/* ============================================================================
   NADIR — CITY DATABASE // 2090
   STYLE TOKENS
   ============================================================================ */
:root {
  /* --- color --- */
  --bg-void: #08090b;
  --bg-panel: #121419;
  --bg-panel-alt: #191c22;
  --bg-raised: #1e2128;
  --line: #2a2e35;
  --line-bright: #3d434d;
  --text: #d6dbe1;
  --text-dim: #838a93;
  --text-faint: #4c525b;
  --accent-helix: #49d8c8;
  --accent-helix-dim: #2b7d75;
  --accent-baekgwi: #c8433f;
  --accent-baekgwi-dim: #7a2c2a;
  --warn: #dba14a;
  --danger: #c8433f;

  /* --- type --- */
  --font-display: "Arial Narrow", "Noto Sans KR", "Segoe UI Semibold", sans-serif;
  --font-body: "Noto Sans KR", "Segoe UI", system-ui, sans-serif;
  --font-mono: "Courier New", ui-monospace, "Noto Sans KR", monospace;

  /* --- layout --- */
  --nav-h: 64px;
  --radius: 2px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg-void);
  color: var(--text);
  font-family: var(--font-body);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* subtle static base texture */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 999;
  opacity: 0.035;
  background-image: repeating-linear-gradient(0deg, #fff 0px, transparent 1px, transparent 2px);
  mix-blend-mode: overlay;
}

a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; }
:focus-visible { outline: 2px solid var(--accent-helix); outline-offset: 2px; }

.eyebrow {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--text-dim);
  text-transform: uppercase;
}

.h-title {
  font-family: var(--font-display);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  font-weight: 800;
  margin: 0;
}

/* ============================== NAV ============================== */
#nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--nav-h);
  background: rgba(8,9,11,0.92);
  backdrop-filter: blur(6px);
  border-bottom: 1px solid var(--line);
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 24px;
}
.nav-brand { display: flex; flex-direction: column; line-height: 1.1; }
.nav-brand .mark {
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 800;
  letter-spacing: 0.12em;
}
.nav-brand .sub {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.14em;
  color: var(--accent-helix);
}
.nav-links { display: flex; gap: 4px; }
.nav-link {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--text-dim);
  padding: 10px 14px;
  border-bottom: 2px solid transparent;
  transition: color .15s ease, border-color .15s ease;
}
.nav-link:hover { color: var(--text); }
.nav-link.active { color: var(--text); border-bottom-color: var(--accent-helix); }
.nav-burger {
  display: none;
  background: none; border: 1px solid var(--line-bright);
  width: 36px; height: 36px; color: var(--text);
  align-items: center; justify-content: center;
}

@media (max-width: 860px) {
  .nav-links {
    position: fixed; top: var(--nav-h); left: 0; right: 0;
    background: var(--bg-panel);
    border-bottom: 1px solid var(--line);
    flex-direction: column; gap: 0;
    transform: translateY(-8px);
    opacity: 0; pointer-events: none;
    transition: opacity .15s ease, transform .15s ease;
  }
  .nav-links.open { opacity: 1; pointer-events: auto; transform: translateY(0); }
  .nav-link { padding: 14px 20px; border-bottom: 1px solid var(--line); border-left: 2px solid transparent; }
  .nav-link.active { border-left-color: var(--accent-helix); border-bottom-color: var(--line); }
  .nav-burger { display: flex; }
}

/* ============================== PAGE TRANSITIONS ============================== */
.transition-sweep {
  position: fixed; inset: 0; z-index: 150; pointer-events: none;
  background: linear-gradient(180deg, transparent 0%, rgba(73,216,200,0.14) 45%, transparent 90%);
  transform: translateY(-100%);
  opacity: 0;
}
.transition-sweep.play { animation: sweep-down .5s ease; }
@keyframes sweep-down {
  0%   { transform: translateY(-100%); opacity: 0.9; }
  70%  { opacity: 0.5; }
  100% { transform: translateY(100%); opacity: 0; }
}

/* ============================== LAYOUT ============================== */
main { padding-top: var(--nav-h); min-height: 100vh; }
.page { display: none; }
.page.active { display: block; animation: fade-in .4s cubic-bezier(.2,.7,.2,1); }
@keyframes fade-in { from { opacity: 0; transform: translateY(10px) scale(.996); filter: blur(2px); } to { opacity: 1; transform: none; filter: none; } }

