:root{
  --bg:#fffaf6;--bg-2:#fbf3ec;--surface:#ffffff;
  --ink:#1d1719;--ink-2:#3d3437;--muted:#6a5f63;--faint:#8f8488;
  --line:#efe4dc;--line-2:#e6d8ce;
  --accent:#e2574c;--accent-ink:#b93d32;--accent-soft:#fdeee9;--accent-2:#f29a6e;
  --ok:#2f7a5b;--ok-soft:#e8f4ee;
  --radius-sm:10px;--radius:16px;--radius-lg:24px;
  --shadow-sm:0 1px 2px rgba(45,25,20,.05),0 2px 6px rgba(45,25,20,.04);
  --shadow:0 2px 4px rgba(45,25,20,.04),0 12px 32px rgba(45,25,20,.08);
  --shadow-lg:0 4px 8px rgba(45,25,20,.05),0 30px 60px -12px rgba(80,35,25,.22);
  --s1:4px;--s2:8px;--s3:12px;--s4:16px;--s5:24px;--s6:32px;--s7:48px;--s8:64px;--s9:96px;
  --font:"Pretendard Variable",Pretendard,-apple-system,BlinkMacSystemFont,"Apple SD Gothic Neo","Segoe UI","Noto Sans KR","Malgun Gothic",Roboto,"Helvetica Neue",Arial,sans-serif;
  --mono:ui-monospace,SFMono-Regular,Menlo,Consolas,"Liberation Mono",monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:80px}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--font);font-size:16px;line-height:1.65;
  -webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;font-feature-settings:"ss01","tnum" 0;overflow-x:hidden}
:lang(ko),[lang="ko"]{word-break:keep-all;overflow-wrap:break-word}
img,svg{display:block;max-width:100%}
a{color:var(--accent-ink);text-decoration:none}
a:hover{text-decoration:underline;text-underline-offset:3px}
h1,h2,h3,h4{text-wrap:balance;margin:0;color:var(--ink);line-height:1.2;letter-spacing:-.02em;font-weight:700}
p{margin:0}
code{font-family:var(--mono);font-size:.86em;background:var(--bg-2);border:1px solid var(--line);border-radius:6px;padding:.08em .4em;color:var(--ink-2)}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px}
.skip{position:absolute;left:-9999px;top:0}
.skip:focus{left:16px;top:12px;z-index:100;background:#fff;padding:8px 14px;border-radius:8px;box-shadow:var(--shadow)}
.container{width:100%;max-width:1160px;margin:0 auto;padding:0 24px}
.narrow{max-width:760px}

/* header */
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,250,246,.86);backdrop-filter:saturate(1.4) blur(12px);-webkit-backdrop-filter:saturate(1.4) blur(12px);border-bottom:1px solid rgba(230,216,206,.7)}
.nav{display:flex;align-items:center;gap:var(--s5);height:64px}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--ink);font-weight:700;letter-spacing:-.02em;font-size:17px}
.brand:hover{text-decoration:none}
.brand svg{width:30px;height:30px;flex:none}
.brand .ko{font-weight:500;color:var(--faint);font-size:14px;margin-left:2px}
.nav-links{display:flex;gap:4px;list-style:none;margin:0 0 0 auto;padding:0}
.nav-links a{display:block;padding:8px 12px;border-radius:8px;color:var(--ink-2);font-size:15px;font-weight:500}
.nav-links a:hover{background:var(--bg-2);text-decoration:none;color:var(--ink)}
.nav-links a[aria-current="page"]{color:var(--ink);background:var(--bg-2)}
.menu{display:none;margin-left:auto;position:relative}
.menu summary{list-style:none;cursor:pointer;width:40px;height:40px;border-radius:10px;display:grid;place-items:center;border:1px solid var(--line-2);background:#fff}
.menu summary::-webkit-details-marker{display:none}
.menu summary span,.menu summary span::before,.menu summary span::after{display:block;width:16px;height:1.6px;background:var(--ink);border-radius:2px;position:relative;content:""}
.menu summary span::before{position:absolute;top:-5px}.menu summary span::after{position:absolute;top:5px}
.menu[open] summary{background:var(--bg-2)}
.menu ul{position:absolute;right:0;top:48px;list-style:none;margin:0;padding:8px;background:#fff;border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow);min-width:200px}
.menu li a{display:block;padding:10px 12px;border-radius:8px;color:var(--ink-2);font-weight:500}
.menu li a:hover,.menu li a[aria-current="page"]{background:var(--bg-2);text-decoration:none;color:var(--ink)}

