:root{
  --paper:#F2F0E9;
  --paper-2:#E9E6DC;
  --line:#D6D2C4;
  --ink:#15181B;
  --ink-2:#3B4046;
  --ink-3:#6B7077;
  --night:#111417;
  --night-2:#191D21;
  --night-3:#22272C;
  --night-line:#2E343A;
  --c1:#1E8C5A;      /* 직접 변경 */
  --c1-soft:#D5EBDD;
  --c1-glow:#3CC487;
  --c2:#D2711C;      /* 문제 추적 */
  --c2-soft:#F6E0C8;
  --c2-glow:#F29A45;
  --c3:#3A5BA8;      /* 기록·AI */
  --c3-soft:#DCE3F3;
  --c3-glow:#7C9BE6;
  --sans:"Pretendard Variable",Pretendard,"Apple SD Gothic Neo","Noto Sans KR",sans-serif;
  --mono:"IBM Plex Mono",ui-monospace,monospace;
  --w:1280px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{animation:none!important;transition:none!important}}
body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--sans);font-size:17px;line-height:1.6;word-break:keep-all;-webkit-font-smoothing:antialiased}
a{color:inherit}
button{font-family:inherit;cursor:pointer}
:focus-visible{outline:2px solid var(--ink);outline-offset:3px;border-radius:4px}
.dark :focus-visible{outline-color:#fff}
.wrap{max-width:var(--w);margin:0 auto;padding:0 40px}
.mono{font-family:var(--mono)}
.tag{display:inline-flex;align-items:center;gap:8px;font-family:var(--mono);font-size:12px;letter-spacing:.04em;text-transform:none;padding:5px 10px;border:1px solid currentColor;border-radius:999px;line-height:1;white-space:nowrap}
.tag .dot{width:6px;height:6px;border-radius:50%;background:currentColor}
.tag.real{color:var(--c1)}
.tag.mock{color:var(--ink-3);border-style:dashed}
.dark .tag.mock{color:#9AA1A8}
.tag.goal{color:var(--c3)}
.dark .tag.goal{color:var(--c3-glow)}
.tag.ex{color:var(--ink-3)}

/* NAV */
.nav{position:sticky;top:0;z-index:50;background:color-mix(in oklab,var(--paper) 88%,transparent);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.nav .wrap{display:flex;align-items:center;height:64px;gap:28px}
.brand{display:flex;align-items:baseline;gap:10px;text-decoration:none}
.brand b{font-size:24px;font-weight:800;letter-spacing:-.04em}
.brand b i{font-style:normal;color:var(--c1)}
.brand span{font-family:var(--mono);font-size:11px;color:var(--ink-3);letter-spacing:.06em}
.nav ul{display:flex;gap:4px;list-style:none;margin:0 0 0 auto;padding:0}
.nav ul a{display:flex;align-items:center;gap:8px;text-decoration:none;font-size:14px;font-weight:500;color:var(--ink-2);padding:8px 12px;border-radius:8px}
.nav ul a:hover{background:var(--paper-2);color:var(--ink)}
.nav ul a em{font-style:normal;font-family:var(--mono);font-size:11px;width:20px;height:20px;border-radius:50%;display:grid;place-items:center;color:#fff}
.n1{background:var(--c1)}.n2{background:var(--c2)}.n3{background:var(--c3)}
.nav .cta{font-size:14px;font-weight:600;text-decoration:none;background:var(--ink);color:var(--paper);padding:9px 16px;border-radius:999px}

/* HERO */
.hero{padding:72px 0 0;position:relative}
.hero-top{display:grid;grid-template-columns:1.25fr 1fr;gap:56px;align-items:end}
.hero-status{display:flex;gap:10px;margin-bottom:28px;flex-wrap:wrap}
.hero h1{font-size:clamp(44px,6.4vw,88px);line-height:1.08;letter-spacing:-.045em;font-weight:800;margin:0}
.hero h1 a{display:flex;align-items:baseline;gap:18px;text-decoration:none}
.hero h1 a .num{font-family:var(--mono);font-size:.22em;font-weight:500;letter-spacing:0;transform:translateY(-1.6em);min-width:2.2em}
.hero h1 a .t{background-image:linear-gradient(var(--hl),var(--hl));background-size:0 .14em;background-repeat:no-repeat;background-position:0 92%;transition:background-size .35s}
.hero h1 a:hover .t,.hero h1 a:focus-visible .t{background-size:100% .14em}
.hero h1 a:nth-child(1){--hl:var(--c1)}.hero h1 a:nth-child(1) .num{color:var(--c1)}
.hero h1 a:nth-child(2){--hl:var(--c2)}.hero h1 a:nth-child(2) .num{color:var(--c2)}
.hero h1 a:nth-child(3){--hl:var(--c3)}.hero h1 a:nth-child(3) .num{color:var(--c3)}
