@font-face { font-family: "Sado Sans KR"; src: url("assets/fonts/NotoSansKR-Sado-Regular-v2.woff2") format("woff2"); font-style: normal; font-weight: 400; font-display: swap; }
@font-face { font-family: "Sado Latin Extended"; src: url("assets/fonts/NotoSans-SadoLatinExt-Regular.woff2") format("woff2"); font-style: normal; font-weight: 400; font-display: swap; }
@font-face { font-family: "Sado Sans KR"; src: url("assets/fonts/NotoSansKR-SadoColours-Regular.ttf") format("truetype"); font-style: normal; font-weight: 400; font-display: swap; unicode-range: U+AC80,U+C591,U+C815,U+D558; }
@font-face {
  font-family: "Sado Hanja";
  src: url("assets/fonts/MaShanZheng-SadoHanja-Regular.woff2") format("woff2");
  font-style: normal;
  font-weight: 400;
  font-display: swap;
}
:root {
  color-scheme: dark;
  background: #22313d;
  color: #e6e5e2;
  font-family: "Sado Sans KR", "Sado Latin Extended", Arial, sans-serif;
  --page-gutter: clamp(22px, 5vw, 80px);
  --content-width: 1320px;
  --muted-text: #e4e5e5;
}
.shell-brand img, .brand-mark h1 img, .model-entry-label img, .model-latin {
  mask-mode: luminance;
  mask-size: 100% 100%;
  mask-repeat: no-repeat;
}
.shell-brand img, .brand-mark h1 img { mask-image: url("assets/sado-refined-v10.png"); }
.model-entry-label img, .model-latin { mask-image: url("assets/doku-refined-v8.png"); }
.wordmark-ink {
  display: block;
  width: 100%;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 32px; }
body { margin: 0; background: #22313d; position: relative; isolation: isolate; }
.site-backdrop {
  position: fixed;
  inset: calc(-1 * clamp(220px, 27svh, 380px)) calc(-1 * max(120px, 16vw));
  translate: 0 var(--backdrop-y, 0px);
  z-index: -1;
  pointer-events: none;
  background: linear-gradient(rgb(0 0 0 / .60), rgb(0 0 0 / .60)), url("assets/sado-seven-clouds-square-v1.svg") center / cover no-repeat;
  opacity: 1;
}
.content-changing .site-backdrop { will-change: transform; }
@media (max-width: 680px) {
  .site-backdrop {
    background-position: 16% center;
  }
}
body > header, body > footer { position: relative; z-index: 1; }
.content-frame { position: relative; display: flow-root; }
a { color: inherit; text-decoration: none; }
a:hover { color: #fff; }
a:focus-visible { outline: 1px solid #f4f1de; outline-offset: 6px; }
.site-header {
  max-width: var(--content-width);
  margin-inline: auto;
  padding: 20px var(--page-gutter);
  min-height: 84px;
  display: grid;
  grid-template-columns: auto minmax(0,1fr) auto;
  align-items: center;
  gap: 20px;
  font-size: .875rem;
}
.shell-brand { display: inline-flex; align-items: center; width: 94px; height: 44px; overflow: hidden; flex-shrink: 0; mix-blend-mode: screen; }
.shell-brand img { display: block; width: 100%; height: auto; }
.home-link { padding: 0; }
.site-header .home-link { width: 188px; max-width: 100%; overflow: visible; }
body:not([data-page="home"]) .site-header .home-link { height: 80px; }
body[data-page="home"] .site-header .home-link { visibility: hidden; pointer-events: none; }
nav { display: flex; gap: clamp(22px, 3vw, 44px); color: var(--muted-text); }
nav a { display: inline-flex; align-items: center; min-height: 44px; }
.main-nav { justify-content: flex-end; gap: clamp(18px,2.5vw,36px); }
.main-nav [aria-current="page"] { color: #f0eeeb; text-decoration: underline; text-underline-offset: 6px; }
.language-switch { align-items: center; gap: 8px; margin-left: 24px; color: var(--muted-text); }
.language-switch [aria-current="page"] { color: #f0eeeb; text-decoration: underline; text-underline-offset: 6px; }
.language-switch span { color: #666; }
.case-stage {
  min-height: calc(100svh - 84px);
  max-width: var(--content-width);
