:root{
  --paper:#E9E9E4;
  --paper-2:#F4F4EF;
  --panel:#F8F8F3;
  --ink:#1A1A17;
  --ink-2:#474742;
  --faint:#82827B;
  --rule:#CFCFC6;
  --rule-2:#E1E1D8;
  --red:#E02028;
  --red-deep:#B0161D;
  --red-trace:#F03A34;
  --navy:#22396B;
  --navy-deep:#172A52;
  --screen:#0B1013;
  --cyan:#3BC3C9;
  --sans:"IBM Plex Sans KR",-apple-system,BlinkMacSystemFont,system-ui,"Apple SD Gothic Neo","Noto Sans KR",sans-serif;
  --mono:"IBM Plex Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
}
/* 다크 모드 — OS 설정이 다크면 자동 적용. 색 변수만 오버라이드(마크업/레이아웃 무변경). */
@media (prefers-color-scheme:dark){
  :root{
    --paper:#131519;
    --paper-2:#1A1D22;
    --panel:#1A1D22;
    --ink:#E9E9E3;
    --ink-2:#B0B0A8;
    --faint:#83837B;
    --rule:#2C2F36;
    --rule-2:#23262C;
    --red:#F0555C;
    --red-deep:#F0555C;
    --navy:#6E8FD6;
    --navy-deep:#5A7BC2;
  }
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--sans);font-size:16.5px;line-height:1.72;font-weight:400;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;word-break:keep-all;overflow-wrap:break-word;text-wrap:pretty;overflow-x:hidden}
a{color:inherit}
img,svg{max-width:100%}
h1,h2,h3{margin:0;font-weight:700;letter-spacing:-.02em;line-height:1.14}
p{margin:0}
.wrap{max-width:1120px;margin:0 auto;padding:0 34px;position:relative}
@media(max-width:640px){.wrap{padding:0 20px}}
.mono{font-family:var(--mono)}

/* NAV */
header.nav{position:sticky;top:0;z-index:60;background:color-mix(in srgb,var(--paper) 88%,transparent);backdrop-filter:blur(8px);border-bottom:1px solid var(--rule)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:64px}
.brand{display:flex;align-items:center;gap:.65rem;text-decoration:none}
.brand img{height:22px;width:auto;display:block}
.brand .ko{font-family:var(--sans);font-size:.78rem;color:var(--faint);padding-left:.65rem;border-left:1px solid var(--rule)}
@media(max-width:520px){.brand .ko{display:none}}
.nav-links{display:flex;gap:1.8rem;align-items:center}
.nav-links a{font-family:var(--mono);font-size:.8rem;letter-spacing:.01em;color:var(--ink-2);text-decoration:none;padding-bottom:2px;border-bottom:1px solid transparent;transition:color .2s,border-color .2s}
.nav-links a:hover{color:var(--ink);border-color:var(--red)}
.nav-cta{font-family:var(--mono);font-size:.8rem;color:#fff !important;background:var(--navy);padding:.5rem 1rem;border-radius:2px;text-decoration:none;font-weight:600;border-bottom:none !important;transition:background .2s}
.nav-cta:hover{background:var(--navy-deep)}
@media(max-width:860px){.nav-links a:not(.nav-cta):not(.nav-lang){display:none}}