.hero-copy p{font-size:19px;line-height:1.7;color:var(--ink-2);margin:0 0 28px;text-wrap:pretty}
.hero-copy p strong{color:var(--ink);font-weight:700}
.btns{display:flex;gap:10px;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;gap:10px;min-height:48px;padding:0 22px;border-radius:999px;font-weight:600;font-size:15px;text-decoration:none;border:1.5px solid var(--ink)}
.btn.solid{background:var(--ink);color:var(--paper)}
.btn:hover{transform:translateY(-1px)}
.dark .btn{border-color:#fff;color:#fff}
.dark .btn.solid{background:#fff;color:var(--ink)}

.hero-stage{margin-top:64px;position:relative}
.hero-stage::before{content:"";position:absolute;left:0;right:0;top:38%;bottom:-1px;background:var(--night)}
.shot{position:relative;max-width:1400px;margin:0 auto;padding:0 40px}
.shot-frame{position:relative;border-radius:14px;overflow:hidden;background:#1b1f23;box-shadow:0 40px 80px -30px rgba(0,0,0,.55),0 0 0 1px rgba(0,0,0,.6)}
.shot-frame img{display:block;width:100%;height:auto}
.shot-cap{display:flex;justify-content:space-between;align-items:center;gap:20px;color:#AEB4BA;font-size:14px;padding:18px 4px 0}
.shot-cap .tag.real{color:var(--c1-glow)}
.pin{position:absolute;transform:translate(-50%,-50%);z-index:3}
.pin button{width:30px;height:30px;border-radius:50%;border:2px solid #fff;background:var(--c1);color:#fff;font-family:var(--mono);font-size:13px;font-weight:600;display:grid;place-items:center;box-shadow:0 0 0 6px rgba(30,140,90,.25)}
.pin.warn button{background:#5c636b;box-shadow:0 0 0 6px rgba(92,99,107,.3)}
.pin .bubble{position:absolute;left:40px;top:50%;transform:translateY(-50%);width:240px;background:#fff;color:var(--ink);border-radius:10px;padding:12px 14px;font-size:13.5px;line-height:1.5;box-shadow:0 12px 30px rgba(0,0,0,.35);opacity:0;pointer-events:none;transition:opacity .2s}
.pin.left .bubble{left:auto;right:40px}
.pin .bubble b{display:block;font-size:14px;margin-bottom:2px}
.pin:hover .bubble,.pin.on .bubble,.pin button:focus-visible + .bubble{opacity:1}
.shot-legend{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border-top:1px solid var(--night-line);margin-top:22px}
.shot-legend li{list-style:none;padding:16px 18px 4px 0;color:#C9CED3;font-size:14px;line-height:1.5;display:flex;gap:10px}
.shot-legend li em{font-style:normal;font-family:var(--mono);font-size:12px;color:var(--c1-glow);padding-top:1px}
.shot-legend li.w em{color:#9AA1A8}

/* PROMISE STRIP */
.promise{background:var(--night);color:#fff;padding:64px 0 96px}
.promise-grid{display:grid;grid-template-columns:repeat(3,1fr);position:relative}
.promise-grid::before{content:"";position:absolute;left:0;right:0;top:22px;height:2px;background:linear-gradient(90deg,var(--c1-glow) 0 33.3%,var(--c2-glow) 33.3% 66.6%,var(--c3-glow) 66.6%)}
.pr{padding:0 36px 0 0;text-decoration:none;display:block}
.pr .k{width:46px;height:46px;border-radius:50%;display:grid;place-items:center;font-family:var(--mono);font-size:15px;font-weight:600;position:relative;background:var(--night);border:2px solid var(--c);color:var(--c)}
.pr:nth-child(1){--c:var(--c1-glow)}.pr:nth-child(2){--c:var(--c2-glow)}.pr:nth-child(3){--c:var(--c3-glow)}
.pr h3{font-size:28px;letter-spacing:-.03em;line-height:1.3;margin:24px 0 10px;font-weight:700}
.pr p{color:#AEB4BA;margin:0 0 16px;font-size:16px}
.pr .q{font-size:15px;color:#E6E8EA;border-left:2px solid var(--c);padding-left:12px;margin-bottom:18px}
.pr .go{font-family:var(--mono);font-size:13px;color:var(--c)}
.pr:hover h3{text-decoration:underline;text-decoration-thickness:2px;text-underline-offset:6px}

/* SECTION BASE */
section.sec{padding:140px 0}
.sec-head{display:grid;grid-template-columns:200px 1fr;gap:40px;margin-bottom:64px}
.sec-no{font-family:var(--mono);font-size:13px;color:var(--ink-3);padding-top:14px;display:flex;flex-direction:column;gap:8px}
.sec-no b{font-size:64px;font-weight:500;line-height:1;color:var(--c);letter-spacing:-.04em}
