.mk-hero{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,1fr);grid-gap:48px;gap:48px;align-items:center;padding:64px 0 48px}.mk-hero h1{margin:14px 0 18px}.mk-hero .lead{max-width:540px}.mk-hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:28px}.mk-hero-note{margin-top:18px;display:flex;gap:8px 16px;flex-wrap:wrap;font-family:var(--font-mono);font-size:12px;color:var(--ink-3);letter-spacing:.02em}.mk-hero-note span:before{content:"//";color:var(--copper);margin-right:6px}.mk-board{border:1px solid var(--line-2);border-radius:var(--r);background:var(--bg-2);box-shadow:var(--shadow-hard);overflow:hidden}.mk-board svg{width:100%;height:auto;display:block}.mk-board-caption{display:flex;justify-content:space-between;gap:12px;padding:8px 12px;border-top:1px solid var(--line);font-family:var(--font-mono);font-size:11px;color:var(--ink-3)}@media (max-width:960px){.mk-hero{grid-template-columns:1fr;gap:32px;padding-top:40px}}.mk-stats{display:grid;grid-template-columns:repeat(4,1fr);border:1px solid var(--line-2);border-radius:var(--r);background:var(--bg-2);overflow:hidden}.mk-stats .stat{padding:18px 22px;border-right:1px solid var(--line)}.mk-stats .stat:last-child{border-right:0}.mk-stats .stat .num{color:var(--copper-ink)}.mk-stats .stat .num small{font-size:14px;color:var(--ink-2);margin-left:4px;font-weight:600}@media (max-width:720px){.mk-stats{grid-template-columns:repeat(2,1fr)}.mk-stats .stat:nth-child(2){border-right:0}.mk-stats .stat:nth-child(-n+2){border-bottom:1px solid var(--line)}}.mk-level-desc{font-size:13px;color:var(--ink-2);margin-top:8px;line-height:1.55}.mk-level-out{font-family:var(--font-mono);font-size:11px;color:var(--ink-3);margin-top:10px}.mk-level-out:before{content:"→ ";color:var(--copper)}.mk-rail-caption{display:flex;justify-content:center;gap:10px;align-items:center;margin-top:14px;font-family:var(--font-mono);font-size:12px;color:var(--ink-3);letter-spacing:.04em}.mk-rail-caption:after,.mk-rail-caption:before{content:"";flex:1 1;max-width:120px;height:1px;background:var(--copper)}.mk-how{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);grid-gap:40px;gap:40px;align-items:start}.mk-how .step-list>li h3{font-size:16px;margin-bottom:6px}.mk-how .step-list>li p{font-size:14px;color:var(--ink-2);line-height:1.6}.mk-how .step-list>li code{display:inline-block;margin-top:8px}.mk-sheet-code pre.code{border:0;border-radius:0}.mk-derived{list-style:none;margin:0;padding:0}.mk-derived li{display:grid;grid-template-columns:1fr auto;grid-gap:10px;gap:10px;align-items:center;padding:9px 18px;border-top:1px solid var(--line);font-size:13.5px}.mk-derived li .from{font-family:var(--font-mono);font-size:12px;color:var(--ink-3)}.mk-derived li .why{grid-column:1/-1;font-size:12.5px;color:var(--ink-2);padding-left:10px;border-left:2px solid var(--copper)}@media (max-width:960px){.mk-how{grid-template-columns:1fr}}.mk-how>*{min-width:0}.mk-sheet-code pre.code{overflow-x:auto}.mk-gates .gate{padding:16px 18px}.mk-gates .gate .gate-desc{font-size:13px;color:var(--ink-2);margin-top:8px;line-height:1.55}.mk-gates .gate[data-state=user]{border-style:dashed;border-color:var(--ink-3)}.mk-gates .gate[data-state=user] .gate-state{color:var(--warn)}.mk-pass-tool{font-family:var(--font-mono);font-size:12px;color:var(--ink-3);white-space:nowrap}.mk-example{display:grid;grid-gap:10px;gap:10px;min-height:150px}.mk-example .card-title{font-size:14.5px;line-height:1.4}.mk-example .mk-inc{display:flex;gap:4px;flex-wrap:wrap}.mk-example .mk-inc .tag{font-size:10.5px;padding:1px 