@layer reset,base,layout,components,responsive;
@layer reset{*{box-sizing:border-box}html{scroll-behavior:smooth}body,h1,h2,h3,p,figure,figcaption,dl,dd,ul{margin:0}button{font:inherit}img{display:block;max-width:100%}ul{padding-left:20px}}
@layer base{:root{--navy:#142b36;--blue:#315c68;--paper:#f1eadb;--paper2:#ded5c4;--cream:#fff9ec;--orange:#d9643b;--red:#a73c37;--brass:#d0aa55;--mint:#789c8c;--line:#9c927f;--shadow:0 18px 44px rgba(20,43,54,.16);--sans:Arial,"Apple SD Gothic Neo","Noto Sans KR",sans-serif;--mono:"SFMono-Regular",Consolas,monospace}body{min-width:320px;background:var(--paper2);color:var(--navy);font-family:var(--sans);background-image:linear-gradient(rgba(20,43,54,.045) 1px,transparent 1px),linear-gradient(90deg,rgba(20,43,54,.045) 1px,transparent 1px);background-size:24px 24px}.skip-link{position:fixed;left:16px;top:16px;z-index:80;background:#fff;color:#000;padding:12px 18px;transform:translateY(-220%)}.skip-link:focus{transform:none}button:focus-visible,a:focus-visible,[tabindex]:focus-visible{outline:3px solid var(--orange);outline-offset:3px}}
@layer layout{.site-header{min-height:276px;padding:34px clamp(24px,5vw,76px) 30px;background:var(--navy);color:white;display:grid;grid-template-columns:minmax(0,1.3fr) minmax(320px,.7fr);gap:40px;align-items:end;border-bottom:10px solid var(--orange);position:relative;overflow:hidden}.site-header:after{content:"53";position:absolute;right:-8px;top:-48px;font-size:260px;font-weight:900;line-height:1;color:rgba(255,255,255,.035)}.eyebrow{font-size:11px;letter-spacing:.2em;color:#aec8ce;font-weight:800}.site-header h1{font-size:clamp(45px,6.2vw,80px);letter-spacing:-.06em;line-height:.95;margin-top:15px}.subtitle{margin-top:18px;max-width:720px;color:#d4dfdc;font-size:17px;line-height:1.6}.boundary-rack{display:grid;gap:8px;position:relative;z-index:1}.boundary-rack span{border:1px solid rgba(255,255,255,.26);background:rgba(0,0,0,.13);padding:10px 12px;font-size:10px;letter-spacing:.08em}.state-nav{position:sticky;top:0;z-index:30;display:grid;grid-template-columns:repeat(7,1fr);background:var(--cream);border-bottom:1px solid var(--line);box-shadow:0 8px 18px rgba(20,43,54,.08)}.state-nav button{border:0;border-right:1px solid #d5cbb7;background:transparent;color:var(--navy);padding:13px 8px;cursor:pointer;font-size:13px;min-width:0}.state-nav button b{display:block;font-size:9px;letter-spacing:.12em;color:#9b907b;margin-bottom:2px}.state-nav button[aria-selected="true"]{background:var(--brass);font-weight:900}.state-nav button[aria-selected="true"] b{color:var(--navy)}.review-stage{max-width:1560px;margin:0 auto;padding:clamp(22px,4vw,58px)}.visual-state{min-height:710px}.state-heading{display:flex;justify-content:space-between;align-items:flex-end;gap:24px;padding-bottom:18px;border-bottom:3px solid var(--navy);margin-bottom:26px}.state-heading p{font-size:11px;letter-spacing:.18em;color:var(--blue);font-weight:900}.state-heading h2{font-size:clamp(27px,3.5vw,47px);letter-spacing:-.04em;line-height:1.06;margin-top:8px}.station-tag{background:var(--navy);color:#fff;padding:9px 13px;font-size:10px;letter-spacing:.1em;white-space:nowrap}.station-tag.danger{background:var(--red)}.split{align-items:center}.site-footer{background:var(--navy);color:#adc2c2;padding:22px;text-align:center;font-size:9px;letter-spacing:.12em}}