.sec-head h2{font-size:clamp(36px,4.8vw,64px);line-height:1.15;letter-spacing:-.04em;font-weight:800;margin:0 0 24px;text-wrap:balance}
.sec-head .pain{font-size:22px;font-weight:600;color:var(--ink-2);margin:0 0 16px;letter-spacing:-.02em}
.sec-head .pain::before{content:"“"}.sec-head .pain::after{content:"”"}
.sec-head .lead{font-size:18px;color:var(--ink-2);max-width:720px;margin:0;text-wrap:pretty}
.dark{background:var(--night);color:#fff}
.dark .sec-no{color:#868d94}
.dark .sec-head .pain{color:#D3D7DB}
.dark .sec-head .lead{color:#AEB4BA}
#change{--c:var(--c1)}
#trace{--c:var(--c2-glow)}
#learn{--c:var(--c3)}

/* FLOW CONTRAST */
.contrast{display:grid;grid-template-columns:1fr 1fr;gap:0;border:1px solid var(--line);border-radius:18px;overflow:hidden;margin-bottom:56px;background:#fff}
.lane{padding:28px 32px 32px}
.lane+.lane{border-left:1px solid var(--line);background:linear-gradient(180deg,#fff, var(--c1-soft) 260%)}
.lane h4{margin:0 0 4px;font-size:15px;font-weight:700;display:flex;align-items:center;gap:10px}
.lane small{color:var(--ink-3);font-size:13.5px}
.steps{display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin-top:22px;position:relative}
.steps span{font-size:14px;padding:8px 12px;border-radius:8px;background:var(--paper);border:1px solid var(--line);white-space:nowrap}
.steps i{font-style:normal;color:var(--ink-3);font-size:13px}
.steps.loop span.r{border-style:dashed;color:var(--ink-3)}
.steps.loop .back{flex-basis:100%;font-family:var(--mono);font-size:12px;color:var(--c2);margin-top:4px}
.steps.short span{background:#fff;border-color:var(--c1);color:var(--c1);font-weight:600}
.steps.short span.pending{border-style:dashed;color:var(--ink-2);font-weight:500}

/* EDITOR MOCK */
.editor{background:var(--night-2);border-radius:18px;overflow:hidden;color:#E6E8EA;box-shadow:0 30px 70px -30px rgba(0,0,0,.45);font-size:14px}
.ed-bar{display:flex;align-items:center;gap:14px;padding:12px 18px;background:var(--night);border-bottom:1px solid var(--night-line)}
.ed-bar .ttl{font-weight:700;display:flex;gap:8px;align-items:center}
.ed-bar .crumb{font-family:var(--mono);font-size:12px;color:#8C949B}
.ed-bar .tag{margin-left:auto}
.ed-body{display:grid;grid-template-columns:1fr 320px}
.ed-canvas{position:relative;min-height:520px;background-color:#1a1e22;background-image:radial-gradient(#2a3036 1px,transparent 1px);background-size:18px 18px;padding:28px}
.ed-canvas svg.wires{position:absolute;inset:0;width:100%;height:100%;pointer-events:none}
.grp{position:absolute;border:1.5px dashed #3e464d;border-radius:14px}
.grp .gl{position:absolute;top:-11px;left:14px;background:#1a1e22;padding:0 8px;font-family:var(--mono);font-size:12px;color:#9AA1A8}
.nd{position:absolute;width:236px;background:var(--night-3);border:1px solid #363d44;border-radius:10px;box-shadow:0 8px 20px rgba(0,0,0,.3);transition:border-color .3s,box-shadow .3s}
.nd h5{margin:0;padding:10px 14px;font-size:14px;font-weight:700;border-bottom:1px solid #363d44;display:flex;justify-content:space-between;align-items:center}
.nd h5 .flag{font-family:var(--mono);font-size:10px;color:var(--c1-glow);border:1px solid var(--c1-glow);border-radius:4px;padding:1px 5px;font-weight:500}
.nd .row{display:grid;grid-template-columns:62px 1fr auto;gap:8px;padding:8px 14px;font-size:13px;align-items:center}
.nd .row .k{font-family:var(--mono);font-size:11.5px;color:var(--c1-glow)}
.nd .row .v{font-family:var(--mono);font-size:12.5px;color:#fff}
.nd .row .v.chg{color:#111;background:#FFD27A;border-radius:4px;padding:1px 6px}
.nd.active{border-color:var(--c1-glow);box-shadow:0 0 0 3px rgba(60,196,135,.18),0 8px 20px rgba(0,0,0,.3)}
.cond{position:absolute;transform:translate(-50%,-50%);font-family:var(--mono);font-size:11.5px;background:#0f1215;border:1px solid #3e464d;border-radius:999px;padding:4px 10px;white-space:nowrap;color:#D8DCE0}
