:root{--bg:#F6F7F9;--ink:#0F1216;--body:#2B303A;--muted:#565B66;--line:#D5D9E2;--soft:#E3E6EC;--accent:#2B4BFF}
*{box-sizing:border-box}
[hidden]{display:none!important}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--ink);font-family:'IBM Plex Sans KR',system-ui,sans-serif;line-height:1.6;word-break:keep-all}
html[lang=en] body{word-break:normal}
a{color:var(--ink)}
a:hover{color:var(--accent)}
:focus-visible{outline:3px solid var(--accent);outline-offset:3px}
.wrap{max-width:1120px;margin:0 auto;padding-left:24px;padding-right:24px}
.mono{font-family:'IBM Plex Mono',ui-monospace,monospace}

.top{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:16px;padding-top:28px;padding-bottom:28px}
.brand{display:flex;align-items:center;gap:14px}
.mark{display:flex;align-items:center;gap:5px;font-family:'Bricolage Grotesque',sans-serif;font-weight:800;font-size:26px;letter-spacing:-.02em;line-height:1;color:var(--ink);text-decoration:none}
.mark i{display:inline-block;width:3px;height:24px;border-radius:2px;background:var(--accent)}
.by{font-size:13px;color:var(--muted)}
.nav{display:flex;align-items:center;gap:20px;font-size:15px}
.nav a{display:inline-flex;align-items:center;min-height:44px;text-decoration:none}
.nav .pill{padding:0 18px;border:1.5px solid var(--ink);border-radius:999px;font-weight:600}

.hero{display:flex;flex-wrap:wrap;align-items:center;gap:48px;padding-top:56px;padding-bottom:72px}
.hero-text{flex:999 1 520px;min-width:0;display:flex;flex-direction:column;gap:24px}
.eyebrow{font-size:14px;color:var(--muted)}
h1{margin:0;font-size:clamp(36px,5vw,60px);line-height:1.16;font-weight:700;letter-spacing:-.03em}
h1 em{font-style:normal;color:var(--accent)}
html[lang=en] h1{font-family:'Bricolage Grotesque',sans-serif;font-size:clamp(38px,5.2vw,64px);line-height:1.06}
.lead{margin:0;max-width:560px;font-size:19px;color:var(--body)}
.cta-row{display:flex;flex-wrap:wrap;align-items:center;gap:16px}
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:52px;padding:0 28px;border:0;border-radius:999px;background:var(--accent);color:#fff;text-decoration:none;font-family:inherit;font-size:17px;font-weight:600;cursor:pointer}
.btn:hover{color:#fff;filter:brightness(1.1)}
.btn[disabled]{opacity:.6;cursor:default}
.note{font-size:15px;color:var(--muted)}

.score{flex:1 1 440px;min-width:0;max-width:530px}
.score svg{display:block;width:100%;height:auto;overflow:visible}
.score text{font-family:'IBM Plex Sans KR',system-ui,sans-serif;font-size:14px;font-weight:600;fill:var(--ink);text-anchor:middle;dominant-baseline:central}
.score text.on{fill:#fff}
.score text.head{text-anchor:start}
.score text.tag{text-anchor:start;font-size:13px;fill:var(--accent)}
.score .link{fill:none;stroke:#8E94A3;stroke-width:1.5;stroke-linecap:round}
.score .flow{fill:none;stroke:var(--accent);stroke-width:2.5;stroke-linecap:round}
.score .check{fill:none;stroke:var(--accent);stroke-width:2.2;stroke-linecap:round;stroke-linejoin:round}
.score .shade{fill:#DADFE8}
.score .sheet{fill:#fff;stroke:var(--ink);stroke-width:1.5}
.score .rule{stroke:var(--soft);stroke-width:1.5}
.score .bar{fill:var(--line)}
.score .bar.hot{fill:var(--accent)}
.score .chat{fill:#fff;stroke:var(--ink);stroke-width:1.5;stroke-linejoin:round}
.score .chat.from{fill:var(--accent);stroke:var(--accent)}
.score .chat.to{stroke:var(--accent);stroke-width:2.5}

