/* Who's Good, PBC — shared styles
   영문: Geist / Geist Mono · 한글: 나눔스퀘어네오(Geist 에 한글 글리프가 없어 자동으로 넘어감)
   색: 비색(Celadon) v1.0 토큰 — D:\OneDrive\ClaudeMemory\design-system\비색_Celadon_디자인시스템_v1.0.md */
/* Geist 는 각 HTML <head> 의 <link> 로 받는다(@import 는 렌더를 늦춤) */
@font-face{font-family:'NanumSquare Neo';font-weight:400;font-display:swap;src:url('https://cdn.jsdelivr.net/gh/tomasyoon/fonts@main/NanumSquareNeoTTF-bRg.woff2') format('woff2');}
@font-face{font-family:'NanumSquare Neo';font-weight:700;font-display:swap;src:url('https://cdn.jsdelivr.net/gh/tomasyoon/fonts@main/NanumSquareNeoTTF-cBd.woff2') format('woff2');}
@font-face{font-family:'NanumSquare Neo';font-weight:800;font-display:swap;src:url('https://cdn.jsdelivr.net/gh/tomasyoon/fonts@main/NanumSquareNeoTTF-dEb.woff2') format('woff2');}

:root{
  --celadon-50:#EEF5F3; --celadon-100:#D5E8E2; --celadon-200:#ADD0C7; --celadon-300:#82B5A9;
  --celadon-400:#5A998C; --celadon-500:#3E8074; --celadon-600:#316A60; --celadon-700:#29564E; --celadon-800:#21443E; --celadon-900:#173029;
  --indigo-300:#7A99BC; --indigo-500:#335A82;
  --ink-50:#F3F6F5; --ink-100:#E5EBE9; --ink-200:#CBD4D1; --ink-300:#A7B2AF; --ink-400:#7B8784; --ink-500:#596461; --ink-600:#424B49; --ink-700:#313836; --ink-800:#222826; --ink-900:#161A19;
  --surface-base:#F6F8F7; --surface-raised:#FFFFFF; --surface-ink:#1B2422;
  --brass-500:#A8894E; --danger:#B24A3F;
  --sig-e:#82B5A9; --sig-s:#7A99BC; --sig-g:#C2A56B; --sig-risk:#E2705F;
  --sans:'Geist','NanumSquare Neo',system-ui,sans-serif;
  --mono:'Geist Mono','NanumSquare Neo',ui-monospace,monospace;
  --maxw:1240px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--sans);background:var(--surface-base);color:var(--ink-700);-webkit-font-smoothing:antialiased;line-height:1.5}
a{color:inherit;text-decoration:none}
img,svg{display:block;max-width:100%}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 28px}
.mono{font-family:var(--mono)}
:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(62,128,116,.45);border-radius:6px}
.skip{position:absolute;left:12px;top:-60px;z-index:100;background:#fff;color:var(--ink-900);padding:10px 14px;border-radius:8px;font-weight:600;font-size:14px;transition:top .2s}
.skip:focus{top:12px}