/* buttons, badges */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:44px;padding:0 20px;border-radius:999px;font-weight:600;font-size:15px;letter-spacing:-.01em;border:1px solid transparent;transition:background .15s,border-color .15s,transform .15s;white-space:nowrap}
.btn:hover{text-decoration:none}
.btn-primary{background:var(--ink);color:#fff}
.btn-primary:hover{background:#000}
.btn-accent{background:var(--accent);color:#fff}
.btn-accent:hover{background:var(--accent-ink)}
.btn-ghost{background:#fff;color:var(--ink);border-color:var(--line-2)}
.btn-ghost:hover{border-color:var(--faint)}
.btn-sm{height:36px;padding:0 16px;font-size:14px}
.badge{display:inline-flex;align-items:center;gap:7px;height:30px;padding:0 12px;border-radius:999px;font-size:13px;font-weight:600;letter-spacing:-.005em;background:#fff;border:1px solid var(--line-2);color:var(--ink-2);white-space:nowrap}
.badge .dot{width:7px;height:7px;border-radius:50%;background:var(--accent-2);box-shadow:0 0 0 3px rgba(242,154,110,.2)}
.badge-claude{background:var(--accent-soft);border-color:#f6d3c8;color:var(--accent-ink)}
.badge-claude svg{width:14px;height:14px}
.eyebrow{display:inline-block;font-size:13px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--accent-ink);margin-bottom:var(--s3)}
.tag{display:inline-block;font-size:12px;font-weight:600;padding:3px 9px;border-radius:999px;background:var(--bg-2);color:var(--muted);border:1px solid var(--line)}
.tag-planned{background:#fff;border-style:dashed;border-color:var(--line-2)}
.tag-now{background:var(--ok-soft);color:var(--ok);border-color:#cfe6da}

/* sections */
section{padding:var(--s9) 0}
.section-alt{background:var(--surface);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{max-width:680px;margin-bottom:var(--s7)}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.section-head h2{font-size:clamp(28px,3.4vw,40px);letter-spacing:-.03em;line-height:1.15}
.section-head p{margin-top:var(--s4);color:var(--muted);font-size:17px}
.section-head .ko{margin-top:var(--s2);font-size:15px;color:var(--faint)}
.grid{display:grid;gap:var(--s5)}
.g2{grid-template-columns:repeat(2,minmax(0,1fr))}
.g3{grid-template-columns:repeat(3,minmax(0,1fr))}
.g4{grid-template-columns:repeat(4,minmax(0,1fr))}
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:var(--s5) var(--s5) 28px;box-shadow:var(--shadow-sm)}
.section-alt .card{background:var(--bg)}
.card h3{font-size:18px;margin-bottom:var(--s2)}
.card p{color:var(--muted);font-size:15px}
.card .ko{margin-top:var(--s2);font-size:14px;color:var(--faint)}
.icon{width:40px;height:40px;border-radius:12px;display:grid;place-items:center;background:var(--accent-soft);color:var(--accent-ink);margin-bottom:var(--s4)}
.icon svg{width:20px;height:20px}

/* hero */
.hero{padding:72px 0 var(--s8);position:relative;overflow:hidden}
.hero::before{content:"";position:absolute;inset:-200px -10% auto auto;width:780px;height:640px;background:radial-gradient(closest-side,rgba(242,154,110,.22),rgba(242,154,110,0));pointer-events:none}
.hero::after{content:"";position:absolute;left:-220px;bottom:-260px;width:620px;height:560px;background:radial-gradient(closest-side,rgba(226,87,76,.08),rgba(226,87,76,0));pointer-events:none}
.hero-grid{position:relative;z-index:1;display:grid;grid-template-columns:minmax(0,.92fr) minmax(0,1.08fr);gap:var(--s8);align-items:center}
.badges{display:flex;flex-wrap:wrap;gap:var(--s2);margin-bottom:var(--s5)}
.hero h1{font-size:clamp(38px,5.2vw,62px);line-height:1.06;letter-spacing:-.04em;font-weight:800}
.hero h1 .accent{color:var(--accent)}
.hero .ko-title{margin-top:var(--s4);font-size:clamp(18px,2vw,22px);font-weight:600;color:var(--ink-2);letter-spacing:-.02em}
.hero .lead{margin-top:var(--s5);font-size:18px;line-height:1.7;color:var(--muted);max-width:560px}
.cta-row{display:flex;flex-wrap:wrap;gap:var(--s3);margin-top:var(--s6)}
.hero-note{margin-top:var(--s5);font-size:13.5px;color:var(--faint);display:flex;flex-wrap:wrap;gap:6px 14px}
.hero-note span{display:inline-flex;align-items:center;gap:6px}
.hero-note span::before{content:"";width:7px;height:4px;border-left:1.6px solid var(--accent);border-bottom:1.6px solid var(--accent);transform:rotate(-45deg) translateY(-2px);margin-right:3px}

