@import url('https://api.fontshare.com/css?f[]=array@400,500,600,700&f[]=cabinet-grotesk@400,500,700&display=swap');
@import url('https://fonts.googleapis.com/css2?family=IBM+Plex+Sans+KR:wght@400;500;600;700&display=swap');
:root {
  --paper: #ecebe4;
  --sheet: #fbfaf4;
  --ink: #23272a;
  --muted: #62676b;
  --red: #d62f2b;
  --blue: #2557d6;
  --line: rgba(35, 39, 42, 0.42);
  --pad: 52px;
  --section: 104px;
  --radius-sm: 1px;
  --radius-md: 2px;
  font-family: Arial, "Malgun Gothic", sans-serif;
  background: var(--paper);
  color: var(--ink);
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; overflow-x: hidden; background: var(--paper); color: var(--ink); word-break: keep-all; overflow-wrap: break-word; }
body.menu-open { overflow: hidden; }
img { display: block; width: 100%; max-width: 100%; height: auto; object-fit: cover; background: #d6d5cf; }
a { color: inherit; text-decoration: none; }
button, input, textarea { font: inherit; color: inherit; }
button { cursor: pointer; }
:focus-visible { outline: 3px solid var(--blue); outline-offset: 3px; }
.skip { position: fixed; left: 16px; top: 12px; z-index: 40; transform: translateY(-140%); background: var(--ink); color: var(--paper); padding: 10px 14px; }
.skip:focus { transform: translateY(0); }
.notice { min-height: 32px; display: flex; align-items: center; justify-content: center; padding: 6px 20px; background: var(--ink); color: var(--sheet); font-size: 12px; letter-spacing: .08em; text-align: center; text-transform: uppercase; }
.header { position: sticky; top: 0; z-index: 30; min-height: 70px; display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: 34px; padding: 0 var(--pad); border-bottom: 2px solid var(--ink); background: rgba(236,235,228,.97); }
.mark { padding: 8px 12px; background: var(--ink); color: var(--sheet); font-size: 28px; letter-spacing: .14em; font-weight: 800; }
.nav { display: flex; gap: 28px; font-size: 13px; letter-spacing: .12em; }
.menu-toggle { display: none; width: 44px; height: 44px; border: 2px solid var(--ink); background: var(--paper); border-radius: var(--radius-md); }
.menu-toggle span, .menu-toggle::before, .menu-toggle::after { content: ""; display: block; width: 22px; height: 2px; margin: 5px auto; background: var(--ink); }
.mobile-nav { display: none; position: fixed; inset: 102px 0 auto; z-index: 25; padding: 20px var(--pad); background: var(--paper); border-bottom: 2px solid var(--ink); }
.mobile-nav a { display: block; padding: 16px 0; border-bottom: 1px solid var(--line); }
.menu-open .mobile-nav { display: block; }
.eyebrow { margin: 0 0 12px; color: var(--red); font-size: 12px; letter-spacing: .14em; font-weight: 800; text-transform: uppercase; }
h1, h2, h3, p { margin-top: 0; }
h1, h2, h3 { letter-spacing: 0; line-height: 1.1; text-wrap: balance; }
h1 { margin-bottom: 20px; font-size: 68px; }
h2 { margin-bottom: 22px; font-size: 46px; }
p { line-height: 1.65; color: var(--muted); }
.button, .manual-link { min-height: 46px; display: inline-flex; align-items: center; justify-content: center; border: 2px solid var(--ink); border-radius: var(--radius-md); padding: 12px 16px; background: transparent; font-weight: 800; }
.button.red { background: var(--red); border-color: var(--red); color: white; }
.button.dark { background: var(--ink); color: white; }
.manual-link { color: var(--blue); }
.num { display: inline-flex; align-items: center; justify-content: center; width: 48px; height: 32px; margin-bottom: 18px; background: var(--red); color: white; font-weight: 800; }
.folio-hero { position: relative; min-height: calc(100vh - 102px); display: grid; align-items: stretch; overflow: hidden; border-bottom: 2px solid var(--ink); }
.folio-hero picture, .folio-hero img { position: absolute; inset: 0; width: 100%; height: 100%; }
.folio-hero img { object-position: center; }
.hero-sheet { position: relative; z-index: 1; width: min(650px, 48%); min-height: calc(100vh - 102px); display: grid; align-content: end; padding: var(--pad); background: rgba(251,250,244,.86); border-right: 2px solid var(--ink); }
.hero-sheet::before { content: ""; position: absolute; inset: var(--pad) var(--pad) auto; height: 2px; background: var(--ink); }
.hero-sheet p { color: var(--ink); }
.parts-index { display: grid; grid-template-columns: 30% 40% 30%; border-bottom: 2px solid var(--ink); }