/* ---------- nav ---------- */
.nav{position:fixed;inset:0 0 auto 0;z-index:40;color:#fff;background:linear-gradient(rgba(22,26,25,.55),rgba(22,26,25,0));transition:background .3s}
.nav.scrolled{background:rgba(22,26,25,.9);backdrop-filter:blur(10px)}
.nav .wrap{display:flex;align-items:center;height:68px;gap:36px}
.logo{display:flex;align-items:center;gap:10px;font-weight:700;font-size:17px;letter-spacing:-.01em}
.logo-svg{height:26px;width:auto;flex:none;display:block}
footer .logo-svg{height:30px}
.logo small{font-family:var(--mono);font-weight:400;font-size:11px;opacity:.6;letter-spacing:.04em;margin-top:6px}
.sr{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.nav-links{display:flex;gap:28px;font-size:14.5px}
.nav-links a{opacity:.78;position:relative}
.nav-links a:hover,.nav-links a.active{opacity:1}
.nav-links a.active::after{content:"";position:absolute;left:0;right:0;bottom:-8px;height:2px;border-radius:2px;background:var(--celadon-300)}
.nav-cta{margin-left:auto;display:flex;gap:10px;align-items:center}
.menu-btn{display:none;margin-left:auto;background:none;border:1px solid rgba(255,255,255,.3);color:#fff;border-radius:8px;height:38px;padding:0 12px;font:500 13px var(--mono);cursor:pointer}
.mobile-menu{display:none}
@media (max-width:900px){
  .nav-links,.nav-cta{display:none}
  .menu-btn{display:block}
  .mobile-menu.open{display:flex;flex-direction:column;gap:2px;position:fixed;top:68px;left:0;right:0;z-index:39;background:rgba(22,26,25,.97);padding:10px 28px 24px;color:#fff}
  .mobile-menu a{padding:12px 0;border-bottom:1px solid rgba(255,255,255,.08);font-size:16px}
  .mobile-menu .btn{margin-top:16px;justify-content:center}
}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;gap:8px;height:42px;padding:0 18px;border-radius:10px;font-size:14.5px;font-weight:600;transition:all .2s;cursor:pointer;border:1px solid transparent;font-family:var(--sans);white-space:nowrap}
.btn-primary{background:var(--celadon-500);color:#fff}.btn-primary:hover{background:var(--celadon-600)}
.btn-light{background:#fff;color:var(--ink-900)}.btn-light:hover{background:var(--celadon-50)}
.btn-ghost{border-color:currentColor;opacity:.85}.btn-ghost:hover{opacity:1}

/* ---------- type ---------- */
.eyebrow{font-family:var(--mono);font-size:12px;letter-spacing:.14em;text-transform:uppercase;color:var(--celadon-300);display:flex;align-items:center;gap:10px}
.eyebrow .dot{width:7px;height:7px;border-radius:50%;background:var(--sig-risk);animation:ping 1.8s infinite}
@keyframes ping{0%{box-shadow:0 0 0 0 rgba(226,112,95,.55)}80%,100%{box-shadow:0 0 0 10px rgba(226,112,95,0)}}
.kicker{font-family:var(--mono);font-size:12px;letter-spacing:.14em;text-transform:uppercase;color:var(--celadon-600)}
h2.big{font-size:clamp(32px,4vw,54px);line-height:1.04;letter-spacing:-.035em;font-weight:600;color:var(--ink-900);margin-top:16px;max-width:18ch}
h3.mid{font-size:clamp(22px,2.2vw,28px);letter-spacing:-.025em;font-weight:600;color:var(--ink-900);line-height:1.15}
.sub{font-size:18px;color:var(--ink-500);max-width:40rem;margin-top:18px}
.dark .kicker{color:var(--celadon-300)} .dark h2.big,.dark h3.mid{color:#fff} .dark .sub{color:rgba(255,255,255,.66)}

/* ---------- page header (sub pages) ---------- */
.phead{position:relative;background:var(--surface-ink);color:#fff;overflow:hidden;padding:168px 0 96px}
.phead canvas{position:absolute;inset:0;width:100%;height:100%;opacity:.55}
.phead .wrap{position:relative;z-index:2}
.phead h1{font-size:clamp(40px,5.6vw,76px);line-height:1;letter-spacing:-.045em;font-weight:600;margin:22px 0 22px;max-width:15ch}
.phead h1 em{font-style:normal;color:var(--celadon-200)}
.phead p.lede{font-size:clamp(16px,1.35vw,19px);color:rgba(255,255,255,.72);max-width:38rem}
.phead .ctas{display:flex;gap:12px;margin-top:32px;flex-wrap:wrap}
.phead .ctas .btn-ghost{color:#fff}

/* ---------- sections & blocks ---------- */
section.s{padding:112px 0}
section.s.tight{padding:80px 0}
.band-dark{background:var(--surface-ink);color:#fff}
.inset-dark{background:var(--surface-ink);color:#fff;border-radius:28px;margin:0 16px;overflow:hidden}
.split{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:center}
.split.top{align-items:start}
.split>*{min-width:0}
@media (max-width:960px){.split{grid-template-columns:1fr;gap:40px}}