/* facts strip */
.facts-strip{padding:0 0 var(--s8)}
.facts-strip .row{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));border:1px solid var(--line);border-radius:var(--radius);background:var(--surface);box-shadow:var(--shadow-sm)}
.facts-strip .item{padding:20px 24px}
.facts-strip .item+.item{border-left:1px solid var(--line)}
.facts-strip dt{font-size:12px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:var(--faint)}
.facts-strip dd{margin:6px 0 0;font-size:15px;font-weight:600;color:var(--ink);line-height:1.45}
.facts-strip dd small{display:block;font-weight:500;color:var(--muted);font-size:13.5px}

/* mockup */
.mock{margin:0;position:relative;display:flex;flex-direction:column;align-items:center}
.mock-label [lang="ko"]{white-space:nowrap}
.mock-label{display:inline-flex;align-items:center;gap:8px;font-size:12.5px;font-weight:600;color:var(--ink-2);background:#fff;border:1px dashed var(--faint);border-radius:999px;padding:6px 14px;margin-bottom:var(--s5)}
.mock-label svg{flex:none;width:14px;height:14px;color:var(--accent-ink)}
.stage{position:relative;width:100%;max-width:568px;display:flex;justify-content:flex-start}
.phone{position:relative;width:312px;flex:none;background:#1b1517;border-radius:46px;padding:10px;box-shadow:var(--shadow-lg)}
.screen{background:var(--bg);border-radius:37px;overflow:hidden;height:620px;display:flex;flex-direction:column}
.sbar{display:flex;justify-content:space-between;align-items:center;padding:14px 26px 6px;font-size:12px;font-weight:600;color:var(--ink)}
.sbar .island{width:84px;height:24px;border-radius:20px;background:#1b1517}
.sbar .sig{display:flex;gap:3px;align-items:flex-end}
.sbar .sig i{display:block;width:3px;background:var(--ink);border-radius:1px}
.app-bar{display:flex;align-items:center;gap:10px;padding:8px 16px 12px;border-bottom:1px solid var(--line)}
.app-bar svg{width:26px;height:26px}
.app-bar b{font-size:14px;display:block;line-height:1.2}
.app-bar small{font-size:11px;color:var(--faint);display:block}
.chat{padding:12px 14px 0;display:flex;flex-direction:column;gap:8px}
.bubble{max-width:86%;font-size:12px;line-height:1.5;padding:9px 12px;border-radius:16px}
.bubble.me{align-self:flex-end;background:var(--ink);color:#fff;border-bottom-right-radius:5px}
.bubble.ai{align-self:flex-start;background:#fff;border:1px solid var(--line);color:var(--ink-2);border-bottom-left-radius:5px}
.course-card{margin:10px 14px 0;background:#fff;border:1px solid var(--line);border-radius:18px;padding:12px 12px 6px;box-shadow:var(--shadow-sm)}
.course-head{display:flex;justify-content:space-between;align-items:baseline;margin-bottom:6px}
.course-head b{font-size:12.5px}
.course-head span{font-size:10.5px;color:var(--muted);font-weight:600}
.timeline{list-style:none;margin:0;padding:0}
.timeline li{display:grid;grid-template-columns:38px 14px 1fr auto;align-items:center;gap:8px;padding:8px 0;position:relative}
.timeline li+li{border-top:1px solid #f6efe9}
.timeline .t{font-size:11px;font-weight:700;color:var(--ink-2);font-variant-numeric:tabular-nums}
.timeline .pin{width:10px;height:10px;border-radius:50%;border:2px solid var(--accent);background:#fff;justify-self:center}