.part-copy, .buy-controls { min-width: 0; padding: var(--pad); background: var(--sheet); }
.exploded-plate { min-width: 0; padding: 22px; border-left: 2px solid var(--ink); border-right: 2px solid var(--ink); background: var(--paper); }
.exploded-plate img { aspect-ratio: 4 / 5; }
.price { color: var(--ink); font-size: 21px; font-weight: 800; }
.buy-controls { display: grid; align-content: center; gap: 16px; }
.option-row, fieldset { display: flex; flex-wrap: wrap; gap: 10px; margin: 0; padding: 0; border: 0; }
legend { width: 100%; margin-bottom: 8px; font-weight: 800; }
[data-option] { min-height: 42px; border: 2px solid var(--ink); border-radius: var(--radius-md); padding: 10px 12px; background: var(--sheet); }
[data-option][aria-pressed="true"] { background: var(--blue); color: white; }
.quantity { width: 152px; display: grid; grid-template-columns: 44px 1fr 44px; border: 2px solid var(--ink); border-radius: var(--radius-md); }
.quantity button { min-height: 42px; border: 0; background: var(--sheet); }
.quantity output { display: grid; place-items: center; border-left: 2px solid var(--ink); border-right: 2px solid var(--ink); background: white; }
.bag-status, .form-status { min-height: 24px; margin: 0; color: var(--blue); font-weight: 800; }
.assembly { display: grid; grid-template-columns: 42% 58%; padding: var(--section) var(--pad); border-bottom: 2px solid var(--ink); background: var(--ink); color: var(--sheet); }
.assembly p { color: #d7d8d9; }
.sequence-list { display: grid; border-top: 2px solid var(--sheet); }
.sequence-list button { min-height: 78px; border: 0; border-bottom: 2px solid var(--sheet); background: transparent; color: var(--sheet); text-align: left; font-size: 28px; font-weight: 800; }
.sequence-list button[aria-selected="true"] { color: white; padding-left: 28px; box-shadow: inset 8px 0 0 var(--red); }
.plate-row { display: grid; grid-template-columns: 24% 31% 20% 25%; gap: 0; padding: var(--section) var(--pad); border-bottom: 2px solid var(--ink); align-items: stretch; }
.plate-title { padding-right: 28px; }
figure { min-width: 0; margin: 0; padding: 18px; background: var(--sheet); border: 2px solid var(--ink); border-right: 0; }
figure:last-child { border-right: 2px solid var(--ink); }
figure img { aspect-ratio: 4 / 3; margin-bottom: 14px; }
.plate-main { transform: translateY(-32px); }
figcaption { font-weight: 800; }
.manual-image img { width: 100%; height: 74vh; min-height: 520px; object-fit: cover; border-bottom: 2px solid var(--ink); }
.routine, .utility-ledger, .contact, .spec-table, .faq, .final-panel { padding: var(--section) var(--pad); border-bottom: 2px solid var(--ink); }
.routine ol { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0; margin: 32px 0 0; padding: 0; border: 2px solid var(--ink); }
.routine li { list-style: none; min-width: 0; display: grid; gap: 10px; padding: 24px; background: var(--sheet); border-right: 2px solid var(--ink); }
.routine li:last-child { border-right: 0; }
.utility-ledger dl, .spec-table dl { display: grid; gap: 0; border-top: 2px solid var(--ink); }
.utility-ledger div, .spec-table div { display: grid; grid-template-columns: 190px 1fr; gap: 24px; padding: 20px 0; border-bottom: 1px solid var(--line); }
dt { color: var(--red); font-weight: 800; }
dd { margin: 0; line-height: 1.65; }
.contact { display: grid; grid-template-columns: 40% 60%; gap: 44px; background: var(--ink); color: var(--sheet); }
.contact p { color: #d7d8d9; }
.form { display: grid; gap: 14px; }
.form label { display: grid; gap: 8px; }
.form input, .form textarea { width: 100%; border: 2px solid var(--sheet); border-radius: var(--radius-md); background: transparent; padding: 13px; color: var(--sheet); }
.form textarea { min-height: 126px; resize: vertical; }
.manual-opening { display: grid; grid-template-columns: 38% 62%; gap: 28px; align-items: start; padding: 48px var(--pad) var(--section); border-bottom: 2px solid var(--ink); }
.purchase { position: sticky; top: 122px; min-width: 0; display: grid; gap: 16px; padding: 28px; background: var(--sheet); border: 2px solid var(--ink); }
.purchase h1 { font-size: 48px; }
.service-notes { display: grid; gap: 8px; margin: 0; padding: 16px 0 0 18px; border-top: 2px solid var(--ink); color: var(--muted); line-height: 1.55; }
.gallery { min-width: 0; }
.main-frame { border: 2px solid var(--ink); background: var(--sheet); }