.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:56px}
.grid2{display:grid;grid-template-columns:repeat(2,1fr);gap:18px;margin-top:56px}
.grid4{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-top:56px}
@media (max-width:960px){.grid3,.grid4{grid-template-columns:1fr 1fr}.grid2{grid-template-columns:1fr}}
@media (max-width:620px){.grid3,.grid4{grid-template-columns:1fr}}

.card{background:#fff;border:1px solid var(--ink-100);border-radius:18px;padding:28px 26px 26px;display:flex;flex-direction:column;transition:border-color .2s,transform .2s,box-shadow .2s}
a.card:hover,.card.hover:hover{border-color:var(--celadon-300);transform:translateY(-3px);box-shadow:0 18px 40px -24px rgba(22,26,25,.35)}
.card .tag{font-family:var(--mono);font-size:11.5px;letter-spacing:.08em;color:var(--ink-400);text-transform:uppercase}
.card h3{font-size:22px;letter-spacing:-.025em;font-weight:600;color:var(--ink-900);margin:14px 0 10px;line-height:1.2}
.card p{color:var(--ink-500);font-size:15.5px}
.card ul{list-style:none;margin-top:auto;padding-top:22px;font-size:14px;color:var(--ink-600)}
.card li{padding:8px 0;border-top:1px dashed var(--ink-200);display:flex;gap:10px}
.card li::before{content:"→";color:var(--celadon-500)}
.card .more{margin-top:auto;padding-top:22px;font-weight:600;font-size:14.5px;color:var(--celadon-600)}
.card .viz{height:64px;margin-bottom:6px}
.dark .card{background:rgba(255,255,255,.04);border-color:rgba(255,255,255,.09)}
.dark .card h3{color:#fff}.dark .card p{color:rgba(255,255,255,.62)}.dark .card .tag{color:rgba(255,255,255,.45)}

/* numbered steps */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:0;margin-top:56px;counter-reset:st;border-top:1px solid var(--ink-200)}
.step{padding:26px 22px 0 0;position:relative}
.step::before{counter-increment:st;content:"0" counter(st);font-family:var(--mono);font-size:12px;color:var(--celadon-600);letter-spacing:.1em}
.step::after{content:"";position:absolute;top:-5px;left:0;width:9px;height:9px;border-radius:50%;background:var(--celadon-500)}
.step h4{font-size:19px;letter-spacing:-.02em;color:var(--ink-900);margin:10px 0 8px;font-weight:600}
.step p{font-size:15px;color:var(--ink-500)}
.step .out{margin-top:12px;font-family:var(--mono);font-size:11.5px;color:var(--ink-400);letter-spacing:.04em}
.dark .steps{border-color:rgba(255,255,255,.14)}.dark .step h4{color:#fff}.dark .step p{color:rgba(255,255,255,.62)}.dark .step::before{color:var(--celadon-300)}
@media (max-width:900px){.steps{grid-template-columns:1fr 1fr;row-gap:36px}}
@media (max-width:560px){.steps{grid-template-columns:1fr}}

/* feature list */
.feat{display:grid;grid-template-columns:200px 1fr;gap:28px;padding:28px 0;border-top:1px solid var(--ink-100)}
.feat:last-child{border-bottom:1px solid var(--ink-100)}
.feat .k{font-family:var(--mono);font-size:12px;letter-spacing:.1em;text-transform:uppercase;color:var(--celadon-600);padding-top:5px}
.feat h4{font-size:22px;letter-spacing:-.02em;color:var(--ink-900);font-weight:600;margin-bottom:8px}
.feat p{color:var(--ink-500);max-width:44rem}
@media (max-width:760px){.feat{grid-template-columns:1fr;gap:8px}}

/* chips */
.chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:22px}
.chip{font-family:var(--mono);font-size:12px;padding:6px 11px;border-radius:999px;background:var(--celadon-50);color:var(--celadon-700);border:1px solid var(--celadon-100)}
.dark .chip{background:rgba(130,181,169,.1);color:var(--celadon-200);border-color:rgba(130,181,169,.2)}

