:root{
  --paper:#f5f1e8;--surface:#fffdf8;--ink:#222520;--muted:#6f716b;--line:#d9d2c5;
  --sage:#426250;--sage-soft:#e2ece5;--brick:#9f5345;--brick-soft:#f6e5df;
  --blue:#496873;--blue-soft:#e2ecef;--sand:#d6c3a2;--shadow:0 18px 50px rgba(63,52,36,.09);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--ink);font-family:Inter,Pretendard,"Apple SD Gothic Neo","Noto Sans KR",system-ui,sans-serif;line-height:1.5;overflow-x:hidden}
button,a{font:inherit}
button{min-height:44px;cursor:pointer}
button:focus-visible,a:focus-visible{outline:3px solid #274f8d;outline-offset:3px}
.skip-link{position:fixed;left:12px;top:-80px;z-index:1000;padding:12px 16px;background:#fff;color:#111;border-radius:8px}
.skip-link:focus{top:12px}
.app-header{position:sticky;top:0;z-index:40;display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:20px;min-height:72px;padding:10px max(20px,calc((100vw - 1320px)/2));background:rgba(245,241,232,.94);border-bottom:1px solid rgba(125,114,96,.2);backdrop-filter:blur(18px)}
.wordmark{display:flex;flex-direction:column;width:max-content;color:var(--ink);text-decoration:none}.wordmark span{font-size:10px;letter-spacing:.18em;color:var(--brick);font-weight:900}.wordmark strong{font-size:18px}.header-status{display:flex;align-items:center;gap:8px;color:var(--muted);font-size:13px}.status-dot{width:8px;height:8px;border-radius:50%;background:#c07d39;box-shadow:0 0 0 5px rgba(192,125,57,.13)}
.header-actions{display:flex;justify-content:flex-end;gap:8px}.ghost-button,.primary-button{border:1px solid var(--line);border-radius:12px;padding:0 18px;background:var(--surface);color:var(--ink);font-weight:800}.primary-button{background:var(--sage);border-color:var(--sage);color:#fff}.full-button{width:100%}
main{width:min(1320px,calc(100% - 40px));margin:0 auto;padding:28px 0 72px}
.decision-layout{display:grid;grid-template-columns:minmax(0,1fr) 330px;gap:18px;align-items:start}
.hero-card,.decision-rail,.comparison-section,.design-review,.research-note{background:var(--surface);border:1px solid var(--line);border-radius:24px;box-shadow:var(--shadow)}
.hero-copy{padding:28px 30px 22px}.eyebrow-row,.evidence-row{display:flex;gap:8px;align-items:center;flex-wrap:wrap}.choice-badge,.attention-badge,.neutral-badge{display:inline-flex;align-items:center;min-height:28px;padding:4px 10px;border-radius:999px;font-size:12px;font-weight:900}.choice-badge{background:var(--sage);color:#fff}.attention-badge{background:var(--brick-soft);color:#833e33}.neutral-badge{background:#ece7dd;color:#5d5d58}.hero-copy h1{max-width:780px;margin:14px 0 8px;font-size:clamp(28px,4vw,50px);line-height:1.12;letter-spacing:-.035em}.hero-summary{max-width:760px;margin:0;color:#555951;font-size:17px}.evidence-row{margin-top:18px}.evidence{padding:7px 10px;border-radius:9px;font-size:12px;font-weight:800}.measured{background:var(--sage-soft);color:#2e5740}.calculated{background:var(--blue-soft);color:#365c69}.estimated{background:#f5e8cf;color:#775724}
.view-tabs{display:grid;grid-template-columns:repeat(3,1fr);gap:6px;margin:0 20px 12px;padding:5px;background:#ebe6dc;border-radius:14px}.view-tabs button{border:0;border-radius:10px;background:transparent;color:#676960;font-weight:800}.view-tabs button[aria-selected="true"]{background:#fff;color:var(--ink);box-shadow:0 4px 14px rgba(45,41,34,.08)}
.view-stage{position:relative;min-height:560px;background:#ded8cd;border-radius:0 0 24px 24px;overflow:hidden}.view-panel{min-height:560px}.hero-visual{position:relative;margin:0;height:560px;background:#222}.hero-visual img{display:block;width:100%;height:100%;object-fit:cover;object-position:center}.hero-visual figcaption{position:absolute;left:16px;bottom:16px;display:flex;align-items:center;gap:8px;max-width:calc(100% - 32px);padding:9px 12px;border-radius:10px;background:rgba(24,25,23,.78);color:#fff;font-size:12px;backdrop-filter:blur(10px)}.hero-visual figcaption span{padding:4px 7px;border-radius:5px;background:#fff;color:#111;font-weight:900}
