/* ==========================================================================
   MOVING FRAME GALLERY — design system
   ========================================================================== */
:root {
  --color-bg-main: #F8F8F6;
  --color-bg-glass: #EEF1F0;
  --color-bg-panel: #FFFFFF;
  --color-frame: #222426;
  --color-line: #BFC5C4;
  --color-soft-line: #DDE1DF;
  --color-accent: #9BA89F;
  --color-accent-soft: #D7DDD8;
  --color-lavender-gray: #E5E3EA;
  --color-text-main: #17181A;
  --color-text-sub: #40454A;
  --color-text-muted: #6B716F;
  --color-white: #FFFFFF;

  --font-title: 'Noto Sans KR', sans-serif;
  --font-label: 'Archivo', sans-serif;
  --container: 1180px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: 'Noto Sans KR', sans-serif;
  font-weight: 400;
  background: var(--color-bg-main);
  color: var(--color-text-main);
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
  word-break: keep-all;
  overflow-wrap: break-word;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { margin: 0; padding: 0; list-style: none; }
h1, h2, h3, h4 { font-family: var(--font-title); font-weight: 500; margin: 0; color: var(--color-text-main); }
p { margin: 0; }
.container { max-width: var(--container); margin: 0 auto; padding: 0 28px; }

.eyebrow {
  font-family: var(--font-label);
  font-size: 12px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--color-accent);
  display: inline-block;
  margin-bottom: 14px;
}
.section-title {
  font-size: clamp(24px, 3vw, 34px);
  letter-spacing: -0.01em;
  line-height: 1.4;
}
.section-lede {
  color: var(--color-text-sub);
  font-size: 16px;
  max-width: 640px;
  margin-top: 14px;
}
section { padding: 96px 0; border-top: 1px solid var(--color-soft-line); }
section:first-of-type { border-top: none; }

/* ---------- header ---------- */
.site-header { position: sticky; top: 0; z-index: 50; background: rgba(248,248,246,0.92); backdrop-filter: blur(8px); }
.header-inner { max-width: var(--container); margin: 0 auto; padding: 18px 28px; display: flex; align-items: center; justify-content: space-between; }
.brand { display: flex; align-items: center; gap: 10px; color: var(--color-frame); }
.brand-mark { color: var(--color-frame); }
.brand-name { font-family: var(--font-title); font-weight: 700; font-size: 18px; letter-spacing: 0.04em; }
.site-nav ul { display: flex; gap: 34px; }
.site-nav a { font-size: 14px; color: var(--color-text-sub); letter-spacing: 0.02em; padding: 6px 0; border-bottom: 1px solid transparent; transition: border-color .2s, color .2s; }
.site-nav a:hover { color: var(--color-text-main); border-color: var(--color-accent); }
.header-rail { height: 1px; background: linear-gradient(90deg, transparent, var(--color-line) 20%, var(--color-line) 80%, transparent); }
.nav-toggle { display: none; flex-direction: column; gap: 5px; background: none; border: none; cursor: pointer; padding: 6px; }
.nav-toggle span { width: 22px; height: 1.4px; background: var(--color-frame); }

/* ---------- buttons: thin frame style, not rounded pills ---------- */
.frame-btn {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 15px 34px; font-size: 14px; letter-spacing: 0.04em;
  border: 1px solid var(--color-frame); color: var(--color-frame);
  background: transparent; border-radius: 0; position: relative; transition: all .25s ease;
}
.frame-btn:hover { background: var(--color-frame); color: var(--color-white); }
.frame-btn.solid { background: var(--color-frame); color: var(--color-white); }
.frame-btn.solid:hover { background: var(--color-text-main); }
.frame-btn.accent { border-color: var(--color-accent); color: var(--color-text-main); }
.frame-btn.accent:hover { background: var(--color-accent); color: var(--color-white); }