.demo{padding-bottom:88px}
.board{background:#fff;border:1px solid var(--line);border-radius:16px;overflow:hidden}
.board-head{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;padding:16px 24px;border-bottom:1px solid var(--soft)}
.rooms{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px}
.rooms b{font-size:15px;margin-right:8px}
.rooms span{padding:4px 10px;border-radius:999px;background:#EEF0F4}
.unread{display:flex;align-items:center;gap:8px;padding:4px 12px;border-radius:999px;background:#FFE6D6;color:#5A2400;font-size:13px;font-weight:600}
.unread::before,.wait::before{content:'';width:8px;height:8px;border-radius:50%;background:#E8590C;flex:none}
.pin{display:flex;align-items:flex-start;gap:12px;padding:14px 24px;background:#F1F3FF;border-bottom:1px solid var(--soft);font-size:15px}
.pin svg{flex:none;margin-top:3px;stroke:var(--accent)}
.post{display:flex;flex-direction:column;gap:8px;padding:18px 24px;border-bottom:1px solid var(--soft)}
.post:last-child{border-bottom:0}
.post.reply{padding-left:56px;background:#FAFBFC}
.post-head{display:flex;flex-wrap:wrap;align-items:baseline;gap:10px}
.post-head b{font-family:'IBM Plex Mono',ui-monospace,monospace;font-size:14px}
.post-head span{font-size:13px;color:var(--muted)}
.post p{margin:0;font-size:16px}
.at{font-weight:600;color:var(--accent);white-space:nowrap}
.meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:13px;color:var(--muted)}
.file{display:inline-flex;align-items:center;gap:6px;padding:3px 10px;border:1px solid var(--line);border-radius:8px}
.seen{display:inline-flex;align-items:center;gap:5px}
.wait{display:flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:#5A2400}
.caption{margin:14px 0 0;font-size:14px;color:var(--muted)}

.three{display:flex;flex-wrap:wrap;gap:40px;padding-bottom:96px}
.three>div{flex:1 1 280px;min-width:0;display:flex;flex-direction:column;gap:12px;padding-top:20px;border-top:2px solid var(--ink)}
.num{font-family:'Bricolage Grotesque',sans-serif;font-weight:700;font-size:15px;color:var(--accent)}
h2{margin:0;font-size:24px;line-height:1.3;font-weight:700;letter-spacing:-.02em}
.three p,.two p{margin:0;font-size:17px;color:var(--body)}
.two{display:flex;flex-wrap:wrap;gap:40px;padding-bottom:96px}
.two>div{flex:1 1 420px;min-width:0;display:flex;flex-direction:column;gap:14px}
.two h2{font-size:28px}
.two p.small{font-size:15px;color:var(--muted)}

.join{background:var(--ink);color:#fff}
.join .wrap{display:flex;flex-wrap:wrap;align-items:flex-start;gap:48px;padding-top:80px;padding-bottom:80px}
.join .wrap>*{flex:1 1 380px;min-width:0}
.join h2{font-size:clamp(28px,3.6vw,40px);line-height:1.25;margin-bottom:14px}
.join p{margin:0;font-size:17px;color:#C9CED8}
.join form{display:flex;flex-direction:column;gap:14px}
.join label{font-size:15px;font-weight:600}
.join input[type=email]{width:100%;min-height:52px;padding:0 16px;border:1.5px solid #5C6370;border-radius:12px;background:#171B22;color:#fff;font-family:inherit;font-size:16px}
.join .check{display:flex;align-items:flex-start;gap:10px;font-size:14px;font-weight:400;color:#C9CED8}
.join .check input{width:20px;height:20px;margin:2px 0 0;flex:none}
.join .check a{color:#fff}
.join .status{min-height:24px;font-size:15px;color:#fff}
.join :focus-visible{outline-color:#fff}
.join ul.terms{margin:20px 0 0;padding-left:20px;display:flex;flex-direction:column;gap:8px;font-size:15px;color:#C9CED8}
.join .fine{font-size:13px;color:#A9AFBB}
.join .fine a{color:#fff}
.hp{position:absolute;left:-9999px;width:1px;height:1px;opacity:0}

.foot{display:flex;flex-direction:column;gap:6px;padding-top:36px;padding-bottom:56px;font-size:13px;color:var(--muted)}
.foot .name{color:var(--ink)}
.foot a{color:var(--muted)}