.measure-layout{display:grid;grid-template-columns:minmax(0,1fr) 220px;gap:20px;min-height:560px;padding:26px;background:#f7f3eb}.floor-plan{width:100%;height:100%;min-height:500px;background:#fff;border:1px solid var(--line);border-radius:16px;padding:18px}.floor-plan text{font:9px system-ui,sans-serif;fill:#4b4c47}.fact-stack{display:grid;gap:10px;align-content:center}.fact-stack>div{display:flex;flex-direction:column;padding:14px;border-radius:14px;background:#fff;border:1px solid var(--line)}.fact-stack span{font-size:12px;color:var(--muted)}.fact-stack strong{font-size:24px;letter-spacing:-.04em}.fact-stack small{margin-top:2px;color:var(--muted);font-size:11px}.fact-stack .fact-warning{background:#fbf0dd;border-color:#e8d0a1}
.three-panel{position:relative;background:linear-gradient(#dce8e7,#eee8dd)}#threeCanvas{display:block;width:100%;height:560px;touch-action:none}.three-loading{position:absolute;inset:0;display:grid;place-items:center;background:#e7ece8;color:#4d5a50;font-weight:800}.three-loading[hidden]{display:none}.three-toolbar{position:absolute;top:14px;left:14px;display:flex;gap:6px;padding:5px;border-radius:12px;background:rgba(255,253,248,.92);box-shadow:0 8px 20px rgba(30,31,29,.1)}.three-toolbar button{border:1px solid var(--line);border-radius:9px;background:#fff;padding:0 12px;font-size:12px;font-weight:800}.three-note{position:absolute;right:14px;bottom:14px;margin:0;padding:8px 11px;border-radius:9px;background:rgba(26,28,26,.78);color:#fff;font-size:11px}
.decision-rail{position:sticky;top:92px;padding:24px}.rail-heading>span,.section-heading span,.design-review article>span{font-size:11px;letter-spacing:.12em;color:var(--brick);font-weight:900}.rail-heading h2,.section-heading h2{margin:5px 0 0;font-size:24px;line-height:1.18;letter-spacing:-.025em}.gate-list{display:grid;gap:10px;margin:22px 0;padding:0;list-style:none}.gate-list li{display:grid;grid-template-columns:34px 1fr auto;gap:10px;align-items:start;padding:13px 0;border-bottom:1px solid var(--line)}.gate-list li>span{display:grid;place-items:center;width:32px;height:32px;border-radius:50%;background:#ece7dc;font-weight:900}.gate-list strong{font-size:14px}.gate-list p{margin:2px 0 0;color:var(--muted);font-size:12px}.gate-list em{padding:3px 6px;border-radius:5px;background:var(--brick-soft);color:#874337;font-size:10px;font-style:normal;font-weight:900}.product-pair{display:grid;grid-template-columns:1fr 1fr;gap:8px}.product-pair>div{display:flex;flex-direction:column;padding:12px;border-radius:12px;background:#f3efe7}.product-pair span,.product-pair small{font-size:10px;color:var(--muted)}.product-pair strong{font-size:13px}.rail-conclusion{margin:18px 0;padding:16px;border-left:4px solid var(--sage);border-radius:8px;background:var(--sage-soft)}.rail-conclusion span{font-size:11px;color:#52705d}.rail-conclusion strong{display:block;font-size:21px}.rail-conclusion p{margin:2px 0 0;font-size:12px;color:#4b6754}
.comparison-section,.design-review,.research-note{margin-top:18px;padding:28px}.section-heading{display:flex;justify-content:space-between;gap:24px;align-items:end}.section-heading p{max-width:440px;margin:0;color:var(--muted);font-size:14px;text-align:right}.variant-scroller{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:22px}.variant-card{display:grid;grid-template-columns:90px 1fr;gap:14px;align-items:center;padding:14px;border:1px solid var(--line);border-radius:16px;background:#faf7f0}.variant-card.selected{border:2px solid var(--sage);background:#f1f6f2}.variant-card h3{margin:6px 0 2px;font-size:15px}.variant-card p{margin:0;color:var(--muted);font-size:12px}.mini-plan{position:relative;width:88px;height:108px;border:2px solid #333;background:#fff}.mini-plan span{position:absolute;left:0;width:18px}.mini-plan .wide{top:0;height:62px;background:#eadbc2}.mini-plan .narrow{top:62px;height:41px;background:#d9e8dc}.mini-plan.reversed .wide{top:41px}.mini-plan.reversed .narrow{top:0}.mini-plan.plan-two .wide{height:66px}.mini-plan.plan-two .narrow{top:66px;height:32px}