/* HERO */
.hero{position:relative;padding:0 0 30px}
.doc-head{display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;padding:16px 0 0;font-family:var(--mono);font-size:.74rem;letter-spacing:.06em;color:var(--faint);text-transform:uppercase}
.doc-head .r{color:var(--red)}
.doc-rule{height:1px;background:var(--ink);margin-top:10px}
.hero-grid{display:grid;grid-template-columns:1.02fr .98fr;gap:52px;align-items:center;padding:58px 0 44px}
@media(max-width:920px){.hero-grid{grid-template-columns:1fr;gap:38px;padding:42px 0 32px}}
.hero .kick{font-family:var(--mono);font-size:.82rem;letter-spacing:.04em;color:var(--red);text-transform:uppercase;margin-bottom:22px;font-weight:500}
.hero h1{font-size:clamp(2.2rem,4.9vw,3.4rem);line-height:1.16;font-weight:700}
.hero .lede{font-size:clamp(1.02rem,1.5vw,1.12rem);color:var(--ink-2);max-width:40ch;margin-top:26px}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:32px}
.btn{display:inline-flex;align-items:center;gap:.5em;font-family:var(--mono);font-size:.86rem;letter-spacing:.01em;font-weight:600;padding:.85rem 1.4rem;border-radius:2px;text-decoration:none;cursor:pointer;border:1px solid transparent;transition:background .2s,border-color .2s,color .2s}
.btn-primary{background:var(--navy);color:#fff}
.btn-primary:hover{background:var(--navy-deep)}
.btn-ghost{border-color:var(--ink);color:var(--ink);background:transparent}
.btn-ghost:hover{background:var(--ink);color:var(--paper)}

/* STAT BARS (clean, no vertical dividers) */
.readout,.pf-stats{display:grid;border-top:1px solid var(--ink);border-bottom:1px solid var(--rule)}
.readout{grid-template-columns:repeat(4,1fr);margin-top:8px}
.pf-stats{grid-template-columns:repeat(3,1fr)}
@media(max-width:640px){.readout{grid-template-columns:repeat(2,1fr);row-gap:2px}}
.readout>div,.pf-stats>div{padding:20px 26px 18px 0}
.readout .v,.pf-stats .v{font-family:var(--mono);font-size:1.28rem;font-weight:600;color:var(--ink);letter-spacing:-.01em}
.readout .v b,.pf-stats .v b{color:var(--red);font-weight:700}
.readout .l,.pf-stats .l{font-size:.82rem;color:var(--faint);margin-top:6px}

/* SCOPE */
.scope-wrap{position:relative}
.scope{background:linear-gradient(180deg,#12181b,#0a0e11);border-radius:10px;padding:15px 15px 12px;box-shadow:0 26px 50px -26px rgba(10,16,18,.55),0 2px 0 #fff inset,0 0 0 1px #05090b;position:relative}
.scope-head{display:flex;justify-content:space-between;align-items:center;padding:2px 4px 11px;font-family:var(--mono);font-size:.68rem;letter-spacing:.06em;color:#7b9096;text-transform:uppercase}
.scope-head .dot{width:6px;height:6px;border-radius:50%;background:var(--red-trace);display:inline-block;margin-right:.5em;box-shadow:0 0 8px var(--red-trace);animation:blink 2s infinite}
@keyframes blink{0%,100%{opacity:1}50%{opacity:.3}}
.scope svg.wave{display:block;width:100%;height:auto;border-radius:3px}
.scope-cap{font-family:var(--mono);font-size:.67rem;color:#7b9096;letter-spacing:.03em;padding:11px 4px 2px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:6px}
.scope-cap .red{color:var(--red-trace)}.scope-cap .cyan{color:var(--cyan)}
.scope-tag{position:absolute;top:-11px;right:16px;background:var(--red);color:#fff;font-family:var(--mono);font-size:.66rem;letter-spacing:.1em;text-transform:uppercase;padding:.32em .62em;border-radius:2px;font-weight:600}

/* SECTION */
.section{padding:78px 0}
.section+.section{padding-top:0}
.sec-head{display:flex;justify-content:space-between;align-items:baseline;gap:16px;border-top:1px solid var(--ink);padding-top:16px;margin-bottom:40px}
.sec-head .kick{font-family:var(--mono);font-size:.82rem;letter-spacing:.05em;text-transform:uppercase;color:var(--red);font-weight:600}
.sec-head .ref{font-family:var(--mono);font-size:.76rem;letter-spacing:.08em;text-transform:uppercase;color:var(--faint)}
.sec-title{margin-bottom:6px}
.sec-title h2{font-size:clamp(1.7rem,3.2vw,2.3rem);font-weight:700;text-wrap:balance}
.sec-title p{color:var(--ink-2);font-size:1.04rem;margin-top:14px;text-wrap:balance}