.section { max-width: 1180px; margin: 0 auto; padding: 72px 24px; }
.section-head { margin-bottom: 36px; }
.section-head .eyebrow { margin-bottom: 8px; display: block; }
.section-head h2 { font-size: clamp(26px, 4vw, 38px); }

/* ============================== HERO ============================== */
.hero {
  position: relative;
  min-height: 92vh;
  width: 100%;
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  text-align: center;
  overflow: hidden;
  background:
    radial-gradient(ellipse at 50% 15%, rgba(73,216,200,0.08), transparent 60%),
    linear-gradient(180deg, #0a0c0f 0%, #08090b 55%, #06070a 100%);
  border-bottom: 1px solid var(--line);
  border-left: none; border-right: none; border-top: none;
  padding: 0; margin: 0;
  color: inherit; font: inherit;
  cursor: pointer;
}
.hero:hover .hero-title { text-shadow: 0 0 56px rgba(73,216,200,0.28); }
.hero:hover .hero-scroll { color: var(--accent-helix); }
.hero:active { transform: scale(0.998); }
.hero-img-layer {
  position: absolute; inset: 0;
  background-size: cover; background-position: center;
  opacity: 0.5;
}
.hero-silhouette {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(180deg, transparent 0%, rgba(8,9,11,0.4) 70%, #08090b 100%),
    repeating-linear-gradient(90deg, rgba(255,255,255,0.02) 0 2px, transparent 2px 26px);
  opacity: 0.9;
}
.hero-silhouette::after {
  content: "";
  position: absolute; left: 0; right: 0; bottom: 0; height: 45%;
  background: linear-gradient(180deg, transparent, #08090b 90%);
}
.hero-content { position: relative; z-index: 2; padding: 0 20px; }
.hero-eyebrow {
  font-family: var(--font-mono); font-size: 12px; letter-spacing: 0.3em;
  color: var(--accent-helix); margin-bottom: 18px;
}
.hero-title {
  font-family: var(--font-display); font-weight: 800;
  font-size: clamp(64px, 14vw, 148px); letter-spacing: 0.05em;
  line-height: 0.9; margin: 0;
  color: #eef1f4;
  text-shadow: 0 0 40px rgba(73,216,200,0.15);
}
.hero-tag {
  font-family: var(--font-mono); font-size: 13px; letter-spacing: 0.22em;
  color: var(--text-dim); margin-top: 20px;
}
.hero-scroll {
  margin-top: 48px; font-family: var(--font-mono); font-size: 11px;
  letter-spacing: 0.15em; color: var(--text-faint);
  transition: color .2s ease;
}

/* ============================== PRIMER (intro sequence) ============================== */
.primer { border-bottom: 1px solid var(--line); background: var(--bg-panel); }
.primer-grid {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px;
  background: var(--line);
}
.primer-item { background: var(--bg-panel); padding: 26px 20px; }
.primer-item .num { font-family: var(--font-mono); font-size: 11px; color: var(--accent-helix); }
.primer-item h3 { font-size: 15px; margin: 10px 0 8px; text-transform: uppercase; letter-spacing: .04em; }
.primer-item p { font-size: 13.5px; color: var(--text-dim); margin: 0; }
@media (max-width: 860px) { .primer-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 520px) { .primer-grid { grid-template-columns: 1fr; } }

/* ============================== CITY CROSS SECTION ============================== */
.city-wrap { position: relative; }
.city-zone-label {
  text-align: center; font-family: var(--font-mono); font-size: 11px;
  letter-spacing: 0.25em; color: var(--text-faint); margin: 10px 0;
}
.city-diagram {
  max-width: 640px; margin: 0 auto;
  border: 1px solid var(--line);
  background: var(--bg-panel);
  position: relative;
}
.corp-strip {
  display: flex; align-items: center; justify-content: center; gap: 14px;
  padding: 18px 16px;
  cursor: pointer;
  border: none; width: 100%;
  background: linear-gradient(180deg, rgba(73,216,200,0.07), transparent);
  color: var(--text);
  transition: background .15s ease;
}
.corp-strip.baekgwi { background: linear-gradient(0deg, rgba(200,67,63,0.08), transparent); }
.corp-strip:hover { background: rgba(255,255,255,0.04); }
.corp-strip .corp-name { font-family: var(--font-display); font-weight: 800; letter-spacing: .08em; font-size: 15px; }
.corp-strip.helix .corp-name { color: var(--accent-helix); }
.corp-strip.baekgwi .corp-name { color: var(--accent-baekgwi); }