.timeline li.sel .pin{background:var(--accent)}
.timeline .n{display:block;font-size:12px;font-weight:600;color:var(--ink);line-height:1.3}
.timeline .c{display:block;font-size:10.5px;color:var(--muted);line-height:1.35}
.swap{font-size:10.5px;font-weight:600;color:var(--accent-ink);background:var(--accent-soft);border-radius:999px;padding:4px 9px;white-space:nowrap}
.timeline li.sel{background:linear-gradient(90deg,rgba(253,238,233,0),rgba(253,238,233,.9) 30%,rgba(253,238,233,.9));margin:0 -12px;padding-left:12px;padding-right:12px}
.composer{margin:auto 14px 16px;display:flex;align-items:center;gap:8px;background:#fff;border:1px solid var(--line-2);border-radius:999px;padding:6px 6px 6px 14px;font-size:11.5px;color:var(--faint)}
.composer i{margin-left:auto;width:26px;height:26px;border-radius:50%;background:var(--accent);display:grid;place-items:center}
.composer i svg{width:12px;height:12px;color:#fff}
.cand{position:absolute;right:0;bottom:56px;width:244px;background:#fff;border:1px solid var(--line);border-radius:20px;padding:16px;box-shadow:var(--shadow-lg)}
.cand-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:10px}
.cand-top .k{font-size:10.5px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:var(--faint)}
.cand-photo{height:72px;border-radius:12px;background:linear-gradient(135deg,#f9d9c8,#f4b49a 55%,#e98e7a);margin-bottom:12px;position:relative}
.cand-photo span{position:absolute;left:8px;bottom:8px;font-size:9.5px;font-weight:600;color:#7a3a2c;background:rgba(255,255,255,.8);border-radius:6px;padding:2px 6px}
.cand h4{font-size:15px;letter-spacing:-.01em}
.cand .meta{font-size:11.5px;color:var(--muted);margin-top:2px}
.stars{display:inline-flex;align-items:center;gap:4px;font-size:11.5px;font-weight:700;color:var(--ink)}
.stars i{font-style:normal;color:#e9a23b;letter-spacing:1px}
.stars small{font-weight:500;color:var(--faint)}
.menu-list{list-style:none;margin:10px 0;padding:10px 0 0;border-top:1px solid var(--line)}
.menu-list li{display:flex;justify-content:space-between;font-size:12px;padding:3px 0;color:var(--ink-2)}
.menu-list li span:last-child{font-variant-numeric:tabular-nums;font-weight:600;color:var(--ink)}
.review{background:var(--bg);border-radius:10px;padding:9px 10px;font-size:11.5px;color:var(--muted);line-height:1.5}
.review b{color:var(--ink-2);font-weight:600}
.cand .btn-row{display:flex;gap:6px;margin-top:10px}
.cand .btn-row span{flex:1;text-align:center;font-size:11.5px;font-weight:600;border-radius:999px;padding:7px 0}
.cand .btn-row .pri{background:var(--ink);color:#fff}
.cand .btn-row .sec{border:1px solid var(--line-2);color:var(--ink-2)}
.mock-foot{margin-top:var(--s5);font-size:12.5px;color:var(--faint);text-align:center;max-width:420px}

/* steps */
.steps{counter-reset:s}
.step{position:relative}
.step .num{display:inline-grid;place-items:center;width:32px;height:32px;border-radius:50%;background:var(--ink);color:#fff;font-size:14px;font-weight:700;margin-bottom:var(--s4)}
.step h3{font-size:19px}
.step .example{margin-top:var(--s4);font-size:13.5px;color:var(--ink-2);background:var(--bg-2);border-radius:10px;padding:10px 12px;border:1px solid var(--line)}