/* about */
.about-grid{display:grid;grid-template-columns:1.12fr .88fr;gap:52px;align-items:start}
@media(max-width:840px){.about-grid{grid-template-columns:1fr;gap:34px}}
.about-body p+p{margin-top:1.15em}
.about-body strong{font-weight:600}
.about-body .em{color:var(--red);font-weight:600}
.idcard{border:1px solid var(--rule);background:var(--panel)}
.idcard .cap, .namenote .cap{font-family:var(--mono);font-size:.72rem;letter-spacing:.08em;text-transform:uppercase;color:var(--faint);padding:13px 20px;border-bottom:1px solid var(--rule);background:var(--paper-2)}
.idcard .row{display:flex;justify-content:space-between;gap:16px;padding:13px 20px;border-bottom:1px solid var(--rule-2)}
.idcard .row:last-child{border-bottom:none}
.idcard .t{font-size:.82rem;color:var(--faint);white-space:nowrap;padding-top:2px}
.idcard .val{text-align:right;font-size:.94rem;color:var(--ink)}
.idcard .val small{display:block;color:var(--ink-2);font-size:.82rem;margin-top:1px}
.idcard .val small.code{font-family:var(--mono)}

/* name note — 사명 의미 설명 블록 (히어로 하단, 강조 콜아웃) */
.namenote{border:1px solid var(--rule);border-left:3px solid var(--red);background:var(--panel)}
.namenote .cap{color:var(--red)}
.namenote p{padding:20px 24px;margin:0;font-size:1.04rem;line-height:1.72;color:var(--ink)}
.namenote strong{font-weight:700}

/* capability */
.spectable{border:1px solid var(--ink);background:var(--panel)}
.spectable .r{display:grid;grid-template-columns:200px 1fr;border-top:1px solid var(--rule)}
.spectable .r:first-child{border-top:none}
@media(max-width:640px){.spectable .r{grid-template-columns:1fr}}
.spectable .cat{padding:16px 22px;font-family:var(--mono);font-size:.82rem;font-weight:600;color:var(--red);border-right:1px solid var(--rule);letter-spacing:.01em}
@media(max-width:640px){.spectable .cat{border-right:none;padding-bottom:2px}}
.spectable .val{padding:16px 22px;font-size:.96rem;color:var(--ink);line-height:1.72}
.spectable .r:nth-child(even){background:color-mix(in srgb,var(--red) 3%,transparent)}

/* services flow */
.flow{display:grid;grid-template-columns:repeat(6,1fr);gap:0}
@media(max-width:900px){.flow{grid-template-columns:repeat(3,1fr);row-gap:30px}}
@media(max-width:540px){.flow{grid-template-columns:repeat(2,1fr)}}
.step{padding:0 22px 0 0;position:relative}
.step::before{content:"";position:absolute;top:12px;left:0;right:14px;height:1px;background:var(--rule)}
.step .no{display:inline-flex;align-items:center;justify-content:center;width:25px;height:25px;border-radius:50%;background:var(--paper);border:1px solid var(--ink);font-family:var(--mono);font-size:.74rem;font-weight:600;position:relative;z-index:1}
.step h3{font-size:1.02rem;margin:15px 0 8px;font-weight:600;letter-spacing:-.01em}
.step p{color:var(--ink-2);font-size:.88rem;line-height:1.6}