.approach-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:22px}.approach-grid article{padding:20px;border:1px solid var(--line);border-radius:16px;background:#faf7f0}.approach-grid article.recommended{border:2px solid var(--sage);background:#eef5ef}.approach-grid h3{margin:7px 0 2px;font-size:19px}.approach-grid p{margin:0;color:var(--muted);font-size:13px}.approach-grid ul,.delivery-waves ul{margin:13px 0 0;padding-left:20px;color:#4f534c;font-size:13px}.experience-flow{display:grid;grid-template-columns:1fr auto 1fr auto 1fr auto 1fr;gap:10px;align-items:center;margin:18px 0;padding:20px;border-radius:18px;background:#252a26;color:#fff}.experience-flow div{display:flex;flex-direction:column;align-items:center;text-align:center}.experience-flow span{display:grid;place-items:center;width:30px;height:30px;border-radius:50%;background:#d6c3a2;color:#292a25;font-weight:900}.experience-flow strong{margin-top:7px;font-size:14px}.experience-flow small{color:#bfc6bf;font-size:11px}.experience-flow i{color:#d6c3a2;font-style:normal}
.responsibility-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}.responsibility-grid article{padding:18px;border:1px solid var(--line);border-radius:16px}.responsibility-grid h3{margin:0 0 12px}.capability-meter{height:34px;margin-top:7px;border-radius:8px;background:#eee9df;overflow:hidden}.capability-meter span{display:flex;align-items:center;width:var(--value);height:100%;padding-left:10px;background:var(--sage-soft);color:#355743;font-size:11px;font-weight:900;white-space:nowrap}
.delivery-waves{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:12px}.delivery-waves article{padding:18px;border:1px solid var(--line);border-radius:16px;background:#faf8f3}.delivery-waves h3{margin:7px 0 0;font-size:17px}.research-note h2{margin:0 0 12px;font-size:18px}.research-note>div{display:flex;flex-wrap:wrap;gap:8px}.research-note a{min-height:44px;display:inline-flex;align-items:center;padding:8px 12px;border-radius:10px;background:#f0ece3;color:#315566;text-decoration:none;font-size:12px;font-weight:800}.research-note a:hover{text-decoration:underline}
.mobile-nav{display:none}.toast{position:fixed;left:50%;bottom:22px;z-index:100;transform:translate(-50%,18px);padding:11px 15px;border-radius:10px;background:#1f221f;color:#fff;opacity:0;pointer-events:none;transition:.18s}.toast.show{opacity:1;transform:translate(-50%,0)}
dialog{width:min(520px,calc(100% - 24px));border:0;border-radius:22px;padding:0;box-shadow:0 26px 90px rgba(28,28,25,.28)}dialog::backdrop{background:rgba(28,29,27,.55);backdrop-filter:blur(4px)}dialog form{display:grid;gap:9px;padding:22px;background:var(--surface)}dialog header{display:flex;justify-content:space-between;align-items:start;margin-bottom:5px}dialog header span{font-size:11px;color:var(--brick);font-weight:900}dialog h2{margin:2px 0 0}dialog header button{width:44px;border:1px solid var(--line);border-radius:50%;background:#fff;font-size:22px}dialog form>button{display:flex;flex-direction:column;align-items:start;padding:12px 14px;border:1px solid var(--line);border-radius:12px;background:#fff;text-align:left}dialog form>button small{color:var(--muted)}dialog form>p{margin:6px 0 0;color:var(--muted);font-size:12px}
@media(max-width:980px){.app-header{grid-template-columns:1fr auto}.header-status{display:none}.decision-layout{grid-template-columns:1fr}.decision-rail{position:static}.variant-scroller{overflow-x:auto;grid-template-columns:repeat(3,minmax(280px,1fr));scroll-snap-type:x mandatory}.variant-card{scroll-snap-align:start}.delivery-waves{grid-template-columns:1fr}.measure-layout{grid-template-columns:1fr}.fact-stack{grid-template-columns:repeat(2,1fr)}}
