:root{
  --paper:#F4F4EE; --paper-2:#ECEEE4; --surface:#FFFFFF; --mist:#E4EBE1; --mist-soft:#EEF3EA;
  --ink:#1A1D19; --ink-soft:#454A42; --muted:#6A6F66; --muted-2:#7E837A;
  --line:#D9DCD0; --line-soft:#E6E8DE; --green:#2F5D3F; --green-ink:#27503A; --green-soft:#DCE9DC; --green-line:#B9CFB9;
  --deep:#1E3A2A; --on-deep:#EEF3EA; --on-deep-soft:#A9C3B0; --amber:#9A6A2A;
  --btn:#1E3A2A; --on-btn:#F4F5EF;
}
@media (prefers-color-scheme: dark){
  :root:not([data-theme="light"]){
    --paper:#121513; --paper-2:#171B18; --surface:#1C211D; --mist:#1F2A22; --mist-soft:#1B241E;
    --ink:#E9ECE5; --ink-soft:#C3C8BE; --muted:#949A90; --muted-2:#7F857B;
    --line:#2F362F; --line-soft:#262C27; --green:#8FC3A2; --green-ink:#A3D1B3; --green-soft:#1F3328; --green-line:#355542;
    --deep:#0F1F16; --on-deep:#EEF3EA; --on-deep-soft:#9DB8A6; --amber:#D9A65C;
    --btn:#E9ECE5; --on-btn:#121513;
  }
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--ink);word-break:keep-all;font-family:'IBM Plex Sans KR','Pretendard','Apple SD Gothic Neo','Malgun Gothic',sans-serif;font-size:16px;line-height:1.75;-webkit-text-size-adjust:100%}
h1,h2,h3,.serif{font-family:'Gowun Batang','Noto Serif KR',serif;margin:0;letter-spacing:-0.01em;text-wrap:balance}
h1{font-size:clamp(2.2rem,5.4vw,3.9rem);font-weight:700;line-height:1.2}
h2{font-size:clamp(1.7rem,3.6vw,2.5rem);font-weight:700;line-height:1.28}
h3{font-size:1.25rem;font-weight:700;line-height:1.4}
p{margin:0}
a{color:inherit}
.mono{font-family:'IBM Plex Mono','IBM Plex Sans KR',ui-monospace,monospace}
.wrap{width:min(1120px,100%);margin-inline:auto;padding:0 clamp(1.1rem,4vw,2.4rem)}
.narrow{width:min(820px,100%);margin-inline:auto;padding:0 clamp(1.1rem,4vw,2.4rem)}
.u{background:linear-gradient(transparent 66%,var(--green-soft) 66%)}
.eyebrow{font-size:.78rem;font-weight:600;letter-spacing:.14em;color:var(--green);text-transform:uppercase;font-family:'IBM Plex Mono','IBM Plex Sans KR',monospace;display:flex;align-items:center;gap:.6rem}
.eyebrow::before{content:"";width:18px;height:2px;background:var(--green)}
.lede{font-size:clamp(1.05rem,1.7vw,1.22rem);color:var(--ink-soft);max-width:46ch}
.small{font-size:.9rem;color:var(--muted)}
.btn{display:inline-flex;align-items:center;gap:.5rem;padding:.85rem 1.4rem;border-radius:8px;font-weight:600;text-decoration:none;font-size:.98rem;border:1px solid transparent;transition:transform .15s ease}
.btn:hover{transform:translateY(-1px)}
.btn.primary{background:var(--btn);color:var(--on-btn)}
.btn.ghost{background:transparent;color:var(--ink);border-color:var(--line)}
nav{position:sticky;top:0;z-index:10;background:color-mix(in srgb,var(--paper) 88%,transparent);backdrop-filter:blur(10px);border-bottom:1px solid var(--line-soft)}
nav .wrap{display:flex;align-items:center;justify-content:space-between;height:66px;gap:1rem}
.logo{font-family:'Gowun Batang',serif;font-size:1.4rem;font-weight:700;text-decoration:none;display:flex;align-items:baseline;gap:.6rem}
.logo i{display:inline-block;width:10px;height:10px;border-radius:3px;background:var(--green);transform:translateY(-2px)}
.logo small{font-family:'IBM Plex Mono',monospace;font-size:.7rem;color:var(--muted);letter-spacing:.1em;font-weight:400}
.links{display:flex;gap:1.5rem;align-items:center}
.links a{text-decoration:none;font-size:.93rem;color:var(--ink-soft)}
.links a.cta{background:var(--btn);color:var(--on-btn);padding:.55rem 1rem;border-radius:7px;font-weight:600}
@media(max-width:820px){.links a:not(.cta){display:none}}