.cond .chg{color:#111;background:#FFD27A;border-radius:3px;padding:0 4px}
.ed-side{background:var(--night);border-left:1px solid var(--night-line);padding:20px;display:flex;flex-direction:column;gap:20px}
.ed-side h6{margin:0 0 10px;font-size:12px;font-weight:600;color:#9AA1A8;letter-spacing:.02em}
.seg{display:grid;grid-auto-flow:column;grid-auto-columns:1fr;background:var(--night-3);border-radius:10px;padding:4px;gap:4px}
.seg button{min-height:40px;border:0;background:transparent;color:#C9CED3;border-radius:7px;font-family:var(--mono);font-size:13px}
.seg button[aria-pressed=true]{background:#fff;color:var(--ink);font-weight:600}
.seg button:hover:not([aria-pressed=true]){background:#2c3238}
.lim{font-size:12.5px;color:#8C949B;line-height:1.55;border-top:1px solid var(--night-line);padding-top:14px}
.ed-preview{border-top:1px solid var(--night-line);padding:18px 22px 22px;display:grid;grid-template-columns:1fr 320px;gap:28px;align-items:start}
.ed-preview .ph{display:flex;justify-content:space-between;align-items:center;margin-bottom:10px}
.ed-preview .ph b{font-size:14px}
.legend{display:flex;gap:14px;font-size:12px;color:#9AA1A8;flex-wrap:wrap}
.legend i{display:inline-block;width:14px;height:8px;border-radius:2px;margin-right:6px;vertical-align:middle}
.chart svg{width:100%;height:auto;display:block}
.pipeline{display:flex;flex-direction:column;gap:6px}
.pipe{display:grid;grid-template-columns:28px 1fr;gap:12px;align-items:start;padding:10px 12px;border-radius:10px;border:1px solid var(--night-line)}
.pipe .s{width:26px;height:26px;border-radius:50%;display:grid;place-items:center;font-family:var(--mono);font-size:12px;border:1.5px solid #59616a;color:#9AA1A8}
.pipe b{font-size:13.5px;display:block}
.pipe span{font-size:12.5px;color:#8C949B;line-height:1.45;display:block}
.pipe.done .s{background:var(--c1-glow);border-color:var(--c1-glow);color:#0d1a13}
.pipe.now{border-color:var(--c1-glow);background:rgba(60,196,135,.08)}
.pipe.now .s{border-color:var(--c1-glow);color:var(--c1-glow)}
.pipe.wait .s{border-style:dashed}
.req{margin-top:6px;min-height:44px;border-radius:10px;border:1.5px solid #fff;background:#fff;color:var(--ink);font-weight:700;font-size:14px}
.req:disabled{opacity:.35;cursor:not-allowed}
.req.sent{background:transparent;color:#fff}
.real-ref{display:grid;gap:28px;margin-top:88px;padding-top:48px;border-top:1px solid var(--line);min-width:0}
.real-ref-head{display:grid;grid-template-columns:1.4fr 1fr;gap:48px;align-items:end}
.real-ref h3{font-size:clamp(28px,3.2vw,42px);letter-spacing:-.04em;line-height:1.3;margin:18px 0 0}
.real-ref p{color:var(--ink-2);margin:0;line-height:1.8}
.real-ref-head p{max-width:460px;font-size:18px}
.real-ref figure{margin:0;min-width:0;border-radius:18px;overflow:hidden;background:#1e2228;border:1px solid #343a42;box-shadow:0 20px 48px rgba(21,24,27,.14)}
.real-ref-canvas{overflow-x:auto;scrollbar-width:thin;scrollbar-color:#737b85 #1e2228}
.real-ref figure img{display:block;width:100%;min-width:1000px;height:auto}
.real-ref figcaption{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:18px 24px;border-top:1px solid #343a42;color:#e6e8ea;font-size:14px}
.real-ref figcaption a{flex-shrink:0;padding:9px 14px;border:1px solid #626c76;border-radius:8px;color:#fff;text-decoration:none;font-weight:600}
.real-ref figcaption a:hover{background:#343a42}
.real-ref figure :focus-visible{outline-color:#fff;outline-offset:-4px}
.real-ref-scroll-hint{display:none}
.real-ref-sr{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip-path:inset(50%);white-space:nowrap}
.real-ref ol{margin:0;padding:0;list-style:none;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:28px}
.real-ref ol li{display:grid;grid-template-columns:32px 1fr;gap:12px;padding-top:20px;border-top:2px solid var(--c1);font-size:15px}