/* ---------- 1. sliding frame opening (hero) ---------- */
.hero-opening { border-top: none; padding: 0; overflow: hidden; }
.hero-frame { display: grid; grid-template-columns: 1fr 1fr; min-height: 420px; position: relative; }
.hero-panel-left { position: relative; background: var(--color-bg-glass); overflow: hidden; }
.hero-panel-left img { width: 100%; height: 100%; object-fit: cover; opacity: 0.92; }
.hero-panel-left::after {
  content: ""; position: absolute; top: 0; right: 0; width: 40%; height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.55));
}
.hero-panel-right { display: flex; flex-direction: column; justify-content: center; padding: 60px 56px; position: relative; background: var(--color-bg-main); }
.hero-h1 {
  font-size: clamp(40px, 6vw, 68px);
  letter-spacing: 0.02em;
  margin-left: -6px;
  transform: translateX(-14px);
  line-height: 1.1;
}
.hero-sub { margin-top: 24px; color: var(--color-text-sub); font-size: 16px; max-width: 420px; }
.hero-kw { margin-top: 18px; display: flex; flex-wrap: wrap; gap: 8px; }
.hero-kw span { font-family: var(--font-label); font-size: 11px; letter-spacing: 0.14em; color: var(--color-text-muted); border: 1px solid var(--color-soft-line); padding: 5px 10px; }
.hero-cta { margin-top: 36px; display: flex; gap: 14px; }
.hero-rail-mark { margin-top: 48px; height: 1px; background: var(--color-line); position: relative; width: 100%; }
.hero-rail-mark::before { content: ""; position: absolute; left: 0; top: -3px; width: 26px; height: 7px; background: var(--color-accent); opacity: .6; }

/* ---------- 2. opening direction simulation ---------- */
.sim-rail-wrap { overflow-x: auto; padding-bottom: 8px; }
.sim-rail { position: relative; min-width: 900px; height: 2px; background: var(--color-line); margin: 70px 0 30px; }
.sim-rail-track { display: flex; justify-content: space-between; position: relative; }
.sim-node { position: relative; width: 19%; text-align: center; }
.sim-node .panel { height: 90px; background: var(--color-bg-panel); border: 1px solid var(--color-frame); margin: 0 auto 18px; position: relative; box-shadow: 3px 0 0 -1px var(--color-accent-soft); }
.sim-node.left .panel { transform: translateX(-10%); }
.sim-node.right .panel { transform: translateX(10%); }
.sim-node .arrow { font-family: var(--font-label); font-size: 11px; color: var(--color-accent); letter-spacing: .08em; }
.sim-node .label { font-size: 14px; margin-top: 8px; }
.sim-node .desc { font-size: 12.5px; color: var(--color-text-muted); margin-top: 4px; }
.sim-node::before { content:""; position:absolute; top:0; left:50%; width:1px; height:8px; background:var(--color-line); }
@media (min-width: 861px) { .sim-rail-wrap { overflow-x: visible; } }

/* ---------- 3. space divide before/after ---------- */
.divide-list { display: flex; flex-direction: column; gap: 64px; margin-top: 40px; }
.divide-row { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 48px; align-items: center; }
.divide-row:nth-child(even) { grid-template-columns: 0.9fr 1.1fr; }
.divide-row:nth-child(even) .divide-photo { order: 2; }
.divide-photo { position: relative; border: 1px solid var(--color-line); background: var(--color-bg-glass); }
.divide-photo img { width: 100%; max-height: 520px; object-fit: cover; display: block; }
.divide-boundary { position: absolute; top: 0; bottom: 0; left: 50%; width: 1px; background: repeating-linear-gradient(to bottom, var(--color-accent) 0 6px, transparent 6px 12px); }
.divide-text .eyebrow { margin-bottom: 10px; }
.divide-text h3 { font-size: 20px; margin-bottom: 10px; }
.divide-text p { color: var(--color-text-sub); font-size: 15px; max-width: 420px; }

/* ---------- 4. service rail (naver thumbnail cards) ---------- */
.svc-rail { display: flex; flex-direction: column; row-gap: 32px; margin-top: 44px; }
.svc-row { display: flex; align-items: flex-end; }
.svc-row-1 { margin-left: -28px; }
.svc-row-2 { margin-left: 56px; }
.svc-card { position: relative; background: var(--color-bg-panel); border: 1px solid var(--color-line); margin-right: -24px; transition: transform .25s ease, z-index 0s; }
.svc-card:hover { transform: translateY(-10px); z-index: 5; }
.svc-card img { width: 100%; height: 68%; object-fit: cover; display: block; }
.svc-card .svc-body { padding: 20px 22px; border-top: 1px solid var(--color-soft-line); }
.svc-card .svc-tag { font-family: var(--font-label); font-size: 10px; letter-spacing: .16em; color: var(--color-accent); text-transform: uppercase; display: block; }
.svc-card .svc-name { font-size: 19px; font-weight: 500; letter-spacing: -0.01em; margin-top: 7px; display: block; }
.svc-card.sz-a { width: 340px; height: 520px; }
.svc-card.sz-b { width: 400px; height: 400px; }
.svc-card.sz-c { width: 360px; height: 540px; }
.svc-card.sz-d { width: 440px; height: 440px; }
.svc-card.sz-e { width: 380px; height: 500px; }