.main-frame img { aspect-ratio: 4 / 5; }
.thumbs { display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; margin-top: 10px; }
.thumbs button { min-width: 0; padding: 0; border: 2px solid transparent; border-radius: var(--radius-md); background: var(--sheet); }
.thumbs button[aria-selected="true"] { border-color: var(--red); }
.thumbs img { aspect-ratio: 1; }
.manual-split { display: grid; grid-template-columns: 56px 1fr 1fr; gap: 34px; align-items: center; padding: var(--section) var(--pad); border-bottom: 2px solid var(--ink); }
.manual-split.reverse img { order: 3; }
.manual-split img { aspect-ratio: 4 / 3; border: 2px solid var(--ink); }
.line-plate { background: var(--sheet); }
.instruction-list { margin: 0; padding: 0; border-top: 2px solid var(--sheet); }
.instruction-list li { list-style: none; padding: 18px 0; border-bottom: 1px solid rgba(248,247,241,.35); color: var(--sheet); }
.manual-wide { position: relative; padding: 0; border-bottom: 2px solid var(--ink); }
.manual-wide .num { position: absolute; left: var(--pad); top: 34px; z-index: 1; }
.manual-wide img { height: 58vh; min-height: 420px; object-position: center; }
.faq details { border-top: 2px solid var(--ink); padding: 20px 0; }
.faq details:last-child { border-bottom: 2px solid var(--ink); }
.faq summary { cursor: pointer; font-size: 20px; font-weight: 800; }
.final-panel { background: var(--ink); color: white; }
.final-panel .bag-status { color: white; }
.sticky-buy { position: fixed; left: 0; right: 0; bottom: 0; z-index: 35; display: none; grid-template-columns: 1fr auto; gap: 12px; align-items: center; padding: 12px 20px; background: var(--ink); color: white; border-top: 2px solid var(--red); }
.sticky-buy button { border: 0; border-radius: var(--radius-md); background: var(--red); color: white; padding: 12px 18px; font-weight: 800; }
@media (max-width: 900px) {
  :root { --pad: 28px; --section: 82px; }
  .header { grid-template-columns: 1fr auto; }
  .nav { display: none; }
  .menu-toggle { display: block; }
  h1 { font-size: 48px; }
  h2, .purchase h1 { font-size: 34px; }
  .hero-sheet { width: min(540px, 82%); border-right: 0; }
  .parts-index, .assembly, .plate-row, .routine ol, .contact, .manual-opening, .manual-split { grid-template-columns: 1fr; }
  .exploded-plate { border-left: 0; border-right: 0; border-top: 2px solid var(--ink); border-bottom: 2px solid var(--ink); }
  figure, figure:last-child, .routine li { border-right: 2px solid var(--ink); border-bottom: 0; }
  .plate-main { transform: none; }
  .purchase { position: static; order: 2; margin: 24px 0 0; }
  .gallery { order: 1; }
  .manual-split.reverse img { order: initial; }
  .manual-image img, .manual-wide img { height: 56vh; min-height: 410px; }
  .sticky-buy { display: grid; }
  body { padding-bottom: 72px; }
}
@media (max-width: 430px) {
  :root { --pad: 20px; --section: 66px; }
  .notice { font-size: 11px; }
  .header { min-height: 62px; }
  .mobile-nav { inset: 94px 0 auto; }
  .mark { font-size: 22px; }
  .hero-sheet { width: 88%; min-height: calc(100vh - 94px); }
  h1 { font-size: 38px; }
  h2, .purchase h1 { font-size: 29px; }
  .utility-ledger div, .spec-table div { grid-template-columns: 1fr; gap: 8px; }
  .sequence-list button { font-size: 22px; }
  .sticky-buy span { font-size: 13px; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; animation-duration: .01ms !important; }
}

/* Fontshare typography differentiation */
:root {
  --font-heading: "Array", "IBM Plex Sans KR", "Apple SD Gothic Neo", "Malgun Gothic", serif;
  --font-body: "Cabinet Grotesk", "IBM Plex Sans KR", "Apple SD Gothic Neo", "Malgun Gothic", system-ui, sans-serif;
  --font-accent: "Array", "IBM Plex Sans KR", "Apple SD Gothic Neo", "Malgun Gothic", system-ui, sans-serif;
}
body {
  font-family: var(--font-body);
}
h1,
h2,
h3,
.hero-title,
.product-title,
.section-title,
.brand-mark,
.mark,
.logo,
.site-logo {
  font-family: var(--font-heading);
  font-weight: 600;
}
.eyebrow,
.section-kicker,
.notice,
.announce,
.nav,
.primary-nav,
.button,
.text-link,
.manual-link,
.price,
figcaption,
[data-option],
.gallery-controls button {
  font-family: var(--font-accent);
}
.brand-mark,
.mark,
.logo,
.site-logo {
  letter-spacing: 0.08em;
}
/* industrial refill system: squared display with compact grotesk body */