px; font-size:13.5px; color:var(--mut); font-weight:600; transition:color .15s; }
.site-header nav a:hover{ color:var(--accent); }
.wrap{ max-width:800px; margin:0 auto; padding:40px 20px 60px; position:relative; z-index:1; }
h1{ font-size:31px; font-weight:800; letter-spacing:-.03em; margin:0 0 10px; }
.grad{ background:linear-gradient(135deg, var(--accent), color-mix(in srgb, var(--accent), white 45%));
  -webkit-background-clip:text; background-clip:text; color:transparent; }
.lead{ color:var(--mut); margin:0 0 8px; font-size:15px; }
.badge{ display:inline-flex; align-items:center; gap:6px; font-size:12px; font-weight:700; color:var(--accent);
  background:var(--accent-soft); border:1px solid color-mix(in srgb, var(--accent) 25%, transparent);
  padding:6px 12px; border-radius:999px; margin-bottom:16px; }
.calc-wrap{ background:var(--card); border:1px solid var(--line); border-radius:20px; padding:26px;
  margin:20px 0 28px; box-shadow:0 2px 10px rgba(27,22,38,.04), 0 12px 32px -12px rgba(27,22,38,.10); }
textarea{ width:100%; min-height:260px; padding:14px 16px; font-size:15px; line-height:1.7; font-family:inherit;
  border:1px solid var(--line); border-radius:14px; background:#fbfaff; resize:vertical;
  transition:border-color .15s, box-shadow .15s, background .15s; }
textarea:focus{ outline:none; border-color:var(--accent); background:#fff; box-shadow:0 0 0 3px var(--accent-soft); }
.limit-row{ display:flex; gap:12px; align-items:center; margin:12px 0 4px; flex-wrap:wrap; }
.limit-row label{ font-size:12.5px; color:var(--mut); font-weight:700; }
.limit-row input{ width:100px; padding:9px 11px; font-size:14px; border:1px solid var(--line); border-radius:8px; font-family:inherit; }
.limit-row select{ padding:9px 11px; border:1px solid var(--line); border-radius:8px; font-family:inherit; font-size:14px; }
.stat-grid{ display:grid; grid-template-columns:repeat(4,1fr); gap:10px; margin-top:16px; }
.rc{ background:#fbfaff; border:1px solid var(--line); border-radius:14px; padding:12px 14px; }
.rc h3{ margin:0 0 6px; font-size:12px; color:var(--mut); font-weight:700; }
.rc .num{ font-size:19px; font-weight:800; letter-spacing:-.01em; }
.rc.over .num{ color:#c23b30; }
.rc.ok .num{ color:var(--accent); }
.flags{ margin-top:16px; }
.flags.empty{ color:#2e7d32; font-weight:600; font-size:13.5px; padding:12px 14px; background:#e7f6ea; border-radius:12px; }
.flag{ display:flex; justify-content:space-between; align-items:center; padding:9px 14px; background:#f3ecfd;
  border-radius:10px; margin-bottom:6px; font-size:13.5px; }
.flag b{ color:var(--accent); }
.flag span{ color:var(--mut); font-size:12px; }
.note{ font-size:13.5px; color:#3a3a3a; margin-top:18px; line-height:1.85; background:var(--card);
  border:1px solid var(--line); border-radius:18px; padding:22px 24px; }
.note h2{ font-size:15.5px; margin:16px 0 6px; } .note h2:first-child{ margin-top:0; }
.related{ margin-top:28px; padding:20px 22px; background:#fff; border:1px solid var(--line); border-radius:18px; }
.related h3{ font-size:13px; color:var(--mut); margin:0 0 10px; }
.related a{ display:inline-block; margin:0 10px 6px 0; font-size:13.5px; font-weight:700; color:var(--accent); transition:opacity .15s; }
.related a:hover{ opacity:.7; }
.site-footer{ border-top:1px solid var(--line); background:#fff; padding:24px;
  text-align:center; font-size:12.5px; color:var(--mut); position:relative; z-index:1; }
.site-footer a{ color:var(--accent); }
@media(max-width:600px){ .stat-grid{ grid-template-columns:1fr 1fr; } }