/* ---------- 5. structure diagram ---------- */
.structure-wrap { position: relative; margin-top: 56px; display: flex; justify-content: center; }
.structure-img { max-width: 680px; width: 100%; max-height: 860px; object-fit: contain; border: 1px solid var(--color-line); }
.structure-labels { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px 28px; margin-top: 48px; }
.structure-label { border-top: 1px solid var(--color-soft-line); padding-top: 12px; }
.structure-label .num { font-family: var(--font-label); font-size: 11px; color: var(--color-accent); letter-spacing: .1em; }
.structure-label .name { font-size: 15px; margin-top: 4px; }
.structure-label .note { font-size: 12.5px; color: var(--color-text-muted); margin-top: 3px; }

/* ---------- 6. door type select panel ---------- */
.type-select { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: 0; margin-top: 44px; border: 1px solid var(--color-line); }
.type-visual { position: relative; background: var(--color-bg-glass); border-right: 1px solid var(--color-line); min-height: 460px; }
.type-visual img { width: 100%; height: 100%; object-fit: cover; }
.type-tabs { display: flex; flex-direction: column; }
.type-tab { padding: 22px 30px; border-bottom: 1px solid var(--color-soft-line); cursor: pointer; position: relative; }
.type-tab:last-child { border-bottom: none; }
.type-tab::before { content:""; position:absolute; left:0; top:0; bottom:0; width:0; background: var(--color-accent); transition: width .25s ease; }
.type-tab.active::before, .type-tab:hover::before { width: 3px; }
.type-tab .t-name { font-size: 17px; }
.type-tab .t-meta { font-size: 13px; color: var(--color-text-muted); margin-top: 6px; display: none; }
.type-tab.active .t-meta { display: block; }
.type-tab .t-link { font-family: var(--font-label); font-size: 11px; letter-spacing: .08em; color: var(--color-accent); margin-top: 10px; display: inline-block; }

/* ---------- 7. space condition report ---------- */
.report-plan { position: relative; margin-top: 48px; border: 1px solid var(--color-line); background: var(--color-bg-panel); padding: 56px 40px; }
.report-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: var(--color-soft-line); }
.report-cell { background: var(--color-bg-panel); padding: 26px 20px; min-height: 140px; position: relative; }
.report-cell .r-tag { font-family: var(--font-label); font-size: 10px; letter-spacing: .1em; color: var(--color-accent); }
.report-cell .r-text { font-size: 14.5px; margin-top: 10px; }
.report-cell.wide { grid-column: span 2; }

/* ---------- 8. showcase ---------- */
.showcase-grid { display: grid; grid-template-columns: 1.4fr 1fr; gap: 24px; margin-top: 44px; }
.showcase-main img { width: 100%; height: 640px; object-fit: cover; border: 1px solid var(--color-line); display: block; }
.showcase-detail { display: flex; flex-direction: column; gap: 24px; height: 640px; }
.d-figure { margin: 0; position: relative; flex: 1 1 0; min-height: 0; overflow: hidden; border: 1px solid var(--color-line); }
.d-figure img { width: 100%; height: 100%; object-fit: cover; display: block; }
.d-figure figcaption { position: absolute; bottom: 12px; left: 12px; font-family: var(--font-label); font-size: 11px; letter-spacing: .1em; color: var(--color-white); background: rgba(34,36,38,0.72); padding: 5px 12px; }
.showcase-note { grid-column: 1 / -1; color: var(--color-text-sub); font-size: 14.5px; max-width: 640px; margin-top: 8px; }

/* ---------- 9. local sliding panel ---------- */
.local-rail { display: flex; margin-top: 44px; border-top: 1px solid var(--color-line); border-bottom: 1px solid var(--color-line); }
.local-panel { position: relative; padding: 40px 22px; border-right: 1px solid var(--color-soft-line); flex: 1 1 0; transition: flex .3s ease, background .3s ease; }
.local-panel:last-child { border-right: none; }
.local-panel:hover { flex: 1.6 1 0; background: var(--color-bg-glass); }
.local-panel .l-name { font-size: 16px; writing-mode: horizontal-tb; }
.local-panel .l-short { font-size: 12.5px; color: var(--color-text-muted); margin-top: 10px; }
.local-panel:nth-child(1) { padding-top: 60px; }
.local-panel:nth-child(3) { padding-top: 20px; }
.local-panel:nth-child(5) { padding-top: 50px; }