/* architecture diagram */
.arch{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);padding:var(--s6);box-shadow:var(--shadow-sm)}
.section-alt .arch{background:var(--bg)}
.flow-label{font-size:12px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:var(--faint);margin-bottom:var(--s3)}
.flow{display:flex;align-items:stretch;gap:0}
.flow+.flow-label{margin-top:var(--s6)}
.node{flex:1 1 0;min-width:0;background:#fff;border:1px solid var(--line-2);border-radius:14px;padding:14px 16px}
.node b{display:block;font-size:14.5px;letter-spacing:-.01em}
.node span{display:block;font-size:12.5px;color:var(--muted);line-height:1.5;margin-top:4px}
.node.claude{border-color:#f0b9aa;background:var(--accent-soft)}
.node.claude b{color:var(--accent-ink)}
.node.planned{border-style:dashed;background:transparent}
.arrow{flex:0 0 36px;display:grid;place-items:center;color:var(--accent)}
.arrow svg{width:20px;height:20px}
.arrow.both svg{width:24px}
.rule{margin-top:var(--s6);display:flex;gap:12px;align-items:flex-start;padding:14px 16px;border-radius:12px;background:var(--bg-2);border:1px solid var(--line);font-size:14px;color:var(--ink-2)}
.rule svg{width:18px;height:18px;flex:none;margin-top:2px;color:var(--ok)}
.legend{display:flex;gap:18px;flex-wrap:wrap;margin-top:var(--s4);font-size:12.5px;color:var(--faint)}
.legend span{display:inline-flex;align-items:center;gap:6px}
.legend i{display:inline-block;width:18px;height:12px;border-radius:4px;border:1px solid var(--line-2);background:#fff}
.legend i.d{border-style:dashed;background:transparent}
.legend i.c{border-color:#f0b9aa;background:var(--accent-soft)}
.tech-list{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:var(--s5);margin-top:var(--s7)}
.tech-list .item h3{font-size:16px;margin-bottom:6px;display:flex;align-items:center;gap:8px}
.tech-list .item p{font-size:14.5px;color:var(--muted)}

/* roadmap */
.roadmap{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:var(--s5);position:relative}
.phase{position:relative;padding-top:28px}
.phase::before{content:"";position:absolute;top:6px;left:0;right:calc(-1 * var(--s5));height:2px;background:var(--line-2)}
.phase:last-child::before{right:0}
.phase::after{content:"";position:absolute;top:0;left:0;width:14px;height:14px;border-radius:50%;background:#fff;border:2px solid var(--line-2)}
.phase.now::after{border-color:var(--accent);background:var(--accent);box-shadow:0 0 0 4px rgba(226,87,76,.15)}
.phase .tag{margin-bottom:10px}
.phase h3{font-size:17px;margin-bottom:6px}
.phase p{font-size:14.5px;color:var(--muted)}
.disclaimer{margin-top:var(--s6);font-size:13.5px;color:var(--faint)}

/* company */
.company{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,.9fr);gap:var(--s6);align-items:start}
.dl{margin:0;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
.section-alt .dl{background:var(--bg)}
.dl div{display:grid;grid-template-columns:230px 1fr;gap:var(--s4);padding:13px 20px;font-size:14.5px}
.dl div+div{border-top:1px solid var(--line)}
.dl dt{color:var(--muted);font-weight:500;font-size:14px}
.dl dd{margin:0;color:var(--ink);font-weight:500;overflow-wrap:anywhere}
.person{display:flex;gap:16px;align-items:flex-start}
.avatar{flex:none;width:48px;height:48px;border-radius:50%;display:grid;place-items:center;background:var(--accent-soft);color:var(--accent-ink);font-weight:700;font-size:17px}
.person h3{font-size:17px;margin-bottom:2px}
.person .role{font-size:13.5px;font-weight:600;color:var(--accent-ink);margin-bottom:6px}
.stack{display:flex;flex-direction:column;gap:var(--s4)}

/* faq */
.faq{max-width:820px;margin:0 auto}
.faq details{border-bottom:1px solid var(--line)}
.faq details:first-child{border-top:1px solid var(--line)}
.faq summary{list-style:none;cursor:pointer;display:flex;justify-content:space-between;align-items:center;gap:16px;padding:20px 4px;font-weight:600;font-size:17px;letter-spacing:-.01em}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"";flex:none;width:10px;height:10px;border-right:2px solid var(--faint);border-bottom:2px solid var(--faint);transform:rotate(45deg) translate(-3px,-3px);transition:transform .2s}
.faq details[open] summary::after{transform:rotate(-135deg) translate(-3px,-3px)}
.faq .a{padding:0 4px 22px;color:var(--muted);font-size:15.5px;max-width:720px}
.faq .a p+p{margin-top:8px}

