/* ─────────────────────────────────────────────
   Qinnotek website — design tokens & base
   ───────────────────────────────────────────── */

:root {
  /* Brand palette — deep navy + warm orange (industrial enterprise) */
  --c-ink:        #0a1428;
  --c-ink-2:      #16243f;
  --c-ink-soft:   #2c3a55;
  --c-mute:       #6b7589;
  --c-line:       #e3e6ec;
  --c-line-soft:  #eef0f4;
  --c-bg:         #f7f6f2;
  --c-bg-2:       #ffffff;
  --c-accent:     #e85a1a;       /* Qinnotek orange */
  --c-accent-2:   #f59e0b;
  --c-accent-soft:#ffe9dc;

  /* Type */
  --f-sans: "Pretendard", "Pretendard Variable", -apple-system, BlinkMacSystemFont, system-ui, sans-serif;
  --f-display: "Space Grotesk", "Pretendard", system-ui, sans-serif;
  --f-mono: "JetBrains Mono", ui-monospace, "SF Mono", Menlo, monospace;

  /* Spacing scale */
  --gutter: clamp(20px, 4vw, 64px);
  --max-w: 1280px;

  --r-sm: 6px;
  --r-md: 10px;
  --r-lg: 18px;
}

/* Dark mode override (toggled via class) */
.theme-dark {
  --c-ink:       #f5f4ef;
  --c-ink-2:     #e7e6e1;
  --c-ink-soft:  #c7c8cd;
  --c-mute:      #8a92a5;
  --c-line:      #1f2740;
  --c-line-soft: #161d33;
  --c-bg:        #07101f;
  --c-bg-2:      #0c1830;
  --c-accent-soft: #2a1810;
}

/* Theme variants */
.theme-charcoal {
  --c-ink: #0d0f12;
  --c-bg:  #efece5;
  --c-accent: #ff5f1f;
}
.theme-mono {
  --c-accent: #0a1428;
  --c-accent-soft: #e3e6ec;
}
.theme-emerald {
  --c-accent: #0f8a55;
  --c-accent-soft: #d8ece1;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

body {
  font-family: var(--f-sans);
  color: var(--c-ink);
  background: var(--c-bg);
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  font-feature-settings: "ss06" 1, "tnum" 1;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: default; }

::selection { background: var(--c-accent); color: #fff; }

/* ── Layout shells ───────────────────────────── */
.wrap {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 var(--gutter);
}
section { position: relative; }

/* ── Typographic primitives ──────────────────── */
.eyebrow {
  font-family: var(--f-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--c-mute);
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.eyebrow::before {
  content: "";
  width: 18px; height: 1px;
  background: currentColor;
  opacity: .6;
}

.section-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 32px;
  margin-bottom: 48px;
  flex-wrap: wrap;
}
.section-head h2 {
  font-family: var(--f-display);
  font-size: clamp(36px, 5vw, 64px);
  letter-spacing: -0.025em;
  line-height: 1;
  margin: 12px 0 0;
  font-weight: 500;
}
.section-head h2 .ko {
  font-family: var(--f-sans);
  font-weight: 700;
  letter-spacing: -0.02em;
}
.section-head .lead {
  max-width: 480px;
  color: var(--c-ink-soft);
  font-size: 15px;
}

/* ── Top bar ─────────────────────────────────── */
.topbar {
  position: sticky;
  top: 0;
  z-index: 100;
  background: color-mix(in srgb, var(--c-bg) 88%, transparent);
  backdrop-filter: saturate(180%) blur(16px);
  -webkit-backdrop-filter: saturate(180%) blur(16px);
  border-bottom: 1px solid color-mix(in srgb, var(--c-line) 60%, transparent);
}
.topbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 var(--gutter);
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--f-display);
  font-weight: 600;
  font-size: 18px;
  letter-spacing: -0.01em;
}
.brand .mark {
  width: 26px; height: 26px;
  border-radius: 6px;
  background: var(--c-ink);
  color: var(--c-bg);
  display: grid; place-items: center;
  font-size: 14px;
  font-weight: 700;
  position: relative;
}
.brand .mark.has-logo {
  background: transparent;
  border-radius: 0;
  width: 36px; height: 28px;
  padding: 0;
}
.brand .mark::after {
  content: "";
  position: absolute;
  inset: auto -3px -3px auto;
  width: 8px; height: 8px;
  background: var(--c-accent);
  border-radius: 2px;
}
.brand .mark.has-logo::after { display: none; }

/* Full logo image — replaces mark + text */
.brand-full {
  height: 34px;
  width: auto;
  max-width: 220px;
  object-fit: contain;
  display: block;
}
.topbar .brand-full { height: 34px; }
.foot .brand-full { height: 40px; max-width: 260px; }

