/* Formulab 4.1 — White / Blue accent. Neutral surfaces and copy; blue is opt-in. */
:root{
 --bg:#FFFFFF;--surface:#FFFFFF;--ink:#252525;--muted:#626262;--line:#E5E5E5;
 --soft:#F5F5F5;--accent:#2864EF;--accent-ink:#2255CF;--accent-soft:#F5F5F5;
 --comparison:#737373;--charcoal:#272727;--radius:20px;--shadow:0 18px 45px #3A3A3A0C;
 --font:-apple-system,BlinkMacSystemFont,"Segoe UI","Noto Sans CJK KR","Apple SD Gothic Neo","Malgun Gothic",sans-serif;
 --mono:"SFMono-Regular",Consolas,"Liberation Mono",monospace;--serif:Georgia,"Times New Roman",serif;
}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:96px}
body{margin:0;background:var(--bg);color:var(--ink);font:15px/1.75 var(--font);letter-spacing:-.027em;-webkit-font-smoothing:antialiased}
body.modal-open{overflow:hidden}a{color:inherit;text-decoration:none}button,input,select,textarea{font:inherit;letter-spacing:inherit}
button{border:0;background:none;color:inherit;cursor:pointer}button:disabled{cursor:not-allowed;opacity:.5}
button,a,input,select,textarea,summary{touch-action:manipulation;-webkit-tap-highlight-color:transparent}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible,summary:focus-visible{outline:3px solid var(--accent);outline-offset:4px}
button:focus:not(:focus-visible){outline:none}[hidden]{display:none!important}h1,h2,h3,p{margin:0;word-break:keep-all;overflow-wrap:anywhere}
::selection{background:#DDDDDD;color:var(--ink)}.container{width:min(1224px,calc(100% - 64px));margin-inline:auto}
.icon{width:20px;height:20px;fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round;flex-shrink:0}
.svg-library{position:absolute;width:0;height:0;overflow:hidden}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.skip-link{position:fixed;top:-80px;left:16px;z-index:200;padding:10px 16px;background:var(--ink);color:white;border-radius:9px}.skip-link:focus{top:10px}
main:focus{outline:none}.mobile-only{display:none}.noscript-message{padding:12px 22px;font-size:13px;background:var(--soft);text-align:center}
/* A compact service-navigation header. Never a section-anchor menu. */
.site-header{position:sticky;top:0;height:80px;z-index:30;background:#FFFFFFF2;border-bottom:1px solid #ECECEC;backdrop-filter:blur(18px)}
.header-inner{height:100%;display:flex;align-items:center;gap:25px;position:relative}
.brand{display:inline-flex;align-items:center;gap:9px;white-space:nowrap;line-height:1;font-size:29px;font-weight:750;letter-spacing:-1.35px}
.brand-mark{display:grid;place-items:center;width:34px;height:36px;color:var(--ink);flex-shrink:0}.brand-mark svg{width:34px;height:36px;fill:currentColor;stroke:none}
.brand-wordmark{padding-bottom:2px}.header-caption{font:11px var(--mono);color:#767676;letter-spacing:.04em;padding-left:25px;border-left:1px solid var(--line)}
.service-navigation{display:flex;align-items:center;gap:14px;margin-left:auto;min-width:0}.service-quick-links{display:flex;gap:5px}
.service-quick-link{display:inline-flex;align-items:center;gap:7px;min-height:44px;padding:8px 12px;font-size:13px;font-weight:550;color:#595959;border-radius:10px;white-space:nowrap}
.service-quick-link .icon{width:14px;height:14px}.service-quick-link:hover{color:var(--ink);background:var(--soft)}
.service-disclosure{position:relative;border:0}.service-disclosure>summary{display:flex;align-items:center;justify-content:center;gap:13px;min-height:44px;padding:9px 16px;list-style:none;cursor:pointer;border:1px solid var(--line);border-radius:12px;background:var(--surface);font-size:13px;font-weight:600;white-space:nowrap}
.service-disclosure>summary::-webkit-details-marker{display:none}.service-disclosure>summary:hover,.service-disclosure[open]>summary{background:var(--soft);color:var(--ink);border-color:#D6D6D6}
.service-chevron{width:7px;height:7px;border:solid currentColor;border-width:0 1.5px 1.5px 0;transform:translateY(-2px) rotate(45deg);transition:transform .2s}
.service-disclosure[open] .service-chevron{transform:translateY(2px) rotate(225deg)}
.service-menu-panel{position:absolute;right:0;top:calc(100% + 12px);width:365px;max-width:calc(100vw - 32px);max-height:min(530px,calc(100dvh - 107px));padding:16px;overflow:auto;overscroll-behavior:contain;border:1px solid var(--line);border-radius:19px;background:#FFFFFF;box-shadow:0 20px 65px #35353525;scrollbar-width:thin}
.service-group-title{display:block;margin:2px 9px 8px;font-size:11px;font-weight:600;color:var(--muted)}.service-list{list-style:none;margin:0;padding:0}
.service-menu-item{display:flex;align-items:center;gap:12px;min-height:75px;padding:12px 10px;border-radius:12px}a.service-menu-item:hover,a.service-menu-item:focus-visible{background:var(--soft)}
.service-menu-icon{width:39px;height:39px;display:grid;place-items:center;background:var(--soft);color:var(--ink);border-radius:12px;flex-shrink:0}.service-menu-icon .icon{width:20px;height:20px}
.service-menu-copy{display:grid;gap:3px;min-width:0;flex:1}.service-menu-copy strong{font-size:15px;font-weight:600;overflow-wrap:anywhere}.service-menu-copy>span{font-size:12px;color:var(--muted)}
.service-menu-item>.icon{width:16px;height:16px;color:var(--ink)}.upcoming-title{border-top:1px solid var(--line);padding-top:15px;margin-top:9px}
.is-planned .service-menu-icon{background:#F4F4F4;color:#777777}.service-menu-badge{font-size:11px;border:1px solid var(--line);border-radius:6px;padding:3px 7px;white-space:nowrap;color:var(--muted)}
.service-menu-note{display:block;margin:10px 9px 2px;border-top:1px solid var(--line);padding-top:12px;font-size:12px;color:var(--muted);line-height:1.8}
.motion-toggle{display:grid;place-items:center;width:38px;height:44px;border-radius:12px;color:#737373;flex-shrink:0}.motion-toggle:hover{background:var(--soft);color:var(--ink)}.motion-toggle .icon{width:16px;height:16px}
#motion-label{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0)}
/* White research-space hero. Preserve the existing F / equals geometry. */
.hero{display:grid;grid-template-columns:1.08fr 1fr;gap:25px;align-items:center;min-height:541px;margin-top:24px;padding:41px 48px 43px;position:relative;border-radius:30px;border:1px solid #EAEAEA;background:#FAFAFA}
.hero-copy{min-width:0;position:relative;z-index:1}.eyebrow{display:flex;align-items:center;gap:9px;font:600 11px/1.65 var(--mono);letter-spacing:.06em;color:var(--ink);margin-bottom:12px}
.hero .eyebrow{font:550 12px/1.7 var(--font);letter-spacing:0;margin-bottom:21px}.eyebrow-line{width:6px;height:6px;border-radius:2px;background:#999999;box-shadow:none}
h1{font-size:51px;font-weight:730;line-height:1.38;letter-spacing:-.065em;margin-bottom:24px}h1>span{color:var(--ink)}
.hero-description{font-size:16px;line-height:1.9;color:#555555;margin-bottom:12px}.hero-description strong{color:var(--ink);font-weight:600}.hero-subdescription{font-size:13px;line-height:1.95;color:var(--muted)}
.hero-notes{display:flex;align-items:center;gap:16px;flex-wrap:wrap;margin-top:22px;font-size:11px;color:#686868}.hero-notes>span{display:flex;gap:6px;align-items:center}.hero-notes .icon{width:14px;height:14px;color:var(--ink)}
.hero-proof-link{display:inline-flex;align-items:center;gap:10px;min-height:44px;margin-top:19px;padding:8px 12px 8px 8px;background:#FFFFFF;border:1px solid var(--line);border-radius:12px;font-size:12px;font-weight:600;color:var(--ink);transition:background .2s,box-shadow .2s}
.hero-proof-link:hover{background:#FFFFFF;box-shadow:0 5px 16px #4848480D}.round-arrow{display:grid;place-items:center;width:28px;height:28px;border-radius:8px;background:var(--accent);color:#FFFFFF}.round-arrow .icon{width:15px;height:15px}.hero-proof-link>.icon{width:14px;height:14px;margin-left:6px}
.hero-edition{display:flex;gap:13px;margin-top:21px;font:11px var(--mono);letter-spacing:.045em;color:#6C6C6C}.hero-edition>span+span{border-left:1px solid #D0D0D0;padding-left:13px}
.hero-visual{position:relative;min-width:0;height:418px;isolation:isolate;--tilt-x:0px;--tilt-y:0px}
.visual-grid{position:absolute;inset:24px -3px 0;background-image:linear-gradient(#8C8C8C23 1px,transparent 1px),linear-gradient(90deg,#8C8C8C23 1px,transparent 1px);background-size:32px 32px;mask-image:radial-gradient(ellipse at 50% 48%,#000000 9%,transparent 73%);z-index:-2}
.art-topline{display:flex;justify-content:space-between;align-items:center;position:absolute;inset:0 8px auto;font:11px var(--mono);letter-spacing:.04em;color:#747474}
.formula-tile{position:absolute;left:47%;top:55px;width:244px;height:238px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:13px;border:1px solid #FFFFFF;border-radius:36px;background:linear-gradient(145deg,#FFFFFF,#FAFAFA 48%,#E8E8E8);box-shadow:inset 1px 1px 0 #FFFFFF,inset -1px -2px 1px #DDDDDD69,14px 24px 42px #00000012;transform:translateX(-50%) rotate(-11deg);animation:crystal-float 8s ease-in-out infinite;will-change:transform;z-index:1;backdrop-filter:blur(5px)}
.formula-tile:before{content:"";position:absolute;inset:9px;border:1px solid #DADADA80;border-radius:28px;pointer-events:none}.hero-symbol{width:114px;height:114px;color:var(--ink);filter:drop-shadow(0 6px 0 #00000008);overflow:visible;stroke:none}
.tile-label{font:11px var(--mono);letter-spacing:.025em;color:#676767}.tile-caption{font:11px var(--mono);letter-spacing:-.045em;color:#6A6A6A}
.orbit{position:absolute;border:1px solid #D6D6D6;border-radius:31%;pointer-events:none;z-index:-1}.orbit-one{width:300px;height:265px;left:calc(47% - 150px);top:42px;transform:rotate(26deg)}.orbit-two{width:276px;height:276px;left:calc(47% - 138px);top:43px;border-style:dashed;border-color:#DEDEDE;animation:orbit-turn 60s linear infinite}
.orbit-two:after{content:"";position:absolute;left:15%;top:5%;width:8px;height:8px;background:#B8B8B8;border:2px solid #FAFAFA;border-radius:50%;box-shadow:0 0 0 3px #EDEDED}
.formula-paper{position:absolute;right:0;top:129px;width:139px;padding:17px 13px 12px;background:#F1F1F1;box-shadow:0 12px 25px #0000000B;border:1px solid #E1E1E1;border-radius:18px;color:var(--ink);transform:rotate(9deg);z-index:2;animation:note-float 7s ease-in-out infinite}
.formula-paper>span{display:block;font:11px var(--mono);letter-spacing:-.08em;color:var(--muted);line-height:1.7}.formula-paper strong{display:block;font:italic 35px/1.5 var(--serif);letter-spacing:-2px}.formula-paper strong em{font-size:24px;font-weight:400;margin-left:5px}.formula-paper>div{font-size:11px;letter-spacing:-.07em;color:var(--muted);white-space:nowrap}.paper-points{display:flex;gap:6px;align-items:center;margin-top:12px}.paper-points>i{width:8px;height:8px;border:1px solid #C9C9C9;border-radius:3px;background:#DDDDDD}.paper-points>i:nth-child(3){height:13px;background:#AAAAAA}
.art-corner{position:absolute;left:5%;top:168px;display:grid;place-items:center;width:42px;height:44px;border-radius:13px;background:#FFFFFFA6;border:1px solid #E4E4E4;color:#757575;font:28px var(--serif);transform:rotate(-12deg)}