.floor-list { display: flex; flex-direction: column; }
.floor-row {
  border: none; width: 100%;
  display: grid; grid-template-columns: 64px 1fr;
  border-top: 1px solid var(--line);
  background: var(--bg-panel-alt);
  color: var(--text);
  text-align: left;
  position: relative;
  overflow: hidden;
}
.floor-row:hover, .floor-row.active { background: var(--bg-raised); }
.floor-row .floor-code {
  font-family: var(--font-mono); font-size: 12px; color: var(--text-dim);
  display: flex; align-items: center; justify-content: center;
  border-right: 1px solid var(--line);
}
.floor-row .floor-body { padding: 14px 16px; }
.floor-row .floor-name { font-size: 14px; font-weight: 600; letter-spacing: .02em; }
.floor-row .floor-sub { font-family: var(--font-mono); font-size: 10.5px; color: var(--text-faint); margin-top: 2px; }
/* density bar: gets busier / redder toward lower floors */
.floor-row .density {
  position: absolute; right: 0; top: 0; bottom: 0; width: 4px;
  background: var(--accent-helix-dim);
}
.floor-row[data-danger="2"] .density { background: #7a7340; }
.floor-row[data-danger="3"] .density { background: #9c5a35; }
.floor-row[data-danger="4"] .density { background: #a83c37; }
.floor-row[data-danger="5"] .density { background: var(--accent-baekgwi); }

/* info panel that opens below diagram */
.info-panel {
  max-width: 640px; margin: 14px auto 0;
  border: 1px solid var(--line-bright);
  background: var(--bg-panel);
  display: none;
  animation: fade-in .25s ease;
}
.info-panel.open { display: block; }
.info-panel-head {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 18px; border-bottom: 1px solid var(--line);
}
.info-panel-head h3 { margin: 0; font-family: var(--font-display); letter-spacing: .05em; font-size: 18px; }
.info-panel-close { background: none; border: 1px solid var(--line-bright); color: var(--text-dim); width: 28px; height: 28px; }
.info-panel-body { padding: 18px; font-size: 14px; }
.info-panel-body dt {
  font-family: var(--font-mono); font-size: 10.5px; letter-spacing: .12em;
  color: var(--text-faint); margin-top: 14px;
}
.info-panel-body dt:first-child { margin-top: 0; }
.info-panel-body dd { margin: 4px 0 0; color: var(--text); }

/* ============================== NADIR PAGE HERO (HELIX/BAEKGWI split) ============================== */
.nadir-hero {
  position: relative;
  min-height: 90vh;
  display: flex; flex-direction: column;
  overflow: hidden;
  border-bottom: 1px solid var(--line);
  background: linear-gradient(180deg, #0a0c0f 0%, #08090b 100%);
}
.nadir-hero-bg {
  position: absolute; inset: 0;
  background-size: cover; background-position: center;
  opacity: 0.5; z-index: 0;
}
.nadir-hero-silhouette {
  position: absolute; inset: 0; z-index: 1;
  background-image: repeating-linear-gradient(90deg, rgba(255,255,255,0.02) 0 2px, transparent 2px 30px);
}
.nadir-hero-silhouette::before {
  /* upper half: sparse, clean grid = HELIX */
  content: ""; position: absolute; left: 0; right: 0; top: 0; height: 50%;
  background-image: repeating-linear-gradient(0deg, rgba(73,216,200,0.05) 0 1px, transparent 1px 48px);
}
.nadir-hero-silhouette::after {
  /* lower half: dense, grittier = BAEKGWI */
  content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 50%;
  background-image: repeating-linear-gradient(0deg, rgba(200,67,63,0.06) 0 1px, transparent 1px 20px);
}