.doc{max-width:760px;padding-top:24px;padding-bottom:72px}
.doc h1{font-size:clamp(28px,4vw,40px);margin-bottom:8px}
.doc h2{font-size:19px;margin:32px 0 8px}
.doc p,.doc li{font-size:16px;color:var(--body)}
.doc p{margin:0 0 12px}
.doc ol,.doc ul{margin:0 0 12px;padding-left:22px}
.doc li{margin-bottom:8px}
.doc .date{font-size:14px;color:var(--muted);margin-bottom:28px}
.table-scroll{overflow-x:auto;margin:0 0 12px}
.doc table{border-collapse:collapse;min-width:640px;width:100%;font-size:14px}
.doc th,.doc td{border:1px solid var(--line);padding:8px 10px;text-align:left;vertical-align:top}
.doc th{background:#EEF0F4}

.fb form{display:flex;flex-direction:column;gap:12px}
.fb label{font-size:16px;font-weight:600;margin-top:12px}
.fb fieldset{margin:0;padding:0;border:0;display:flex;flex-direction:column;gap:8px}
.fb legend{padding:0;margin-bottom:10px;font-size:19px;font-weight:700}
.fb .pick{display:flex;align-items:center;gap:10px;min-height:48px;margin:0;padding:0 14px;border:1.5px solid var(--line);border-radius:12px;background:#fff;font-weight:500;cursor:pointer}
.fb .pick:has(input:checked){border-color:var(--accent);background:#F1F3FF}
.fb .pick input{width:20px;height:20px;margin:0;flex:none}
.fb textarea,.fb input[type=email]{width:100%;padding:12px 14px;border:1.5px solid var(--line);border-radius:12px;background:#fff;color:var(--ink);font-family:inherit;font-size:16px;line-height:1.5}
.fb input[type=email]{min-height:48px}
.fb textarea{resize:vertical}
.fb .check{display:flex;align-items:flex-start;gap:10px;margin:0;font-size:14px;font-weight:400;color:var(--body)}
.fb .check input{width:20px;height:20px;margin:2px 0 0;flex:none}
.fb .fine{margin:8px 0 0;font-size:13px;color:var(--muted)}
.fb .numbers{margin-top:16px;padding:16px;border:1px solid var(--line);border-radius:12px;background:#fff;display:flex;flex-direction:column;gap:12px}
.fb .numbers p{margin:0;font-size:14px}
.fb dl{margin:0;display:flex;flex-wrap:wrap;gap:8px}
.fb dl div{flex:1 1 130px;padding:8px 10px;border-radius:8px;background:#EEF0F4}
.fb dt{font-size:12px;color:var(--muted)}
.fb dd{margin:0;font-family:'IBM Plex Mono',ui-monospace,monospace;font-size:15px;font-weight:600}
.fb .status{min-height:24px;margin:0;font-size:15px}
.fb .btn{align-self:flex-start;margin-top:8px}
.fb .thanks{padding:24px;border:1.5px solid var(--ink);border-radius:16px;background:#fff}
.fb .thanks h2{margin-top:0}
.fb .code{padding:2px 10px;border-radius:8px;background:#F1F3FF;color:var(--accent);font-size:18px}

.sr{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.signup{display:flex;flex-direction:column;gap:12px;max-width:560px;padding:20px;border:1px solid var(--line);border-radius:16px;background:#fff;scroll-margin-top:24px}
.signup-head{margin:0;font-size:15px;color:var(--body)}
.signup-head a{color:var(--accent)}
.signup form{display:flex;flex-direction:column;gap:10px}
.field-row{display:flex;flex-wrap:wrap;gap:10px}
.field-row input{flex:1 1 220px;min-width:0;min-height:52px;padding:0 16px;border:1.5px solid var(--line);border-radius:12px;background:#fff;color:var(--ink);font-family:inherit;font-size:16px}
.field-row input:focus{border-color:var(--accent);outline:none}
.field-row .btn{flex:0 0 auto}
.signup .check{display:flex;align-items:flex-start;gap:10px;font-size:14px;color:var(--body);cursor:pointer}
.signup .check input{width:20px;height:20px;margin:1px 0 0;flex:none}
.signup .fine{margin:2px 0 0;font-size:12px;line-height:1.55;color:var(--muted)}
.signup .fine a{color:var(--muted)}
.signup .status:empty{display:none}
.signup .status{margin:0;font-size:15px;font-weight:600;color:var(--accent)}
.join-back{display:flex;align-items:flex-end}

@media (max-width:560px){
  .hero{padding-top:32px;padding-bottom:56px}
  .field-row .btn{flex:1 1 100%}
  .signup{padding:16px}
  .post.reply{padding-left:36px}
  .three,.two{padding-bottom:64px}
}