.live-evidence{position:absolute;left:50%;bottom:19px;width:min(359px,98%);padding:13px 15px 9px;background:#FFFFFF;border:1px solid #E6E6E6;border-radius:18px;box-shadow:0 14px 37px #0000000D;transform:translateX(-50%);z-index:3}
.live-evidence-top{display:flex;align-items:center;gap:8px;margin-bottom:9px}.live-state{display:flex;align-items:center;gap:6px;color:#656565;font-size:11px}.live-state[data-state="running"]{color:var(--ink)}.small-dot{display:inline-block;width:5px;height:5px;border-radius:50%;background:currentColor;flex-shrink:0}
.mini-terms{font:11px var(--mono);color:#767676;margin-left:auto}.mini-control{width:32px;height:32px;display:grid;place-items:center;color:var(--ink);background:var(--soft);border-radius:10px;flex-shrink:0}.mini-control:hover{background:#E9E9E9}.mini-control .icon{width:14px;height:14px}
.mini-calculation{display:grid;grid-template-columns:1fr 1fr 43px;gap:7px;align-items:center}.mini-method{display:flex;align-items:center;gap:5px;font-size:11px;color:#6D6D6D;margin-bottom:4px}.legend-dot{width:5px;height:5px;border-radius:50%;display:inline-block}.blue-dot{background:var(--accent)}.teal-dot{background:var(--comparison)}
.mini-calculation strong{display:block;font:500 16px/1.45 var(--mono);font-variant-numeric:tabular-nums;letter-spacing:-.06em;color:var(--ink)}.mini-calculation>div:nth-child(2) strong{color:var(--ink)}
#mini-chart{width:43px;height:37px;overflow:visible}#mini-chart path{fill:none;stroke-width:1.8;stroke-linejoin:round;stroke-linecap:round}#mini-path-one{stroke:var(--accent)}#mini-path-two{stroke:var(--comparison);stroke-dasharray:4 3}
.mini-note{display:flex;align-items:center;justify-content:space-between;gap:6px;margin-top:9px;padding-top:7px;border-top:1px solid #EDEDED;font-size:11px;color:#747474}.mini-note button{font-size:11px;color:#5A5A5A;min-height:28px;padding:0}.mini-note button:hover{color:var(--ink)}
.visual-coordinate{position:absolute;font-size:11px;color:#6A6A6A}.coord-bottom{right:7%;bottom:-4px}
.brand-bridge{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:19px 4px 20px;border-bottom:1px solid var(--line);font-size:12px;color:#666666}.bridge-label{display:flex;align-items:center;gap:12px}.bridge-label:before{content:"";width:18px;height:2px;background:var(--soft)}.bridge-flow{display:flex;align-items:center;gap:18px}.bridge-flow>span{display:flex;gap:7px;align-items:center}.bridge-flow>span>.icon{width:15px;height:15px;color:var(--ink)}.bridge-flow>.icon{width:12px;height:12px;color:#8E8E8E}
/* The services grow in one grid; the brand introduction lives in its own side rail. */
.section{padding-block:53px}.section-heading{display:flex;align-items:flex-end;justify-content:space-between;gap:30px;margin-bottom:24px}.section-heading h2{font-size:28px;font-weight:680;line-height:1.5;letter-spacing:-.048em}.section-no{display:inline-grid;place-items:center;min-width:23px;height:23px;border:1px solid #DADADA;border-radius:7px;font-size:11px;margin-right:3px}.section-side{font-size:13px;color:var(--muted);line-height:1.9;max-width:350px}
.services-section{display:grid;grid-template-columns:237px minmax(0,1fr);gap:0 30px;align-items:start}.services-section>.section-heading{display:block;grid-row:1/4;margin:0;padding-top:6px}.services-section .section-heading h2{font-size:29px;line-height:1.5}.services-section .section-side{margin-top:16px;font-size:13px;line-height:1.9}.services-section .section-side br{display:none}
.channel-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,300px),1fr));gap:16px;min-width:0}.channel-card{display:flex;flex-direction:column;position:relative;min-width:0;overflow:hidden;padding:23px;background:#FFFFFF;border:1px solid #E4E4E4;border-radius:20px;transition:transform .22s,border-color .22s,box-shadow .22s}
.channel-card:hover,.channel-card:focus-within{transform:translateY(-3px);border-color:#C5C5C5;box-shadow:var(--shadow)}.channel-card[data-status="planned"]{background:#FAFAFA}
.channel-card-top{display:flex;align-items:center;gap:10px;margin-bottom:21px}.channel-sequence{font:11px var(--mono);letter-spacing:.01em;color:#717171}.channel-icon{display:none}.badge{margin-left:auto;border:1px solid #E5E5E5;border-radius:6px;padding:3px 7px;font-size:11px;white-space:nowrap;color:#5D5D5D;background:#F6F6F6}.channel-card[data-status="planned"] .badge{color:#6F6F6F;border-color:#E4E4E4;background:#F6F6F6}
.channel-art{display:block;position:absolute;right:22px;top:56px;width:71px;height:71px;border:1px solid #E5E5E5;background:#F5F5F5;border-radius:20px;pointer-events:none;transform:rotate(9deg);color:#606060;isolation:isolate;overflow:hidden}.channel-art>span{position:absolute;inset:0;display:grid;place-items:center;font:italic 25px var(--serif);letter-spacing:-2px}.channel-art>i{display:none}.channel-card[data-status="planned"] .channel-art{background:#F4F4F4;border-color:#E5E5E5;color:#757575}
.channel-card h3{font-size:25px;font-weight:680;letter-spacing:-.045em;line-height:1.55;padding-right:80px;min-height:40px}.channel-korean{font-size:12px;color:#6E6E6E;margin-bottom:17px;padding-right:65px}.channel-description{font-size:13px;color:#646464;line-height:1.85;margin-bottom:18px;flex:1;max-width:440px}.channel-tags{display:flex;flex-wrap:wrap;gap:5px;margin-bottom:21px}.channel-tags>span{font-size:11px;background:#F6F6F6;color:#6C6C6C;padding:3px 7px;border-radius:6px}
.channel-bottom{border-top:1px solid #EDEDED;padding-top:11px;display:flex;align-items:center;justify-content:space-between;gap:8px;flex-wrap:wrap}.channel-link{display:inline-flex;align-items:center;gap:7px;min-height:40px;font-size:12px;font-weight:600;color:var(--accent-ink);padding:0}.channel-link .icon{width:15px;height:15px;transition:transform .2s}.channel-link:hover .icon{transform:translate(2px,-2px)}.channel-card[data-status="planned"] .channel-link{color:#6F6F6F}.service-address{font:11px var(--mono);color:#747474;letter-spacing:-.025em}.service-address.is-plan{font:11px var(--font)}
.channel-footnote{font-size:11px;color:#707070;margin-top:12px;line-height:1.8;grid-column:2}.next-direction{grid-column:2;display:flex;gap:12px;align-items:center;margin-top:15px;padding:15px 18px;border:1px solid var(--line);border-radius:13px;background:#FFFFFF}.next-mark{font:28px var(--mono);color:#909090}.next-direction strong{font-size:13px;font-weight:550;color:#535353}.next-direction p{font-size:12px;color:#727272;line-height:1.75;margin-top:2px}.next-direction .text-button{margin-left:auto;white-space:nowrap}.text-button{display:inline-flex;align-items:center;gap:8px;padding:3px 0;min-height:38px;text-align:left;font-size:12px;font-weight:500;color:#616161}.text-button:hover{color:var(--ink)}.text-button .icon{width:14px;height:14px}
/* The live proof is lightweight and real, shown on a clean laboratory surface. */
.proof-section{padding-block:43px 23px;border-top:1px solid #E9E9E9;border-bottom:1px solid #E9E9E9;background:#FAFAFA}
.proof-layout{display:grid;grid-template-columns:1fr 1.3fr;gap:61px;align-items:center}.proof-copy{min-width:0}.proof-copy h2{font-size:32px;font-weight:680;letter-spacing:-.05em;line-height:1.5;margin-bottom:17px}.proof-copy h2 span{color:var(--ink)}.proof-copy>p:not(.eyebrow){font-size:14px;line-height:1.95;color:#626262}.proof-copy .proof-context{font-size:12px!important;line-height:1.9!important;margin-top:13px;color:#717171!important}.proof-copy .text-button{margin-top:13px}
.proof-console{background:#FFFFFF;border:1px solid #E2E2E2;border-radius:22px;box-shadow:0 12px 30px #00000006;padding:21px 24px 16px;min-width:0}.proof-console-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:17px}.console-label{display:inline-flex;align-items:center;gap:8px;font-size:12px;color:#545454;font-weight:600}.console-label .small-dot{color:var(--ink)}.inline-state{font-size:11px;padding:3px 8px;background:var(--soft);color:#616161;border-radius:5px}
.proof-reference{display:flex;align-items:center;justify-content:space-between;gap:10px;padding-bottom:14px;border-bottom:1px solid #EAEAEA;font-size:11px;color:#717171}.proof-reference strong{font:500 14px var(--mono);color:#5D5D5D;letter-spacing:-.02em}
.proof-row{display:grid;grid-template-columns:1fr 1fr;align-items:center;gap:14px;padding:17px 0;border-bottom:1px solid #ECECEC}.proof-method{display:grid;grid-template-columns:24px 1fr;gap:4px 8px;align-items:center;font-size:12px;color:#545454}.method-index{width:23px;height:24px;display:grid;place-items:center;border-radius:6px;background:var(--soft);font:11px var(--mono);color:var(--ink);grid-row:span 2}.method-index.teal{color:var(--comparison);background:#F2F2F2}.proof-method code{font:11px var(--mono);line-height:1.6;color:#7C7C7C;overflow-wrap:anywhere}.proof-result{text-align:right;min-width:0}.proof-result>strong{font:500 21px var(--mono);letter-spacing:-.04em;display:block;color:var(--ink);font-variant-numeric:tabular-nums}.proof-result.teal>strong{color:var(--ink)}.proof-result>span{display:block;font-size:11px;color:#737373;margin-top:5px}.proof-result>span>code{font:11px var(--mono);margin-left:6px;color:#616161}
.proof-insight{display:flex;align-items:center;justify-content:space-between;gap:10px;padding-top:13px;font-size:11px;color:#656565}.proof-insight>span:last-child{font:11px var(--mono);white-space:nowrap}.inline-progress{height:3px;background:#F1F1F1;border-radius:5px;overflow:hidden;margin-top:11px}.inline-progress>span{display:block;width:0;height:100%;background:var(--accent);transition:width .12s linear}
.proof-controls{display:flex;align-items:center;gap:7px;flex-wrap:wrap;margin-top:12px}.preset-group{display:flex;gap:2px;border-radius:9px;padding:3px;background:#F4F4F4}.preset-group button{padding:7px 10px;min-height:35px;font-size:11px;color:#6B6B6B;border-radius:7px;white-space:nowrap}.preset-group button[aria-pressed="true"]{background:#FFFFFF;color:var(--ink);font-weight:650;box-shadow:0 1px 4px #47474717}.preset-group button:hover{background:#FFFFFF}.inline-pause{width:38px;height:41px;display:grid;place-items:center;color:var(--ink);border-radius:9px}.inline-pause:hover{background:var(--soft)}.inline-pause .icon{width:16px;height:16px}.proof-detail{display:inline-flex;align-items:center;gap:7px;font-size:11px;min-height:41px;margin-left:auto;color:#606060;white-space:nowrap}.proof-detail .icon{width:14px;height:14px}.proof-detail:hover{color:var(--ink)}
.proof-footnote{display:flex;align-items:center;justify-content:space-between;gap:16px;font-size:11px;color:#6E6E6E;margin-top:23px;line-height:1.8}.proof-footnote>span:first-child{display:flex;gap:6px;align-items:center}.proof-footnote .icon{width:14px;height:14px;color:#696969}
/* Principles are a compact row of editorial cards, without repeating brand copy. */
.principles-section{padding-block:47px 31px}.compact-heading h2{font-size:27px}.principles-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:17px}.principle{padding:22px 23px;background:#FFFFFF;border:1px solid #E7E7E7;border-radius:17px}.principle-number{display:inline-grid;place-items:center;font:11px var(--mono);color:var(--ink);width:28px;height:28px;border-radius:8px;background:var(--soft);margin-bottom:13px}.principle h3{font-size:16px;line-height:1.6;font-weight:600;margin-bottom:9px}.principle p{font-size:13px;line-height:1.9;color:var(--muted);margin-bottom:9px}.principle .text-button{font-size:11px}