/* proof strip */
.proof{border-bottom:1px solid var(--ink-100);background:#fff}
.proof .row{display:grid;grid-template-columns:repeat(4,1fr)}
.stat{padding:38px 24px 34px;border-left:1px solid var(--ink-100)}
.stat:first-child{border-left:0;padding-left:0}
.stat .n{font-size:clamp(30px,3.4vw,46px);font-weight:600;letter-spacing:-.04em;color:var(--ink-900);font-feature-settings:"tnum"}
.stat .l{font-size:14px;color:var(--ink-500);margin-top:6px}
.asof{font-family:var(--mono);font-size:11px;color:var(--ink-400);padding-bottom:14px;letter-spacing:.04em}
@media (max-width:860px){.proof .row{grid-template-columns:1fr 1fr}.stat{border-left:0;padding-left:0;border-top:1px solid var(--ink-100)}}

/* code block */
.code{background:var(--ink-900);color:#D5E8E2;border-radius:16px;padding:22px 24px;font:13px/1.7 var(--mono);overflow:auto;border:1px solid rgba(255,255,255,.06)}
.code .c{color:#7B8784}.code .k{color:#82B5A9}.code .s{color:#C2A56B}

/* CTA band */
.cta-band{text-align:center}
.cta-band h2.big{margin:16px auto 0;max-width:20ch}
.cta-band .sub{margin:18px auto 0}
.cta-band .row{display:flex;gap:12px;justify-content:center;margin-top:34px;flex-wrap:wrap}
.cta-band .btn-ghost{color:var(--ink-800)}

/* ---------- footer ---------- */
footer{background:var(--ink-900);color:rgba(255,255,255,.62);font-size:14px;padding:72px 0 40px}
footer .cols{display:grid;grid-template-columns:1.4fr repeat(3,1fr);gap:40px}
footer h4{font-family:var(--mono);font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:rgba(255,255,255,.4);margin-bottom:14px;font-weight:500}
footer a{display:block;padding:4px 0}footer a:hover{color:#fff}
footer address{font-style:normal;line-height:1.6}
footer .logo{color:#fff;margin-bottom:16px}
footer .legal{margin-top:56px;padding-top:22px;border-top:1px solid rgba(255,255,255,.08);display:flex;justify-content:space-between;font-size:12.5px;color:rgba(255,255,255,.4);flex-wrap:wrap;gap:10px}
footer .legal a{display:inline;padding:0}
@media (max-width:860px){footer .cols{grid-template-columns:1fr 1fr}}

/* ---------- reveal ---------- */
.rv{opacity:0;transform:translateY(14px);transition:opacity .7s ease,transform .7s ease}
.rv.in{opacity:1;transform:none}

/* ---------- 시안 검토 도구 (운영 배포 전 제거) ---------- */
.review-btn{position:fixed;left:50%;bottom:18px;transform:translateX(-50%);z-index:60;border:1px solid rgba(255,255,255,.12);background:rgba(22,26,25,.9);color:rgba(255,255,255,.75);padding:9px 16px;border-radius:999px;font:12px var(--mono);cursor:pointer;backdrop-filter:blur(10px);box-shadow:0 10px 30px -10px rgba(0,0,0,.5)}
.review-btn.on{background:#fff;color:var(--ink-900)}
.verify{display:none}
body.review .verify{display:inline-block;font-family:var(--mono);font-size:10px;font-weight:600;letter-spacing:.04em;color:#fff;background:var(--danger);border-radius:4px;padding:1px 5px;margin-left:6px;vertical-align:super;line-height:1.4}
.notes{position:fixed;right:20px;bottom:66px;z-index:61;width:min(420px,calc(100% - 40px));max-height:60vh;overflow:auto;background:#fff;color:var(--ink-700);border:1px solid var(--ink-200);border-radius:14px;padding:18px 20px;font-size:13.5px;box-shadow:0 20px 50px -20px rgba(0,0,0,.4);display:none;line-height:1.6}
body.review .notes{display:block}
.notes h5{font-size:13px;color:var(--ink-900);margin:12px 0 4px}.notes h5:first-child{margin-top:0}
.notes li{margin-left:18px}
.notes code{font-size:12px;background:var(--ink-50);padding:0 4px;border-radius:4px}

@media (prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}.rv{opacity:1;transform:none}}