.real-ref ol li em{font-style:normal;font-family:var(--mono);font-size:14px;color:var(--c1);padding-top:3px}
.real-ref ol li b{display:block;margin-bottom:8px;font-size:18px}
.real-ref ol li span{display:block;color:var(--ink-2)}
.real-ref p.note{font-size:13.5px;color:var(--ink-2);max-width:880px}
.note{font-size:13.5px;color:var(--ink-3);margin-top:16px}

/* TRACE */
.scene-tabs{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border-bottom:1px solid var(--night-line);margin-bottom:0}
.scene-tabs button{background:none;border:0;color:#9AA1A8;text-align:left;padding:16px 18px 18px 0;font-size:15px;border-bottom:3px solid transparent;margin-bottom:-1px;display:flex;gap:12px;align-items:baseline;min-height:56px}
.scene-tabs button em{font-style:normal;font-family:var(--mono);font-size:12px}
.scene-tabs button[aria-selected=true]{color:#fff;border-bottom-color:var(--c2-glow);font-weight:700}
.scene-tabs button[aria-selected=true] em{color:var(--c2-glow)}
.trace-panel{background:var(--night-2);border:1px solid var(--night-line);border-top:0;border-radius:0 0 18px 18px;padding:28px 32px 32px}
.tp-head{display:flex;justify-content:space-between;align-items:center;gap:16px;margin-bottom:28px;flex-wrap:wrap}
.cmd{display:flex;align-items:center;gap:14px}
.cmd .btnlike{font-weight:700;border:1.5px solid #4a525a;border-radius:10px;padding:10px 16px;font-size:14.5px;background:var(--night-3)}
.cmd .st{font-family:var(--mono);font-size:13px}
.map{display:grid;grid-template-columns:repeat(9,auto);align-items:center;justify-content:space-between;gap:0;margin:8px 0 30px}
.mnode{display:flex;flex-direction:column;align-items:center;gap:10px;background:none;border:0;color:#fff;padding:0;min-width:96px}
.mnode .box{width:88px;height:88px;border-radius:20px;border:2px solid #4a525a;background:var(--night-3);display:grid;place-items:center;position:relative;transition:all .3s}
.mnode .box svg{width:34px;height:34px;stroke:#C9CED3;fill:none;stroke-width:1.6}
.mnode .lbl{font-size:14px;font-weight:600}
.mnode .sub{font-family:var(--mono);font-size:11px;color:#8C949B;margin-top:-6px}
.badge{position:absolute;top:-10px;right:-10px;width:26px;height:26px;border-radius:50%;display:grid;place-items:center;font-size:13px;font-weight:800;font-family:var(--mono);border:2px solid var(--night-2)}
.st-ok .box{border-color:var(--c1-glow)}
.st-ok .badge{background:var(--c1-glow);color:#0d1a13}
.st-bad .box{border-color:var(--c2-glow);background:rgba(242,154,69,.12)}
.st-bad .badge{background:var(--c2-glow);color:#1f1200}
.st-unk .box{border-style:dashed;border-color:#6b737b;opacity:.75}
.st-unk .badge{background:#6b737b;color:#fff}
.st-chk .box{border-color:#E8C35A;border-style:dashed}
.st-chk .badge{background:#E8C35A;color:#1f1700}
.mnode.sel .box{box-shadow:0 0 0 4px rgba(255,255,255,.18)}
.mlink{height:88px;display:flex;flex-direction:column;justify-content:center;align-items:center;min-width:70px;flex:1;background:none;border:0;padding:0 4px;color:#fff;align-self:start}
.mlink .ln{height:4px;width:100%;border-radius:2px;background:#4a525a;position:relative}
.mlink.ok .ln{background:var(--c1-glow)}
.mlink.bad .ln{background:repeating-linear-gradient(90deg,var(--c2-glow) 0 8px,transparent 8px 14px)}
.mlink.unk .ln{background:repeating-linear-gradient(90deg,#6b737b 0 3px,transparent 3px 8px)}
.mlink.chk .ln{background:repeating-linear-gradient(90deg,#E8C35A 0 8px,transparent 8px 14px)}
.mlink .lt{font-family:var(--mono);font-size:11px;margin-top:8px;color:#9AA1A8;white-space:nowrap}
.mlink.bad .lt{color:var(--c2-glow);font-weight:600}
.mlink.sel .ln{outline:2px solid #fff;outline-offset:4px}
.trace-grid{display:grid;grid-template-columns:1fr 1.1fr;gap:28px}
.timeline{border:1px solid var(--night-line);border-radius:14px;padding:18px 20px}