.faq-section{display:grid;grid-template-columns:1fr 1.7fr;gap:55px;padding-block:16px 36px}.faq-section h2{font-size:24px;line-height:1.5;letter-spacing:-.045em;font-weight:650}.faq-list{border-top:1px solid var(--line)}.faq-list details{border-bottom:1px solid var(--line)}.faq-list summary{display:flex;align-items:center;justify-content:space-between;gap:16px;list-style:none;cursor:pointer;font-size:13px;line-height:1.75;color:#555555;padding:17px 0;font-weight:500}.faq-list summary::-webkit-details-marker{display:none}.faq-list summary>span{font-size:21px;font-weight:400;color:#858585;transition:transform .2s}.faq-list details[open] summary>span{transform:rotate(45deg)}.faq-list p{font-size:13px;line-height:1.9;color:var(--muted);padding:0 20px 19px 0}
.inquiry-strip{display:flex;align-items:center;gap:16px;border:1px solid #E5E5E5;border-radius:16px;padding:21px 24px;background:#FAFAFA}.inquiry-mark{width:39px;height:39px;display:grid;place-items:center;color:#6B6B6B;background:#FFFFFF;border:1px solid #E6E6E6;border-radius:12px;flex-shrink:0}.inquiry-strip h2{font-size:16px;font-weight:600;letter-spacing:-.03em;line-height:1.7;margin-bottom:3px}.inquiry-strip p{font-size:12px;color:#727272;line-height:1.85}
.button{display:inline-flex;justify-content:center;align-items:center;gap:9px;min-height:44px;padding:11px 17px;border-radius:10px;font-size:13px;font-weight:550;line-height:1.5;transition:background .2s,box-shadow .2s}.button .icon{width:16px;height:16px}.button-primary{background:var(--accent);color:#FFFFFF}.button-primary:hover{background:var(--accent-ink)}.button-plain{background:#F2F2F2;color:#5E5E5E}.button-plain:hover{background:#EAEAEA}.button-inquiry{margin-left:auto;border:1px solid #DFDFDF;background:#FFFFFF;color:#606060;white-space:nowrap;font-size:12px;min-height:42px}.button-inquiry:hover{background:#FBFBFB;border-color:#C5C5C5}
/* A condensed signature closes the story; inquiry remains secondary. */
.site-footer{background:#FAFAFA;border:1px solid #E5E5E5;border-radius:23px;margin-block:30px 24px;padding:23px 28px 18px;color:var(--ink);overflow:hidden}
.footer-signature{display:flex;justify-content:space-between;align-items:center;padding-bottom:26px;margin-bottom:22px;border-bottom:1px solid #E3E3E3}.footer-signature>span{font:500 36px/1.17 var(--font);letter-spacing:-1.2px;color:var(--ink)}.footer-signature svg{width:88px;height:88px;color:#B2B2B2;transform:rotate(-7deg);opacity:.9}
.footer-top{display:flex;align-items:center;gap:22px;padding-bottom:18px}.site-footer .brand{font-size:23px;gap:6px}.site-footer .brand-mark{width:27px;height:29px;color:var(--ink)}.site-footer .brand-mark svg{width:27px;height:29px}.footer-top>p{font-size:12px;color:var(--muted)}.footer-service-links{display:flex;flex-wrap:wrap;gap:15px;margin-left:auto;font-size:12px;color:var(--accent-ink)}.footer-service-links a{display:inline-flex;align-items:center;gap:6px;min-height:42px}.footer-service-links .icon{width:13px;height:13px}.footer-service-links a:hover{color:var(--accent)}
.footer-bottom{display:flex;align-items:center;gap:20px;padding-top:12px;border-top:1px solid #E3E3E3;font-size:11px;color:var(--muted)}.footer-links{display:flex;gap:19px;margin-left:auto}.footer-links button{font-size:11px;min-height:34px;padding:3px 0;color:var(--muted)}.footer-links button:hover{color:var(--ink)}.footer-bottom>span:last-child{font:11px var(--mono);letter-spacing:.02em}
/* Motion is decorative, independently pausable, and not needed to read the page. */
@keyframes crystal-float{0%,100%{transform:translate(calc(-50% + var(--tilt-x)),var(--tilt-y)) rotate(-11deg)}50%{transform:translate(calc(-50% + var(--tilt-x)),calc(-7px + var(--tilt-y))) rotate(-8deg)}}
@keyframes note-float{0%,100%{transform:translateY(0) rotate(9deg)}50%{transform:translateY(-6px) rotate(6deg)}}
@keyframes orbit-turn{from{transform:rotate(23deg)}to{transform:rotate(383deg)}}@keyframes reveal-in{from{opacity:.4;transform:translateY(12px)}to{opacity:1;transform:none}}@keyframes dialog-enter{from{opacity:.3;transform:translateY(6px)}to{opacity:1;transform:none}}
.is-revealed{animation:reveal-in .55s ease-out both}body.motion-paused *,body.motion-paused *::before,body.motion-paused *::after,body.is-background *,body.is-background *::before,body.is-background *::after{animation-play-state:paused!important}
body.motion-paused .is-revealed{animation:none}body.motion-paused dialog[open],body.is-background dialog[open]{animation:none;opacity:1;transform:none}body.visual-offscreen .hero-visual *{animation-play-state:paused!important}body.motion-paused .channel-card:hover,body.motion-paused .channel-card:focus-within{transform:none}
body:not(.js-ready) [data-open-lab],body:not(.js-ready) [data-open-inquiry],body:not(.js-ready) [data-dialog],body:not(.js-ready) #motion-toggle,body:not(.js-ready) #mini-toggle,body:not(.js-ready) .proof-controls{display:none!important}
.empty-services{border:1px solid var(--line);border-radius:15px;padding:24px;font-size:14px;color:var(--muted)}
/* Responsive layout changes, never a transform-scaled page. */
@media(min-width:1500px){.hero{min-height:557px;padding-block:47px}h1{font-size:55px}}
@media(max-width:1180px){
 .header-caption{display:none}.hero{padding:35px 34px;gap:18px;min-height:520px;background:#FAFAFA;border:1px solid #EAEAEA}h1{font-size:44px}.hero-description{font-size:14px;color:#555555}.hero-subdescription{font-size:12px;color:var(--muted)}.hero-visual{height:405px}.formula-tile{width:219px;height:220px;top:55px;background:linear-gradient(145deg,#FFFFFF,#FAFAFA 48%,#E8E8E8);border:1px solid #FFFFFF;box-shadow:inset 1px 1px 0 #FFFFFF,inset -1px -2px 1px #DDDDDD69,14px 24px 42px #00000012}.hero-symbol{width:100px;height:100px;color:var(--ink);filter:drop-shadow(0 6px 0 #00000008)}.tile-caption{letter-spacing:-.075em}.formula-paper{width:124px;right:-4px;top:120px;padding:15px 10px;background:#F1F1F1;color:var(--ink);border:1px solid #E1E1E1;box-shadow:0 12px 25px #0000000B}.formula-paper>span{font-size:11px;color:var(--muted)}.formula-paper>div{font-size:11px;letter-spacing:-.09em;color:var(--muted)}.formula-paper strong{font-size:31px}.formula-paper strong em{font-size:23px}.orbit-one{width:258px;height:241px;left:calc(47% - 129px);top:40px}.orbit-two{width:250px;height:250px;left:calc(47% - 125px);border-color:#DEDEDE}.live-evidence{width:99%;padding:12px 13px 9px;background:#FFFFFF;border:1px solid #E6E6E6;box-shadow:0 14px 37px #0000000D}.mini-calculation{grid-template-columns:1fr 1fr 36px}.mini-calculation strong{font-size:15px;color:var(--ink)}#mini-chart{width:36px}.art-topline{font-size:11px;letter-spacing:0;left:0;right:0}
 .services-section{grid-template-columns:210px minmax(0,1fr);gap:0 25px}.services-section .section-heading h2{font-size:25px}.channel-grid{grid-template-columns:repeat(auto-fit,minmax(min(100%,250px),1fr));gap:14px}.channel-card{padding:21px}.channel-card h3{font-size:23px}.channel-art{width:60px;height:60px;right:19px;top:56px;border-radius:17px;background:#F5F5F5;color:#606060;border:1px solid #E5E5E5}.channel-korean{font-size:11px}.channel-sequence{font-size:11px;letter-spacing:-.045em}.badge{font-size:11px;padding-inline:5px}.channel-description{font-size:12px}.channel-card h3{padding-right:57px}.channel-korean{padding-right:47px}.channel-bottom{align-items:flex-start;flex-direction:column;gap:0}.service-address{padding-bottom:2px}.proof-layout{gap:32px}.proof-copy h2{font-size:29px}.proof-copy>p:not(.eyebrow){font-size:13px}.proof-result>strong{font-size:19px;color:var(--ink)}.proof-console{padding:20px;border:1px solid #E2E2E2;box-shadow:0 12px 30px #00000006}.principle{padding:20px}.principle h3{font-size:15px}.principle p{font-size:12px}.principle p br{display:none}.footer-bottom>span:last-child{display:none}
}
@media(max-width:950px){
 .container{width:calc(100% - 44px)}.header-inner{gap:14px}.hero{padding:32px 28px;grid-template-columns:1.05fr 1fr;gap:24px;min-height:490px;background:#FAFAFA;border:1px solid #EAEAEA}h1{font-size:38px}.hero .eyebrow{font-size:11px;margin-bottom:16px}.hero-description{font-size:13px;color:#555555}.hero-description br{display:none}.hero-subdescription{font-size:12px;color:var(--muted)}.hero-notes{gap:10px;font-size:11px}.hero-visual{height:380px}.formula-tile{width:185px;height:199px;gap:10px;top:49px;border-radius:28px;background:linear-gradient(145deg,#FFFFFF,#FAFAFA 48%,#E8E8E8);border:1px solid #FFFFFF;box-shadow:inset 1px 1px 0 #FFFFFF,inset -1px -2px 1px #DDDDDD69,14px 24px 42px #00000012}.formula-tile:before{border-radius:22px;border:1px solid #DADADA80}.hero-symbol{width:94px;height:94px;color:var(--ink);filter:drop-shadow(0 6px 0 #00000008)}.tile-label{font-size:11px;letter-spacing:-.07em}.tile-caption{font-size:11px;letter-spacing:-.095em;max-width:163px;text-align:center}.formula-paper{width:111px;right:-4px;top:101px;background:#F1F1F1;color:var(--ink);border:1px solid #E1E1E1;box-shadow:0 12px 25px #0000000B}.formula-paper>span{line-height:1.6;letter-spacing:-.07em;color:var(--muted)}.formula-paper>div:not(.paper-points){white-space:normal}.formula-paper strong{font-size:30px}.orbit-one{width:225px;height:226px;left:calc(47% - 112px);top:36px}.orbit-two{width:226px;height:226px;left:calc(47% - 113px);top:39px;border-color:#DEDEDE}.art-corner{left:0;top:157px;width:33px;height:36px;font-size:24px}.mini-calculation{grid-template-columns:1fr 1fr}.mini-calculation strong{font-size:16px;color:var(--ink)}#mini-chart{display:none}.mini-note>span{font-size:11px}.mini-note{gap:4px}.mini-note button{font-size:11px}.art-topline{font-size:11px;letter-spacing:-.075em}.coord-bottom{right:1%;font-size:11px}.hero-edition{gap:8px;letter-spacing:0}.hero-edition>span+span{padding-left:8px}.hero-proof-link{font-size:11px;gap:7px;color:var(--ink);background:#FFFFFF;border:1px solid var(--line)}.hero-proof-link>.icon{margin-left:0}.bridge-flow{gap:12px}.brand-bridge{font-size:11px}.bridge-label{display:none}.brand-bridge{justify-content:center}.bridge-flow{gap:24px}