/* ── YouTube strip (구축사례 상단) — 2×2 그리드 겹 인라인 재생 ─────── */
.yt-strip {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  margin-bottom: 40px;
}
@media (max-width: 560px) { .yt-strip { grid-template-columns: 1fr; } }
.yt-card {
  display: flex;
  flex-direction: column;
  border-radius: var(--r-md);
  overflow: hidden;
  background: var(--c-bg);
  border: 1px solid var(--c-line);
  transition: transform .2s, box-shadow .2s;
}
.yt-card:hover { transform: translateY(-2px); box-shadow: 0 8px 24px -12px rgba(10,20,40,.25); }
.yt-card.playing { transform: none !important; }
.yt-card.playing:hover { box-shadow: none; }
.yt-card .yt-iframe {
  width: 100%; aspect-ratio: 16/9; border: 0; display: block;
  background: #000;
}
.yt-thumb {
  position: relative;
  aspect-ratio: 16/9;
  background: linear-gradient(135deg, #1a1a1a, #2a2a2a);
  background-size: cover;
  background-position: center;
  display: grid;
  place-items: center;
}
.yt-thumb::before {
  content: "";
  position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(0,0,0,0) 60%, rgba(0,0,0,.5));
}
.yt-play {
  position: relative;
  z-index: 1;
  width: 48px; height: 48px;
  background: rgba(255, 0, 0, .92);
  color: #fff;
  border-radius: 50%;
  display: grid; place-items: center;
  font-size: 16px;
  padding-left: 4px;
  box-shadow: 0 6px 20px -6px rgba(0,0,0,.6);
}
.yt-idx {
  position: absolute;
  top: 10px; left: 10px;
  z-index: 1;
  font-family: var(--f-mono);
  font-size: 10px;
  letter-spacing: 0.1em;
  background: rgba(0,0,0,.6);
  color: #fff;
  padding: 3px 8px;
  border-radius: 4px;
}
.yt-meta { padding: 14px 16px 18px; }
.yt-source {
  font-family: var(--f-mono);
  font-size: 10px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: #ff0000;
  font-weight: 500;
}
.yt-meta h5 {
  margin: 6px 0 0;
  font-size: 14px;
  line-height: 1.35;
  font-weight: 600;
  letter-spacing: -0.01em;
  overflow: hidden;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
}

/* ── PR scroller (홍보자료 가로 스크롤) ─────── */
.pr-scroller {
  position: relative;
  margin: 0 calc(var(--gutter) * -0.5);
  padding: 0 calc(var(--gutter) * 0.5);
}
.pr-row {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: minmax(280px, calc((100% - 48px) / 3));
  gap: 24px;
  overflow-x: auto;
  overflow-y: hidden;
  scroll-snap-type: x mandatory;
  scrollbar-width: none;
  padding-bottom: 12px;
  scroll-padding: 0;
}
.pr-row::-webkit-scrollbar { display: none; }
.pr-row .pr-card { scroll-snap-align: start; min-width: 0; }
.pr-row .pr-card { background: var(--c-ink-2); }   /* keep inherited */

.scroll-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  z-index: 5;
  width: 44px; height: 44px;
  border-radius: 50%;
  background: var(--c-bg);
  color: var(--c-ink);
  border: 1px solid var(--c-line);
  font-size: 22px;
  font-family: var(--f-display);
  font-weight: 400;
  display: grid;
  place-items: center;
  box-shadow: 0 6px 20px -8px rgba(0,0,0,.35);
  transition: opacity .15s, transform .15s, background .15s;
}
.scroll-btn:hover { background: var(--c-accent); color: #fff; border-color: var(--c-accent); }
.scroll-btn.prev { left: 8px; }
.scroll-btn.next { right: 8px; }
.scroll-btn.disabled { opacity: .35; pointer-events: none; }
@media (max-width: 720px) { .scroll-btn { width: 36px; height: 36px; font-size: 18px; } }

/* PR section dark-bg variant overrides */
.pr .scroll-btn { background: var(--c-ink-2); color: var(--c-bg); border-color: var(--c-line); }
.pr .scroll-btn:hover { background: var(--c-accent); color: #fff; border-color: var(--c-accent); }
.brand small {
  display: block;
  font-family: var(--f-mono);
  font-size: 9px;
  color: var(--c-mute);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-weight: 500;
  margin-top: -2px;
}
.nav {
  display: flex;
  gap: 28px;
  align-items: center;
  font-size: 14px;
}
.nav a {
  color: var(--c-ink-soft);
  transition: color .15s;
  position: relative;
}
.nav a:hover { color: var(--c-ink); }
.nav .lang {
  font-family: var(--f-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--c-mute);
  border-left: 1px solid var(--c-line);
  padding-left: 20px;
}
.nav .cta {
  padding: 9px 18px;
  background: var(--c-ink);
  color: var(--c-bg);
  border-radius: 999px;
  font-weight: 600;
}
.nav .cta:hover {
  background: var(--c-accent);
  color: #fff;
}
@media (max-width: 880px) {
  .nav a:not(.cta):not(.lang) { display:none; }
}

/* ── Hero ─────────────────────────────────────── */
.hero {
  padding: clamp(48px, 9vw, 120px) 0 clamp(80px, 12vw, 140px);
  position: relative;
  overflow: hidden;
}
/* Grid layer (default) */
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--c-line-soft) 1px, transparent 1px),
    linear-gradient(90deg, var(--c-line-soft) 1px, transparent 1px);
  background-size: 64px 64px;
  background-position: center;
  mask-image: radial-gradient(ellipse 80% 70% at 50% 35%, #000 30%, transparent 80%);
  -webkit-mask-image: radial-gradient(ellipse 80% 70% at 50% 35%, #000 30%, transparent 80%);
  opacity: .6;
  pointer-events: none;
  z-index: 0;
}
/* Photo background layer — fills via CSS var set by Tweaks.
   Photo itself is always fully opaque; the scrim below controls visibility. */
.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image: var(--hero-bg, none);
  background-size: cover;
  background-position: center;
  opacity: 1;
  filter: saturate(0.85) contrast(1.05);
  z-index: 0;
  pointer-events: none;
  transition: opacity .35s;
}
.hero:not([data-bg])::after { opacity: 0; }
/* When a video is playing, hide the image so the video shows through */
.hero[data-bg="video"]::after { opacity: 0; }