.timeline h6,.detail h6{margin:0 0 14px;font-size:12px;color:#9AA1A8;font-weight:600}
.tl{list-style:none;margin:0;padding:0;display:grid;gap:2px}
.tl li{display:grid;grid-template-columns:26px 1fr auto;gap:12px;align-items:center;padding:9px 0;border-bottom:1px dashed #2b3136;font-size:14px}
.tl li:last-child{border-bottom:0}
.tl .ic{width:22px;height:22px;border-radius:50%;display:grid;place-items:center;font-size:12px;font-weight:800;font-family:var(--mono)}
.tl .ok .ic,.tl li.ok .ic{background:var(--c1-glow);color:#0d1a13}
.tl li.bad .ic{background:var(--c2-glow);color:#1f1200}
.tl li.unk .ic{background:#6b737b;color:#fff}
.tl li.chk .ic{background:#E8C35A;color:#1f1700}
.tl li .r{font-family:var(--mono);font-size:12px;color:#9AA1A8}
.tl li.bad .r{color:var(--c2-glow)}
.detail{border:1px solid var(--night-line);border-radius:14px;padding:20px 22px;background:var(--night)}
.detail .seg-name{font-size:22px;font-weight:700;letter-spacing:-.02em;margin:0 0 16px;display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.dl{display:grid;grid-template-columns:110px 1fr;gap:12px 16px;margin:0;font-size:15px}
.dl dt{color:#9AA1A8;font-size:13px;padding-top:2px}
.dl dd{margin:0}
.checks{list-style:none;margin:0;padding:0;display:grid;gap:6px}
.checks label{display:flex;gap:10px;align-items:center;min-height:36px;cursor:pointer}
.checks input{width:18px;height:18px;accent-color:#E8C35A}
.caveat{margin-top:16px;font-size:13px;color:#8C949B;border-top:1px solid var(--night-line);padding-top:12px}
.flowline{display:grid;grid-template-columns:repeat(4,1fr);margin-top:48px;gap:0}
.flowline div{padding:16px 20px 0 0;border-top:2px solid #3a4148;color:#AEB4BA;font-size:14.5px}
.flowline div b{display:block;color:#fff;font-size:16px;margin-bottom:4px}
.flowline div.on{border-top-color:var(--c2-glow)}

/* LEARN */
.learn-board{background:#fff;border:1px solid var(--line);border-radius:18px;overflow:hidden}
.lb-head{display:flex;justify-content:space-between;align-items:center;padding:16px 24px;border-bottom:1px solid var(--line);gap:16px;flex-wrap:wrap}
.lb-head b{font-size:15px}
.lb-body{display:grid;grid-template-columns:1fr 360px}
.tracks{padding:20px 24px 24px;position:relative}
.trk{display:grid;grid-template-columns:96px 1fr;align-items:center;border-bottom:1px solid var(--paper-2);min-height:64px}
.trk:last-of-type{border-bottom:0}
.trk .tn{font-size:13px;font-weight:600;color:var(--ink-2)}
.trk .tn small{display:block;font-weight:400;color:var(--ink-3);font-size:11.5px}
.trk svg{width:100%;height:64px;display:block;overflow:visible}
.wk{display:grid;grid-template-columns:96px 1fr;font-family:var(--mono);font-size:11px;color:var(--ink-3);padding-top:6px}
.wk div{display:flex;justify-content:space-between}
.ranges{display:flex;gap:8px;flex-wrap:wrap;padding:0 24px 22px}
.ranges button{min-height:44px;border:1.5px solid var(--line);background:var(--paper);border-radius:10px;padding:6px 14px;text-align:left;font-size:13.5px;color:var(--ink-2)}
.ranges button b{display:block;color:var(--ink);font-size:14px}
.ranges button[aria-pressed=true]{border-color:var(--c3);background:var(--c3-soft);color:var(--ink)}
.ranges button[aria-pressed=true] b::before{content:"✓ ";color:var(--c3)}
.ai{border-left:1px solid var(--line);background:linear-gradient(180deg,#F7F8FC,#fff);padding:22px 24px;display:flex;flex-direction:column;gap:16px}
.ai .msg{font-size:16px;line-height:1.6;font-weight:500;padding:16px;border-radius:12px;background:#fff;border:1px solid var(--c3-soft);position:relative}
.ai .msg::before{content:"AI 활용 방향 · 시안 문구";display:block;font-family:var(--mono);font-size:11px;color:var(--c3);margin-bottom:6px}
.cmp{width:100%;border-collapse:collapse;font-size:13.5px}
.cmp th,.cmp td{text-align:left;padding:8px 6px;border-bottom:1px solid var(--paper-2);vertical-align:top}
.cmp th{font-size:11.5px;color:var(--ink-3);font-weight:600}
