@charset "UTF-8";
:root{--paper:#f5f4ef;--panel:#fffefa;--ink:#172c35;--muted:#56666f;--line:#dcded7;--orange:#b34c29;--navy:#122e3a;--green:#446957;--mono:ui-monospace,SFMono-Regular,Consolas,monospace;color-scheme:light}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:96px}body{margin:0;background:var(--paper);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"Apple SD Gothic Neo","Noto Sans KR",sans-serif;line-height:1.65;word-break:keep-all}a{color:inherit;text-decoration:none}button,input{font:inherit}button,a,input{-webkit-tap-highlight-color:transparent}a:focus-visible,button:focus-visible,input:focus-visible{outline:3px solid #cc682f;outline-offset:5px}button{cursor:pointer}a,button{touch-action:manipulation}.skip{position:absolute;left:20px;top:-100px;z-index:100;background:white;padding:12px}.skip:focus{top:10px}
.lab-header{background:var(--navy);color:#f4f4ed;position:sticky;top:0;z-index:20;border-bottom:1px solid #ffffff17}.header-inner{max-width:1320px;margin:auto;display:flex;align-items:center;justify-content:space-between;gap:28px;padding:16px 36px}.brand{display:flex;gap:12px;align-items:center;flex-shrink:0}.brand-mark{display:grid;place-items:center;width:40px;height:40px;border:1px solid #ffffff50;border-radius:10px;color:#f9caa0}.brand-mark svg{width:26px;height:26px}.brand-text{display:flex;flex-direction:column;font-size:17px;font-weight:700;letter-spacing:-.4px;line-height:1.5}.brand-text small{font:9px var(--mono);letter-spacing:2.1px;color:#b8c8cb}.main-nav{display:flex;gap:27px;align-items:center;font-size:13px;color:#c5d2d4}.main-nav a:hover{color:#fff}.nas-button{display:inline-flex;gap:8px;align-items:center;padding:8px 14px;border:1px solid #ffffff40;border-radius:5px;color:white;font-size:12px;white-space:nowrap}.nas-button svg{width:14px;height:14px}
main{max-width:1320px;margin:auto;padding:0 36px}.desk-line{display:flex;justify-content:space-between;gap:16px;border-bottom:1px solid var(--line);padding:24px 0 16px;color:var(--muted);font:10px var(--mono);letter-spacing:1.6px}.desk-line>span:first-child:before{content:"";display:inline-block;width:6px;height:6px;border-radius:50%;background:var(--orange);margin-right:10px}.hero{display:grid;grid-template-columns:1.15fr 1fr;gap:65px;padding:54px 0 58px;align-items:center}.eyebrow{font:10px var(--mono);letter-spacing:2px;text-transform:uppercase;color:var(--orange);margin:0 0 20px}.hero h1{font-size:clamp(34px,3.6vw,53px);line-height:1.29;letter-spacing:-2.5px;margin:0 0 24px;font-weight:750}.hero h1 em{font-style:normal;color:var(--orange)}.hero-copy{max-width:430px;color:var(--muted);font-size:14px;line-height:1.9;margin:0}.hero-actions{display:flex;flex-wrap:wrap;gap:15px;align-items:center;margin:28px 0 22px}.button-primary{display:inline-flex;align-items:center;gap:20px;border-radius:5px;padding:12px 19px;background:var(--navy);color:#fff;font-size:13px;font-weight:650;transition:background .2s,transform .2s}.button-primary:hover{background:#244c5c;transform:translateY(-2px)}.text-link{font-size:12px;border-bottom:1px solid #889496;padding:5px 0}.hero-note{display:flex;align-items:center;gap:9px;font-size:11px;color:var(--muted)}.hero-note img{width:30px;height:30px;object-fit:cover;border-radius:50%;background:white;border:1px solid var(--line)}