 .services-section{display:block}.services-section>.section-heading{display:flex;gap:28px;align-items:end;margin-bottom:24px}.services-section .section-side{margin-top:0;max-width:310px;font-size:12px}.services-section .section-heading h2{font-size:27px}.channel-grid{grid-template-columns:repeat(auto-fit,minmax(min(100%,285px),1fr))}.channel-card{padding:24px}.channel-card h3{font-size:25px}.channel-description{font-size:13px}.channel-bottom{flex-direction:row;align-items:center;gap:8px;flex-wrap:wrap}.channel-art{width:68px;height:68px;right:24px;background:#F5F5F5;color:#606060;border:1px solid #E5E5E5}.proof-layout{grid-template-columns:1fr 1.2fr;gap:27px}.proof-copy h2{font-size:27px}.proof-console{padding:18px;border:1px solid #E2E2E2;box-shadow:0 12px 30px #00000006}.proof-result>strong{font-size:17px;color:var(--ink)}.proof-reference{flex-wrap:wrap;gap:6px}.proof-controls{gap:3px}.preset-group button{padding-inline:7px}.proof-detail{gap:4px}.proof-footnote{flex-wrap:wrap;gap:4px}.principles-grid{gap:12px}.section-side{font-size:12px}.principle{padding:18px}.section-heading h2{font-size:26px}.faq-section{gap:25px}.footer-top{flex-wrap:wrap;gap:10px 19px}.footer-top>p{font-size:11px;color:var(--muted)}.footer-signature>span{font-size:32px;color:var(--ink)}.inquiry-mark{display:none}
}
@media(max-width:720px){
 .header-caption{display:none}.hero{grid-template-columns:1fr;gap:24px;padding:31px 30px 27px;background:#FAFAFA;border:1px solid #EAEAEA}.hero-copy{max-width:100%}.hero h1{font-size:43px;line-height:1.33;margin-bottom:20px}.hero-description{font-size:15px;max-width:480px;color:#555555}.hero-description br{display:block}.hero-subdescription{font-size:13px;color:var(--muted)}.hero .eyebrow{font-size:11px;margin-bottom:18px}.hero-notes{font-size:11px;gap:17px;margin-top:17px}.hero-proof-link{font-size:12px;margin-top:18px;color:var(--ink);background:#FFFFFF;border:1px solid var(--line)}.hero-edition{display:none}.hero-visual{height:360px;width:min(425px,100%);justify-self:center;margin-top:3px}.art-topline{font-size:11px;letter-spacing:.01em;left:6px;right:6px}.formula-tile{top:34px;width:213px;height:205px;left:47%;background:linear-gradient(145deg,#FFFFFF,#FAFAFA 48%,#E8E8E8);border:1px solid #FFFFFF;box-shadow:inset 1px 1px 0 #FFFFFF,inset -1px -2px 1px #DDDDDD69,14px 24px 42px #00000012}.hero-symbol{width:97px;height:97px;color:var(--ink);filter:drop-shadow(0 6px 0 #00000008)}.tile-label{letter-spacing:.015em}.tile-caption{max-width:none;letter-spacing:-.07em}.formula-paper{top:71px;right:0;width:127px;padding:14px 11px;background:#F1F1F1;color:var(--ink);border:1px solid #E1E1E1;box-shadow:0 12px 25px #0000000B}.formula-paper strong{font-size:34px}.formula-paper>div{font-size:11px;white-space:nowrap;color:var(--muted)}.orbit-one{width:258px;height:235px;left:calc(47% - 129px);top:21px}.orbit-two{width:249px;height:249px;left:calc(47% - 124px);top:19px;border-color:#DEDEDE}.art-corner{top:115px;left:3%;width:38px;height:40px;font-size:27px}.live-evidence{width:min(353px,100%);bottom:16px;background:#FFFFFF;border:1px solid #E6E6E6;box-shadow:0 14px 37px #0000000D}.mini-calculation{grid-template-columns:1fr 1fr 42px}.mini-calculation strong{font-size:16px;color:var(--ink)}#mini-chart{display:block;width:42px}.coord-bottom{bottom:-3px;right:4%}.services-section .section-heading h2{font-size:25px}.services-section .section-side{max-width:240px}.proof-layout{grid-template-columns:1fr;gap:24px}.proof-copy h2{font-size:29px}.proof-copy>p:not(.eyebrow){font-size:14px}.proof-copy br{display:none}.proof-copy h2 br{display:block}.proof-console{padding:22px;border:1px solid #E2E2E2;box-shadow:0 12px 30px #00000006}.proof-row{grid-template-columns:1fr 1fr;padding-block:18px}.proof-method{font-size:12px}.proof-result>strong{font-size:22px;color:var(--ink)}.proof-reference{flex-wrap:nowrap}.proof-controls{gap:8px}.preset-group button{padding-inline:11px}.proof-detail{font-size:12px}.principles-grid{grid-template-columns:1fr;gap:12px}.principle{position:relative;padding:20px 22px 15px 64px}.principle-number{position:absolute;left:21px;top:21px}.principle h3{font-size:16px}.principle p{font-size:13px;margin-bottom:3px}.principle p br{display:block}.faq-section{grid-template-columns:1fr;gap:18px}.inquiry-strip{gap:17px;background:#FAFAFA;border:1px solid #E5E5E5}.inquiry-strip h2{font-size:15px}.inquiry-strip p{font-size:12px}.inquiry-strip .button-inquiry{font-size:11px}.footer-top>p{order:2;flex-basis:100%;color:var(--muted)}
}
@media(max-width:600px){
 .container{width:calc(100% - 32px)}.site-header{height:66px;background:#FFFFFFF2;border-bottom:1px solid #ECECEC}.header-inner{gap:8px}.brand{font-size:25px;letter-spacing:-1.15px;gap:6px}.brand-mark,.brand-mark svg{width:30px;height:32px}.service-navigation{position:static;gap:0}.service-quick-links{display:none}.service-disclosure{position:static}.service-disclosure>summary{font-size:12px;min-height:42px;padding:8px 12px;gap:10px;border-radius:10px}.service-menu-panel{top:calc(100% + 5px);right:0;left:0;width:auto;max-width:none;max-height:calc(100dvh - 90px);padding:13px}.motion-toggle{width:31px;height:42px}.motion-toggle .icon{width:15px;height:15px}.hero{margin-top:16px;padding:28px 23px 24px;border-radius:23px;gap:22px;background:#FAFAFA;border:1px solid #EAEAEA}.hero h1{font-size:36px}.hero-description{font-size:13px;line-height:1.9;color:#555555}.hero-subdescription{font-size:12px;color:var(--muted)}.hero-subdescription br{display:none}.hero-visual{height:349px}.art-topline{left:0;right:0;font-size:11px;letter-spacing:-.065em}.formula-tile{width:191px;height:196px;left:45%;top:34px;background:linear-gradient(145deg,#FFFFFF,#FAFAFA 48%,#E8E8E8);border:1px solid #FFFFFF;box-shadow:inset 1px 1px 0 #FFFFFF,inset -1px -2px 1px #DDDDDD69,14px 24px 42px #00000012}.hero-symbol{width:96px;height:96px;color:var(--ink);filter:drop-shadow(0 6px 0 #00000008)}.tile-label{font-size:11px;letter-spacing:-.07em}.tile-caption{font-size:11px;letter-spacing:-.1em}.formula-paper{top:79px;right:-2px;width:112px;padding:13px 9px;background:#F1F1F1;color:var(--ink);border:1px solid #E1E1E1;box-shadow:0 12px 25px #0000000B}.formula-paper strong{font-size:30px}.formula-paper strong em{font-size:22px}.formula-paper>div:not(.paper-points){white-space:normal}.orbit-one{width:225px;height:219px;left:calc(45% - 112px);top:22px}.orbit-two{width:221px;height:221px;left:calc(45% - 110px);top:25px;border-color:#DEDEDE}.art-corner{left:-1px;top:124px;width:33px;height:35px;font-size:25px}.live-evidence{width:100%;padding:11px 12px 8px;border-radius:15px;bottom:18px;background:#FFFFFF;border:1px solid #E6E6E6;box-shadow:0 14px 37px #0000000D}.mini-calculation{grid-template-columns:1fr 1fr}.mini-calculation strong{font-size:16px;color:var(--ink)}#mini-chart{display:none}.mini-note>span{font-size:11px}.mini-note{gap:6px}.coord-bottom{right:0;bottom:-1px;font-size:11px;letter-spacing:-.05em}.brand-bridge{padding-block:16px}.bridge-flow{gap:14px;font-size:11px}.bridge-flow>span{gap:5px}.bridge-flow>span>.icon{width:13px;height:13px}.bridge-flow>.icon{width:10px;height:10px}
 .section{padding-block:34px}.services-section>.section-heading{display:block;margin-bottom:21px;padding-top:0}.section-heading .eyebrow{font-size:11px}.services-section .section-heading h2{font-size:26px}.services-section .section-side{font-size:12px;margin-top:12px;max-width:none;line-height:1.9}.channel-grid{grid-template-columns:1fr;gap:13px}.channel-card{padding:22px;border-radius:18px}.channel-card h3{font-size:26px;padding-right:77px}.channel-korean{font-size:12px;padding-right:58px}.channel-description{font-size:13px;line-height:1.85}.channel-card-top{margin-bottom:20px}.channel-art{right:22px;width:69px;height:69px;top:57px;background:#F5F5F5;color:#606060;border:1px solid #E5E5E5}.channel-sequence{font-size:11px;letter-spacing:.02em}.badge{font-size:11px;padding-inline:7px}.channel-tags{margin-bottom:16px}.channel-bottom{flex-wrap:wrap;gap:0 10px}.channel-link{font-size:12px;color:var(--accent-ink)}.next-direction{flex-wrap:wrap;padding:15px;gap:5px 11px;background:#FFFFFF}.next-mark{align-self:flex-start;font-size:26px}.next-direction>div{flex:1;min-width:0}.next-direction strong{font-size:13px}.next-direction p{font-size:12px;line-height:1.8;margin-top:4px}.next-direction .text-button{margin-left:27px;font-size:11px;min-height:31px}.channel-footnote{font-size:11px;line-height:1.85}
 .proof-section{padding-block:33px 21px}.proof-copy .eyebrow{font-size:11px}.proof-copy h2{font-size:28px}.proof-copy>p:not(.eyebrow){font-size:13px}.proof-copy .proof-context{font-size:12px!important}.proof-copy .text-button{font-size:11px;margin-top:10px}.proof-console{padding:17px 16px 13px;border-radius:17px;border:1px solid #E2E2E2;box-shadow:0 12px 30px #00000006}.proof-console-head{margin-bottom:15px}.console-label,.inline-state{font-size:11px}.proof-reference{flex-wrap:wrap;gap:5px}.proof-reference strong{font-size:13px}.proof-row{padding-block:15px;gap:10px}.proof-method{font-size:11px;grid-template-columns:21px 1fr;gap:4px 6px}.method-index{width:21px;height:22px}.proof-method code{display:none}.proof-result>strong{font-size:17px;color:var(--ink)}.proof-result>span{font-size:11px}.proof-result>span>code{font-size:11px;margin-left:3px}.proof-insight{font-size:11px;padding-top:11px}.proof-insight>span:last-child{font-size:11px}.proof-controls{gap:3px;margin-top:11px}.preset-group{padding:2px;gap:0}.preset-group button{padding-inline:9px;min-height:36px;font-size:11px}.inline-pause{width:32px}.proof-detail{font-size:11px;gap:5px}.proof-footnote{margin-top:19px;font-size:11px;flex-direction:column;align-items:flex-start;gap:6px}.compact-heading{display:block;margin-bottom:20px}.compact-heading h2{font-size:24px}.compact-heading .section-side{font-size:12px;margin-top:11px}.compact-heading .section-side br{display:none}.principles-section{padding-block:33px 27px}.principle{padding:18px 18px 13px 55px}.principle-number{left:17px;top:20px;width:25px;height:25px}.principle p{font-size:12px}.principle p br{display:none}.faq-section{padding-block:7px 27px;gap:16px}.faq-section h2{font-size:23px}.faq-section .eyebrow{font-size:11px;margin-bottom:9px}.faq-list summary{font-size:12px;padding-block:15px}.faq-list p{font-size:12px;padding-right:0}.inquiry-strip{display:block;padding:20px;border-radius:15px;background:#FAFAFA;border:1px solid #E5E5E5}.inquiry-strip h2{font-size:16px;margin-bottom:6px}.inquiry-strip p{font-size:12px}.inquiry-strip .button-inquiry{margin-top:14px;font-size:12px;min-height:42px}.site-footer{margin-block:24px 16px;padding:23px 21px 15px;border-radius:19px;background:#FAFAFA;border:1px solid #E5E5E5;color:var(--ink)}.footer-signature{padding-bottom:20px;margin-bottom:18px;border-bottom:1px solid #E3E3E3}.footer-signature>span{font-size:28px;letter-spacing:-.8px;color:var(--ink)}.footer-signature svg{width:67px;height:67px;color:#B2B2B2}.site-footer .brand{font-size:22px}.footer-top{gap:12px}.footer-top>p{font-size:11px;color:var(--muted)}.footer-service-links{font-size:11px;gap:9px;color:var(--accent-ink)}.footer-bottom{font-size:11px;gap:8px;padding-top:10px;flex-wrap:wrap;color:var(--muted);border-top:1px solid #E3E3E3}.footer-links{gap:14px}.footer-links button{font-size:11px;color:var(--muted)}
}
@media(max-width:359px){