.cmp td.w{color:var(--c2);font-weight:600}
.cmp td.w::before{content:"△ "}
.cmp td.s::before{content:"= ";color:var(--c3)}
.ai-actions{display:grid;gap:8px}
.ai-actions button{min-height:46px;border-radius:10px;border:1.5px solid var(--c3);background:#fff;color:var(--c3);font-weight:700;font-size:14px}
.ai-actions button.pri{background:var(--c3);color:#fff}
.ai-actions button[aria-pressed=true]{background:var(--c3-soft);color:var(--ink);border-color:var(--c3)}
.ai .fine{font-size:12.5px;color:var(--ink-3);line-height:1.55}
.stage-line{display:grid;grid-template-columns:repeat(4,1fr);margin-top:44px;gap:24px}
.stage-line div{border-top:2px solid var(--c3);padding-top:14px;font-size:14.5px;color:var(--ink-2)}
.stage-line div b{display:block;color:var(--ink);font-size:17px;margin-bottom:4px}
.stage-line div em{font-style:normal;font-family:var(--mono);font-size:12px;color:var(--c3)}

/* LOOP */
.loop{padding:140px 0;overflow:hidden}
.loop-grid{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:center}
.loop h2{font-size:clamp(36px,4.8vw,64px);line-height:1.15;letter-spacing:-.04em;margin:18px 0 24px;font-weight:800}
.loop h2 s{text-decoration:none;color:#6b737b;font-weight:500}
.loop p{color:#AEB4BA;font-size:18px;max-width:520px}
.loop-svg{width:100%;max-width:560px;justify-self:center}
.loop-svg text{font-family:var(--sans)}
.loop-list{list-style:none;padding:0;margin:32px 0 0;display:grid;gap:14px}
.loop-list li{display:grid;grid-template-columns:36px 1fr;gap:12px;font-size:16px;color:#D3D7DB}
.loop-list li em{font-style:normal;font-family:var(--mono);font-size:13px;padding-top:2px}

/* APPLY */
.apply-table{border-top:2px solid var(--ink)}
.ap{display:grid;grid-template-columns:240px 1fr 1fr 1fr;gap:32px;padding:28px 0;border-bottom:1px solid var(--line);align-items:start}
.ap.h{padding:14px 0;font-family:var(--mono);font-size:12px;color:var(--ink-3)}
.ap.h span:nth-child(2){color:var(--c1)}.ap.h span:nth-child(3){color:var(--c2)}.ap.h span:nth-child(4){color:var(--c3)}
.ap h4{margin:0;font-size:24px;letter-spacing:-.03em}
.ap h4 small{display:block;font-size:13px;color:var(--ink-3);font-weight:500;letter-spacing:0;margin-top:4px}
.ap p{margin:0;font-size:15.5px;color:var(--ink-2);text-wrap:pretty}
.ap p.na{color:var(--ink-3);font-style:italic}

/* FAQ */
.faq-grid{display:grid;grid-template-columns:1fr 1.4fr;gap:64px}
.faq-grid h2{font-size:clamp(32px,4vw,52px);letter-spacing:-.04em;line-height:1.2;margin:0 0 20px}
details{border-top:1px solid var(--line);padding:4px 0}
details:last-child{border-bottom:1px solid var(--line)}
summary{list-style:none;cursor:pointer;display:flex;justify-content:space-between;align-items:center;gap:16px;min-height:64px;font-size:19px;font-weight:700;letter-spacing:-.02em}
summary::-webkit-details-marker{display:none}
summary::after{content:"+";font-family:var(--mono);font-weight:400;font-size:22px;color:var(--ink-3)}
details[open] summary::after{content:"–"}
details p{margin:0 0 22px;color:var(--ink-2);max-width:640px}
.next{margin-top:120px;border-radius:24px;background:var(--ink);color:#fff;padding:56px;display:grid;grid-template-columns:1.2fr 1fr;gap:40px;align-items:end}
.next h3{font-size:clamp(30px,3.6vw,46px);letter-spacing:-.04em;line-height:1.2;margin:0}
.next p{color:#AEB4BA;margin:0 0 20px}

footer{background:var(--night);color:#AEB4BA;padding:56px 0 48px;font-size:14px}
footer .wrap{display:grid;grid-template-columns:1fr auto;gap:32px;align-items:end}
footer .brand b{color:#fff;font-size:36px}
footer .legal{font-size:13px;color:#7A8188;max-width:620px;margin-top:14px}

/* RESPONSIVE */
@media (max-width:1080px){
  .hero-top{grid-template-columns:1fr;gap:32px}
  .ed-body{grid-template-columns:1fr}
  .ed-side{border-left:0;border-top:1px solid var(--night-line)}
  .ed-preview{grid-template-columns:1fr}
  .lb-body{grid-template-columns:1fr}