.nadir-zone-btn {
  position: relative; z-index: 2;
  flex: 1; min-height: 0;
  border: none; background: transparent; color: var(--text);
  display: block;
  padding: 24px; text-align: left;
  overflow: hidden;
  transition: background .25s ease;
}
.nadir-zone-btn.helix { background: linear-gradient(180deg, rgba(73,216,200,0.05), transparent); }
.nadir-zone-btn.baekgwi { background: linear-gradient(0deg, rgba(200,67,63,0.07), transparent); }
.nadir-zone-btn:hover { background-color: rgba(255,255,255,0.03); }
.nadir-zone-btn.dimmed { opacity: 0.35; }

.nadir-hero-divider { height: 1px; background: var(--line-bright); position: relative; z-index: 3; }

/* large translucent logo watermark, centered over the map */
.zone-logo-big {
  position: absolute; top: 50%; left: 50%;
  width: min(490px, 42vw); height: min(490px, 42vw);
  --tx: -50%; --ty: -50%; --s: 1; --lift: 0px;
  transform: translate(var(--tx), calc(var(--ty) + var(--lift))) scale(var(--s));
  opacity: 0.16;
  z-index: 1;
  pointer-events: none;
  filter: drop-shadow(0 0 0 rgba(0,0,0,0));
  transition: transform .45s cubic-bezier(.22,.75,.2,1), opacity .35s ease, filter .4s ease;
}
.nadir-zone-btn:hover .zone-logo-big {
  opacity: 0.6;
  --lift: -12px;
  filter: drop-shadow(0 18px 26px rgba(0,0,0,.55));
}
.nadir-zone-btn.helix:hover .zone-logo-big {
  filter: drop-shadow(0 18px 26px rgba(0,0,0,.55)) drop-shadow(0 0 28px rgba(73,216,200,.4));
}
.nadir-zone-btn.baekgwi:hover .zone-logo-big {
  filter: drop-shadow(0 18px 26px rgba(0,0,0,.55)) drop-shadow(0 0 28px rgba(200,67,63,.4));
}
.nadir-zone-btn.active-zone .zone-logo-big { --tx: calc(-50% - 27vw); opacity: 0.5; }
.nadir-zone-btn.dimmed .zone-logo-big { opacity: 0.07; }

/* label sits centered on top of the watermark logo */
.zone-content {
  position: absolute; top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  z-index: 2;
  display: flex; flex-direction: column; align-items: center; text-align: center;
  transition: transform .5s cubic-bezier(.22,.75,.2,1);
  pointer-events: none;
}
.nadir-zone-btn.active-zone .zone-content { transform: translate(calc(-50% - 27vw), -50%); }
.zone-label {
  font-family: var(--font-display); font-weight: 800; letter-spacing: .07em;
  font-size: clamp(28px, 4vw, 44px);
  text-shadow: 0 2px 18px rgba(0,0,0,.7);
}
.nadir-zone-btn.helix .zone-label { color: var(--accent-helix); }
.nadir-zone-btn.baekgwi .zone-label { color: var(--accent-baekgwi); }
.zone-sub {
  display: block; font-family: var(--font-mono); font-size: 11px; letter-spacing: .14em;
  color: var(--text-dim); font-weight: 400; margin-top: 8px;
}

.nadir-letterbox {
  position: absolute; top: 0; right: 0; bottom: 0; width: 44%;
  z-index: 4;
  background: rgba(9,10,13,0.94); backdrop-filter: blur(5px);
  border-left: 1px solid var(--line-bright);
  transform: translateX(100%);
  transition: transform .5s cubic-bezier(.22,.75,.2,1);
  display: flex; flex-direction: column;
  padding: 40px 34px;
}
.nadir-hero.selected .nadir-letterbox { transform: translateX(0); }
.letterbox-content .eyebrow { display: block; margin-bottom: 10px; }
.letterbox-content h3 {
  font-family: var(--font-display); font-size: 26px; letter-spacing: .04em; margin: 0 0 14px;
}
.letterbox-content p { font-size: 14px; color: var(--text-dim); margin: 0; max-width: 42ch; }
.nadir-letterbox .info-panel-close { align-self: flex-end; margin-bottom: 18px; }