@layer components{.label{display:inline-flex;width:max-content;padding:6px 9px;color:white;font-size:9px;font-weight:900;letter-spacing:.09em}.label.primary{background:var(--blue)}.label.secondary{background:var(--orange);margin-top:7px}.cover-grid{display:grid;grid-template-columns:minmax(0,1.18fr) minmax(350px,.82fr);gap:32px}.focal{background:var(--cream);padding:14px;border:1px solid var(--line);box-shadow:var(--shadow)}.focal img{width:100%;height:100%;object-fit:cover}.cover-art{background:var(--navy);align-self:center;display:flex;align-items:center;justify-content:center}.cover-art img{height:auto;object-fit:contain}.cover-copy{background:var(--cream);padding:clamp(28px,4vw,54px);border-left:14px solid var(--orange);box-shadow:var(--shadow);display:flex;flex-direction:column;justify-content:center}.station{margin-top:28px;color:var(--blue);font-size:10px;letter-spacing:.18em;font-weight:900}.cover-copy h2{font-size:clamp(34px,4.2vw,61px);line-height:.91;letter-spacing:-.055em;margin:12px 0 23px}.lead{font-size:16px;line-height:1.65}.fact-list{margin-top:28px;border-top:1px solid var(--line)}.fact-list div{display:grid;grid-template-columns:100px 1fr;gap:15px;padding:10px 0;border-bottom:1px solid #d4cab5}.fact-list dt{font-size:10px;color:#727a73}.fact-list dd{font:11px var(--mono)}.boundary-tape{display:grid;grid-template-columns:repeat(3,1fr);gap:9px;margin-top:22px}.boundary-tape span{background:var(--navy);color:white;padding:13px;text-align:center;font-size:9px;letter-spacing:.08em}.host-layout,.permissions-layout,.fallback-layout{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(390px,.9fr);gap:28px}.blueprint{background:#193944}.host-ledger{display:grid;gap:13px}.host-ledger article,.boundary-card,.preserve-list{background:var(--cream);padding:21px;border:1px solid #bdb19b;box-shadow:0 8px 20px rgba(20,43,54,.08)}.host-ledger h3{font-size:26px;margin:14px 0 8px}.host-ledger p{line-height:1.55;color:#53605d}.slot-plate{background:var(--navy);padding:13px;box-shadow:var(--shadow)}.slot-plate img{width:100%}.boundary-card{border-left:8px solid var(--orange)}.boundary-card span,.contract-row span,.io-grid span,.version-strip span,.permission-ledger article>span,.fallback-ledger article>span{display:block;font-size:9px;letter-spacing:.1em;font-weight:900;color:var(--blue)}.boundary-card strong{display:block;margin-top:8px}.boundary-card small{display:block;margin-top:6px;color:#66706c}.preserve-list{display:grid;grid-template-columns:repeat(3,1fr);gap:7px}.preserve-list span{background:#e0ebe4;padding:10px;text-align:center;font-size:9px;font-weight:800}.contract-layout{display:grid;grid-template-columns:minmax(0,1fr) minmax(430px,1fr);gap:28px}.document-pair{display:grid;grid-template-columns:1fr 1fr;gap:14px}.document-pair figure{background:var(--cream);padding:12px;border:1px solid var(--line);box-shadow:var(--shadow)}.document-pair figcaption{font-size:9px;letter-spacing:.1em;font-weight:900;margin-bottom:9px}.document-pair img{width:100%;height:calc(100% - 24px);object-fit:cover}.contract-ledger{background:var(--cream);padding:22px;border:1px solid var(--line);box-shadow:var(--shadow)}.contract-flow{background:var(--navy);padding:10px}.contract-flow img{width:100%}.contract-row{padding:14px 12px;margin-top:12px;border-left:7px solid var(--mint);background:#edf4ef}.contract-row.rejected{border-color:var(--red);background:#fff0ec}.contract-row strong{display:block;margin-top:7px;font:11px var(--mono)}.io-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:13px}.io-grid article{border:1px solid var(--line);padding:13px}.io-grid code{display:block;margin-top:7px;font-size:10px;white-space:normal}.version-strip{display:grid;grid-template-columns:1fr auto;gap:8px 