.signal-panel{background:var(--navy);border-radius:12px;color:#eaf0eb;position:relative;overflow:hidden;box-shadow:0 15px 36px #172c3512}.signal-head{display:flex;justify-content:space-between;align-items:center;padding:20px 23px 0}.signal-head span{font:10px var(--mono);letter-spacing:1.8px}.signal-head .simulation-tag{font-size:9px;color:#f5cda8;border:1px solid #a16e464f;border-radius:3px;padding:4px 7px;letter-spacing:.6px}.signal-chart{display:block;width:100%;height:auto;margin:6px 0 0}.signal-chart text{font:9px var(--mono);fill:#9db6be}.signal-chart .wave{fill:none;stroke:#edb78b;stroke-width:2.5;stroke-linecap:round}.signal-chart .wave-secondary{fill:none;stroke:#63928d;stroke-width:1.4;opacity:.75}.signal-meta{display:flex;gap:26px;padding:2px 24px 20px}.signal-meta div{display:flex;flex-direction:column}.signal-meta span{font:9px var(--mono);color:#a3bac1;letter-spacing:1px}.signal-meta strong{font:19px var(--mono);font-weight:400;margin-top:5px}.signal-meta strong small{font-size:10px;color:#a3bac1}.signal-control{border-top:1px solid #ffffff15;background:#102934;padding:13px 23px;display:flex;align-items:center;gap:14px;font-size:11px}.signal-control input{width:100%;min-width:40px;accent-color:#edb78b;height:26px}.signal-control label{white-space:nowrap;color:#c7d6d6}.signal-control button{border:1px solid #58717a;background:none;color:#e8eee7;padding:4px 9px;border-radius:3px;white-space:nowrap;font-size:10px}.signal-caption{position:absolute;right:23px;bottom:79px;color:#a6c0c5;font:9px var(--mono);letter-spacing:.4px}
.quick-rail{border:1px solid var(--line);border-radius:7px;background:#edeee7;display:grid;grid-template-columns:1.15fr 1fr 1fr;margin-bottom:45px}.quick-rail a{padding:16px 21px;display:flex;align-items:center;gap:13px;font-size:12px}.quick-rail a+a{border-left:1px solid var(--line)}.quick-rail svg{width:21px;height:21px;color:var(--green);flex-shrink:0}.quick-rail small{display:block;color:var(--muted);font-size:10px}.quick-rail .arrow{margin-left:auto;color:var(--muted)}
.section-heading{display:flex;justify-content:space-between;align-items:flex-end;gap:25px;margin-bottom:22px}.section-heading .eyebrow{margin-bottom:7px}.section-heading h2{font-size:23px;line-height:1.4;letter-spacing:-.7px;margin:0}.section-heading>p{font-size:12px;color:var(--muted);margin:0}.tool-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}.tool-card{display:flex;flex-direction:column;min-height:218px;border:1px solid var(--line);background:var(--panel);border-radius:7px;padding:21px;transition:transform .2s,border-color .2s}.tool-card:hover{transform:translateY(-4px);border-color:#aab8b2}.card-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:25px}.card-icon{display:grid;place-items:center;width:39px;height:39px;border-radius:8px;background:#edf0e8;color:var(--green)}.card-icon svg{width:22px;height:22px}.card-top>span{color:#8d9799;font:10px var(--mono)}.tool-card h3{font-size:16px;margin:0 0 8px;letter-spacing:-.5px}.tool-card p{font-size:12px;line-height:1.8;color:var(--muted);margin:0 0 20px}.card-bottom{display:flex;align-items:center;justify-content:space-between;margin-top:auto;font:9px var(--mono);letter-spacing:.8px;color:#667972}.card-bottom b{font-size:17px;font-weight:400;color:var(--orange)}
.lower-grid{display:grid;grid-template-columns:1.45fr 1fr;gap:30px;margin:48px 0}.library{padding:0 0 6px}.book-row{display:grid;grid-template-columns:35px 1fr auto;gap:13px;align-items:center;padding:16px 0;border-bottom:1px solid var(--line)}.book-row:hover .book-title{text-decoration:underline;text-underline-offset:4px}.book-symbol{height:39px;width:31px;border:1px solid #b8c6bb;border-left:4px solid #78907b;border-radius:2px;display:grid;place-items:center;font:10px var(--mono);color:var(--green);background:#ecf0e8}.book-title{font-size:13px}.book-row small{display:block;font-size:10px;color:var(--muted);margin-top:1px}.book-format{font:9px