/* PC-only background video — sits behind the scrim, in front of the image.
   Mobile: removed from DOM by render.js (renderSettings → !isDesktop). */
.hero-video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 0;
  pointer-events: none;
  filter: saturate(0.9) contrast(1.03);
}
.hero:not([data-bg]) .hero-video { display: none; }

/* When a photo or video is active, paint a scrim so text stays readable.
   Scrim strength = 1 - heroBgOpacity (slider 100% → minimum scrim). */
.hero[data-bg="photo"]::before,
.hero[data-bg="video"]::before {
  background: var(--c-bg);
  background-image: linear-gradient(
    180deg,
    color-mix(in srgb, var(--c-bg) 65%, transparent) 0%,
    color-mix(in srgb, var(--c-bg) 50%, transparent) 35%,
    color-mix(in srgb, var(--c-bg) 70%, transparent) 70%,
    var(--c-bg) 100%
  );
  mask-image: none;
  -webkit-mask-image: none;
  /* Inverse mapping: opacity 1.0 → scrim 0.10 ; opacity 0.1 → scrim 1.0 */
  opacity: clamp(0.10, calc(1 - var(--hero-bg-opacity, 0.55)), 1);
  z-index: 1;
}
.hero[data-bg="photo"] .hero-inner,
.hero[data-bg="photo"] .marquee,
.hero[data-bg="video"] .hero-inner,
.hero[data-bg="video"] .marquee { position: relative; z-index: 2; }
.hero[data-bg="photo"] .tag,
.hero[data-bg="photo"] .hero-stats,
.hero[data-bg="video"] .tag,
.hero[data-bg="video"] .hero-stats {
  background: color-mix(in srgb, var(--c-bg-2) 80%, transparent);
  backdrop-filter: blur(8px);
}
.hero[data-bg="photo"] .hero-stats,
.hero[data-bg="video"] .hero-stats { padding: 16px; border-radius: var(--r-md); }
.hero-inner { position: relative; }
.hero-meta {
  display: flex;
  align-items: center;
  gap: 18px;
  margin-bottom: 40px;
  flex-wrap: wrap;
}
.tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--f-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 6px 12px;
  border-radius: 999px;
  background: var(--c-bg-2);
  border: 1px solid var(--c-line);
  color: var(--c-ink-soft);
}
.tag .dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--c-accent);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--c-accent) 25%, transparent);
}
.hero h1 {
  font-family: var(--f-display);
  font-size: clamp(54px, 10vw, 144px);
  line-height: .92;
  letter-spacing: -0.04em;
  font-weight: 500;
  margin: 0 0 28px;
}
.hero h1 .ko {
  font-family: var(--f-sans);
  font-weight: 800;
  letter-spacing: -0.035em;
  display: inline-block;
}
.hero h1 em {
  font-style: normal;
  color: var(--c-accent);
  font-weight: 600;
}
.hero h1 .stroke {
  -webkit-text-stroke: 1.5px var(--c-ink);
  color: transparent;
}
.hero-sub {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 64px;
  margin-top: 64px;
  align-items: end;
}
@media (max-width: 880px) { .hero-sub { grid-template-columns: 1fr; gap: 36px; } }
.hero-sub p {
  font-size: 19px;
  line-height: 1.55;
  color: var(--c-ink-soft);
  max-width: 560px;
  margin: 0;
}
.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  border-top: 1px solid var(--c-line);
  padding-top: 24px;
}
.hero-stats .v {
  font-family: var(--f-display);
  font-size: 36px;
  font-weight: 500;
  letter-spacing: -0.02em;
  line-height: 1;
  white-space: nowrap;
}
.hero-stats .v.stack3 {
  font-size: clamp(22px, 2.4vw, 32px);
  letter-spacing: -0.01em;
  display: flex;
  align-items: baseline;
  gap: 6px;
}
.hero-stats .v.stack3 i {
  font-style: normal;
  color: var(--c-accent);
  font-size: 0.5em;
  vertical-align: super;
  margin: 0 -2px;
}
.hero-stats .l {
  font-family: var(--f-mono);
  font-size: 10px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--c-mute);
  margin-top: 6px;
}

/* Marquee */
.marquee {
  margin-top: 80px;
  border-top: 1px solid var(--c-line);
  border-bottom: 1px solid var(--c-line);
  overflow: hidden;
  background: var(--c-bg-2);
}
.marquee-track {
  display: flex;
  gap: 0;
  padding: 18px 0;
  white-space: nowrap;
  animation: marquee 60s linear infinite;
  font-family: var(--f-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--c-ink-soft);
}
/* Each strand provides its own internal spacing and trails with a separator,
   so concatenation across strands is visually identical to within-strand. */
.marquee-track span { display: inline-block; padding-right: 64px; }
.marquee-track i {
  font-style: normal;
  color: var(--c-accent);
  font-size: 8px;
  vertical-align: middle;
  margin: 0 28px;
}
@keyframes marquee {
  from { transform: translateX(0); }
  to   { transform: translateX(-50%); }
}