  margin-inline: auto;
  padding: clamp(24px,4svh,48px) 16px 28px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: clamp(20px,3svh,36px);
}
.brand-intro { position: relative; display: flex; flex-direction: column; align-items: center; gap: 22px; width: min(100% - 32px, 560px); flex-shrink: 0; text-align: center; }
.brand-mark { width: clamp(190px,18vw,240px); flex-shrink: 0; line-height: 0; }
.brand-mark img { display: block; width: 100%; height: auto; opacity: .88; }
.brand-mark h1 { margin: 0; font-size: inherit; line-height: 0; }
.brand-rule { width: 68%; height: 1px; margin: 18px auto 0; background: #626262; }
.brand-hanja { display: block; margin: 18px auto 0; padding-left: .22em; color: #f2f1ee; font-family: "Sado Sans KR", sans-serif; font-size: clamp(30px,2.8vw,36px); font-weight: 400; line-height: 1.4; letter-spacing: .22em; }
.brand-meaning { position: relative; z-index: 1; margin: 0; max-width: 46ch; color: var(--muted-text); font-size: .875rem; line-height: 1.75; text-wrap: balance; }
html[lang="ko"] .brand-meaning { word-break: keep-all; }
.case-reveal { width: min(100%, 1040px); flex-shrink: 0; pointer-events: none; }
.case-silhouette { display: block; width: 100%; height: auto; user-select: none; -webkit-user-drag: none; }
.model-preview .case-reveal--front { width: min(100%, 720px); aspect-ratio: 1; overflow: hidden; }
/* Keep the approved photograph; use only the aligned cutout's alpha. */
.case-reveal--front .case-silhouette { position: absolute; left: 50%; transform: translateX(-50%); width: auto; height: 100%; max-width: none; mask-image: url("assets/soim-front-cutout-mask-v1.png"); mask-mode: alpha; mask-repeat: no-repeat; mask-size: 92% 92%; mask-position: 51% 50%; }
.section-link { display: inline-flex; min-height: 44px; align-items: center; gap: 18px; font-size: .875rem; color: var(--muted-text); padding: 10px; }
.main-nav .nav-model { font-size: 1rem; color: #e6e5e2; }
.model-entry { gap: 20px; max-width: 100%; font-size: clamp(22px,2.1vw,28px); letter-spacing: -.02em; color: #deddda; padding: 14px 22px; }
.model-entry-label { display: block; width: clamp(210px,22.5vw,270px); min-width: 0; line-height: 0; mix-blend-mode: screen; }
.model-entry-label img { display: block; width: 100%; height: auto; }
.model-entry-arrow { display: inline-block; flex-shrink: 0; font-size: 1.5rem; transition: transform 100ms linear; }
.model-entry:hover .model-entry-arrow, .model-entry:focus-visible .model-entry-arrow { transform: translateX(4px); }
.updates-section {
  width: min(calc(100% - var(--page-gutter) * 2), 1160px);
  margin: 32px auto 0;
  padding: 40px 0 80px;
  border-top: 1px solid #303030;
  display: grid;
  grid-template-columns: minmax(0,1fr) minmax(0,1fr);
  gap: clamp(32px,6vw,96px);
  align-items: start;
}
h2 { font-size: clamp(28px,3vw,40px); font-weight: 400; letter-spacing: -.035em; margin: 0 0 20px; }
.updates-section p, .page-heading p { color: var(--muted-text); font-size: 1rem; line-height: 1.7; margin: 0; max-width: 40ch; }
.signup-form { border: 0; padding: 0; margin: 0; min-width: 0; }
.signup-form > label { display: block; margin-bottom: 10px; font-size: .875rem; color: var(--muted-text); }
.signup-row { display: flex; gap: 10px; }
.signup-row input, .signup-row button { font: inherit; font-size: 1rem; border: 1px solid #383838; border-radius: 0; min-height: 46px; background: #080808; color: #dedede; padding: 12px; }
.signup-row input { min-width: 0; width: 100%; flex: 1; }
.signup-row input::placeholder { color: var(--muted-text); opacity: 1; }
.signup-row button { white-space: nowrap; flex-shrink: 0; }
.signup-row button, .form-submit { cursor: pointer; }