6px}.mk-example-foot{margin-top:auto;display:flex;justify-content:space-between;align-items:center;gap:8px;font-family:var(--font-mono);font-size:11.5px;color:var(--ink-3)}.mk-example-foot .open{color:var(--copper-ink);font-weight:600}.mk-boards-split{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,2fr);grid-gap:26px;gap:26px;align-items:start}.mk-boards{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));grid-gap:12px;gap:12px}.mk-boards-split>:first-child .mk-boards{grid-template-columns:1fr}@media (max-width:860px){.mk-boards-split{grid-template-columns:1fr;gap:22px}}@media (max-width:560px){.mk-boards{grid-template-columns:1fr}}.mk-board-chip{display:grid;grid-gap:4px;gap:4px;padding:12px 14px;border:1px solid var(--line);border-radius:var(--r);background:var(--bg-2)}.mk-board-chip .name{font-weight:600;font-size:13.5px;line-height:1.35}.mk-board-chip .meta{font-family:var(--font-mono);font-size:11px;color:var(--ink-3);display:flex;gap:8px;flex-wrap:wrap}.mk-board-chip .cert{display:flex;gap:4px;flex-wrap:wrap;margin-top:4px}.mk-tier{display:grid;grid-gap:10px;gap:10px}.mk-tier .price{font-family:var(--font-mono);font-size:12px;color:var(--copper-ink)}.mk-tier ul{margin:0;padding:0}.mk-cta{text-align:center;padding:56px 24px;border:1px solid var(--line-2);border-radius:var(--r);background:var(--bg-2);position:relative;overflow:hidden}.mk-cta:after,.mk-cta:before{content:"";position:absolute;height:2px;background:var(--copper);left:0;right:0}.mk-cta:before{top:0}.mk-cta:after{bottom:0}.mk-cta h2{margin-bottom:12px}.mk-cta p{color:var(--ink-2);max-width:520px;margin:0 auto 24px}.mk-log{display:grid;grid-gap:0;gap:0}.mk-log-entry{display:grid;grid-template-columns:150px minmax(0,1fr);grid-gap:24px;gap:24px;padding:28px 0;border-top:1px solid var(--line)}.mk-log-entry:last-child{border-bottom:1px solid var(--line)}.mk-log-date{font-family:var(--font-mono);font-size:12.5px;color:var(--ink-3);position:-webkit-sticky;position:sticky;top:calc(var(--nav-h) + 24px);align-self:start}.mk-log-date .round{display:block;color:var(--copper-ink);font-weight:600;margin-top:4px}.mk-log-entry h2{font-size:20px;margin-bottom:8px}.mk-log-entry ul{margin:12px 0 0;padding-left:18px;display:grid;grid-gap:6px;gap:6px;font-size:14px;color:var(--ink-2)}.mk-log-entry li::marker{color:var(--copper)}@media (max-width:640px){.mk-log-entry{grid-template-columns:1fr;gap:8px}.mk-log-date{position:static}}.mk-principle{display:grid;grid-template-columns:44px 1fr;grid-gap:14px;gap:14px;padding:18px 0;border-top:1px solid var(--line)}.mk-principle:last-child{border-bottom:1px solid var(--line)}.mk-principle .n{font-family:var(--font-mono);font-weight:700;color:var(--copper-ink);font-size:14px;padding-top:2px}.mk-principle h3{font-size:16px;margin-bottom:6px}.mk-principle p{font-size:14px;color:var(--ink-2);line-height:1.6}:lang(ko) .mk-cta h2,:lang(ko) .mk-hero h1,:lang(ko) .page-head h1,:lang(ko) .section-head h2{word-break:keep-all;overflow-wrap:anywhere}:lang(ja) .mk-hero h1{font-size:clamp(34px,4.9vw,60px)}.mk-pass-table{min-width:680px}.mk-board-caption{flex-wrap:wrap}.mk-demo{display:grid;grid-template-columns:minmax(280px,380px) minmax(0,1fr);grid-gap:28px;gap:28px;align-items:start}.mk-demo-steps{list-style:none;margin:0;padding:0;display:grid;grid-gap:6px;gap:6px}.mk-demo-step{position:relative;display:grid;grid-template-columns:34px 1fr;grid-gap:10px;gap:10px;width:100%;text-align:left;padding:12px 14px;border:1px solid var(--line);border-radius:var(--r);background:var(--bg-2);overflow:hidden;transition:border-color