@media(max-width:640px){html{scroll-padding-bottom:88px}.app-header{min-height:64px;padding:8px 12px}.wordmark span{font-size:8px}.wordmark strong{font-size:16px}.header-actions .ghost-button{display:none}.header-actions .primary-button{padding:0 14px}main{width:100%;padding:12px 10px 100px}.hero-card,.decision-rail,.comparison-section,.design-review,.research-note{border-radius:18px}.hero-copy{padding:20px 17px 16px}.hero-copy h1{font-size:30px}.hero-summary{font-size:16px}.evidence-row{display:grid;grid-template-columns:1fr}.evidence{font-size:11px}.view-tabs{margin:0 10px 10px}.view-stage,.view-panel{min-height:0}.hero-visual{height:auto;aspect-ratio:4/5}.hero-visual figcaption{align-items:flex-start;flex-direction:column}.measure-layout{padding:10px}.floor-plan{min-height:390px;padding:8px}.fact-stack{grid-template-columns:1fr 1fr;gap:7px}.fact-stack>div{padding:10px}.fact-stack strong{font-size:19px}#threeCanvas{height:62vh;min-height:430px}.three-toolbar{left:8px;right:8px;overflow-x:auto}.three-toolbar button{flex:1;min-width:82px}.three-note{left:8px;right:8px;text-align:center}.decision-rail,.comparison-section,.design-review,.research-note{padding:20px 16px}.section-heading{align-items:start;flex-direction:column;gap:6px}.section-heading p{text-align:left}.variant-scroller{margin-right:-16px;padding-right:16px}.approach-grid{grid-template-columns:1fr}.experience-flow{grid-template-columns:1fr;gap:7px}.experience-flow i{transform:rotate(90deg)}.responsibility-grid{grid-template-columns:1fr}.research-note>div{display:grid}.research-note a{width:100%}.mobile-nav{position:fixed;left:0;right:0;bottom:0;z-index:50;display:grid;grid-template-columns:repeat(4,1fr);padding:7px max(7px,env(safe-area-inset-right)) calc(7px + env(safe-area-inset-bottom)) max(7px,env(safe-area-inset-left));background:rgba(255,253,248,.96);border-top:1px solid var(--line);backdrop-filter:blur(16px)}.mobile-nav a,.mobile-nav button{min-height:54px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:1px;border:0;background:transparent;color:var(--muted);font-size:10px;text-decoration:none}.mobile-nav span{font-size:17px}.mobile-nav .active{color:var(--sage);font-weight:900}.toast{bottom:86px;width:max-content;max-width:calc(100% - 24px)}dialog{margin:auto 12px 12px;width:calc(100% - 24px);max-width:none;border-radius:22px}dialog[open]{animation:sheet-in .18s ease-out}@keyframes sheet-in{from{transform:translateY(30px);opacity:0}}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.toast,dialog[open]{transition:none;animation:none}}
.hero-copy h1{max-width:900px;font-size:clamp(28px,3.45vw,46px);text-wrap:balance}
@media(max-width:640px){.hero-copy h1{font-size:30px}}
.hero-card,.hero-copy,.eyebrow-row,.evidence-row,.hero-summary,.evidence{min-width:0;max-width:100%}
.hero-copy h1,.hero-summary,.evidence{overflow-wrap:anywhere}
.research-note>div>span{min-height:44px;display:inline-flex;align-items:center;padding:8px 12px;border-radius:10px;background:#f0ece3;color:#315566;font-size:12px;font-weight:800}
@media(max-width:640px){.research-note>div>span{width:100%}}
@media print{
  html{scroll-behavior:auto}
  body{background:#fff;color:#111}
  .app-header{position:static;background:#fff;box-shadow:none}
  .header-actions,.mobile-nav,.toast,dialog,.three-toolbar{display:none!important}
  main{width:100%;padding:12mm 0}
  .decision-layout{grid-template-columns:minmax(0,1fr) 82mm;gap:6mm}
  .hero-card,.decision-rail,.comparison-section,.design-review,.research-note{break-inside:avoid;box-shadow:none;border-color:#bbb}
  .decision-rail{position:static}
  .view-tabs{display:none}
  .view-stage,.view-panel,.hero-visual{min-height:0;height:auto}
  .hero-visual{aspect-ratio:4/3}
  .variant-scroller,.approach-grid,.delivery-waves{grid-template-columns:repeat(3,1fr);overflow:visible}
  a{color:#111;text-decoration:underline}
}