/* cta */
.cta-box{background:var(--ink);color:#fff;border-radius:var(--radius-lg);padding:56px var(--s7);display:flex;justify-content:space-between;align-items:center;gap:var(--s6);position:relative;overflow:hidden}
.cta-box::after{content:"";position:absolute;right:-120px;top:-160px;width:420px;height:420px;background:radial-gradient(closest-side,rgba(242,154,110,.35),rgba(242,154,110,0));pointer-events:none}
.cta-box h2{color:#fff;font-size:clamp(24px,2.8vw,32px);letter-spacing:-.03em}
.cta-box p{color:#cfc3c6;margin-top:8px;max-width:560px}
.cta-box .btn{position:relative;z-index:1;background:#fff;color:var(--ink)}
.cta-box .btn:hover{background:var(--accent-soft)}
.cta-box .mail{display:block;margin-top:10px;font-size:14px;color:#efe5e7;position:relative;z-index:1;text-align:center}

/* page hero + prose */
.page-hero{padding-top:72px;padding-bottom:var(--s7)}
.page-hero h1{font-size:clamp(34px,4.4vw,50px);letter-spacing:-.035em;line-height:1.1;margin-top:var(--s4)}
.page-hero p{margin-top:var(--s4);color:var(--muted);font-size:18px;max-width:720px}
.page-hero .ko{font-size:15px;color:var(--faint);margin-top:var(--s2)}
.prose{max-width:760px}
.prose h2{font-size:22px;margin:var(--s7) 0 var(--s3);letter-spacing:-.02em}
.prose h2:first-child{margin-top:0}
.prose p,.prose li{color:var(--ink-2);font-size:16px}
.prose p+p{margin-top:var(--s3)}
.prose ul,.prose ol{padding-left:22px;margin:var(--s3) 0}
.prose li+li{margin-top:6px}
.table-wrap{overflow-x:auto;margin:var(--s4) 0;border:1px solid var(--line);border-radius:var(--radius-sm);background:#fff}
.table-wrap table{border-collapse:collapse;width:100%;min-width:560px;font-size:14.5px}
.table-wrap th,.table-wrap td{text-align:left;vertical-align:top;padding:12px 14px;border-bottom:1px solid var(--line)}
.table-wrap tr:last-child td{border-bottom:0}
.table-wrap th{background:var(--bg-2);font-weight:600;color:var(--ink)}
.flow-steps{list-style:none;margin:0;padding:0;counter-reset:f;display:grid;gap:var(--s4)}
.flow-steps li{counter-increment:f;display:grid;grid-template-columns:40px 1fr;gap:var(--s4);background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:20px 24px}
.flow-steps li::before{content:counter(f);display:grid;place-items:center;width:32px;height:32px;border-radius:50%;background:var(--accent-soft);color:var(--accent-ink);font-weight:700;font-size:14px}
.flow-steps h3{font-size:17px;margin-bottom:4px}
.flow-steps p{color:var(--muted);font-size:15px}
.code{background:#1d1719;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-sm);min-width:0}
.code .bar{display:flex;align-items:center;gap:6px;padding:10px 14px;border-bottom:1px solid #352b2e;font-size:12px;color:#b8abaf;font-family:var(--mono)}
.code .bar i{width:9px;height:9px;border-radius:50%;background:#4a3d41}
.code .bar em{font-style:normal;margin-left:8px}
.code pre{margin:0;padding:16px 18px;overflow-x:auto;font-family:var(--mono);font-size:12.5px;line-height:1.65;color:#eee3e5}
.code .k{color:#f6a98a}.code .s{color:#bfe0c7}.code .m{color:#8f8286}
.notice{border:1px solid var(--line);background:var(--surface);border-radius:var(--radius);padding:20px 24px;color:var(--ink-2);font-size:15px}
.notice strong{color:var(--ink)}
.contact-mail{font-size:clamp(22px,3vw,30px);font-weight:700;letter-spacing:-.02em;color:var(--ink)}