12px;align-items:center;margin-top:13px;background:var(--navy);color:white;padding:13px}.version-strip span{color:#aac8cc}.version-strip b{font:11px var(--mono)}.permission-art{background:#243e46}.permission-ledger{display:grid;gap:12px}.permission-ledger article,.boundary-check,.model-state{background:var(--cream);padding:20px;border:1px solid var(--line);box-shadow:0 8px 20px rgba(20,43,54,.08)}.permission-state{border-left:10px solid var(--red)!important}.permission-state>span{color:var(--red)!important}.permission-ledger h3{font-size:25px;margin:11px 0 7px}.permission-ledger p,.permission-ledger li{line-height:1.5;color:#53605d}.boundary-check{display:grid;grid-template-columns:1fr auto;align-items:center;border:2px dashed var(--red)}.boundary-check span{font-size:10px;font-weight:900}.boundary-check strong{font-size:28px;color:var(--red)}.boundary-check small{grid-column:1/-1;margin-top:4px}.model-state{font-size:10px;font-weight:900;text-align:center;background:var(--navy);color:#fff!important}.fallback-ledger{display:grid;grid-template-columns:1fr 1fr;gap:12px}.fallback-ledger article{background:var(--cream);padding:20px;border-top:8px solid var(--red);box-shadow:0 8px 20px rgba(20,43,54,.08)}.fallback-ledger article p{margin-top:9px;line-height:1.5;color:#53605d}.fallback-card{grid-column:1/-1;border-color:var(--orange)!important}.fallback-card h3{margin:10px 0 6px;font-size:23px}.fallback-foot{grid-column:1/-1;display:grid;grid-template-columns:1fr 1fr;gap:8px}.fallback-foot span{background:var(--navy);color:#fff;padding:12px;text-align:center;font-size:9px;font-weight:900}.replay{border:0;background:var(--orange);color:white;padding:13px 18px;font-weight:900;cursor:pointer}.integration-line{position:relative;display:grid;grid-template-columns:repeat(4,1fr);gap:14px;padding:34px 26px 27px;background:var(--navy);color:white;min-height:475px;overflow:hidden}.line-rail{position:absolute;left:7%;right:7%;top:43%;height:4px;background:#688f93}.line-node{position:relative;z-index:2;background:var(--cream);color:var(--navy);padding:16px;min-height:103px;border-top:8px solid var(--blue);opacity:1;transform:none}.line-node.risk{border-color:var(--red)}.line-node span{font-size:8px;letter-spacing:.1em;font-weight:900}.line-node p{margin-top:10px;font-size:11px;line-height:1.45}.integration-spec-seal{grid-column:2/4;align-self:center;display:grid;grid-template-columns:78px 1fr;gap:0 12px;align-items:center;background:var(--brass);color:var(--navy);padding:12px 18px;box-shadow:0 0 0 4px var(--navy),0 0 0 6px var(--brass);opacity:1;transform:none}.integration-spec-seal img{width:70px;grid-row:1/3}.integration-spec-seal strong{font-size:15px;line-height:1.2}.integration-spec-seal small{font-size:9px;margin-top:4px}.motion-status{position:absolute;left:24px;bottom:12px;font-size:9px;color:#b8cccc}.persistent-boundaries{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;margin-top:13px}.persistent-boundaries span{background:var(--cream);border:1px solid var(--red);padding:10px;text-align:center;font-size:8px;font-weight:900}.release-strip{margin-top:13px;display:grid;grid-template-columns:auto auto 1fr;gap:14px;align-items:center;background:var(--cream);border-left:10px solid var(--red);padding:15px}.release-strip span{font-size:9px;font-weight:900}.release-strip strong{color:var(--red)}.release-strip p{font-size:11px;color:#59635f}.integration-line.is-running .line-node{opacity:0;transform:translateY(12px)}.integration-line.is-running .n1{animation:nodeIn .1s ease 0ms forwards}.integration-line.is-running .n2{animation:nodeIn .1s ease 80ms