/* portfolio */
.pindex{border-top:1px solid var(--ink)}
.pblock{display:grid;grid-template-columns:220px 1fr;gap:24px;padding:26px 0;border-bottom:1px solid var(--rule)}
@media(max-width:720px){.pblock{grid-template-columns:1fr;gap:12px}}
.pblock .dom .tag{font-family:var(--mono);font-size:.74rem;letter-spacing:.06em;text-transform:uppercase;color:var(--red);font-weight:600}
.pblock .dom h3{font-size:1.1rem;margin-top:9px;font-weight:600}
.pblock ul{margin:0;padding:0;list-style:none}
.pblock li{display:flex;justify-content:space-between;gap:20px;padding:10px 0;border-top:1px dotted var(--rule);font-size:.96rem}
.pblock li:first-child{border-top:none}
.pblock li .nm b{font-weight:600}
.pblock li .fld{font-size:.86rem;color:var(--faint);white-space:nowrap;text-align:right;padding-top:1px}
@media(max-width:480px){.pblock li{flex-direction:column;gap:2px}.pblock li .fld{text-align:left}}
/* '더 보기' 토글 — public && !featured 프로젝트(현재 dormant, 큐레이션 시 노출). 클릭 요소이므로 네이비(액션 토큰). */
.pblock .pf-more{grid-column:2;justify-self:start;margin-top:12px;font-family:var(--mono);font-size:.8rem;font-weight:600;color:#fff;background:var(--navy);border:none;border-radius:2px;padding:.5rem 1rem;cursor:pointer;transition:background .2s}
.pblock .pf-more:hover{background:var(--navy-deep)}
.pblock .pf-extra{grid-column:2;margin-top:10px}
.pblock .pf-extra[hidden]{display:none}
@media(max-width:720px){.pblock .pf-more,.pblock .pf-extra{grid-column:1}}
.sectors{display:flex;flex-wrap:wrap;gap:10px;margin-top:28px}
.sectors span{font-size:.86rem;color:var(--ink-2);border:1px solid var(--rule);border-radius:2px;padding:.44em .85em;background:var(--panel)}
.pnote{font-size:.82rem;color:var(--faint);margin-top:16px}

/* open source */
.os-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
@media(max-width:840px){.os-grid{grid-template-columns:1fr}}
.os{border:1px solid var(--rule);background:var(--panel);padding:24px 24px 26px;display:flex;flex-direction:column;transition:border-color .2s,background .2s}
.os:hover{border-color:var(--ink);background:var(--paper-2)}
.os-top{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:16px}
.os-repo{font-family:var(--mono);font-size:.84rem;color:var(--red);display:flex;align-items:center;gap:.5em;font-weight:500}
.os-repo svg{width:15px;height:15px;flex:none}
a.os-repo{text-decoration:none}
a.os-repo:hover{text-decoration:underline}
.badge{font-family:var(--mono);font-size:.66rem;letter-spacing:.08em;text-transform:uppercase;color:var(--red);border:1px solid var(--red);border-radius:2px;padding:.32em .55em;white-space:nowrap;font-weight:500}
.os h3{font-size:1.08rem;margin:0 0 9px;font-weight:600}
.os p{color:var(--ink-2);font-size:.92rem;line-height:1.64;flex:1}
.os-tags{display:flex;flex-wrap:wrap;gap:7px;margin-top:18px}
.os-tags span{font-family:var(--mono);font-size:.74rem;color:var(--faint);border:1px solid var(--rule);border-radius:2px;padding:.26em .6em}
.os-foot{font-size:.86rem;color:var(--faint);margin-top:26px}
.os-foot b{color:var(--ink-2);font-weight:600}