.signup-row button:hover, .form-submit:hover { border-color: #888; color: #fff; }
.signup-form .consent-row { display: flex; gap: 10px; align-items: flex-start; margin: 18px 0 10px; line-height: 1.5; }
.consent-row input { width: 16px; height: 16px; margin: 3px 0 0; flex-shrink: 0; accent-color: #c4c4c4; }
.form-note, .updates-section .form-note { font-size: .875rem; line-height: 1.6; color: var(--muted-text); max-width: 58ch; margin: 12px 0; }
.form-note a { text-decoration: underline; text-underline-offset: 3px; }
.form-status, .updates-section .form-status { min-height: 1.6em; margin: 14px 0 0; font-size: .875rem; line-height: 1.6; color: #dedede; max-width: 60ch; }
.form-status[data-error] { color: #ffd2cf; }
.form-trap { position: absolute; left: -10000px; width: 1px; height: 1px; overflow: hidden; }
.contact-layout { display: grid; grid-template-columns: minmax(0,640px) minmax(220px,1fr); gap: clamp(32px,7vw,100px); margin-top: 48px; }
.contact-form { min-width: 0; }
.form-field { margin-bottom: 22px; }
.form-field label { display: block; color: var(--muted-text); font-size: .875rem; margin-bottom: 10px; }
.form-field input, .form-field select, .form-field textarea { display: block; width: 100%; min-height: 48px; padding: 14px; border: 1px solid #444; border-radius: 0; background: #080808; color: #e6e5e2; font: inherit; font-size: 1rem; }
.form-field textarea { resize: vertical; line-height: 1.6; min-height: 160px; }
.form-submit { display: inline-flex; align-items: center; gap: 32px; min-height: 48px; padding: 12px 20px; margin-top: 12px; background: #080808; color: #ddd; border: 1px solid #555; font: inherit; }
button:disabled { cursor: wait; opacity: .55; }
.contact-links { display: flex; flex-direction: column; gap: 12px; font-size: .875rem; color: var(--muted-text); overflow-wrap: anywhere; }
.contact-links a { display: block; padding-block: 12px; }
input:focus-visible, select:focus-visible, textarea:focus-visible, button:focus-visible { outline: 1px solid #bbb; outline-offset: 3px; }
@media (max-width: 800px) { .contact-layout { grid-template-columns: minmax(0,1fr); gap: 24px; } }
.visually-hidden { position: absolute; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; }
footer { width: min(calc(100% - var(--page-gutter) * 2),1160px); margin: 0 auto; padding: 16px 0; border-top: 1px solid #303030; display: flex; justify-content: space-between; align-items: center; gap: 24px; color: var(--muted-text); font-size: .875rem; }
footer span { letter-spacing: .15em; }
footer a { min-height: 44px; display: inline-flex; align-items: center; }
.footer-home { gap: 12px; white-space: nowrap; }
.footer-contact { display: flex; flex-wrap: wrap; justify-content: center; gap: 4px 24px; }
.footer-contact a { overflow-wrap: anywhere; }
.contact-email { display: inline-flex; align-items: center; gap: 20px; min-height: 44px; max-width: 100%; margin-top: 40px; padding-bottom: 8px; border-bottom: 1px solid #666; font-size: clamp(18px,2.7vw,32px); line-height: 1.5; overflow-wrap: anywhere; }
.contact-email span { font-size: .75em; }
@media (max-width: 680px) {
  footer { flex-wrap: wrap; }
  .footer-contact { order: 3; flex-basis: 100%; justify-content: flex-start; }
}
.footer-home-label, .footer-home-arrow { letter-spacing: normal; }
.footer-home-arrow { font-size: 1.125rem; }
.footer-flag { display: block; width: 60px; height: 40px; object-fit: contain; opacity: .9; flex-shrink: 0; }
.page-shell { width: min(calc(100% - var(--page-gutter) * 2), 1160px); margin: 0 auto; min-height: calc(100svh - 161px); padding: clamp(64px,10vw,132px) 0 80px; }
.page-heading h1 { font-size: clamp(44px,6vw,80px); font-weight: 400; letter-spacing: -.04em; line-height: 1.1; margin: 0 0 28px; }