forwards}.integration-line.is-running .n3{animation:nodeIn .1s ease 160ms forwards}.integration-line.is-running .n4{animation:nodeIn .1s ease 240ms forwards}.integration-line.is-running .n5{animation:nodeIn .1s ease 320ms forwards}.integration-line.is-running .n6{animation:nodeIn .1s ease 400ms forwards}.integration-line.is-running .n7{animation:nodeIn .1s ease 500ms forwards}.integration-line.is-running .integration-spec-seal{opacity:0;transform:scale(.97);animation:integrationSpecComplete .11s ease 650ms forwards}@keyframes nodeIn{to{opacity:1;transform:none}}@keyframes integrationSpecComplete{to{opacity:1;transform:none}}.phone-brief{width:min(390px,100%);margin:0 auto;background:var(--cream);border:10px solid var(--navy);box-shadow:var(--shadow);min-height:720px}.phone-brief header{background:var(--navy);color:white;padding:18px}.phone-brief header p{font-size:8px;letter-spacing:.14em;color:#aac8cc}.phone-brief header h2{font-size:27px;margin:8px 0}.phone-brief header span{font-size:8px;border:1px solid #8eb0b4;padding:5px}.phone-brief section{padding:12px 16px;border-bottom:1px solid #cec2ad}.phone-brief small{display:block;font-size:8px;letter-spacing:.1em;color:#69736e;font-weight:900}.phone-brief strong,.phone-brief p,.phone-brief b{display:block;margin-top:5px;font-size:12px;line-height:1.35}.phone-brief .row{display:grid;grid-template-columns:1fr 1fr}.phone-brief .row div+div{border-left:1px solid #cec2ad;padding-left:12px}.phone-brief .warning{background:#fff0ec;border-left:6px solid var(--red)}.phone-brief footer{background:var(--orange);color:white;padding:14px 16px;font-size:9px;font-weight:900;line-height:1.55}}
@layer responsive{@media(max-width:980px){.site-header{grid-template-columns:1fr}.cover-grid,.host-layout,.contract-layout,.permissions-layout,.fallback-layout{grid-template-columns:1fr}.document-pair{min-height:520px}.integration-line{grid-template-columns:repeat(2,1fr)}.integration-spec-seal{grid-column:1/-1}.persistent-boundaries{grid-template-columns:1fr 1fr}}@media(max-width:620px){.site-header{min-height:auto;padding:25px 18px 22px}.site-header h1{font-size:43px}.subtitle{font-size:14px}.boundary-rack{gap:5px}.boundary-rack span{font-size:8px;padding:7px}.state-nav{overflow-x:auto;grid-template-columns:repeat(7,88px)}.state-nav button{font-size:11px;padding:10px 5px}.review-stage{padding:18px 12px}.visual-state{min-height:640px}.state-heading{align-items:flex-start;flex-direction:column}.state-heading h2{font-size:29px}.station-tag{white-space:normal}.cover-grid{gap:14px}.cover-copy{padding:24px;border-left-width:8px}.cover-copy h2{font-size:35px}.lead{font-size:14px}.boundary-tape{grid-template-columns:1fr}.preserve-list{grid-template-columns:1fr}.document-pair{grid-template-columns:1fr;min-height:auto}.document-pair figure{min-height:360px}.io-grid,.fallback-ledger{grid-template-columns:1fr}.fallback-card,.fallback-foot{grid-column:auto}.fallback-foot{grid-template-columns:1fr}.integration-line{grid-template-columns:1fr;min-height:850px;padding:22px 16px}.line-rail{display:none}.line-node{min-height:auto}.integration-spec-seal{grid-template-columns:58px 1fr}.integration-spec-seal img{width:52px}.persistent-boundaries{grid-template-columns:1fr}.split .replay{width:100%}.release-strip{grid-template-columns:1fr}.site-footer{font-size:7px;padding:16px}}@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important}.integration-line.is-running .line-node,.integration-line.is-running .integration-spec-seal{animation:none!important;opacity:1!important;transform:none!important}}}