var(--mono);color:var(--muted)}.shelf-note{font-size:10px;color:var(--muted);line-height:1.8;margin:14px 0 0}.nas-card{background:#e8ece5;padding:28px;border:1px solid #d7ddd3;border-radius:8px;align-self:stretch}.nas-card .eyebrow{color:var(--green);margin-bottom:12px}.nas-card h2{font-size:25px;line-height:1.4;letter-spacing:-.8px;margin:0 0 14px}.nas-card p{font-size:12px;color:var(--muted);line-height:1.9;max-width:310px}.nas-illustration{margin:13px 0 22px;display:flex;align-items:center;gap:17px}.nas-tower{width:82px;height:71px;border:1.5px solid #577362;border-radius:5px;padding:9px;display:flex;gap:5px;background:#f6f8f0}.nas-tower span{display:block;border:1px solid #90a18f;flex:1;border-radius:2px;position:relative}.nas-tower span:after{content:"";position:absolute;bottom:7px;left:6px;right:6px;height:2px;background:#6f9070}.nas-illustration>span{font:10px/1.9 var(--mono);color:var(--green)}.nas-card .button-primary{width:100%;justify-content:space-between;background:#355a48}.nas-card .login-note{font-size:10px;margin-top:14px;line-height:1.8}.lab-footer{border-top:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;gap:20px;padding:25px 0 30px;font-size:11px;color:var(--muted)}.footer-links{display:flex;gap:20px}.footer-mark{font:10px var(--mono);letter-spacing:1px}.hint-box{padding:18px 22px;background:#efeee7;border-left:3px solid #acbbaa;margin-bottom:33px;font-size:12px;color:#526269}.hint-box strong{color:var(--ink);margin-right:10px}.hint-box a{text-decoration:underline;text-underline-offset:3px}
@media(min-width:1500px){.hero{padding-top:65px;padding-bottom:70px}.hero h1{font-size:55px}.tool-card{min-height:232px}}
@media(max-width:1000px){.header-inner,main{padding-left:25px;padding-right:25px}.hero{gap:32px}.hero h1{font-size:38px}.main-nav{gap:17px}.tool-grid{grid-template-columns:repeat(2,1fr)}.tool-card{min-height:195px}.card-top{margin-bottom:17px}.lower-grid{grid-template-columns:1.2fr 1fr;gap:22px}.signal-caption{display:none}}
@media(max-width:680px){html{scroll-padding-top:90px}.header-inner{padding:13px 19px;gap:12px}.brand-text{font-size:15px}.brand-text small{font-size:8px}.brand-mark{width:34px;height:34px}.main-nav{display:none}.nas-button{font-size:11px;padding:8px 10px}main{padding:0 20px}.desk-line{font-size:8px;letter-spacing:1px;padding-top:18px}.desk-line .desktop-note{display:none}.hero{grid-template-columns:1fr;gap:30px;padding:35px 0 27px}.hero h1{font-size:38px;letter-spacing:-1.9px;margin-bottom:18px}.hero-copy{font-size:13px;max-width:350px}.hero-actions{margin:22px 0 16px}.hero-note{font-size:10px}.signal-panel{max-width:100%}.signal-head{padding-top:17px}.signal-meta{padding-bottom:17px}.signal-chart{max-height:186px}.quick-rail{grid-template-columns:1fr;margin-bottom:32px}.quick-rail a{padding:12px 16px}.quick-rail a+a{border-left:0;border-top:1px solid var(--line)}.quick-rail small{display:inline;margin-left:7px}.section-heading{align-items:start;gap:14px}.section-heading h2{font-size:21px}.section-heading>p{display:none}.tool-grid{gap:11px}.tool-card{padding:16px;min-height:220px}.tool-card h3{font-size:15px}.tool-card p{font-size:11px;word-break:normal}.card-top{margin-bottom:20px}.card-bottom{font-size:8px}.lower-grid{grid-template-columns:1fr;gap:29px;margin:35px 0 25px}.nas-card{padding:24px}.nas-card p{max-width:none}.hint-box{font-size:11px;padding:16px;margin-bottom:25px}.hint-box strong{display:block;margin-bottom:4px}.lab-footer{align-items:start;font-size:10px}.footer-links{flex-direction:column;gap:8px}.footer-mark{font-size:9px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{transition:none!important;animation:none!important}}