@media (max-width: 760px) {
  .nadir-hero { min-height: auto; }
  .nadir-zone-btn { padding: 36px 20px; min-height: 220px; }
  .zone-logo-big, .nadir-zone-btn.active-zone .zone-logo-big { --tx: -50%; width: min(220px, 60vw); height: min(220px, 60vw); }
  .zone-content, .nadir-zone-btn.active-zone .zone-content { transform: translate(-50%, -50%); }
  .nadir-letterbox {
    position: static; width: 100%; transform: none; max-height: 0; overflow: hidden;
    padding: 0 20px; border-left: none; border-top: 1px solid var(--line-bright);
    transition: max-height .4s ease, padding .4s ease;
  }
  .nadir-hero.selected .nadir-letterbox { max-height: 400px; padding: 24px 20px; }
}

/* ============================== CITY PAGE — VERTICAL TOWER ============================== */
/* [STYLE] CITY 페이지 전체 색상/크기는 이 블록에서 조정 */
.city-tower-wrap {
  position: relative;
  max-width: 1080px;
  margin: 0 auto;
  min-height: 200px;
}
.city-tower {
  max-width: 580px;
  margin: 0 auto;
  position: relative;
  padding: 4px 0 8px;
}
.city-tower-line {
  position: absolute;
  left: 50%; top: 0; bottom: 0; width: 1px;
  background: var(--line-bright);
  transform: translateX(-50%);
  z-index: 0;
}
.city-floor-group {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 10px 0;
}
.city-floor-tag {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: .22em;
  color: var(--text-faint);
  background: var(--bg-void);
  padding: 2px 10px;
  margin-bottom: 8px;
}
.city-zone-row {
  display: flex;
  gap: 8px;
  width: 100%;
  justify-content: center;
  flex-wrap: wrap;
}
/* [ANIMATION] 마우스 오버 시 강조/디밍 애니메이션 */
.city-zone-btn {
  flex: 1 1 220px;
  max-width: 320px;
  border: 1px solid var(--line);
  background: var(--bg-panel-alt);
  padding: 13px 18px;
  text-align: left;
  color: var(--text);
  position: relative;
  transition: background .3s cubic-bezier(.2,.7,.2,1), border-color .3s ease, opacity .3s ease, transform .3s cubic-bezier(.2,.7,.2,1);
}
.city-zone-btn .zn-code {
  display: block;
  font-family: var(--font-mono); font-size: 10px; letter-spacing: .12em; color: var(--text-faint);
}
.city-zone-btn .zn-name {
  display: block;
  font-family: var(--font-display); font-weight: 700; font-size: 15px; letter-spacing: .02em;
  margin-top: 3px;
}
.city-zone-btn .zn-short {
  display: block;
  font-family: var(--font-mono); font-size: 11px; color: var(--text-dim); margin-top: 4px;
}
.city-zone-btn:hover,
.city-zone-btn.active {
  background: var(--bg-raised);
  border-color: var(--accent-helix);
  transform: translateX(6px);
}
.city-zone-btn.active .zn-name { color: var(--accent-helix); }
.city-zone-btn.dim { opacity: .3; }

.city-boundary {
  width: 100%;
  text-align: center;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: .3em;
  color: var(--accent-baekgwi);
  margin: 4px 0 10px;
  position: relative;
  z-index: 1;
  background: var(--bg-void);
  padding: 4px 0;
  border-top: 1px dashed var(--accent-baekgwi-dim);
  border-bottom: 1px dashed var(--accent-baekgwi-dim);
}

/* 왼쪽에서 슬라이드되어 나오는 상세 정보 패널 */
.city-info-panel {
  position: fixed;
  top: 120px;
  width: min(360px, 88vw);
  height: fit-content;
  max-height: calc(100vh - 160px);

  background: rgba(9,10,13,0.97);
  backdrop-filter: blur(5px);
  border-right: 1px solid var(--line-bright);

  transform: translateX(-100%);
  opacity: 0;
  transition: transform .4s cubic-bezier(.22,.75,.2,1), opacity .3s ease;