.page-story { padding-bottom: clamp(72px,10vw,140px); }
.story-layout { display: grid; grid-template-columns: minmax(120px,1fr) minmax(0,3fr); gap: clamp(32px,5vw,80px); align-items: start; }
.story-heading h1 { margin: 8px 0 0; color: var(--muted-text); font-size: 1rem; line-height: 1.5; font-weight: 400; }
.story-copy { min-width: 0; max-width: 760px; }
.story-lead { margin: 0 0 clamp(36px,5vw,64px); max-width: 26ch; font-size: clamp(28px,3.4vw,46px); font-weight: 400; letter-spacing: -.025em; line-height: 1.28; text-wrap: balance; }
.story-body { max-width: 65ch; color: var(--muted-text); font-size: clamp(16px,1.4vw,18px); line-height: 1.85; }
.story-body p { margin: 0 0 1.6em; }
.story-body p:last-child { margin-bottom: 0; color: #e6e5e2; }
html[lang="ko"] .story-copy { word-break: keep-all; overflow-wrap: break-word; }
html[lang="ko"] .story-lead { max-width: 22ch; line-height: 1.45; }
.model-preview { margin: clamp(40px,7vw,88px) auto 0; }
.model-preview .case-reveal { margin-inline: auto; }
.page-models { padding-top: clamp(44px,6vw,80px); }
.model-summary { margin: 0; }
.model-name { display: flex; align-items: center; justify-content: space-between; gap: 36px; }
.model-wordmark { width: clamp(220px,25vw,300px); flex: 0 0 auto; margin: 0; line-height: 0; }
.model-wordmark img { display: block; width: 100%; height: auto; }
.model-hanja { display: block; margin: 20px auto 0; text-align: center; color: #f2f1ee; font-family: "Sado Sans KR", sans-serif; font-size: 30px; font-weight: 400; line-height: 1.4; letter-spacing: .22em; padding-left: .22em; }
.model-name p { margin: 0; color: var(--muted-text); font-size: 1rem; line-height: 1.7; }
.spec-groups { display: grid; grid-template-columns: minmax(0,1fr); gap: 48px; margin-top: 44px; }
.spec-group h3 { font-size: 1.125rem; font-weight: 400; margin: 0 0 20px; }
.model-specs { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); grid-auto-rows: 1fr; gap: 18px; margin: 0; }
.model-specs > div { min-width: 0; min-height: 13.5rem; padding: 22px; display: grid; grid-template-rows: auto 1fr; gap: 24px; }
.model-specs dt { color: var(--muted-text); font-size: .875rem; line-height: 1.5; }
.model-specs dd { display: grid; grid-template-rows: minmax(3.5rem,auto) minmax(2.625rem,auto); align-content: end; gap: 12px; color: #e6e5e2; font-size: clamp(40px,4vw,56px); font-weight: 400; line-height: 1; margin: 0; white-space: nowrap; }
.model-specs .spec-main { align-self: end; }
.model-specs dd.spec-text { font-size: clamp(20px,2.4vw,30px); line-height: 1.2; white-space: normal; overflow-wrap: anywhere; }
.model-specs .spec-unit { font-size: 1rem; }
.model-specs .spec-detail { display: block; white-space: normal; color: var(--muted-text); font-size: .875rem; line-height: 1.5; }
.page-link { display: inline-flex; align-items: center; gap: 20px; min-height: 44px; margin-top: 32px; border-bottom: 1px solid #666; font-size: .875rem; }
.store-collection { margin-top: clamp(36px,5vw,56px); }
.store-model-mark { width: clamp(190px,23vw,260px); max-width: 100%; margin: 0 auto; line-height: 0; }
.store-model-mark img { display: block; width: 100%; height: auto; }
.store-grid { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: clamp(32px,5vw,64px); margin-top: 28px; }
.store-product { min-width: 0; }
.store-product-link { display: block; }
.store-product-preview { margin: 0; }
.store-product h3 { display: flex; align-items: center; justify-content: space-between; gap: 16px; margin: 20px 0 8px; font-family: inherit; font-size: clamp(22px,2.5vw,28px); font-weight: 400; letter-spacing: normal; line-height: 1.4; }
.store-colour-name { min-width: 0; color: #f2f1ee; }