section{padding:clamp(3.4rem,8vh,6rem) 0}
section.alt{background:var(--paper-2)}
section.mist{background:var(--mist-soft)}
.head{display:flex;flex-direction:column;gap:.8rem;margin-bottom:2.4rem;max-width:64ch}
.grid2{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:1.2rem}
.grid3{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:1.2rem}
.card{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:1.7rem 1.6rem;display:flex;flex-direction:column;gap:.8rem}
.card .tag{font-size:.74rem;letter-spacing:.12em;color:var(--muted);font-family:'IBM Plex Mono','IBM Plex Sans KR',monospace;text-transform:uppercase}
.card h3{font-size:1.4rem}
.card p{color:var(--ink-soft)}
.card ul{margin:.2rem 0 0;padding-left:1.1rem;color:var(--ink-soft);font-size:.93rem;display:flex;flex-direction:column;gap:.3rem}
.card .foot{margin-top:auto;padding-top:.8rem;border-top:1px dashed var(--line);font-size:.85rem;color:var(--muted)}
.pill{display:inline-block;padding:.15rem .6rem;border-radius:999px;font-size:.7rem;font-weight:600;letter-spacing:.04em}
.pill.live{background:var(--green-soft);color:var(--green-ink)}
.pill.pilot{background:var(--paper-2);color:var(--muted);border:1px solid var(--line)}
.pill.free{background:transparent;color:var(--green);border:1px solid var(--green-line)}
/* home hero */
.hero{padding:clamp(3.5rem,10vh,7rem) 0 clamp(3rem,7vh,5rem);background:radial-gradient(900px 420px at 85% 0%,var(--mist-soft),transparent 70%)}
.hero .wrap{display:flex;flex-direction:column;gap:1.6rem;align-items:flex-start}
.hero h1{max-width:20ch}
.hero-actions{display:flex;flex-wrap:wrap;gap:.7rem}
/* before/after */
.ba{display:grid;grid-template-columns:1fr auto 1fr;gap:1rem;align-items:stretch}
@media(max-width:760px){.ba{grid-template-columns:1fr}.ba .arrow{transform:rotate(90deg)}}
.ba .box{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:1.5rem 1.6rem;display:flex;flex-direction:column;gap:.6rem}
.ba .box.after{border-color:var(--green-line);background:var(--mist-soft)}
.ba .box .t{font-family:'IBM Plex Mono','IBM Plex Sans KR',monospace;font-size:.74rem;letter-spacing:.12em;color:var(--muted)}
.ba .box.after .t{color:var(--green)}
.ba .box b{font-family:'Gowun Batang',serif;font-size:1.25rem}
.ba .box ul{margin:0;padding-left:1.1rem;color:var(--ink-soft);font-size:.95rem;display:flex;flex-direction:column;gap:.3rem}
.ba .arrow{display:grid;place-items:center;font-size:1.6rem;color:var(--green)}
/* product tiles */
.tiles{display:grid;grid-template-columns:repeat(auto-fit,minmax(270px,1fr));gap:1.1rem}
.tile{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:1.5rem 1.5rem;display:flex;flex-direction:column;gap:.55rem;text-decoration:none;transition:transform .15s ease,border-color .15s ease}
.tile:hover{transform:translateY(-3px);border-color:var(--green-line)}
.tile .cat{font-family:'IBM Plex Mono','IBM Plex Sans KR',monospace;font-size:.7rem;letter-spacing:.12em;color:var(--green);display:flex;justify-content:space-between;align-items:center}
.tile h3{font-size:1.35rem}
.tile p{color:var(--ink-soft);font-size:.95rem}
.tile .who{font-size:.82rem;color:var(--muted);margin-top:auto;padding-top:.6rem;border-top:1px dashed var(--line)}
.tile .more{font-size:.85rem;color:var(--green);font-weight:600}
/* flow */
.flow{display:grid;grid-template-columns:repeat(auto-fit,minmax(190px,1fr));gap:1px;background:var(--line);border:1px solid var(--line);border-radius:14px;overflow:hidden;counter-reset:s}
.step{background:var(--surface);padding:1.5rem 1.3rem;display:flex;flex-direction:column;gap:.5rem}