/* footer */
.site-footer{background:var(--surface);border-top:1px solid var(--line);padding:var(--s8) 0 var(--s6);margin-top:0}
.foot-top{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:var(--s6)}
.foot-top p{color:var(--muted);font-size:14px;margin-top:var(--s3);max-width:340px}
.foot-top h4{font-size:13px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:var(--faint);margin-bottom:var(--s3)}
.foot-top ul{list-style:none;margin:0;padding:0}
.foot-top li{margin:7px 0;font-size:14.5px}
.foot-top li a{color:var(--ink-2)}
.foot-claude{margin-top:var(--s7);padding:14px 18px;border-radius:12px;background:var(--bg);border:1px solid var(--line);font-size:13.5px;color:var(--ink-2)}
.legal{margin-top:var(--s5);padding-top:var(--s5);border-top:1px solid var(--line);font-size:12.5px;line-height:1.75;color:var(--faint)}
.legal strong{color:var(--muted);font-weight:600}

/* responsive */
@media (max-width:1100px){
  .hero-grid{grid-template-columns:minmax(0,1fr);gap:var(--s7)}
  .hero .lead{max-width:640px}
  .stage{max-width:568px;margin:0 auto}
  .g4{grid-template-columns:repeat(2,minmax(0,1fr))}
  .roadmap{grid-template-columns:repeat(2,minmax(0,1fr));row-gap:var(--s6)}
  .phase:nth-child(2)::before{right:0}
  .tech-list{grid-template-columns:repeat(2,minmax(0,1fr))}
  .company{grid-template-columns:1fr}
}
@media (max-width:900px){
  .nav-links,.nav .btn{display:none}
  .menu{display:block}
  .facts-strip .row{grid-template-columns:repeat(2,minmax(0,1fr))}
  .facts-strip .item:nth-child(3){border-left:0}
  .facts-strip .item:nth-child(n+3){border-top:1px solid var(--line)}
  .g3{grid-template-columns:1fr}
  .flow{flex-direction:column}
  .arrow{flex-basis:30px;transform:rotate(90deg)}
  .foot-top{grid-template-columns:1fr 1fr}
  .foot-top>div:first-child{grid-column:1/-1}
  .cta-box{flex-direction:column;align-items:flex-start;padding:40px 28px}
}
@media (max-width:640px){
  body{font-size:15.5px}
  .container{padding:0 20px}
  section{padding:64px 0}
  .hero{padding:40px 0 48px}
  .hero .lead{font-size:16.5px}
  .section-head{margin-bottom:var(--s6)}
  .section-head p{font-size:16px}
  .g2,.g4,.tech-list,.roadmap{grid-template-columns:1fr}
  .roadmap{row-gap:28px}
  .phase{padding:0 0 0 32px}
  .phase::before{top:18px;bottom:-30px;left:6px;right:auto !important;width:2px;height:auto}
  .phase:last-child::before{display:none}
  .phase::after{top:4px}
  .feature{display:grid;grid-template-columns:40px 1fr;column-gap:16px;padding:20px}
  .feature .icon{grid-row:span 2;margin:0}
  .feature h3{margin-top:8px}
  .facts-strip .item{padding:16px}
  .facts-strip dd{font-size:14px}
  .facts-strip dd small{font-size:12.5px}
  .stage{padding-left:0;flex-direction:column;align-items:center}
  .cand{position:relative;right:auto;bottom:auto;width:calc(100% - 24px);max-width:296px;margin-top:-22px}
  .mock-label{font-size:11.5px;padding:6px 12px;gap:6px}
  .dl div{grid-template-columns:1fr;gap:2px;padding:12px 16px}
  .arch{padding:20px}
  .page-hero{padding-top:48px;padding-bottom:32px}
  .page-hero p{font-size:16.5px}
  .brand .ko{display:none}
  .cta-row .btn{flex:1 1 auto}
  .flow-steps li{grid-template-columns:1fr;gap:10px;padding:18px}
  .stack-sm table{min-width:0}
  .stack-sm tr.thead{display:none}
  .stack-sm table,.stack-sm tbody,.stack-sm tr,.stack-sm td{display:block;width:100%}
  .stack-sm tr{padding:14px 16px;border-bottom:1px solid var(--line)}
  .stack-sm tr:last-child{border-bottom:0}
  .stack-sm td{border:0;padding:3px 0}
  .stack-sm td::before{content:attr(data-label);display:block;font-size:12px;font-weight:700;letter-spacing:.04em;text-transform:uppercase;color:var(--faint)}
  .stack-sm td+td{margin-top:6px}
}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}