 .container{width:calc(100% - 28px)}.header-inner{gap:5px}.brand{font-size:23px;gap:4px}.brand-mark,.brand-mark svg{width:27px;height:30px}.service-disclosure>summary{padding-inline:9px}.motion-toggle{width:28px}.hero{padding:25px 18px 22px;background:#FAFAFA;border:1px solid #EAEAEA}.hero h1{font-size:31px}.hero .eyebrow{font-size:11px;letter-spacing:-.025em}.hero-description{font-size:13px;color:#555555}.hero-subdescription{font-size:12px;color:var(--muted)}.hero-notes{gap:11px;font-size:11px}.hero-proof-link{font-size:11px;padding-right:8px;gap:6px;color:var(--ink);background:#FFFFFF;border:1px solid var(--line)}.hero-visual{height:326px}.formula-tile{width:169px;height:179px;top:33px;background:linear-gradient(145deg,#FFFFFF,#FAFAFA 48%,#E8E8E8);border:1px solid #FFFFFF;box-shadow:inset 1px 1px 0 #FFFFFF,inset -1px -2px 1px #DDDDDD69,14px 24px 42px #00000012}.hero-symbol{width:80px;height:80px;color:var(--ink);filter:drop-shadow(0 6px 0 #00000008)}.tile-caption{font-size:11px;max-width:139px;line-height:1.4;text-align:center}.tile-label{font-size:11px;letter-spacing:-.09em}.formula-paper{right:-5px;width:98px;top:80px;padding:12px 8px;background:#F1F1F1;color:var(--ink);border:1px solid #E1E1E1;box-shadow:0 12px 25px #0000000B}.formula-paper strong{font-size:27px}.formula-paper strong em{font-size:21px}.formula-paper>span{font-size:11px;line-height:1.5;color:var(--muted)}.formula-paper>div{font-size:11px;color:var(--muted)}.paper-points{gap:5px;margin-top:8px}.paper-points>i{width:7px;height:7px;background:#DDDDDD;border:1px solid #C9C9C9}.art-topline{letter-spacing:-.085em;font-size:11px}.art-topline>span:last-child{display:none}.orbit-one{width:197px;height:202px;left:calc(45% - 98px);top:20px}.orbit-two{width:195px;height:195px;left:calc(45% - 97px);top:26px;border-color:#DEDEDE}.art-corner{left:-6px;width:29px;height:30px;font-size:23px}.live-evidence{padding:10px 9px 7px;bottom:14px;background:#FFFFFF;border:1px solid #E6E6E6;box-shadow:0 14px 37px #0000000D}.mini-calculation strong{font-size:15px;color:var(--ink)}.mini-method{font-size:11px}.mini-note>span{font-size:11px;letter-spacing:-.05em}.coord-bottom{font-size:11px;letter-spacing:-.07em;bottom:-3px}.bridge-flow{gap:9px;font-size:11px}.channel-card{padding:19px}.channel-card h3{font-size:24px}.channel-art{right:19px;background:#F5F5F5;color:#606060;border:1px solid #E5E5E5}.channel-bottom{flex-direction:column;align-items:flex-start;gap:0}.service-address{padding-bottom:3px}.proof-result>strong{font-size:14px;color:var(--ink)}.proof-console{padding:15px 13px;border:1px solid #E2E2E2;box-shadow:0 12px 30px #00000006}.proof-row{gap:4px}.proof-method{font-size:11px;gap:4px}.proof-detail{margin-left:0;min-height:32px}.proof-controls{gap:4px}.preset-group button{padding-inline:10px}.footer-signature>span{font-size:25px;color:var(--ink)}.footer-signature svg{width:56px;height:56px;color:#B2B2B2}.footer-links{gap:12px}.footer-bottom{flex-direction:column;align-items:flex-start;gap:2px;color:var(--muted);border-top:1px solid #E3E3E3}.footer-links{margin-left:0}.footer-top>p{line-height:1.8;color:var(--muted)}.section-heading h2,.services-section .section-heading h2{font-size:24px}
}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{animation:none!important;transition:none!important}.channel-card:hover,.channel-card:focus-within{transform:none}.is-revealed{opacity:1;transform:none}}
@media(forced-colors:active){.brand-mark,.inline-progress{border:1px solid CanvasText}.channel-card,.proof-console,.formula-tile,.hero{border-color:CanvasText}.hero-symbol{color:var(--ink);filter:drop-shadow(0 6px 0 #00000008)}.site-footer{background:#FAFAFA;color:var(--ink);border:1px solid #E5E5E5}.footer-signature>span,.footer-top>p,.footer-bottom,.footer-links button{color:CanvasText}}

/* Native dialogs; the full experiment is requested, not forced into the landing flow. */
dialog{padding:25px;border:1px solid #E6E6E6;border-radius:18px;max-width:550px;width:calc(100% - 36px);max-height:88dvh;color:var(--ink);background:#FFFFFF;box-shadow:0 24px 100px #65656530;overscroll-behavior:contain}dialog::backdrop{background:#1F1F1FAA;backdrop-filter:blur(5px)}dialog[open]{animation:dialog-enter .22s ease-out}.dialog-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:8px;gap:12px}.dialog-header .eyebrow{margin:0;font-size:11px}dialog h2{font-size:24px;line-height:1.55;letter-spacing:-.05em;margin-bottom:12px}.icon-button{width:37px;height:37px;display:inline-grid;place-items:center;padding:0;border-radius:8px;color:#6A6A6A;flex-shrink:0}.icon-button:hover{background:#F9F9F9}.icon-button .icon{width:18px;height:18px}#dialog-content{font-size:13px;line-height:1.9;color:#6A6A6A}#dialog-content p{margin-bottom:14px}#dialog-content h3{font-size:14px;color:#6A6A6A;margin:22px 0 8px}#dialog-content code{font:11px/1.8 var(--mono);background:#F9F9F9;padding:7px 9px;border-radius:6px;display:block;white-space:normal;overflow-wrap:anywhere}.dialog-notice{padding:13px 15px;border-radius:10px;background:#FFFFFF;font-size:12px;color:#656565}.dialog-confirm{width:100%;margin-top:13px;font-size:13px}.lab-dialog{max-width:1000px;padding:24px}.lab-intro{font-size:13px;color:#6A6A6A;margin-bottom:19px}.lab-disclaimer{font-size:11px;line-height:1.8;color:#6A6A6A;margin:14px 0 0}.experiment{border:1px solid #E6E6E6;border-radius:14px;background:#FFFFFF;overflow:hidden}.experiment-top{display:flex;justify-content:space-between;align-items:center;padding:18px 22px;gap:20px;border-bottom:1px solid var(--line)}.experiment-id{font:11px var(--mono);letter-spacing:.07em;color:#6A6A6A;display:block;margin-bottom:5px}.experiment-top h3{font-size:17px;margin:0;font-weight:650;letter-spacing:-.035em}.experiment-status{display:flex;align-items:center;gap:6px;background:#F9F9F9;border-radius:6px;padding:5px 9px;font-size:11px;color:#6A6A6A;font-weight:500;white-space:nowrap}.experiment-status[data-state="running"]{color:#656565;background:#F9F9F9}.experiment-status[data-state="complete"]{color:#656565;background:#F9F9F9}.experiment-status[data-state="paused"]{background:#F9F9F9;color:#535353}.experiment-body{display:grid;grid-template-columns:minmax(0,1fr) 275px}.chart-panel{padding:21px;border-right:1px solid var(--line);min-width:0}.chart-heading{display:flex;justify-content:space-between;align-items:start;gap:12px;margin-bottom:7px;flex-wrap:wrap}.metric-label{font-size:11px;color:#6A6A6A;display:block}.chart-heading .metric-label{font-size:12px;font-weight:600;color:#6A6A6A}.chart-heading p{font-size:11px;color:#6A6A6A;margin:4px 0 0}.chart-container{width:100%;margin-top:15px}.chart-container>svg{display:block;width:100%;height:auto;overflow:visible;min-height:180px}.chart-grid-line{stroke:#F9F9F9;stroke-width:1;stroke-dasharray:3 4}.chart-label{font:11px var(--mono);fill:#6A6A6A}.chart-series-line{fill:none;stroke-width:2.4;stroke-linejoin:round;stroke-linecap:round}.series-leibniz{stroke:var(--accent-ink)}.series-nilakantha{stroke:var(--comparison)}.series-point{stroke:#FFFFFF;stroke-width:2}.point-leibniz{fill:var(--accent-ink)}.point-nilakantha{fill:var(--comparison)}.chart-legend{display:flex;align-items:center;flex-wrap:wrap;gap:12px;font-size:11px;color:#6A6A6A;margin-top:4px}.chart-legend>span{display:inline-flex;align-items:center;gap:6px}.legend-line{width:14px;height:2px;display:inline-block}.blue-line{background:var(--accent)}.teal-line{background:var(--comparison)}.axis-caption{color:#6A6A6A;font-size:11px}.experiment-controls{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:12px;border-top:1px solid var(--line);margin-top:20px;padding-top:16px}.experiment-controls>label{font-size:11px;color:#6A6A6A;display:flex;gap:8px;align-items:center}.experiment-controls select{border:1px solid var(--line);padding:7px 8px;border-radius:7px;color:#6A6A6A;background:#FFFFFF;font-size:12px;min-height:36px;max-width:165px}.run-buttons{display:flex;gap:5px;align-items:center}.run-button{font-size:12px;min-height:37px;padding:9px 13px;border-radius:8px}.run-button .icon{width:14px;height:14px}.results-panel{padding:18px;background:#FFFFFF;min-width:0}.reference-value{padding:0 0 15px}.reference-value .metric-label{margin-bottom:3px}.reference-value>strong{font:500 19px/1.6 var(--mono);letter-spacing:-1px}.result-card{padding:12px;border-radius:9px;border:1px solid #F9F9F9;background:#FFFFFF;margin-bottom:10px}.result-card-label{display:flex;justify-content:space-between;gap:5px;font-size:11px;color:#6A6A6A;margin-bottom:5px;flex-wrap:wrap}.result-card-label>span:first-child{display:inline-flex;align-items:center;gap:6px}.result-term{color:#6A6A6A;font:11px var(--mono)}.result-card>strong{font:500 17px var(--mono);letter-spacing:-.05em;color:var(--ink);font-variant-numeric:tabular-nums}.result-card[data-method="nilakantha"]>strong{color:var(--ink)}.error-row{display:flex;justify-content:space-between;gap:5px;font-size:11px;color:#6A6A6A;margin-top:6px;flex-wrap:wrap}.error-row code{font:11px var(--mono);color:#6A6A6A}.progress-meta{display:flex;justify-content:space-between;gap:8px;margin:13px 0 5px;font-size:11px;color:#6A6A6A;flex-wrap:wrap}.progress-meta>span:last-child{font-family:var(--mono)}progress{width:100%;height:4px;display:block;border:0;border-radius:4px;background:#F9F9F9;accent-color:var(--accent-ink)}progress::-webkit-progress-bar{background:#F9F9F9;border-radius:4px}progress::-webkit-progress-value{background:var(--soft);border-radius:4px}progress::-moz-progress-bar{background:var(--soft);border-radius:4px}.result-note{font-size:11px;color:#6A6A6A;line-height:1.75;margin:10px 0 13px;word-break:keep-all;overflow-wrap:anywhere}.download-button{display:flex;align-items:center;gap:7px;font-size:11px;border:1px solid #E6E6E6;border-radius:7px;padding:9px 10px;width:100%;color:#6A6A6A;background:#FFFFFF;min-height:35px;text-align:left}.download-button .icon{width:13px;height:13px}.download-button>span{margin-left:auto;color:#6A6A6A;font:11px var(--mono)}.download-button:hover:enabled{border-color:var(--accent-ink);color:var(--ink)}.experiment-footer{display:flex;justify-content:space-between;flex-wrap:wrap;gap:5px 15px;border-top:1px solid var(--line);padding:12px 22px;color:#6A6A6A;font-size:11px}
/* Inquiry composer: local draft until the verified receiving address is configured. */
.inquiry-intro{font-size:13px;line-height:1.85;color:#6A6A6A;margin-bottom:20px}.field-label{display:block;font-size:12px;font-weight:550;color:#6A6A6A;margin-bottom:15px}.field-label input,.field-label textarea,.field-label select{display:block;width:100%;margin-top:7px;padding:11px 12px;border:1px solid #E6E6E6;border-radius:9px;background:#FFFFFF;font-size:13px;line-height:1.7;color:var(--ink);font-weight:400}.field-label textarea{resize:vertical;min-height:130px}.field-label input::placeholder,.field-label textarea::placeholder{color:#6A6A6A}.field-help{font-size:11px;color:#6A6A6A;margin:-7px 0 18px}.inquiry-mode{font-size:11px;line-height:1.85;background:#F9F9F9;color:#6A6A6A;padding:11px 13px;border-radius:9px;margin-bottom:17px}.inquiry-actions{display:flex;align-items:center;gap:8px;flex-wrap:wrap}.inquiry-actions .button{font-size:12px;min-height:40px}.inquiry-actions .text-button{margin-left:auto}.inquiry-result{font-size:12px;color:#656565;margin:14px 0 0;line-height:1.8}.copy-fallback{width:100%;height:160px;border:1px solid var(--line);border-radius:8px;margin-top:12px;padding:10px;font-size:12px}