/* ── About ──────────────────────────────────── */
.about { padding: clamp(80px, 12vw, 160px) 0; }
.about-grid {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: clamp(40px, 6vw, 80px);
  align-items: start;
}
@media (max-width: 880px) { .about-grid { grid-template-columns: 1fr; } }
.about h3 {
  font-family: var(--f-display);
  font-size: clamp(28px, 3vw, 38px);
  letter-spacing: -0.02em;
  font-weight: 500;
  margin: 0 0 24px;
  line-height: 1.15;
}
.about h3 .ko { font-family: var(--f-sans); font-weight: 700; }
.about p { color: var(--c-ink-soft); font-size: 16px; margin: 0 0 18px; max-width: 56ch; }
.about p strong { color: var(--c-ink); font-weight: 600; }
.about-side {
  background: var(--c-bg-2);
  border: 1px solid var(--c-line);
  border-radius: var(--r-lg);
  padding: 32px;
}
.kv {
  display: grid;
  grid-template-columns: 110px 1fr;
  gap: 14px 18px;
  font-size: 14px;
}
.kv dt { color: var(--c-mute); font-family: var(--f-mono); font-size: 11px; letter-spacing: 0.1em; text-transform: uppercase; padding-top: 2px; }
.kv dd { margin: 0; color: var(--c-ink); }
.kv dd b { font-weight: 600; }

/* ── Tech (IT/AT/OT) ────────────────────────── */
.tech {
  padding: clamp(80px, 12vw, 160px) 0;
  background: var(--c-ink);
  color: var(--c-bg);
  --c-line: #1f2c4a;
  --c-line-soft: #131c33;
  --c-mute: #8895af;
  --c-ink-soft: #c7cfde;
}
.tech .section-head h2 { color: var(--c-bg); }
.tech .section-head .lead { color: var(--c-ink-soft); }
.tech-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
@media (max-width: 880px) { .tech-grid { grid-template-columns: 1fr; } }
.tech-card {
  background: var(--c-ink-2);
  border: 1px solid var(--c-line);
  border-radius: var(--r-lg);
  padding: 32px;
  position: relative;
  overflow: hidden;
}
.tech-card .pillar {
  font-family: var(--f-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--c-accent);
}
.tech-card h4 {
  font-family: var(--f-display);
  font-size: 28px;
  font-weight: 500;
  margin: 12px 0 8px;
  letter-spacing: -0.02em;
}
.tech-card .desc { color: var(--c-ink-soft); font-size: 14px; margin: 0 0 24px; }
.tech-card ul {
  list-style: none;
  padding: 0; margin: 0;
  display: flex; flex-direction: column;
  border-top: 1px solid var(--c-line);
}
.tech-card li {
  padding: 14px 0;
  border-bottom: 1px solid var(--c-line);
  font-size: 14px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  color: var(--c-bg);
}
.tech-card li::before {
  content: attr(data-idx);
  font-family: var(--f-mono);
  font-size: 10px;
  color: var(--c-mute);
  letter-spacing: 0.1em;
}
.tech-card li span { flex: 1; }
.tech-card li::after {
  content: "→";
  color: var(--c-mute);
  font-size: 14px;
}
.tech-card .num {
  position: absolute;
  top: 24px; right: 28px;
  font-family: var(--f-display);
  font-size: 14px;
  color: var(--c-mute);
}

/* ── Results (구축실적) ──────────────────────── */
.results { padding: clamp(80px, 12vw, 160px) 0; }
.results-tabs {
  display: flex;
  gap: 0;
  border-bottom: 1px solid var(--c-line);
  margin-bottom: 48px;
  overflow-x: auto;
  scrollbar-width: none;
}
.results-tabs::-webkit-scrollbar { display: none; }
.results-tabs button {
  background: transparent;
  border: 0;
  padding: 18px 28px;
  font-family: var(--f-display);
  font-size: 15px;
  color: var(--c-mute);
  letter-spacing: -0.01em;
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
  white-space: nowrap;
  transition: color .15s;
}
.results-tabs button:hover { color: var(--c-ink); }
.results-tabs button[aria-selected="true"] {
  color: var(--c-ink);
  border-bottom-color: var(--c-accent);
  font-weight: 600;
}
.results-tabs button .count {
  font-family: var(--f-mono);
  font-size: 11px;
  color: var(--c-mute);
  margin-left: 6px;
  vertical-align: super;
}
.results-tabs button[aria-selected="true"] .count { color: var(--c-accent); }

.programs { display: flex; flex-direction: column; gap: 8px; }
.program {
  border: 1px solid var(--c-line);
  border-radius: var(--r-lg);
  background: var(--c-bg-2);
  overflow: hidden;
}
.program summary {
  list-style: none;
  cursor: default;
  padding: 22px 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  font-size: 16px;
  font-weight: 600;
  color: var(--c-ink);
}
.program summary::-webkit-details-marker { display: none; }
.program summary::after {
  content: "+";
  font-family: var(--f-display);
  font-size: 22px;
  color: var(--c-accent);
  transition: transform .25s;
  font-weight: 300;
}
.program[open] summary::after { transform: rotate(45deg); }
.program summary .badge {
  font-family: var(--f-mono);
  font-size: 10px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  background: var(--c-accent-soft);
  color: var(--c-accent);
  padding: 4px 10px;
  border-radius: 999px;
  margin-right: auto;
  margin-left: 18px;
  font-weight: 500;
}
.program ul {
  list-style: none;
  margin: 0;
  padding: 0 28px 24px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px 32px;
  border-top: 1px solid var(--c-line-soft);
  padding-top: 20px;
}
@media (max-width: 720px) { .program ul { grid-template-columns: 1fr; } }
.program li {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 12px;
  font-size: 14px;
  padding: 6px 0;
  border-bottom: 1px dashed var(--c-line-soft);
  align-items: baseline;
}
.program li .proj { color: var(--c-ink-soft); }
.program li .co {
  font-family: var(--f-mono);
  font-size: 11px;
  color: var(--c-accent);
  letter-spacing: 0.04em;
  white-space: nowrap;
}