var(--dur),transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease)}.mk-demo-step:hover{border-color:var(--line-2)}.mk-demo-step[data-active]{border-color:var(--line-2);box-shadow:var(--shadow-hard-sm);transform:translate(-1px,-1px);background:var(--bg-2)}.mk-demo-n{font-weight:700;color:var(--copper-ink);font-size:13px;padding-top:2px}.mk-demo-body{display:grid;grid-gap:4px;gap:4px;min-width:0}.mk-demo-tag{justify-self:start;font-size:10.5px}.mk-passes{margin-top:32px}.mk-passes>summary{list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:12px;padding:13px 16px;border:1px dashed var(--line-2);border-radius:var(--r-sm);background:var(--bg-2)}.mk-passes>summary::-webkit-details-marker{display:none}.mk-passes>summary:after{content:"\25be";color:var(--ink-3)}.mk-passes[open]>summary{margin-bottom:14px}.mk-passes[open]>summary:after{content:"\25b4"}.mk-passes>summary:focus-visible{outline:2px solid var(--copper);outline-offset:2px}.mk-passes-title{font-weight:700}.mk-demo-tags{display:flex;align-items:center;gap:6px;flex-wrap:wrap}.mk-demo-soon{flex:none;font-size:10.5px;color:var(--ink-3);background:transparent}.mk-demo-soon,.mk-demo-step[data-soon]{border-style:dashed}.mk-demo-step[data-soon] .mk-demo-title{color:var(--ink-2)}.mk-demo-title{font-weight:700;font-size:14.5px;line-height:1.3}.mk-demo-desc{font-size:12.5px;color:var(--ink-3);line-height:1.5;display:none}.mk-demo-step[data-active] .mk-demo-desc{display:block}.mk-demo-progress{position:absolute;left:0;bottom:0;height:2px;background:var(--copper);width:0;animation-name:mk-demo-fill;animation-timing-function:linear;animation-fill-mode:forwards}@keyframes mk-demo-fill{0%{width:0}to{width:100%}}.mk-demo-stage{display:grid;grid-gap:12px;gap:12px;min-width:0}.mk-demo-frame{border:1px solid var(--line-2);border-radius:var(--r-lg);background:var(--bg-2);box-shadow:var(--shadow-hard);overflow:hidden}.mk-demo-chrome{display:flex;align-items:center;gap:12px;padding:8px 12px;border-bottom:1px solid var(--line);background:var(--bg-3)}.mk-demo-dots{display:inline-flex;gap:5px}.mk-demo-dots i{width:9px;height:9px;border-radius:50%;border:1px solid var(--ink-4);background:var(--bg-2)}.mk-demo-url{flex:1 1;font-size:12px;color:var(--ink-3);background:var(--bg-2);border:1px solid var(--line);border-radius:4px;padding:3px 10px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.mk-demo-viewport{height:clamp(360px,52vw,620px);overflow:hidden;background:var(--bg);background-image:radial-gradient(var(--grid) 1px,transparent 1.2px);background-size:16px 16px;display:flex;justify-content:center}.mk-demo-viewport img{height:100%;width:auto;max-width:100%;object-fit:contain;object-position:top center}.mk-demo-caption{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;padding:0 4px}.mk-demo-caption-title{font-weight:700;margin-bottom:2px}.mk-demo-strip{grid-column:1/-1;list-style:none;margin:4px 0 0;padding:0;display:grid;grid-template-columns:repeat(6,1fr);grid-gap:10px;gap:10px}.mk-demo-thumb{position:relative;display:block;width:100%;padding:0;overflow:hidden;border:1px solid var(--line);border-radius:var(--r-sm);background:var(--bg-2);transition:border-color var(--dur),transform var(--dur) var(--ease)}.mk-demo-thumb img{display:block;width:100%;height:auto;aspect-ratio:26/18;object-fit:cover;opacity:.55;transition:opacity var(--dur)}.mk-demo-thumb:hover{border-color:var(--line-2)}.mk-demo-thumb:hover img{opacity:.85}.mk-demo-thumb[data-active]{border-color:var(--copper);box-shadow:var(--shadow-hard-sm);transform:translate(-1px,-1px)}.mk-demo-thumb[data-active] img{opacity:1}.mk-demo-thumb-n{position:absolute;top:4px;left:4px;padding:0 