  .ai{border-left:0;border-top:1px solid var(--line)}
  .real-ref-head,.loop-grid,.faq-grid,.next{grid-template-columns:1fr}
  .real-ref-head{gap:16px}
  .real-ref-head p{max-width:680px}
  .ap{grid-template-columns:1fr 1fr;gap:16px 24px}
  .ap h4{grid-column:1/-1}
  .ap.h{display:none}
  .ap p::before{display:block;font-family:var(--mono);font-size:11px;font-style:normal;margin-bottom:4px}
  .ap p:nth-of-type(1)::before{content:"바꿀 수 있는 것";color:var(--c1)}
  .ap p:nth-of-type(2)::before{content:"보이는 것";color:var(--c2)}
  .ap p:nth-of-type(3)::before{content:"남는 기록";color:var(--c3)}
}
@media (max-width:760px){
  body{font-size:16px}
  .wrap{padding:0 20px}
  .nav ul{display:none}
  .nav .cta{margin-left:auto;font-size:13px;padding:8px 14px}
  .hero{padding-top:36px}
  .hero h1{font-size:44px;line-height:1.14}
  .hero h1 a{gap:10px}
  .hero h1 a .num{font-size:12px;transform:translateY(-2.4em);min-width:22px}
  .hero-copy p{font-size:17px}
  .hero-stage{margin-top:40px}
  .shot{padding:0 0 0 20px}
  .shot-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch;padding-right:20px;scrollbar-width:thin}
  .shot-frame{width:860px}
  .shot-cap{flex-direction:column;align-items:flex-start;padding-right:20px}
  .shot-legend{grid-template-columns:1fr 1fr;padding-right:20px}
  .pin .bubble{display:none}
  .promise{padding:48px 0 72px}
  .promise-grid{grid-template-columns:1fr;gap:36px}
  .promise-grid::before{display:none}
  .pr{display:grid;grid-template-columns:46px 1fr;gap:0 16px;padding:0}
  .pr h3{margin:6px 0 6px;font-size:22px}
  .pr>*:not(.k){grid-column:2}
  .pr .k{grid-row:1/span 4}
  section.sec,.loop{padding:88px 0}
  .sec-head{grid-template-columns:1fr;gap:12px;margin-bottom:40px}
  .sec-no{flex-direction:row;align-items:baseline;gap:12px;padding:0}
  .sec-no b{font-size:40px}
  .sec-head h2{font-size:34px}
  .sec-head .pain{font-size:18px}
  .contrast{grid-template-columns:1fr}
  .lane+.lane{border-left:0;border-top:1px solid var(--line)}
  .lane{padding:22px}
  /* mobile editor: stacked list instead of canvas */
  .ed-canvas{min-height:0;padding:20px 16px}
  .ed-canvas svg.wires{display:none}
  .grp,.nd,.cond{position:static!important;transform:none!important;width:auto!important;height:auto!important}
  .grp{padding:22px 12px 12px;margin-bottom:22px;display:grid;gap:10px}
  .nd{width:auto}
  .cond{display:inline-block;margin:-2px 0 0 18px;justify-self:start}
  .ed-flat{display:grid;gap:10px}
  .ed-preview{padding:16px}
  .real-ref{margin-top:56px;padding-top:32px;gap:24px}
  .real-ref ol{grid-template-columns:1fr;gap:20px}
  .real-ref figcaption{align-items:flex-start;flex-direction:column;padding:16px;gap:12px}
  .real-ref-scroll-hint{display:block;margin-top:6px;color:#bec5cd;font-size:12px}
  .scene-tabs{grid-template-columns:1fr 1fr}
  .scene-tabs button{padding:12px 8px 14px 0;font-size:14px}
  .trace-panel{padding:20px 16px}
  .map{grid-template-columns:1fr;justify-items:stretch;gap:0}
  .mnode{flex-direction:row;gap:14px;min-width:0}
  .mnode .box{width:60px;height:60px;border-radius:14px}
  .mnode .box svg{width:26px;height:26px}
  .mnode .txt{text-align:left}
  .mnode .sub{margin-top:0}
  .mlink{height:auto;flex-direction:row;justify-content:flex-start;gap:14px;padding:4px 0 4px 28px;align-self:stretch}
  .mlink .ln{width:4px;height:40px}
  .mlink .lt{margin:0}
  .trace-grid{grid-template-columns:1fr}
  .dl{grid-template-columns:1fr;gap:2px}
  .dl dd{margin-bottom:10px}
  .flowline,.stage-line{grid-template-columns:1fr 1fr;gap:20px}
  .tracks{padding:16px 12px 18px;overflow-x:auto}
  .tracks-in{min-width:560px}
  .trk{grid-template-columns:72px 1fr}
  .wk{grid-template-columns:72px 1fr}
  .ranges{padding:0 12px 18px}
  .ai{padding:18px 16px}
  .ap{grid-template-columns:1fr}
  .next{padding:32px 24px;margin-top:80px}
  footer .wrap{grid-template-columns:1fr}
}