/* Dialog refinement and accessible record explorer. */
dialog{max-height:88vh;max-height:88dvh}dialog h2{margin-bottom:12px}.dialog-header{margin-bottom:12px}.dialog-header .eyebrow{margin-bottom:0}.lab-intro{margin-bottom:18px}#dialog-content p{margin-bottom:14px}.experiment-top h3{margin:0}.result-card-label{margin-bottom:7px}.result-note{margin:11px 0 14px}.reference-value .metric-label{margin-bottom:4px}.history-explorer{padding:17px 21px;background:#FFFFFF;border-top:1px solid var(--line)}.history-explorer label{display:flex;align-items:center;justify-content:space-between;font-size:12px;color:#656565;font-weight:550;gap:12px}.history-explorer output{font:11px var(--mono);color:#656565}.history-explorer input{display:block;width:100%;min-height:35px;accent-color:var(--accent-ink);margin:5px 0 0}.history-explorer p{font-size:11px;color:#6A6A6A;margin:0}.history-reading{display:flex;align-items:center;gap:12px 22px;flex-wrap:wrap;color:#656565;font:11px var(--mono);margin-top:8px;line-height:1.8}.field-label{margin-bottom:16px}.inquiry-intro{margin-bottom:17px}.inquiry-mode{margin-bottom:17px}.field-help{margin-bottom:17px}.field-label input,.field-label textarea,.field-label select{font-size:16px}.inquiry-result{margin-top:13px}.char-counter{font-size:11px;text-align:right;color:#6A6A6A;margin:-10px 0 14px}.copy-fallback{color:var(--ink);background:#FFFFFF}.empty-services{border:1px solid var(--line);border-radius:16px;padding:25px;color:var(--muted);font-size:14px}

/* Final dialog geometry for the neutral identity. */
dialog{border-radius:7px;border-top:1px solid var(--line);background:var(--surface);color:var(--ink)}
dialog::backdrop{background:#1F1F1FAA}.experiment{border-radius:4px}.experiment-top{background:var(--soft)}
.result-card,.dialog-notice,.inquiry-mode,.history-explorer,.icon-button,.download-button{border-radius:4px}.series-nilakantha{stroke-dasharray:5 3}
.result-card>strong{color:var(--ink)}.result-card[data-method="nilakantha"]>strong{color:var(--ink)}
.legend-line{display:inline-block;width:15px;height:2px}.blue-line{background:var(--accent)}.teal-line{background:var(--comparison)}
@media(max-width:860px){.lab-dialog{max-width:740px}.experiment-body{grid-template-columns:1fr}.chart-panel{border-right:0;border-bottom:1px solid var(--line)}.results-panel{display:grid;grid-template-columns:1fr 1fr;gap:0 12px}.reference-value{grid-column:span 2}.progress-meta,progress,.result-note,.download-button{grid-column:span 2}.result-card>strong{font-size:18px;color:var(--ink)}}
@media(max-width:640px){dialog{padding:19px;width:calc(100% - 24px);max-height:90dvh}dialog h2{font-size:22px}.lab-dialog{padding:15px}.lab-dialog h2{font-size:21px}.lab-intro{font-size:12px;line-height:1.8}.lab-disclaimer{font-size:11px}.experiment-top{padding:15px 13px;gap:8px}.experiment-id{font-size:11px;letter-spacing:0}.experiment-top h3{font-size:15px}.experiment-status{font-size:11px}.chart-panel{padding:16px 12px}.chart-container>svg{min-height:205px}.chart-heading{gap:3px}.chart-legend{gap:7px 12px}.experiment-controls{gap:9px;margin-top:16px;padding-top:12px}.experiment-controls select{font-size:11px;max-width:155px}.experiment-controls>label{font-size:11px;gap:7px}.run-buttons{margin-left:auto}.run-button{font-size:11px;padding:9px 10px}.results-panel{padding:13px;gap:0 9px}.reference-value{display:block;padding-bottom:12px}.reference-value>strong{font-size:22px}.result-card{padding:10px;min-width:0}.result-card>strong{font-size:14px;color:var(--ink)}.error-row{font-size:11px}.experiment-footer{padding:11px 13px;font-size:11px;display:block}.experiment-footer>span{display:block}.history-explorer{padding:15px}.history-reading{font-size:11px;gap:4px 12px}.inquiry-intro{font-size:12px}.inquiry-actions .button{font-size:11px;padding-inline:11px}.inquiry-actions .text-button{margin-left:0}.field-label{font-size:12px}.field-label input,.field-label select,.field-label textarea{font-size:16px}}
@media(max-width:359px){.lab-dialog{padding:12px}.result-card>strong{font-size:12px;color:var(--ink)}.history-reading{flex-direction:column;align-items:flex-start}.inquiry-actions .button{font-size:11px}.char-counter{font-size:11px}}

/* Formulab 4.2 — color has a job, white remains the canvas.
   Loaded after identity.css/dialogs.css. No hue changes to large surfaces.
   Cobalt: action / series A. Teal: series B / completed work.
   Amber: planned services / unanswered questions. */
:root {
  --accent: #2864EF;
  --accent-ink: #2255CF;
  --accent-wash: #EEF3FF;
  --comparison: #147D73;
  --teal-wash: #EAF6F1;
  --amber: #996014;
  --amber-wash: #FFF4DE;
  --ink: #252525;
  --muted: #626262;
  --shadow: 0 12px 32px #20202009, 0 3px 8px #20202004;
}
::selection { background: #DCE8FF; color: var(--ink); }
.site-header { height: 76px; }
.header-inner { gap: 22px; }
.brand { font-size: 28px; letter-spacing: -1.35px; }
.header-caption { color: #707070; }
.service-quick-link { color: var(--accent-ink); }
.service-quick-link:hover { background: var(--accent-wash); color: var(--accent-ink); }
.service-disclosure > summary { border-radius: 11px; }
.service-disclosure[open] > summary { border-color: #B9CDFB; background: var(--accent-wash); color: var(--accent-ink); }
.service-menu-panel { box-shadow: 0 18px 54px #20202017; }
.service-menu-icon { background: var(--accent-wash); color: var(--accent-ink); }
.service-menu-item > .icon { color: var(--accent-ink); }
.is-planned .service-menu-icon { background: var(--amber-wash); color: var(--amber); }
.service-menu-badge { background: var(--amber-wash); color: #87530F; border-color: #F1DFC0; }
.service-menu-copy > span { line-height: 1.7; }
.motion-toggle { border: 1px solid transparent; }
.motion-toggle:hover { border-color: var(--line); background: #FAFAFA; }

/* A spacious typographic opening, not a colored hero banner. */
.hero {
  margin-top: 25px;
  padding: 47px 48px 43px;
  min-height: 558px;
  grid-template-columns: 1.08fr 1fr;
  gap: 22px;
  background: linear-gradient(116deg, #FFFFFF 0%, #FAFAFA 72%, #F7F7F7 100%);
  border-color: #E8E8E8;
  border-radius: 28px;
}
.hero h1 { font-size: 53px; line-height: 1.33; letter-spacing: -.062em; font-weight: 720; margin-bottom: 26px; }
.hero h1 > span { color: var(--ink); }
.hero-emphasis { font-style: normal; position: relative; white-space: nowrap; }
.hero-emphasis::after {
  content: ""; position: absolute; left: 2px; right: 3px; bottom: -6px; height: 3px;
  background: var(--accent); opacity: .85; border-radius: 100% 30% 80% 20%; transform: rotate(-1deg);
}
.hero .eyebrow { font: 600 11px/1.6 var(--mono); letter-spacing: .025em; gap: 8px; margin-bottom: 26px; }
.eyebrow-korean { font: 500 11px/1.6 var(--font); letter-spacing: -.02em; margin-left: 4px; padding-left: 12px; border-left: 1px solid #DCDCDC; color: #6B6B6B; }
.eyebrow-line { width: 6px; height: 6px; background: var(--accent); border-radius: 50%; }
.hero-description { font-size: 16px; line-height: 1.95; margin-bottom: 12px; color: #565656; }
.hero-description strong { font-weight: 620; }
.hero-subdescription { font-size: 13px; line-height: 1.95; color: #626262; }
.hero-notes { gap: 18px; margin-top: 22px; font-size: 12px; }
.hero-notes .icon { color: #626262; }
.hero-proof-link {
  min-height: 47px; padding: 9px 16px 9px 11px; margin-top: 20px;
  background: var(--accent); color: #FFFFFF; border-color: transparent; border-radius: 11px;
  box-shadow: 0 3px 7px #2864EF18; font-size: 13px; gap: 9px;
  transition: background .2s, box-shadow .2s, transform .2s;
}
.hero-proof-link:hover { background: var(--accent-ink); box-shadow: 0 7px 18px #2864EF24; transform: translateY(-1px); }
.round-arrow { background: #FFFFFF20; border: 1px solid #FFFFFF25; width: 27px; height: 27px; border-radius: 50%; }
.round-arrow .icon { width: 12px; height: 12px; }
.hero-proof-link > .icon { margin-left: 11px; }
.hero-edition { font-size: 11px; letter-spacing: .065em; color: #737373; margin-top: 19px; }
.hero-visual { height: 424px; }
.art-topline { color: #737373; font-size: 11px; letter-spacing: .02em; }
.formula-tile {
  background: linear-gradient(143deg, #FFFFFF 0%, #FFFFFF 40%, #EEEEEE 100%);
  box-shadow: inset 1px 1px 0 #FFFFFF, inset -1px -2px 0 #DEDEDE60, 10px 22px 42px #15151510;
  border-radius: 32px;
}
.formula-tile::before { border-radius: 25px; border-color: #DEDEDEAA; }
.hero-symbol { color: var(--ink); filter: drop-shadow(1px 5px 0 #00000009); }
.tile-label { font-size: 11px; color: #626262; }
.tile-caption { color: #737373; }
.orbit-one { border-color: #D9D9D9; }
.orbit-two { border-color: #DFDFDF; }
.orbit-two::after { background: var(--comparison); box-shadow: 0 0 0 4px #147D7310; border: 2px solid #FAFAFA; }
.formula-paper {
  background: #FFF7E8; border-color: #F1E2C6;
  box-shadow: 0 10px 22px #5E45170A; border-radius: 16px;
}
.formula-paper > span { color: #88611F; font-size: 11px; letter-spacing: -.05em; }
.formula-paper > div { color: #746344; }
.formula-paper strong { color: #423B2E; }
.paper-points > i { border: 0; background: #DCCBAA; }
.paper-points > i:nth-child(1) { background: var(--accent); height: 8px; }
.paper-points > i:nth-child(2) { background: #CFB37A; height: 11px; }
.paper-points > i:nth-child(3) { background: var(--comparison); height: 16px; }
.art-corner { border-color: #E1EBE4; background: #F0F7F2; color: var(--comparison); }
.live-evidence { border-radius: 18px; box-shadow: 0 14px 34px #1515150D; border-color: #E6E6E6; background: #FFFFFF; }
.live-state { padding: 3px 6px; margin-left: -5px; border-radius: 5px; font-size: 11px; }
.live-state[data-state="running"], .live-state[data-state="complete"] { background: var(--teal-wash); color: var(--comparison); }
.mini-control { background: var(--accent-wash); color: var(--accent-ink); border-radius: 50%; }
.mini-control:hover { background: #DCE7FF; }
.mini-note button { color: var(--accent-ink); }
.mini-calculation strong { font-size: 16px; color: var(--ink); }
.mini-calculation > div:nth-child(2) strong { color: var(--ink); }
.mini-method { color: #626262; }
.mini-terms { color: #707070; }
.brand-bridge { padding-block: 21px; }
.bridge-label::before { background: var(--comparison); width: 6px; height: 6px; border-radius: 50%; }
.bridge-flow > span > .icon { color: #686868; }

/* Service cards share an equal structure. Color distinguishes kinds, not importance. */
.section { padding-block: 58px; }
.services-section { grid-template-columns: 237px minmax(0,1fr); gap: 0 30px; }
.section-heading .eyebrow { color: #646464; font-size: 11px; letter-spacing: .075em; }
.section-no { border: 0; background: #F2F2F2; color: #575757; width: 25px; height: 25px; border-radius: 7px; }
.services-section .section-heading h2 { font-size: 29px; letter-spacing: -.045em; line-height: 1.5; }