.step::before{counter-increment:s;content:"0" counter(s);font-family:'IBM Plex Mono',monospace;font-size:.75rem;color:var(--green);font-weight:600;letter-spacing:.1em}
.step b{font-family:'Gowun Batang',serif;font-size:1.1rem}
.step p{font-size:.9rem;color:var(--ink-soft)}
.step.stop{background:var(--green-soft)}
/* stats */
.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:1px;background:var(--line);border:1px solid var(--line);border-radius:14px;overflow:hidden}
.stat{background:var(--surface);padding:1.4rem 1.3rem;display:flex;flex-direction:column;gap:.2rem;border-top:3px solid var(--green-soft)}
.stat .v{font-family:'Gowun Batang',serif;font-size:2rem;font-weight:700;line-height:1.1;color:var(--green-ink)}
.stat .k{font-weight:600;font-size:.9rem;color:var(--ink-soft)}
.stat .n{font-size:.8rem;color:var(--muted)}
/* table */
.tblwrap{overflow-x:auto;border:1px solid var(--line);border-radius:14px;background:var(--surface)}
table{border-collapse:collapse;width:100%;min-width:560px;font-size:.93rem}
th,td{padding:.95rem 1.1rem;text-align:left;border-bottom:1px solid var(--line-soft);vertical-align:top}
thead th{font-size:.76rem;letter-spacing:.08em;color:var(--green);font-weight:600;text-transform:uppercase;font-family:'IBM Plex Mono','IBM Plex Sans KR',monospace;background:var(--mist-soft)}
tbody tr:last-child td{border-bottom:0}
td.num{font-family:'IBM Plex Mono','IBM Plex Sans KR',monospace;white-space:nowrap;font-weight:600}
/* quote */
.quote{background:var(--deep);color:var(--on-deep);border-radius:16px;padding:clamp(2rem,5vw,3.4rem);display:grid;grid-template-columns:1.2fr .8fr;gap:2rem;align-items:center}
@media(max-width:820px){.quote{grid-template-columns:1fr}}
.quote h2{font-size:clamp(1.5rem,3vw,2.2rem);color:var(--on-deep)}
.quote p{color:var(--on-deep-soft);max-width:52ch}
.quote ul{margin:0;padding-left:1.1rem;color:var(--on-deep);display:flex;flex-direction:column;gap:.5rem;font-size:.95rem}
/* people */
.people{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:1.2rem}
.person{display:flex;gap:1.1rem;align-items:flex-start}
.avatar{width:58px;height:58px;border-radius:50%;background:var(--green-soft);display:grid;place-items:center;font-family:'Gowun Batang',serif;font-weight:700;font-size:1.3rem;color:var(--green-ink);flex:none}
.person b{font-family:'Gowun Batang',serif;font-size:1.15rem;display:block}
.person span{font-size:.8rem;color:var(--muted);font-family:'IBM Plex Mono','IBM Plex Sans KR',monospace}
.person p{font-size:.92rem;color:var(--ink-soft);margin-top:.4rem}
/* faq */
details{border-bottom:1px solid var(--line);padding:1rem 0}
details:first-of-type{border-top:1px solid var(--line)}
summary{cursor:pointer;font-family:'Gowun Batang',serif;font-size:1.1rem;font-weight:700;list-style:none;display:flex;justify-content:space-between;gap:1rem}
summary::after{content:"+";color:var(--green);font-family:'IBM Plex Mono',monospace}
details[open] summary::after{content:"–"}
details p{margin-top:.7rem;color:var(--ink-soft);max-width:70ch}
/* contact */
.contact{background:var(--surface);border:1px solid var(--green-line);border-radius:16px;padding:clamp(2rem,5vw,3.2rem);display:grid;grid-template-columns:1fr 1fr;gap:2rem;align-items:center}
@media(max-width:820px){.contact{grid-template-columns:1fr}}
.contact ol{margin:0;padding-left:1.2rem;color:var(--ink-soft);display:flex;flex-direction:column;gap:.4rem;font-size:.95rem}
footer{padding:2.6rem 0 3.5rem;border-top:1px solid var(--line-soft);font-size:.85rem;color:var(--muted)}