.store-product-arrow { flex-shrink: 0; font-size: 1.125rem; }
.store-product p { margin: 0; color: var(--muted-text); font-size: .875rem; line-height: 1.7; }
.store-product-link:focus-visible { outline: 1px solid #bbb; outline-offset: 8px; }
@media (max-width: 680px) { .store-grid { grid-template-columns: minmax(0,1fr); gap: 44px; } }
@media (max-width: 900px) {
  .site-header { padding-block: 8px; min-height: 112px; grid-template-columns: minmax(0,1fr) auto; grid-template-rows: 44px auto; gap: 0 20px; }
  body[data-page] .site-header .home-link { width: 94px; height: 44px; }
  .main-nav { grid-column: 1 / -1; grid-row: 2; display: flex; justify-content: space-between; flex-wrap: wrap; gap: 0 16px; }
  .language-switch { grid-column: 2; grid-row: 1; margin-left: 0; }
  .case-stage { min-height: calc(100svh - 112px); padding: 40px 8px 32px; gap: clamp(36px,7svh,68px); }
  .brand-mark { width: clamp(180px,50vw,215px); }
  .case-reveal { width: 100%; }
  .updates-section { grid-template-columns: minmax(0,1fr); gap: 28px; margin-top: 12px; padding: 30px 0 52px; }
  .page-shell { min-height: calc(100svh - 189px); }
  .spec-groups { gap: 36px; }
  h2 { font-size: 1.875rem; }
}
@media (max-width: 360px) { .signup-row { flex-direction: column; } }
@media (max-width: 760px) {
  .model-name { flex-direction: column; align-items: flex-start; gap: 20px; }
  .model-wordmark { width: 220px; }
  .story-layout { grid-template-columns: minmax(0,1fr); gap: 28px; }
  .story-heading h1 { margin-top: 0; }
  .story-body { line-height: 1.8; }
  .model-specs { grid-template-columns: repeat(2,minmax(0,1fr)); gap: 12px; }
  .model-specs > div { padding: 18px; min-height: 12.25rem; gap: 20px; }
  .model-specs dd { grid-template-rows: minmax(3rem,auto) minmax(2.625rem,auto); }
}
@media (max-width: 340px) { .model-specs { grid-template-columns: minmax(0,1fr); } }
@media (min-width: 341px) and (max-width: 380px) { .model-specs dd { font-size: 36px; } }
@media (max-height: 600px) and (min-width: 641px) {
  .case-stage { min-height: 0; gap: 12px; padding-block: 12px 32px; }
  .brand-mark { width: 180px; }
  .case-reveal { max-width: 800px; }
}
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }


/* Black image backgrounds blend into the site's subtle pattern. */
.content-frame > main { position: relative; z-index: auto; }
.brand-mark { position: relative; z-index: 1; mix-blend-mode: screen; }
.case-reveal, .section-link, .updates-section, .content-frame > main.page-shell { position: relative; z-index: 1; }

/* The menu reads left to right: Home, Soim, Store, Purpose, Contact. */
html.is-scrolling { scroll-behavior: auto; }
.content-changing .content-frame { overflow: clip; }
.content-changing .content-frame > main { will-change: transform; pointer-events: none; }
#updates-title:focus, .content-frame > main:focus { outline: none; }
.language-loading a { cursor: progress; }
.language-word { display: inline-block; }
.language-out .language-word { animation: word-out 120ms var(--word-delay,0ms) ease-in both; }
.language-in .language-word { animation: word-in 140ms var(--word-delay,0ms) ease-out both; }
@media (prefers-reduced-motion: reduce) {
  .language-out .language-word { animation: page-fade-out 90ms linear both; }
  .language-in .language-word { animation: page-fade-in 90ms linear both; }
}
@keyframes word-out { from { opacity: 1; transform: translateY(0); } to { opacity: 0; transform: translateY(-4px); } }
@keyframes word-in { from { opacity: 0; transform: translateY(4px); } to { opacity: 1; transform: translateY(0); } }
@keyframes page-fade-out { from { opacity: 1; } to { opacity: 0; } }
@keyframes page-fade-in { from { opacity: 0; } to { opacity: 1; } }