/* ComAsNas site (comasnas.com) — shared styles. System fonts only, no external requests. */
:root{
  color-scheme:light dark;
  --bg:#F6F8F7; --surface:#FFFFFF; --surface-2:#EEF3F1; --ink:#14201E; --muted:#56635F; --line:#D9E1DE;
  --accent:#0D9488;        /* brand teal (decorative, large marks) */
  --accent-ink:#0F766E;    /* text/button teal with AA contrast on light surfaces */
  --on-accent:#FFFFFF; --accent-soft:#E2F4F1; --warn-bg:#FFF6E0; --warn-line:#EBCB7A; --warn-ink:#5C4300;
  --radius:16px; --maxw:960px;
  font-family:-apple-system,BlinkMacSystemFont,"Apple SD Gothic Neo","Segoe UI","Malgun Gothic","Noto Sans KR",system-ui,sans-serif;
}
@media (prefers-color-scheme:dark){
  :root{
    --bg:#0E1413; --surface:#151D1C; --surface-2:#1B2624; --ink:#E6EEEC; --muted:#9AA9A5; --line:#283533;
    --accent:#2DC5B5; --accent-ink:#2DC5B5; --on-accent:#04201D; --accent-soft:#163331;
    --warn-bg:#2B2410; --warn-line:#6B5520; --warn-ink:#F1D9A0;
  }
}
*{box-sizing:border-box}
[hidden]{display:none!important}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--ink);font-size:16px;line-height:1.65;word-break:keep-all;overflow-wrap:anywhere}
a{color:var(--accent-ink);text-underline-offset:2px}
a:focus-visible,button:focus-visible{outline:3px solid var(--accent);outline-offset:2px;border-radius:6px}
img{max-width:100%;height:auto}
.skip{position:absolute;left:-9999px;top:8px;background:var(--surface);color:var(--ink);padding:8px 12px;border-radius:8px;z-index:10}
.skip:focus{left:16px}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 16px}
/* header */
.site-head{border-bottom:1px solid var(--line);background:var(--surface)}
.site-head .wrap{display:flex;align-items:center;justify-content:space-between;gap:12px;min-height:60px;flex-wrap:wrap;padding-top:8px;padding-bottom:8px}
.brand{display:flex;align-items:center;gap:10px;color:var(--ink);text-decoration:none;font-weight:700;font-size:18px;letter-spacing:-.01em}
.brand img{width:32px;height:32px;border-radius:8px}
.site-nav ul{display:flex;gap:4px 14px;list-style:none;margin:0;padding:0;flex-wrap:wrap}
.site-nav a{color:var(--muted);text-decoration:none;font-size:15px;padding:6px 2px;display:inline-block}
.site-nav a:hover{color:var(--ink)}
.site-nav a[aria-current="page"]{color:var(--accent-ink);font-weight:600}
/* main */
main{padding:40px 0 56px}
h1{font-size:clamp(28px,5vw,42px);line-height:1.2;letter-spacing:-.02em;margin:0 0 12px}
h2{font-size:clamp(21px,3vw,26px);line-height:1.3;margin:48px 0 14px;letter-spacing:-.01em}
h3{font-size:18px;margin:0 0 6px}
p{margin:0 0 12px}
.lead{font-size:clamp(17px,2.2vw,20px);color:var(--muted);max-width:42em}
.muted{color:var(--muted)}
.small{font-size:14px}
.hero{display:grid;grid-template-columns:auto 1fr;gap:28px;align-items:center}
.hero-icon{width:128px;height:128px;border-radius:28px;box-shadow:0 8px 28px rgba(13,148,136,.22)}
@media (max-width:640px){.hero{grid-template-columns:1fr;gap:18px}.hero-icon{width:96px;height:96px;border-radius:22px}}
.actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:48px;padding:10px 20px;border-radius:12px;font-weight:600;font-size:16px;text-decoration:none;border:1px solid transparent;line-height:1.3;text-align:center}
.btn-primary{background:var(--accent-ink);color:var(--on-accent)}
.btn-primary:hover{filter:brightness(1.08)}
.btn-secondary{background:var(--surface);color:var(--ink);border-color:var(--line)}
.btn-secondary:hover{border-color:var(--accent)}
.btn[aria-disabled="true"]{background:var(--surface-2);color:var(--muted);border-color:var(--line);cursor:not-allowed;filter:none}
.btn small{font-weight:500;font-size:13px;opacity:.85}
.grid{display:grid;gap:14px}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-2{grid-template-columns:repeat(2,1fr)}
@media (max-width:760px){.grid-3,.grid-2{grid-template-columns:1fr}}
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:20px}
.card p:last-child,.card ul:last-child{margin-bottom:0}
.step-num{display:inline-grid;place-items:center;width:34px;height:34px;border-radius:50%;background:var(--accent-soft);color:var(--accent-ink);font-weight:700;margin-bottom:10px}
.card ul{margin:0 0 12px;padding-left:20px}
.card li{margin:4px 0}
.note{background:var(--warn-bg);border:1px solid var(--warn-line);color:var(--warn-ink);border-radius:12px;padding:14px 16px;margin:16px 0}
.note strong{color:inherit}
.badge{display:inline-block;font-size:13px;font-weight:600;padding:3px 10px;border-radius:99px;background:var(--surface-2);color:var(--muted);border:1px solid var(--line);vertical-align:middle}
.req{width:100%;border-collapse:collapse;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
.req th,.req td{text-align:left;padding:12px 16px;border-bottom:1px solid var(--line);vertical-align:top}
.req tr:last-child th,.req tr:last-child td{border-bottom:0}
.req th{width:34%;font-weight:600;background:var(--surface-2)}
@media (max-width:520px){.req th,.req td{display:block;width:100%}.req th{border-bottom:0;padding-bottom:4px}}
/* long-form documents (privacy / support) */
.doc{max-width:46em}
.doc h2{border-top:1px solid var(--line);padding-top:28px}
.doc h2:first-of-type{border-top:0;padding-top:0;margin-top:28px}
.doc ul,.doc ol{padding-left:22px}
.doc li{margin:6px 0}
.lang-switch{display:flex;gap:8px;flex-wrap:wrap;margin:12px 0 0}
.lang-switch a{font-size:14px;padding:6px 12px;border:1px solid var(--line);border-radius:99px;text-decoration:none;background:var(--surface)}
.effective{font-size:15px;color:var(--muted)}
/* footer */
.site-foot{border-top:1px solid var(--line);padding:24px 0 32px;color:var(--muted);font-size:14px}
.site-foot ul{display:flex;flex-wrap:wrap;gap:6px 16px;list-style:none;margin:0 0 8px;padding:0}
.site-foot a{color:var(--muted)}
.site-foot a:hover{color:var(--ink)}
.doc h3{margin:22px 0 6px}
.doc dt{margin-top:16px}
.doc dd{margin:4px 0 0}
.doc section+section>h2:first-child{border-top:1px solid var(--line);padding-top:28px;margin-top:48px}
.doc section{scroll-margin-top:16px}