.services-section .section-side { font-size: 13px; line-height: 1.95; }
.channel-grid { grid-template-columns: repeat(auto-fit,minmax(min(100%,300px),1fr)); gap: 18px; }
.channel-card { padding: 25px; border-radius: 22px; background: #FFFFFF; border-color: #E5E5E5; box-shadow: 0 3px 12px #17171703; }
.channel-card[data-status="planned"] { background: #FFFFFF; }
.channel-card:hover, .channel-card:focus-within { border-color: #CED7E8; box-shadow: var(--shadow); transform: translateY(-4px); }
.channel-card[data-status="planned"]:hover { border-color: #E7D9BB; }
.channel-card-top { margin-bottom: 26px; }
.channel-sequence { color: #717171; font-size: 11px; letter-spacing: .025em; }
.badge { color: #3156AB; border: 1px solid #E1E9FD; background: var(--accent-wash); font-size: 11px; border-radius: 6px; }
.channel-card[data-status="planned"] .badge { color: #87530F; background: var(--amber-wash); border-color: #F1DFC0; }
.channel-art { top: 61px; right: 24px; width: 72px; height: 72px; border-color: #DFE7FC; background: var(--accent-wash); color: #3B64C5; border-radius: 22px; transform: rotate(7deg); }
.channel-art > span { font-size: 27px; letter-spacing: -1.5px; }
.channel-card[data-status="planned"] .channel-art { background: var(--amber-wash); color: #9B6D20; border-color: #F1E4CB; transform: rotate(-7deg); }
.channel-card h3 { font-size: 27px; line-height: 1.5; min-height: 41px; letter-spacing: -.045em; font-weight: 680; }
.channel-korean { color: #656565; margin-bottom: 19px; font-size: 12px; }
.channel-description { font-size: 13px; line-height: 1.9; color: #5D5D5D; margin-bottom: 18px; }
.channel-tags { gap: 6px; margin-bottom: 22px; }
.channel-tags > span { background: #F7F7F7; color: #666666; border: 1px solid #EEEEEE; padding: 3px 7px; }
.channel-bottom { padding-top: 12px; border-color: #EEEEEE; }
.channel-link { font-size: 13px; min-height: 42px; }
.channel-card[data-status="planned"] .channel-link { color: #775922; }
.service-address { color: #707070; }
.channel-footnote { color: #707070; margin-top: 12px; }
.next-direction { border: 1px dashed #DEDEDE; background: #FCFCFC; border-radius: 13px; padding: 16px 19px; margin-top: 16px; }
.next-mark { color: var(--comparison); }
.next-direction strong { font-size: 13px; font-weight: 600; color: #505050; }
.next-direction p { color: #707070; }
.next-direction .text-button { color: #59665D; }

/* Real results get color where it clarifies series, state and actions. */
.proof-section { background: #FAFAFA; border-color: #EAEAEA; padding-block: 48px 24px; }
.proof-layout { grid-template-columns: 1fr 1.3fr; gap: 58px; }
.proof-copy h2 { font-size: 33px; font-weight: 680; line-height: 1.45; margin-bottom: 20px; color: var(--ink); }
.proof-copy h2 > span { color: var(--ink); }
.proof-copy > p:not(.eyebrow) { font-size: 14px; color: #5E5E5E; }
.proof-copy .text-button { color: var(--accent-ink); margin-top: 16px; }
.proof-console { padding: 23px 25px 18px; border-radius: 22px; box-shadow: 0 12px 28px #20202006; }
.console-label { font-size: 13px; color: #464646; }
.console-label .small-dot { color: var(--comparison); width: 6px; height: 6px; }
.inline-state { color: #686868; border-radius: 6px; font-size: 11px; }
.inline-state[data-state="running"], .inline-state[data-state="complete"] { background: var(--teal-wash); color: var(--comparison); }
.inline-state[data-state="paused"] { background: var(--amber-wash); color: #87530F; }
.proof-reference { color: #6B6B6B; }
.proof-reference strong { color: #4D4D4D; }
.proof-row { padding-block: 17px; }
.method-index { background: var(--accent-wash); color: var(--accent-ink); border: 1px solid #E2E9FD; font-weight: 600; }
.method-index.teal { background: var(--teal-wash); color: var(--comparison); border-color: #DCEBE3; }
.proof-method { color: #505050; }
.proof-method code { font-size: 11px; color: #707070; }
.proof-result > strong { font-size: 22px; color: #353535; letter-spacing: -.045em; }
.proof-result.teal > strong { color: #353535; }
.proof-result > span > code { color: #606060; }
.inline-trace { margin: 16px 0 0; padding: 12px 13px 10px; background: #FCFCFC; border: 1px solid #EEEEEE; border-radius: 11px; }
.inline-trace figcaption { display: flex; justify-content: space-between; gap: 9px; font-size: 11px; color: #656565; line-height: 1.7; }
.trace-hint { color: #707070; }
#inline-chart { display: block; width: 100%; height: 95px; margin-top: 7px; overflow: visible; }
.trace-grid path { stroke: #E8E8E8; stroke-width: 1; stroke-dasharray: 3 5; fill: none; }
.trace-series { stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; fill: none; vector-effect: non-scaling-stroke; }
.trace-a { stroke: var(--accent); }
.trace-b { stroke: var(--comparison); stroke-dasharray: 5 4; }
.trace-point { stroke: #FFFFFF; stroke-width: 1.5; }
.trace-point-a { fill: var(--accent); }
.trace-point-b { fill: var(--comparison); }
.trace-axis { font: 11px var(--mono); fill: #707070; }
.trace-legend { display: flex; flex-wrap: wrap; gap: 7px 15px; align-items: center; font-size: 11px; color: #666666; margin-top: 4px; }
.trace-legend > span { display: flex; align-items: center; gap: 5px; }
.trace-legend > span:last-child { margin-left: auto; color: #707070; }
.trace-key { display: inline-block; width: 13px; height: 0; border-top: 2px solid var(--accent); }
.key-b { border-color: var(--comparison); border-top-style: dashed; }
.proof-insight { color: #626262; font-size: 11px; }
.proof-controls { margin-top: 12px; gap: 7px; }
.preset-group { background: #F4F4F4; padding: 3px; }
.preset-group button { min-height: 37px; padding-inline: 11px; }
.preset-group button[aria-pressed="true"] { background: var(--accent); color: #FFFFFF; box-shadow: 0 1px 4px #2864EF20; }
.inline-pause { background: var(--accent-wash); color: var(--accent-ink); width: 39px; height: 42px; }
.inline-pause:hover { background: #DCE7FF; }
.proof-detail { color: var(--accent-ink); }
.proof-footnote { color: #707070; margin-top: 22px; }
.proof-footnote .icon { color: var(--comparison); }

/* Quiet editorial accents rather than a row of colored tiles. */
.principles-section { padding-block: 53px 37px; }
.compact-heading h2 { font-size: 28px; }
.principles-grid { gap: 18px; }
.principle { position: relative; border-radius: 17px; padding: 23px 25px 20px; background: #FFFFFF; border-color: #E7E7E7; transition: border-color .2s, box-shadow .2s; }
.principle:hover { border-color: #D4D4D4; box-shadow: 0 5px 18px #20202004; }
.principle-number { width: 29px; height: 29px; background: var(--accent-wash); color: var(--accent-ink); border-radius: 8px; margin-bottom: 15px; }
.principle:nth-child(2) .principle-number { color: var(--comparison); background: var(--teal-wash); }
.principle:nth-child(3) .principle-number { color: #87530F; background: var(--amber-wash); }
.principle-glyph { position: absolute; right: 24px; top: 27px; width: 20px; height: 20px; color: #9C9C9C; }
.principle h3 { font-size: 17px; font-weight: 620; margin-bottom: 9px; }
.principle p { font-size: 13px; color: #626262; margin-bottom: 8px; }
.principle .text-button { color: #666666; font-size: 12px; }
.faq-section { padding-block: 12px 37px; }
.faq-list summary { color: #4D4D4D; font-size: 13px; }
.faq-list details[open] summary { color: var(--ink); }
.faq-list summary > span { width: 23px; height: 23px; display: inline-grid; place-items: center; border-radius: 50%; background: #F5F5F5; font-size: 18px; flex-shrink: 0; }
.faq-list details[open] summary > span { background: var(--accent-wash); color: var(--accent-ink); }
.inquiry-strip { padding: 24px 27px; background: #FAFAFA; border-color: #E5E5E5; border-radius: 17px; }
.inquiry-mark { color: var(--comparison); background: var(--teal-wash); border-color: #DDEBE3; width: 43px; height: 43px; }
.inquiry-strip h2 { font-size: 17px; font-weight: 600; }
.inquiry-strip p { font-size: 12px; color: #626262; }
.button-inquiry { color: #404040; border-color: #DADADA; border-radius: 10px; font-size: 12px; }
.button-inquiry:hover { border-color: #AABEB6; background: #FFFFFF; color: #235C4E; }
.site-footer { background: #FFFFFF; border: 0; border-top: 1px solid #E5E5E5; border-radius: 0; padding: 28px 0 18px; margin-block: 35px 18px; }
.footer-signature { margin-bottom: 21px; padding-bottom: 27px; border-color: #EEEEEE; }
.footer-signature > span { font-size: 38px; font-weight: 530; letter-spacing: -1.1px; line-height: 1.16; }
.footer-signature em { font: italic 1.13em/1.1 var(--serif); letter-spacing: -.025em; color: #606060; }
.footer-signature svg { width: 77px; height: 77px; color: #C9C9C9; }
.footer-top { gap: 20px; }
.footer-bottom { border-color: #EEEEEE; }

/* Same visual vocabulary in working dialogs. */
dialog { border-radius: 20px; border: 1px solid #E3E3E3; padding: 26px; box-shadow: 0 26px 90px #00000028; }
dialog::backdrop { background: #20202080; backdrop-filter: blur(5px); }
.experiment { border-radius: 14px; }
.experiment-top { background: #FAFAFA; }
.result-card { border-radius: 11px; border-color: #E5E5E5; border-left: 3px solid var(--accent); }
.result-card[data-method="nilakantha"] { border-left-color: var(--comparison); }
.result-card > strong, .result-card[data-method="nilakantha"] > strong { color: #353535; }
.dialog-notice, .inquiry-mode { background: #F6F6F6; color: #575757; border-radius: 10px; }
.history-explorer { background: #FAFAFA; border-radius: 0; }
.history-reading { color: #575757; }
.history-explorer output { color: var(--accent-ink); }
.icon-button, .download-button { border-radius: 9px; }
.experiment-status[data-state="running"], .experiment-status[data-state="complete"] { color: var(--comparison); background: var(--teal-wash); }
.experiment-status[data-state="paused"] { color: #87530F; background: var(--amber-wash); }
.download-button:enabled { color: var(--accent-ink); background: #FFFFFF; border-color: #CCD9F7; }
.field-label input, .field-label textarea, .field-label select { border-radius: 10px; border-color: #DEDEDE; background: #FCFCFC; color: var(--ink); }
.field-label input:focus-visible, .field-label textarea:focus-visible, .field-label select:focus-visible { background: #FFFFFF; }
#dialog-content h3 { color: #353535; }
#dialog-content code { background: #F5F5F5; color: #484848; border-radius: 7px; }
body:not(.js-ready) .inline-trace { display: none; }

@media (min-width:1500px) {
  .hero { min-height: 570px; padding-block: 49px; }
  .hero h1 { font-size: 55px; }
}
@media (max-width:1180px) {
  .hero { padding: 37px 34px; gap: 18px; min-height: 534px; }
  .hero h1 { font-size: 45px; }
  .hero-description { font-size: 14px; }
  .hero-subdescription { font-size: 12px; }
  .hero .eyebrow { font-size: 11px; letter-spacing: 0; }
  .eyebrow-korean { display: none; }
  .hero-visual { height: 408px; }
  .services-section { grid-template-columns: 215px minmax(0,1fr); gap: 0 24px; }
  .channel-grid { grid-template-columns: repeat(2,minmax(0,1fr)); gap: 14px; }
  .channel-card { padding: 21px; }