/* ── Portfolio ──────────────────────────────── */
.portfolio { padding: clamp(80px, 12vw, 160px) 0; background: var(--c-bg-2); border-top: 1px solid var(--c-line); border-bottom: 1px solid var(--c-line); }
.pf-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
@media (max-width: 880px) { .pf-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .pf-grid { grid-template-columns: 1fr; } }
.pf-card {
  background: var(--c-bg);
  border: 1px solid var(--c-line);
  border-radius: var(--r-lg);
  overflow: hidden;
  transition: transform .25s, box-shadow .25s;
}
.pf-card:hover { transform: translateY(-3px); box-shadow: 0 12px 32px -16px rgba(10,20,40,.18); }
.pf-thumb {
  aspect-ratio: 4/3;
  background: var(--c-line-soft);
  background-size: cover;
  background-position: center;
  border-bottom: 1px solid var(--c-line);
  position: relative;
}
.pf-thumb .idx {
  position: absolute;
  top: 14px; left: 14px;
  font-family: var(--f-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  background: var(--c-ink);
  color: var(--c-bg);
  padding: 4px 10px;
  border-radius: 999px;
}
.pf-body { padding: 22px 24px 24px; }
.pf-body .co { font-family: var(--f-mono); font-size: 11px; letter-spacing: 0.08em; color: var(--c-accent); text-transform: uppercase; }
.pf-body h4 { margin: 8px 0 6px; font-size: 18px; font-weight: 700; letter-spacing: -0.015em; }
.pf-body p { margin: 0; color: var(--c-ink-soft); font-size: 14px; }
.pf-body .meta { margin-top: 14px; padding-top: 14px; border-top: 1px dashed var(--c-line); font-family: var(--f-mono); font-size: 11px; color: var(--c-mute); display:flex; justify-content: space-between; }

/* ── Gallery ────────────────────────────────── */
.gallery { padding: clamp(80px, 12vw, 160px) 0; }
.gallery-tabs {
  display: flex;
  gap: 0;
  border-bottom: 1px solid var(--c-line);
  margin-bottom: 32px;
  overflow-x: auto;
  scrollbar-width: none;
}
.gallery-tabs::-webkit-scrollbar { display: none; }
.gallery-tabs button {
  background: transparent;
  border: 0;
  padding: 14px 22px;
  font-family: var(--f-display);
  font-size: 14px;
  color: var(--c-mute);
  letter-spacing: -0.01em;
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
  white-space: nowrap;
  transition: color .15s;
}
.gallery-tabs button:hover { color: var(--c-ink); }
.gallery-tabs button[aria-selected="true"] {
  color: var(--c-ink);
  border-bottom-color: var(--c-accent);
  font-weight: 600;
}
.gallery-tabs button .ct {
  font-family: var(--f-mono);
  font-size: 10px;
  color: var(--c-mute);
  margin-left: 6px;
  vertical-align: super;
}
.gallery-tabs button[aria-selected="true"] .ct { color: var(--c-accent); }

.gal-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
}
@media (max-width: 880px) { .gal-strip { grid-template-columns: repeat(2, 1fr); } }
.gal-strip .g {
  aspect-ratio: 4/3;
  background-size: cover;
  background-position: center;
  background-color: var(--c-line-soft);
  border-radius: var(--r-md);
  transition: transform .25s;
}
.gal-strip .g:hover { transform: scale(1.02); }
.gal-strip .g.tall { grid-row: span 2; aspect-ratio: 4/6; }

/* ── Gallery lightbox ───────────────────────── */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: none;
  align-items: center;
  justify-content: center;
  background: rgba(5, 10, 22, 0.92);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
  padding: clamp(16px, 5vw, 64px);
}
.lightbox.open { display: flex; animation: lb-fade .2s ease; }
@keyframes lb-fade { from { opacity: 0; } to { opacity: 1; } }
.lb-figure {
  margin: 0;
  max-width: 100%;
  max-height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 18px;
}
.lb-img {
  max-width: min(1100px, 90vw);
  max-height: 80vh;
  width: auto;
  height: auto;
  object-fit: contain;
  border-radius: 6px;
  box-shadow: 0 24px 80px -16px rgba(0,0,0,.7);
  animation: lb-pop .25s ease;
}
@keyframes lb-pop { from { transform: scale(.96); opacity: .4; } to { transform: scale(1); opacity: 1; } }
.lb-cap {
  color: rgba(255,255,255,.85);
  font-size: 14px;
  letter-spacing: -0.005em;
  text-align: center;
  max-width: 70ch;
}
.lb-close {
  position: fixed;
  top: 22px; right: 26px;
  width: 44px; height: 44px;
  border-radius: 50%;
  background: rgba(255,255,255,.1);
  color: #fff;
  font-size: 18px;
  border: 1px solid rgba(255,255,255,.18);
  display: grid; place-items: center;
  transition: background .15s;
  z-index: 2;
}
.lb-close:hover { background: rgba(255,255,255,.22); }
.lb-nav {
  position: fixed;
  top: 50%;
  transform: translateY(-50%);
  width: 52px; height: 52px;
  border-radius: 50%;
  background: rgba(255,255,255,.1);
  color: #fff;
  font-size: 30px;
  font-family: var(--f-display);
  border: 1px solid rgba(255,255,255,.18);
  display: grid; place-items: center;
  transition: background .15s;
  z-index: 2;
}
.lb-nav:hover { background: var(--c-accent); border-color: var(--c-accent); }
.lb-prev { left: 24px; }
.lb-next { right: 24px; }
@media (max-width: 640px) {
  .lb-nav { width: 42px; height: 42px; font-size: 24px; }
  .lb-prev { left: 10px; } .lb-next { right: 10px; }
}
.lb-count {
  position: fixed;
  bottom: 24px; left: 50%;
  transform: translateX(-50%);
  color: rgba(255,255,255,.65);
  font-family: var(--f-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  z-index: 2;
}