footer .wrap{display:flex;flex-wrap:wrap;justify-content:space-between;gap:1rem}
/* detail page */
.crumb{font-size:.85rem;color:var(--muted);display:flex;gap:.5rem;align-items:center;flex-wrap:wrap}
.crumb a{text-decoration:none}
.crumb a:hover{color:var(--green)}
.dhero{padding:clamp(2.6rem,7vh,4.5rem) 0 clamp(2rem,5vh,3rem);background:radial-gradient(800px 380px at 90% 0%,var(--mist-soft),transparent 70%)}
.dhero .wrap{display:flex;flex-direction:column;gap:1.2rem}
.dhero h1{font-size:clamp(2rem,4.6vw,3.3rem);max-width:22ch}
.dhero .sub{font-family:'IBM Plex Mono',monospace;font-size:.75rem;letter-spacing:.14em;color:var(--muted)}
.dsec{padding:clamp(2.4rem,6vh,4rem) 0;border-top:1px solid var(--line-soft)}
.dsec h2{font-size:clamp(1.4rem,2.8vw,1.9rem);margin-bottom:1.2rem}
.scene{background:var(--surface);border:1px solid var(--line);border-left:4px solid var(--green);border-radius:12px;padding:1.4rem 1.5rem;color:var(--ink-soft);display:flex;flex-direction:column;gap:.6rem}
.scene b{color:var(--ink)}
.io{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:1px;background:var(--line);border:1px solid var(--line);border-radius:14px;overflow:hidden}
.io div{background:var(--surface);padding:1.3rem 1.4rem}
.io div span{display:block;font-family:'IBM Plex Mono','IBM Plex Sans KR',monospace;font-size:.72rem;letter-spacing:.12em;color:var(--green);margin-bottom:.5rem}
.io ul{margin:0;padding-left:1.05rem;color:var(--ink-soft);font-size:.93rem;display:flex;flex-direction:column;gap:.3rem}
.checks{margin:0;padding:0;list-style:none;display:flex;flex-direction:column;gap:.6rem}
.checks li{padding-left:1.6rem;position:relative;color:var(--ink-soft)}
.checks li::before{content:"";position:absolute;left:0;top:.55rem;width:10px;height:10px;border-radius:3px;background:var(--green-soft);border:1.5px solid var(--green)}
.checks li b{color:var(--ink)}
.chips{display:flex;flex-wrap:wrap;gap:.4rem}
.chip{font-size:.82rem;padding:.3rem .7rem;border-radius:6px;background:var(--paper-2);border:1px solid var(--line-soft);color:var(--ink-soft)}
.chip.on{background:var(--green-soft);border-color:transparent;color:var(--green-ink);font-weight:600}
.cta-band{background:var(--deep);color:var(--on-deep);border-radius:16px;padding:clamp(1.8rem,4vw,2.6rem);display:flex;justify-content:space-between;align-items:center;gap:1.5rem;flex-wrap:wrap}
.cta-band h3{color:var(--on-deep);font-size:1.4rem}
.cta-band p{color:var(--on-deep-soft)}
.cta-band .btn.primary{background:var(--on-deep);color:var(--deep)}
.others{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:.8rem}
.others a{text-decoration:none;background:var(--surface);border:1px solid var(--line);border-radius:10px;padding:.9rem 1rem;display:flex;flex-direction:column;gap:.15rem}
.others a:hover{border-color:var(--green-line)}
.others a b{font-family:'Gowun Batang',serif}
.others a span{font-size:.8rem;color:var(--muted)}
@media(prefers-reduced-motion:no-preference){section,.hero,.dhero,.dsec{animation:rise .5s ease-out both}@keyframes rise{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}}

.summary{background:var(--surface);border:1px solid var(--green-line);border-radius:12px;padding:1.1rem 1.3rem;max-width:70ch}
.summary span{display:block;font-family:'IBM Plex Mono','IBM Plex Sans KR',monospace;font-size:.72rem;letter-spacing:.12em;color:var(--green);margin-bottom:.4rem}
.summary ol{margin:0;padding-left:1.2rem;color:var(--ink-soft);display:flex;flex-direction:column;gap:.25rem;font-size:.95rem}