  .channel-art { right: 20px; width: 61px; height: 61px; }
  .channel-card h3 { font-size: 25px; padding-right: 65px; }
  .channel-description { font-size: 13px; }
  .proof-layout { gap: 34px; }
  .proof-copy h2 { font-size: 30px; }
  .proof-console { padding: 21px 21px 17px; }
  .proof-result > strong { font-size: 19px; }
  .trace-hint { display: none; }
  .principle { padding: 21px; }
  .principle h3 { font-size: 16px; }
  .principle p br { display: none; }
}
@media (max-width:960px) {
  .hero { grid-template-columns: 1fr 1fr; padding-inline: 29px; }
  .hero h1 { font-size: 39px; }
  .hero-description br { display: none; }
  .hero-notes { font-size: 11px; gap: 11px; }
  .hero-proof-link { font-size: 12px; }
  .hero-visual { height: 374px; }
  .services-section { display: block; }
  .services-section > .section-heading { display: flex; align-items: end; gap: 32px; margin-bottom: 23px; }
  .services-section .section-side { margin: 0; max-width: 310px; }
  .channel-card { padding: 25px; }
  .channel-card h3 { font-size: 27px; }
  .channel-art { right: 25px; width: 69px; height: 69px; }
  .proof-layout { grid-template-columns: .8fr 1.2fr; gap: 25px; }
  .proof-copy h2 { font-size: 27px; }
  .proof-copy > p:not(.eyebrow) { font-size: 13px; }
  .proof-copy .eyebrow { font-size: 11px; letter-spacing: -.025em; }
  .proof-console { padding: 19px 18px 16px; }
  .proof-method code { display: none; }
  .proof-result > strong { font-size: 18px; }
  .method-index { grid-row: auto; }
  .proof-method { font-size: 12px; }
  .proof-controls { gap: 6px; }
  .proof-detail { font-size: 11px; }
  .principles-grid { gap: 13px; }
  .principle { padding: 20px 17px; }
  .principle p { font-size: 12px; }
  .principle-glyph { right: 18px; }
}
@media (max-width:780px) {
  .hero { display: flex; flex-direction: column; align-items: stretch; padding: 36px; gap: 31px; }
  .hero h1 { font-size: 44px; }
  .hero-description { font-size: 15px; max-width: 470px; }
  .hero-subdescription { font-size: 13px; }
  .hero-description br { display: block; }
  .hero-visual { align-self: center; width: min(100%,450px); height: 407px; }
  .formula-tile { width: 226px; height: 230px; left: 47%; top: 50px; }
  .hero-symbol { width: 106px; height: 106px; }
  .formula-paper { width: 126px; top: 121px; right: 0; }
  .live-evidence { width: min(359px,98%); bottom: 16px; }
  .orbit-one { width: 280px; height: 256px; left: calc(47% - 140px); top: 35px; }
  .orbit-two { width: 267px; height: 267px; left: calc(47% - 133px); top: 37px; }
  .mini-calculation { grid-template-columns: 1fr 1fr 43px; }
  #mini-chart { display: block; }
  .eyebrow-korean { display: inline; }
  .proof-layout { grid-template-columns: 1fr; gap: 26px; }
  .proof-copy h2 { font-size: 30px; }
  .proof-copy > p:not(.eyebrow) { font-size: 14px; }
  .proof-console { padding: 23px 25px 18px; }
  .proof-method code { display: block; }
  .method-index { grid-row: span 2; }
  .proof-result > strong { font-size: 22px; }
  #inline-chart { height: 107px; }
  .trace-hint { display: inline; }
  .principles-grid { grid-template-columns: 1fr; gap: 12px; }
  .principle { padding: 19px 23px 17px 65px; }
  .principle-number { position: absolute; top: 21px; left: 21px; margin: 0; }
  .principle h3 { font-size: 16px; padding-right: 32px; }
  .principle p { font-size: 13px; }
  .principle-glyph { top: 22px; right: 23px; width: 18px; height: 18px; }
}
@media (max-width:640px) {
  .site-header { height: 66px; }
  .brand { font-size: 25px; }
  .header-inner { gap: 9px; }
  .service-disclosure > summary { min-height: 43px; }
  .service-menu-panel { border-radius: 16px; top: calc(100% + 4px); }
  .hero { margin-top: 17px; padding: 30px 24px 24px; gap: 27px; border-radius: 24px; min-height: 0; }
  .hero h1 { font-size: 38px; line-height: 1.36; margin-bottom: 25px; }
  .hero .eyebrow { font-size: 11px; letter-spacing: .02em; margin-bottom: 21px; }
  .eyebrow-korean { display: none; }
  .hero-description { font-size: 14px; line-height: 1.9; }
  .hero-description br { display: none; }
  .hero-subdescription { font-size: 12px; line-height: 1.95; }
  .hero-notes { font-size: 11px; gap: 14px; margin-top: 19px; }
  .hero-proof-link { font-size: 12px; min-height: 45px; margin-top: 18px; padding: 8px 14px 8px 9px; }
  .hero-edition { font-size: 11px; margin-top: 17px; }
  .hero-visual { height: 355px; max-width: 390px; }
  .art-topline { font-size: 11px; letter-spacing: -.08em; left: 0; right: 0; }
  .formula-tile { width: 193px; height: 198px; left: 44%; top: 37px; border-radius: 29px; }
  .formula-tile::before { border-radius: 23px; }
  .hero-symbol { width: 94px; height: 94px; }
  .formula-paper { width: 111px; right: 0; top: 91px; padding: 13px 9px; }
  .formula-paper > span { font-size: 11px; letter-spacing: -.08em; }
  .formula-paper > div { white-space: normal; font-size: 11px; line-height: 1.65; }
  .formula-paper strong { font-size: 29px; }
  .formula-paper strong em { font-size: 22px; }
  .orbit-one { width: 225px; height: 218px; left: calc(44% - 112px); top: 27px; }
  .orbit-two { width: 219px; height: 219px; left: calc(44% - 109px); top: 31px; }
  .live-evidence { width: 100%; bottom: 18px; padding: 11px 12px 8px; border-radius: 15px; }
  .mini-calculation { grid-template-columns: 1fr 1fr; }
  #mini-chart { display: none; }
  .mini-calculation strong { font-size: 16px; }
  .coord-bottom { right: 0; bottom: 0; font-size: 11px; letter-spacing: -.05em; }
  .art-corner { width: 32px; height: 34px; left: 0; top: 131px; font-size: 23px; }
  .brand-bridge { padding-block: 17px; }
  .bridge-flow { font-size: 11px; gap: 13px; }
  .section { padding-block: 38px; }
  .services-section > .section-heading { display: block; margin-bottom: 22px; }
  .services-section .section-heading h2 { font-size: 27px; }
  .services-section .section-side { margin-top: 12px; font-size: 13px; max-width: none; }
  .channel-grid { grid-template-columns: 1fr; gap: 14px; }
  .channel-card { padding: 23px; border-radius: 20px; }
  .channel-card h3 { font-size: 27px; padding-right: 76px; }
  .channel-art { right: 23px; width: 69px; height: 69px; top: 62px; }
  .channel-card-top { margin-bottom: 25px; }
  .channel-description { font-size: 13px; }
  .channel-tags { margin-bottom: 19px; }
  .channel-link { font-size: 12px; }
  .next-direction { padding: 16px; }
  .next-direction .text-button { font-size: 12px; }
  .channel-footnote { font-size: 11px; }
  .proof-section { padding-block: 36px 23px; }
  .proof-copy h2 { font-size: 29px; margin-bottom: 16px; }
  .proof-copy > p:not(.eyebrow) { font-size: 13px; }
  .proof-console { padding: 19px 17px 15px; border-radius: 19px; }
  .console-label { font-size: 12px; }
  .proof-reference strong { font-size: 13px; }
  .proof-row { padding-block: 16px; gap: 10px; }
  .proof-method { font-size: 11px; grid-template-columns: 23px 1fr; gap: 5px; }
  .proof-method code { display: none; }
  .method-index { grid-row: auto; width: 23px; height: 25px; }
  .proof-result > strong { font-size: 16px; }
  .proof-result > span { font-size: 11px; }
  .inline-trace { margin-top: 14px; padding: 11px; }
  .inline-trace figcaption { font-size: 11px; }
  .trace-hint { display: none; }
  #inline-chart { height: 91px; }
  .trace-legend { font-size: 11px; gap: 5px 12px; }
  .trace-legend > span:last-child { width: 100%; margin-left: 0; }
  .proof-controls { gap: 6px; }
  .preset-group button { padding-inline: 9px; font-size: 11px; min-height: 38px; }
  .inline-pause { width: 33px; }
  .proof-detail { gap: 4px; font-size: 11px; }
  .proof-footnote { font-size: 11px; }
  .compact-heading h2 { font-size: 25px; }
  .compact-heading .section-side { font-size: 13px; }
  .principles-section { padding-bottom: 29px; }
  .principle { padding: 19px 18px 15px 56px; }
  .principle-number { width: 25px; height: 25px; left: 17px; top: 21px; }
  .principle p { font-size: 12px; }
  .principle h3 { font-size: 16px; }
  .principle-glyph { right: 18px; }
  .faq-section { padding-bottom: 29px; }
  .faq-list summary, .faq-list p { font-size: 12px; }
  .inquiry-strip { padding: 21px; border-radius: 16px; }
  .inquiry-strip h2 { font-size: 17px; }
  .inquiry-strip p { font-size: 12px; }
  .site-footer { padding: 26px 0 16px; border-radius: 0; margin-top: 29px; }
  .footer-signature > span { font-size: 30px; }
  .footer-signature svg { width: 64px; height: 64px; }
  .footer-signature { padding-bottom: 22px; }
  .footer-top > p { font-size: 11px; }
  dialog { padding: 20px; border-radius: 17px; }
  .lab-dialog { padding: 15px; }
}
@media (max-width:359px) {
  .header-inner { gap: 5px; }
  .brand { font-size: 23px; }
  .hero { padding: 26px 18px 22px; }
  .hero h1 { font-size: 32px; }
  .hero .eyebrow { font-size: 11px; letter-spacing: -.025em; }
  .hero-proof-link { font-size: 12px; gap: 7px; }
  .hero-proof-link > .icon { margin-left: 6px; }
  .hero-notes { gap: 10px; }
  .hero-visual { height: 331px; }
  .formula-tile { width: 169px; height: 179px; top: 33px; }
  .hero-symbol { width: 80px; height: 80px; }
  .formula-paper { width: 98px; right: -4px; top: 84px; padding: 11px 8px; }
  .formula-paper strong { font-size: 27px; }
  .orbit-one { width: 197px; height: 202px; left: calc(44% - 98px); top: 22px; }
  .orbit-two { width: 195px; height: 195px; left: calc(44% - 97px); top: 28px; }
  .live-evidence { padding: 10px 9px 7px; bottom: 15px; }
  .mini-calculation strong { font-size: 15px; }
  .art-corner { left: -5px; width: 29px; height: 30px; }
  .coord-bottom { bottom: -1px; font-size: 11px; letter-spacing: -.07em; }
  .bridge-flow { gap: 9px; }
  .channel-card { padding: 20px; }
  .channel-art { width: 63px; height: 63px; right: 19px; }
  .channel-card h3 { font-size: 25px; }
  .channel-korean { padding-right: 50px; }
  .proof-console { padding: 16px 13px; }
  .proof-row { gap: 4px; }
  .proof-result > strong { font-size: 14px; }
  .inline-trace { padding: 10px; }
  .proof-detail { margin-left: 0; }
  .footer-signature > span { font-size: 27px; }
  .footer-signature svg { width: 52px; height: 52px; }
}
@media (prefers-reduced-motion:reduce) {
  .hero-proof-link:hover, .channel-card:hover, .channel-card:focus-within { transform: none; }
}
body.motion-paused .hero-proof-link:hover { transform: none; }
@media (forced-colors:active) {
  .hero, .proof-section, .site-footer, .formula-paper { background: Canvas; border-color: CanvasText; }
  .hero-proof-link, .preset-group button[aria-pressed="true"] { border: 1px solid ButtonText; background: ButtonFace; color: ButtonText; }
  .hero-emphasis::after { background: Highlight; }
  .trace-a, .trace-b { stroke: CanvasText; }
  .trace-point-a, .trace-point-b { fill: CanvasText; }
  .trace-axis { fill: CanvasText; }
}

/* Keep text at native scale in the responsive SVG and visible progress meaningful. */
#inline-chart { height: 104px; }
progress::-webkit-progress-value { background: var(--accent); }
progress::-moz-progress-bar { background: var(--accent); }
.chart-grid-line { stroke: #E8E8E8; }