/* ── PR / Brochures ─────────────────────────── */
.pr { padding: clamp(80px, 12vw, 160px) 0; background: var(--c-ink); color: var(--c-bg);
  --c-mute: #8895af; --c-ink-soft: #c7cfde; --c-line: #1f2c4a; }
.pr .section-head h2 { color: var(--c-bg); }
.pr .section-head .lead { color: var(--c-ink-soft); }
.pr-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
@media (max-width: 880px) { .pr-grid { grid-template-columns: 1fr; } }
.pr-card {
  background: var(--c-ink-2);
  border: 1px solid var(--c-line);
  border-radius: var(--r-lg);
  padding: 28px;
  display: flex;
  flex-direction: column;
  gap: 18px;
}
.pr-card .doc {
  aspect-ratio: 3/4;
  background: linear-gradient(135deg, var(--c-bg-2) 0%, var(--c-line-soft) 100%);
  background-color: var(--c-bg);
  background-size: cover;
  background-position: top center;
  border-radius: var(--r-md);
  position: relative;
  overflow: hidden;
}
.pr-card .doc::after {
  content: attr(data-year);
  position: absolute;
  bottom: 14px; left: 14px;
  font-family: var(--f-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: rgba(255,255,255,.85);
  background: rgba(0,0,0,.55);
  padding: 4px 10px;
  border-radius: 999px;
  backdrop-filter: blur(8px);
}
.pr-card h4 { margin: 0; font-size: 20px; font-weight: 600; letter-spacing: -0.015em; }
.pr-card p { margin: 0; color: var(--c-ink-soft); font-size: 14px; flex: 1; }
.pr-card .actions { display: flex; gap: 10px; flex-wrap: wrap; }
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 16px;
  border: 1px solid currentColor;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 500;
  color: var(--c-bg);
  transition: background .15s, color .15s;
}
.btn:hover { background: var(--c-bg); color: var(--c-ink); }
.btn.primary { background: var(--c-accent); border-color: var(--c-accent); color: #fff; }
.btn.primary:hover { background: #c84a14; color: #fff; border-color: #c84a14; }
.btn .arr { font-family: var(--f-mono); font-size: 12px; }

/* ── Support / Contact ──────────────────────── */
.support { padding: clamp(80px, 12vw, 160px) 0; }
.support-grid {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: clamp(40px, 6vw, 80px);
}
@media (max-width: 880px) { .support-grid { grid-template-columns: 1fr; } }
.contact-card {
  background: var(--c-bg-2);
  border: 1px solid var(--c-line);
  border-radius: var(--r-lg);
  padding: 36px;
}
.contact-row { display: grid; grid-template-columns: 80px 1fr; gap: 16px; padding: 18px 0; border-bottom: 1px solid var(--c-line-soft); align-items: baseline; }
.contact-row:last-child { border-bottom: 0; }
.contact-row dt { font-family: var(--f-mono); font-size: 10px; letter-spacing: 0.12em; color: var(--c-mute); text-transform: uppercase; }
.contact-row dd { margin: 0; font-size: 17px; font-weight: 500; }
.contact-row dd .l { display: block; font-size: 13px; color: var(--c-mute); margin-top: 4px; font-family: var(--f-mono); letter-spacing: 0.04em; }

.partners h4 {
  font-family: var(--f-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--c-mute);
  margin: 0 0 24px;
}
.partner-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}
.partner {
  border: 1px solid var(--c-line);
  border-radius: var(--r-md);
  background: var(--c-bg-2);
  padding: 22px;
  display: flex;
  align-items: center;
  justify-content: center;
  aspect-ratio: 2.2/1;
}
.partner img { max-height: 32px; width: auto; opacity: .85; transition: opacity .2s; }
.partner:hover img { opacity: 1; }