5px;border-radius:3px;background:var(--bg-2);border:1px solid var(--line);color:var(--ink-3);font-size:10px;font-weight:700;line-height:16px}.mk-demo-thumb[data-active] .mk-demo-thumb-n{background:var(--copper);border-color:var(--copper);color:var(--on-copper)}.mk-demo-thumb-cap{position:absolute;left:0;right:0;bottom:0;padding:3px 6px;background:linear-gradient(transparent,rgba(0,0,0,.62));color:#fff;font-size:10.5px;font-weight:600;text-align:left;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}@media (max-width:720px){.mk-demo-strip{grid-template-columns:none;grid-auto-flow:column;grid-auto-columns:132px;overflow-x:auto;scroll-snap-type:x mandatory;padding-bottom:4px}.mk-demo-strip li{scroll-snap-align:start}.mk-demo-strip{padding-right:28px;-webkit-mask-image:var(--scroll-fade);mask-image:var(--scroll-fade)}}.mk-demo-note{margin-top:18px;font-size:12.5px;color:var(--ink-3);display:flex;gap:8px;align-items:center;flex-wrap:wrap}@media (max-width:960px){.mk-demo{grid-template-columns:1fr}.mk-demo-steps{grid-auto-flow:column;grid-auto-columns:minmax(220px,1fr);overflow-x:auto;padding-bottom:6px;padding-right:32px;scroll-snap-type:x mandatory;-webkit-mask-image:var(--scroll-fade);mask-image:var(--scroll-fade)}.mk-demo-steps>.mk-demo-step{scroll-snap-align:start}.mk-demo-step{height:100%}.mk-demo-desc{display:none!important}.mk-demo-viewport{height:clamp(300px,90vw,520px)}}.mk-hero-bleed{--hero-img:url(/art/hero_board_light.webp);position:relative;width:100vw;margin-left:calc(50% - 50vw);background:var(--hero-img) no-repeat right center /cover;border-bottom:1px solid var(--line)}:root[data-theme=dark] .mk-hero-bleed:not(.mk-hero-bleed-photo){--hero-img:url(/art/hero_board_dark.webp)}@media (prefers-color-scheme:dark){:root:not([data-theme=light]) .mk-hero-bleed:not(.mk-hero-bleed-photo){--hero-img:url(/art/hero_board_dark.webp)}}.mk-hero-bleed:before{content:"";position:absolute;inset:0;pointer-events:none;background:linear-gradient(90deg,var(--bg) 0,color-mix(in srgb,var(--bg) 92%,transparent) 34%,color-mix(in srgb,var(--bg) 40%,transparent) 54%,transparent 70%)}.mk-hero-bleed-photo:before{background:linear-gradient(90deg,var(--bg) 0,color-mix(in srgb,var(--bg) 94%,transparent) 46%,color-mix(in srgb,var(--bg) 55%,transparent) 72%,color-mix(in srgb,var(--bg) 25%,transparent) 100%)}.mk-hero-bleed>.mk-hero{position:relative;max-width:1160px;margin:0 auto;padding:96px 24px 80px;min-height:560px;grid-template-columns:minmax(0,.6fr) minmax(0,.4fr)}.mk-hero-bleed-photo>.mk-hero{grid-template-columns:minmax(0,1fr) minmax(280px,380px);padding:64px 24px 56px;min-height:0}.mk-hero-bleed .lead{max-width:520px}@media (max-width:960px){.mk-hero-bleed{background-position:82% 100%;background-size:auto 62%}.mk-hero-bleed-photo:before,.mk-hero-bleed:before{background:linear-gradient(180deg,var(--bg) 0,color-mix(in srgb,var(--bg) 94%,transparent) 52%,color-mix(in srgb,var(--bg) 35%,transparent) 100%)}.mk-hero-bleed-photo>.mk-hero,.mk-hero-bleed>.mk-hero{grid-template-columns:1fr;padding:48px 16px 200px;min-height:0}.mk-hero-bleed-photo>.mk-hero{padding-bottom:48px}.mk-hero-bleed-photo{background-size:cover;background-position:50%}}.mk-cta{background:linear-gradient(0deg,color-mix(in srgb,var(--bg-2) 86%,transparent),color-mix(in srgb,var(--bg-2) 86%,transparent)),url(/art/band_copper.webp) 50% /cover no-repeat}.mk-banner{margin:0 0 36px;border:1px solid var(--line-2);border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--shadow-hard);background:var(--bg-2)}.mk-banner img{width:100%;height:auto;display:block;max-height:380px;object-fit:cover}