/* ---------- 10. FAQ check table ---------- */
.faq-groups { margin-top: 44px; display: flex; flex-direction: column; gap: 40px; }
.faq-group-title { font-family: var(--font-label); font-size: 12px; letter-spacing: .14em; color: var(--color-accent); text-transform: uppercase; margin-bottom: 14px; }
.faq-row { display: grid; grid-template-columns: 40px 1fr; gap: 18px; padding: 18px 0; border-top: 1px solid var(--color-soft-line); }
.faq-row:last-child { border-bottom: 1px solid var(--color-soft-line); }
.faq-row .q-mark { font-family: var(--font-label); color: var(--color-line); font-size: 20px; }
.faq-row .q-text { font-size: 15.5px; }
.faq-row .a-text { font-size: 14.5px; color: var(--color-text-sub); margin-top: 8px; }

/* ---------- 11. final CTA ---------- */
.final-cta { background: var(--color-frame); color: var(--color-white); text-align: center; padding: 100px 0; border-top: none; }
.final-cta .section-title { color: var(--color-white); }
.final-cta .section-lede { color: rgba(255,255,255,0.7); margin-left: auto; margin-right: auto; }
.final-cta .cta-row { display: flex; gap: 16px; justify-content: center; margin-top: 40px; }
.final-cta .frame-btn { border-color: rgba(255,255,255,0.5); color: var(--color-white); }
.final-cta .frame-btn:hover { background: var(--color-white); color: var(--color-frame); }
.final-cta .frame-btn.solid { background: var(--color-accent); border-color: var(--color-accent); }
.final-cta .frame-btn.solid:hover { background: var(--color-accent-soft); color: var(--color-frame); }

/* ---------- footer ---------- */
.site-footer { padding: 56px 0 28px; }
.footer-inner { max-width: var(--container); margin: 0 auto; padding: 0 28px; display: flex; justify-content: space-between; gap: 40px; flex-wrap: wrap; }
.footer-mark { display: block; width: 30px; height: 30px; border: 1px solid var(--color-line); position: relative; }
.footer-mark::before, .footer-mark::after { content:""; position:absolute; background: var(--color-line); }
.footer-mark::before { left: 10px; top: 4px; bottom: 4px; width: 1px; }
.footer-mark::after { left: 4px; right: 4px; top: 15px; height: 1px; }
.footer-desc { margin-top: 12px; font-size: 13px; color: var(--color-text-muted); max-width: 260px; }
.footer-biz { font-size: 13.5px; color: var(--color-text-sub); }
.footer-biz p { margin: 3px 0; }
.footer-biz a { color: var(--color-accent); }
.footer-copy { text-align: center; font-size: 12px; color: var(--color-text-muted); margin-top: 40px; }

/* ---------- generic page-header used on subpages ---------- */
.page-frame-head { padding: 64px 0 56px; border-top: none; }
.page-frame-head .section-title { margin-top: 10px; }
.crumb { font-family: var(--font-label); font-size: 11px; letter-spacing: .1em; color: var(--color-text-muted); }
.crumb a { color: var(--color-accent); }

.related-links { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 30px; }
.related-links a { border: 1px solid var(--color-soft-line); padding: 10px 18px; font-size: 13.5px; }
.related-links a:hover { border-color: var(--color-accent); color: var(--color-accent); }

.related-cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(190px, 1fr)); gap: 16px; margin-top: 30px; }
.related-cards a { display: block; border: 1px solid var(--color-line); background: var(--color-bg-glass); transition: transform .2s ease; }
.related-cards a:hover { transform: translateY(-4px); }
.related-cards img { width: 100%; height: 230px; object-fit: contain; background: var(--color-bg-glass); display: block; }
.related-cards p { padding: 10px 14px; font-size: 14px; border-top: 1px solid var(--color-soft-line); background: var(--color-bg-panel); }

/* ---------- repair case before/after compare ---------- */
.case-compare { margin-top: 44px; }
.case-pair { display: grid; grid-template-columns: 1fr 1fr; gap: 1px; background: var(--color-line); border: 1px solid var(--color-line); }
.case-pair figure { margin: 0; position: relative; background: var(--color-bg-glass); overflow: hidden; }
.case-pair img { width: 100%; height: auto; aspect-ratio: 3 / 4; object-fit: cover; display: block; }
.case-pair figcaption { position: absolute; top: 12px; left: 12px; font-family: var(--font-label); font-size: 11px; letter-spacing: .12em; color: var(--color-white); background: rgba(34,36,38,0.72); padding: 5px 12px; }
.case-note { margin-top: 20px; color: var(--color-text-sub); font-size: 14.5px; max-width: 680px; }

/* ---------- other-region photo panels ---------- */
.region-more-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin-top: 32px; }
.region-more-card { border: 1px solid var(--color-line); background: var(--color-bg-panel); transition: transform .2s ease; }
.region-more-card:hover { transform: translateY(-6px); }
.region-more-card img { width: 100%; height: 280px; object-fit: cover; border-bottom: 1px solid var(--color-soft-line); }
.region-more-card p { padding: 12px 14px; font-size: 14px; }