/* ── Location ───────────────────────────────── */
.location {
  padding: clamp(80px, 12vw, 160px) 0;
  background: var(--c-bg-2);
  border-top: 1px solid var(--c-line);
}
.loc-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}
@media (max-width: 880px) { .loc-grid { grid-template-columns: 1fr; } }
.loc-card {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  border: 1px solid var(--c-line);
  border-radius: var(--r-lg);
  overflow: hidden;
  background: var(--c-bg);
  position: relative;
}
.loc-card.is-primary { grid-column: span 2; }
@media (max-width: 880px) { .loc-card { grid-template-columns: 1fr; } .loc-card.is-primary { grid-column: auto; } }
.loc-card.is-primary .loc-info { padding: 48px; }
.loc-info { padding: 28px; }
.loc-info .role {
  font-family: var(--f-mono);
  font-size: 10px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--c-accent);
  margin-bottom: 8px;
}
.loc-info h4 {
  font-family: var(--f-display);
  font-size: clamp(20px, 2.2vw, 26px);
  font-weight: 500;
  letter-spacing: -0.02em;
  margin: 0 0 14px;
}
.loc-card.is-primary .loc-info h4 { font-size: clamp(24px, 2.6vw, 32px); }
.loc-info .addr { font-size: 15px; line-height: 1.5; margin: 0 0 16px; color: var(--c-ink-soft); }
.loc-info .addr .zip { display: block; font-family: var(--f-mono); font-size: 11px; color: var(--c-mute); margin-top: 4px; letter-spacing: 0.04em; }
.loc-info .phone {
  display: block;
  font-family: var(--f-mono);
  font-size: 13px;
  color: var(--c-ink-soft);
  margin-bottom: 16px;
  letter-spacing: 0.04em;
}
.loc-info .phone::before {
  content: "Tel · ";
  color: var(--c-mute);
  font-weight: 500;
}
.loc-info .map-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--f-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--c-ink);
  border-bottom: 1px solid currentColor;
  padding-bottom: 2px;
  margin-top: 4px;
}
.loc-info .map-btn:hover { color: var(--c-accent); }
.loc-map {
  background-color: var(--c-line-soft);
  position: relative;
  min-height: 220px;
}
.loc-map.placeholder {
  background-image:
    linear-gradient(var(--c-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--c-line) 1px, transparent 1px);
  background-size: 32px 32px;
}
.loc-card.is-primary .loc-map { min-height: 320px; }
.loc-pin {
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  display: flex; flex-direction: column; align-items: center; gap: 10px;
}
.loc-pin .p {
  width: 16px; height: 16px;
  background: var(--c-accent);
  border-radius: 50%;
  box-shadow: 0 0 0 6px color-mix(in srgb, var(--c-accent) 25%, transparent), 0 0 0 14px color-mix(in srgb, var(--c-accent) 12%, transparent);
  animation: pulse 2.4s ease-out infinite;
}
.loc-pin .lbl {
  font-family: var(--f-mono);
  font-size: 10px;
  letter-spacing: 0.1em;
  background: var(--c-ink);
  color: var(--c-bg);
  padding: 5px 10px;
  border-radius: 999px;
  text-transform: uppercase;
}
@keyframes pulse {
  0%   { box-shadow: 0 0 0 0 color-mix(in srgb, var(--c-accent) 40%, transparent), 0 0 0 0 color-mix(in srgb, var(--c-accent) 15%, transparent); }
  100% { box-shadow: 0 0 0 16px color-mix(in srgb, var(--c-accent) 0%, transparent), 0 0 0 32px color-mix(in srgb, var(--c-accent) 0%, transparent); }
}

/* ── Footer ─────────────────────────────────── */
.foot { padding: 60px 0 32px; background: var(--c-ink); color: var(--c-bg); }
.foot-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 32px; padding-bottom: 32px; border-bottom: 1px solid #1f2c4a; }
@media (max-width: 720px) { .foot-grid { grid-template-columns: 1fr; } }
.foot h5 { font-family: var(--f-mono); font-size: 11px; letter-spacing: 0.14em; text-transform: uppercase; color: #8895af; margin: 0 0 16px; font-weight: 500; }
.foot ul { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 8px; font-size: 13px; color: #c7cfde; }
.foot .legal { display:flex; justify-content: space-between; align-items: center; padding-top: 24px; font-family: var(--f-mono); font-size: 11px; color: #6b7589; letter-spacing: 0.04em; flex-wrap: wrap; gap: 12px; }
.foot .legal b { color: var(--c-bg); font-weight: 500; }

/* ── Reveal animation ───────────────────────── */
.reveal { opacity: 0; transform: translateY(16px); transition: opacity .7s, transform .7s; }
.reveal.in { opacity: 1; transform: none; }

/* ── Demo Center ────────────────────────────── */
.demo {
  padding: clamp(80px, 12vw, 160px) 0;
  background: var(--c-bg-2);
  border-top: 1px solid var(--c-line);
  border-bottom: 1px solid var(--c-line);
}
.demo-grid {
  display: grid;
  grid-template-columns: 1fr 1.15fr;
  gap: clamp(40px, 6vw, 80px);
  align-items: start;
}
@media (max-width: 880px) { .demo-grid { grid-template-columns: 1fr; } }
.demo-intro { color: var(--c-ink-soft); font-size: 16px; line-height: 1.6; margin: 0 0 32px; max-width: 56ch; }
.demo-kv { display: grid; grid-template-columns: 100px 1fr; gap: 16px 20px; margin: 0 0 32px; font-size: 14px; }
.demo-kv dt { font-family: var(--f-mono); font-size: 10px; letter-spacing: 0.12em; text-transform: uppercase; color: var(--c-mute); padding-top: 3px; }
.demo-kv dd { margin: 0; color: var(--c-ink); }