/* contact */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:46px;align-items:start}
@media(max-width:860px){.contact-grid{grid-template-columns:1fr;gap:36px}}
.form{border:1px solid var(--ink);background:var(--panel);padding:32px 30px}
.form h3{font-size:1.18rem;margin-bottom:6px;font-weight:600}
.form .sub{color:var(--ink-2);font-size:.94rem;margin-bottom:24px}
.field{margin-bottom:16px}
.field label{display:block;font-family:var(--mono);font-size:.74rem;letter-spacing:.04em;text-transform:uppercase;color:var(--faint);margin-bottom:8px}
.field label .req{color:var(--red)}
.field input,.field select,.field textarea{width:100%;background:var(--paper-2);border:1px solid var(--rule);border-radius:2px;color:var(--ink);font-family:var(--sans);font-size:.97rem;padding:.72rem .85rem;transition:border-color .2s,box-shadow .2s}
.field textarea{resize:vertical;min-height:120px;line-height:1.55}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--red);box-shadow:0 0 0 3px color-mix(in srgb,var(--red) 15%,transparent)}
.field.two{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-bottom:16px}
.field.two .field{margin-bottom:0}
@media(max-width:480px){.field.two{grid-template-columns:1fr}}
.filebox{display:flex;align-items:center;gap:12px;flex-wrap:wrap}
.filebox label.pick{display:inline-flex;align-items:center;gap:.5em;cursor:pointer;font-family:var(--mono);font-size:.82rem;color:var(--ink);background:var(--paper-2);border:1px dashed var(--rule);border-radius:2px;padding:.62rem .95rem;transition:border-color .2s,color .2s;margin:0;letter-spacing:0;text-transform:none}
.filebox label.pick:hover{border-color:var(--red);color:var(--red)}
.filebox .fname{font-family:var(--mono);font-size:.82rem;color:var(--ink-2)}
.filehint{font-family:var(--mono);font-size:.74rem;color:var(--faint);margin-top:9px}
.form-actions{margin-top:24px}
.form-actions .btn{width:100%;justify-content:center}
.alt-actions{display:flex;gap:18px;margin-top:14px;flex-wrap:wrap}
.alt-actions a{font-family:var(--mono);font-size:.8rem;color:var(--ink-2);text-decoration:none;border-bottom:1px solid var(--rule);cursor:pointer}
.alt-actions a:hover{color:var(--red);border-color:var(--red)}
.form-msg{font-family:var(--mono);font-size:.82rem;margin-top:14px;min-height:1.2em}
.form-msg.err{color:var(--red)}
.form-msg.ok{color:var(--red-deep)}
.hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}
.info-list a,.info-list .ln{display:flex;align-items:baseline;gap:16px;text-decoration:none;padding:16px 2px;border-top:1px solid var(--rule);transition:color .2s}
.info-list a:hover{color:var(--red)}
.info-list .k{font-family:var(--mono);font-size:.74rem;letter-spacing:.04em;text-transform:uppercase;color:var(--faint);width:70px;flex:none;padding-top:2px}
.info-list .v{font-size:1rem}
.info-list .v small{display:block;color:var(--ink-2);font-size:.84rem;margin-top:2px}

/* footer */
footer{border-top:1px solid var(--ink);padding:30px 0 42px;margin-top:30px}
.foot-inner{display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;align-items:flex-end}
.foot-brand img{height:24px;display:block}
.foot-brand .tl{font-size:.82rem;color:var(--faint);margin-top:12px}
.foot-meta{font-family:var(--mono);font-size:.76rem;color:var(--faint);line-height:1.85;text-align:right}
@media(max-width:560px){.foot-meta{text-align:left}}

.reveal{opacity:0;transform:translateY(14px);transition:opacity .65s ease,transform .65s cubic-bezier(.2,.7,.2,1)}
.reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none;transition:none}}
::selection{background:var(--red);color:#fff}
:focus-visible{outline:2px solid var(--red);outline-offset:2px}

/* language toggle */
.nav-links .nav-lang{font-family:var(--mono);font-size:.8rem;color:var(--ink-2);text-decoration:none;border:1px solid var(--faint);border-radius:2px;padding:.34rem .62rem;transition:border-color .2s,color .2s}
.nav-lang:hover{border-color:var(--red);color:var(--red)}