/* ---------- sitemap page ---------- */
.sitemap-list { margin-top: 40px; display: flex; flex-direction: column; }
.sitemap-item { display: grid; grid-template-columns: 240px 1fr; gap: 20px; padding: 18px 0; border-top: 1px solid var(--color-soft-line); }
.sitemap-item:last-child { border-bottom: 1px solid var(--color-soft-line); }
.sitemap-item .s-name { font-size: 15.5px; }
.sitemap-item .s-desc { font-size: 14px; color: var(--color-text-sub); }

/* ---------- contact form ---------- */
.contact-layout { display: grid; grid-template-columns: 1fr 1.2fr; gap: 56px; margin-top: 44px; }
.contact-notes { border-right: 1px solid var(--color-soft-line); padding-right: 40px; }
.contact-notes ul { display: flex; flex-direction: column; gap: 16px; margin-top: 20px; }
.contact-notes li { font-size: 14.5px; color: var(--color-text-sub); padding-left: 16px; border-left: 1px solid var(--color-line); }
.contact-form label { display: block; font-size: 13px; color: var(--color-text-sub); margin-bottom: 6px; }
.form-row { margin-bottom: 20px; }
.form-row.two { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.contact-form input[type=text], .contact-form input[type=tel], .contact-form select, .contact-form textarea {
  width: 100%; border: none; border-bottom: 1px solid var(--color-line); background: transparent; padding: 10px 2px; font-family: inherit; font-size: 14.5px; color: var(--color-text-main);
}
.contact-form input:focus, .contact-form select:focus, .contact-form textarea:focus { outline: none; border-bottom-color: var(--color-accent); }
.radio-set { display: flex; gap: 20px; flex-wrap: wrap; }
.radio-set label { display: flex; align-items: center; gap: 6px; font-size: 14px; color: var(--color-text-main); }
.contact-form button { margin-top: 10px; }
.form-note { font-size: 12.5px; color: var(--color-text-muted); margin-top: 14px; }

/* ---------- responsive ---------- */
@media (max-width: 960px) {
  .hero-frame { grid-template-columns: 1fr; min-height: auto; }
  .hero-panel-left { height: 320px; border-right: none; border-bottom: 1px solid var(--color-line); }
  .hero-panel-right { padding: 44px 24px; }
  .hero-h1 { transform: none; margin-left: 0; }
  .divide-row, .divide-row:nth-child(even) { grid-template-columns: 1fr; }
  .divide-row:nth-child(even) .divide-photo { order: 0; }
  .type-select { grid-template-columns: 1fr; }
  .type-visual { min-height: 260px; border-right: none; border-bottom: 1px solid var(--color-line); }
  .showcase-grid { grid-template-columns: 1fr; }
  .showcase-main img { height: 360px; }
  .showcase-detail { flex-direction: row; height: 220px; }
  .local-rail { flex-direction: column; }
  .local-panel { border-right: none; border-bottom: 1px solid var(--color-soft-line); padding-top: 24px !important; }
  .local-panel:hover { flex: 1 1 0; }
  .report-grid { grid-template-columns: repeat(2, 1fr); }
  .contact-layout { grid-template-columns: 1fr; }
  .contact-notes { border-right: none; padding-right: 0; border-bottom: 1px solid var(--color-soft-line); padding-bottom: 30px; }
  .site-nav { position: fixed; top: 65px; left: 0; right: 0; background: var(--color-bg-main); border-top: 1px solid var(--color-soft-line); transform: translateY(-120%); transition: transform .25s ease; }
  .site-nav.open { transform: translateY(0); }
  .site-nav ul { flex-direction: column; gap: 0; padding: 8px 28px 20px; }
  .site-nav li { border-bottom: 1px solid var(--color-soft-line); }
  .site-nav a { display: block; padding: 14px 0; }
  .nav-toggle { display: flex; }
  section { padding: 64px 0; }
  .structure-labels { grid-template-columns: repeat(2, 1fr); }
  .sitemap-item { grid-template-columns: 1fr; gap: 4px; }
  .form-row.two { grid-template-columns: 1fr; }
  .region-more-grid { grid-template-columns: repeat(2, 1fr); }
  .case-pair { grid-template-columns: 1fr; }
  .svc-row { flex-direction: column; margin-left: 0 !important; row-gap: 20px; }
  .svc-card { margin-right: 0 !important; width: 100% !important; height: 320px !important; }
}