.demo-visual { display: flex; flex-direction: column; gap: 16px; }
.demo-photos {
  display: grid;
  grid-template-columns: 2fr 1fr;
  grid-template-rows: 1fr 1fr;
  gap: 8px;
  aspect-ratio: 16/10;
  border-radius: var(--r-lg);
  overflow: hidden;
}
.demo-photos .ph {
  background-size: cover;
  background-position: center;
  background-color: var(--c-line-soft);
  position: relative;
  display: grid;
  place-items: center;
  color: var(--c-mute);
  font-family: var(--f-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  border: 1px solid var(--c-line);
  border-radius: var(--r-md);
}
.demo-photos .ph.big { grid-row: span 2; }
.demo-photos .ph.empty::before {
  content: attr(data-label);
  text-align: center;
  padding: 12px;
}
.demo-photos .ph::after {
  content: attr(data-caption);
  position: absolute;
  bottom: 8px; left: 8px;
  font-family: var(--f-mono);
  font-size: 10px;
  background: rgba(10, 20, 40, .7);
  color: #fff;
  padding: 4px 8px;
  border-radius: 4px;
  letter-spacing: 0.06em;
}
.demo-photos .ph[data-caption=""]::after,
.demo-photos .ph:not([data-caption])::after { content: none; }

.demo-highlights {
  list-style: none;
  margin: 0; padding: 0;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
}
@media (max-width: 720px) { .demo-highlights { grid-template-columns: repeat(2, 1fr); } }
.demo-highlights li {
  background: var(--c-bg);
  border: 1px solid var(--c-line);
  border-radius: var(--r-md);
  padding: 14px 16px;
}
.demo-highlights li .k {
  font-family: var(--f-mono);
  font-size: 10px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--c-accent);
  display: block;
  margin-bottom: 4px;
}
.demo-highlights li .v {
  font-size: 13px;
  color: var(--c-ink);
  font-weight: 500;
}

/* ── Notices (사업공고) ─────────────────────── */
.notices { padding: clamp(80px, 12vw, 160px) 0; background: var(--c-bg); }
.notice-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 28px;
  align-items: center;
  margin-bottom: 32px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--c-line);
}
.filter-group {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}
.filter-lbl {
  font-family: var(--f-mono);
  font-size: 10px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--c-mute);
  margin-right: 4px;
}
.chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  border: 1px solid var(--c-line);
  border-radius: 999px;
  font-size: 12px;
  background: var(--c-bg-2);
  color: var(--c-ink-soft);
  font-family: var(--f-sans);
  transition: all .12s;
}
.chip:hover { border-color: var(--c-ink); color: var(--c-ink); }
.chip[aria-pressed="true"] {
  background: var(--c-ink);
  color: var(--c-bg);
  border-color: var(--c-ink);
}
.chip .ct {
  font-family: var(--f-mono);
  font-size: 10px;
  opacity: .6;
}

.notice-list {
  display: flex;
  flex-direction: column;
  border-top: 1px solid var(--c-line);
}
.notice {
  display: grid;
  grid-template-columns: 1fr 220px 140px;
  gap: 24px;
  padding: 24px 0;
  border-bottom: 1px solid var(--c-line);
  align-items: center;
  cursor: default;
  position: relative;
}
@media (max-width: 880px) {
  .notice { grid-template-columns: 1fr; gap: 8px; padding: 20px 0; }
}
.notice .body h4 { margin: 0 0 6px; font-size: 17px; font-weight: 700; letter-spacing: -0.015em; }
.notice .body p { margin: 0; color: var(--c-ink-soft); font-size: 14px; max-width: 60ch; }
.notice .tags { display: flex; gap: 6px; flex-wrap: wrap; margin-top: 8px; }
.notice .tags span {
  font-family: var(--f-mono);
  font-size: 10px;
  letter-spacing: 0.06em;
  background: var(--c-line-soft);
  padding: 3px 8px;
  border-radius: 4px;
  color: var(--c-ink-soft);
}
.notice .meta {
  font-family: var(--f-mono);
  font-size: 11px;
  color: var(--c-mute);
  letter-spacing: 0.05em;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.notice .meta b { color: var(--c-ink); font-weight: 500; font-size: 12px; }
.notice .stat {
  justify-self: end;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  border-radius: 999px;
  font-family: var(--f-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  font-weight: 500;
}
@media (max-width: 880px) { .notice .stat { justify-self: start; } }
.notice .stat.s-open    { background: color-mix(in srgb, var(--c-accent) 12%, transparent); color: var(--c-accent); }
.notice .stat.s-close   { background: #ffeded; color: #b9351c; }
.notice .stat.s-closed  { background: var(--c-line-soft); color: var(--c-mute); }
.notice .stat .dot { width: 6px; height: 6px; border-radius: 50%; background: currentColor; }

.notice .actions {
  position: absolute;
  right: 0; top: 50%;
  transform: translateY(-50%);
  display: flex; gap: 8px;
  opacity: 0;
  transition: opacity .15s;
  pointer-events: none;
}
.notice:hover .actions { opacity: 1; pointer-events: auto; }
@media (max-width: 880px) { .notice .actions { position: static; transform: none; opacity: 1; pointer-events: auto; margin-top: 12px; } }
.notice .actions a {
  font-family: var(--f-mono); font-size: 11px; letter-spacing: 0.04em;
  padding: 6px 12px; background: var(--c-ink); color: var(--c-bg);
  border-radius: 999px;
}

.empty-state {
  padding: 60px 0;
  text-align: center;
  color: var(--c-mute);
  font-family: var(--f-mono);
  font-size: 13px;
  letter-spacing: 0.04em;
}

/* ── Tweak target — controlled by JS ────────── */
[data-density="compact"] { --gutter: clamp(16px, 3vw, 40px); }
[data-density="loose"]   { --gutter: clamp(28px, 5vw, 80px); }