  padding: 28px 24px;
  overflow-y: auto;
  z-index: 5;
  pointer-events: none;
}
.city-info-panel.open { transform: translateX(0); opacity: 1; pointer-events: auto; }
.city-info-panel .cip-img {
  width: 100%; aspect-ratio: 16 / 9;
  background: var(--bg-panel-alt);
  background-size: cover; background-position: center;
  border: 1px solid var(--line);
  margin-bottom: 16px;
  display: flex; align-items: center; justify-content: center;
}
.city-info-panel .cip-img.empty::after {
  content: "NO IMAGE";
  font-family: var(--font-mono); font-size: 10px; letter-spacing: .14em; color: var(--text-faint);
}
.city-info-panel .cip-code {
  font-family: var(--font-mono); font-size: 11px; letter-spacing: .14em; color: var(--accent-helix);
}
.city-info-panel h3 {
  font-family: var(--font-display); font-size: 22px; letter-spacing: .03em; margin: 8px 0 4px;
}
.city-info-panel .cip-short {
  font-family: var(--font-mono); font-size: 11.5px; color: var(--text-dim); margin-bottom: 14px;
}
.city-info-panel .cip-desc {
  font-size: 13.5px; color: var(--text); line-height: 1.75;
}

/* 모바일: 화면 아무데나 탭하면 닫히는 반투명 배경 (CITY 정보패널 뒤) */
.city-info-backdrop {
  display: none;
}

@media (max-width: 760px) {
  /* 모바일: hover 불가 → 탭하면 화면 중앙에 고정 오버레이로 항상 보이게 표시,
     한 번 더 탭(패널 밖 아무 곳)하면 닫힌다 */
  .city-info-backdrop {
    display: block;
    position: fixed;
    inset: 0;
    background: rgba(4,5,6,0.65);
    z-index: 140;
    opacity: 0;
    pointer-events: none;
    transition: opacity .25s ease;
  }
  .city-info-backdrop.open { opacity: 1; pointer-events: auto; }

  .city-info-panel {
    position: fixed;
    top: 50%; left: 50%;
    width: min(340px, 88vw);
    max-height: 78vh;
    transform: translate(-50%, -50%) scale(0.96);
    opacity: 0;
    pointer-events: none;
    border: 1px solid var(--line-bright);
    border-radius: 3px;
    box-shadow: 0 24px 60px rgba(0,0,0,0.55);
    padding: 22px 20px;
    transition: transform .3s cubic-bezier(.22,.75,.2,1), opacity .25s ease;
    z-index: 141;
  }
  .city-info-panel.open {
    transform: translate(-50%, -50%) scale(1);
    opacity: 1;
    pointer-events: auto;
  }
  .city-zone-btn:hover { transform: none; }
  .city-zone-btn { flex: 1 1 100%; max-width: 100%; }
}

/* ============================== CARDS / GRID ============================== */
.card-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 14px; }
.data-card {
  background: var(--bg-panel);
  border: 1px solid var(--line);
  padding: 20px;
  transition: border-color .15s ease, transform .15s ease;
}
.data-card:hover { border-color: var(--line-bright); transform: translateY(-2px); }
.data-card .eyebrow { margin-bottom: 6px; }
.data-card h3 { margin: 0 0 10px; font-family: var(--font-display); letter-spacing: .03em; font-size: 18px; }
.data-card p { font-size: 13.5px; color: var(--text-dim); margin: 0; }
.data-card .more { margin-top: 12px; font-family: var(--font-mono); font-size: 11px; color: var(--accent-helix); }
.data-card.expandable { cursor: pointer; }
.data-card .body-full { display: none; margin-top: 12px; font-size: 13.5px; color: var(--text); border-top: 1px dashed var(--line); padding-top: 12px; }
.data-card.expanded .body-full { display: block; }

/* ============================== CORPORATIONS PAGE ============================== */
.megacorp-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
@media (max-width: 780px) { .megacorp-grid { grid-template-columns: 1fr; } }
.megacorp-card {
  border: 1px solid var(--line);
  background: var(--bg-panel);
  padding: 28px;
}
.megacorp-card.helix { border-top: 3px solid var(--accent-helix); }
.megacorp-card.baekgwi { border-top: 3px solid var(--accent-baekgwi); }
.megacorp-logo { width: 64px; height: 64px; margin-bottom: 14px; }
.megacorp-card h3 { font-family: var(--font-display); font-size: 24px; letter-spacing: .04em; margin: 0; }
.megacorp-card .tagline { font-family: var(--font-mono); font-size: 11px; letter-spacing: .12em; color: var(--text-dim); margin: 6px 0 18px; }
.megacorp-card dt { font-family: var(--font-mono); font-size: 10.5px; letter-spacing: .1em; color: var(--text-faint); margin-top: 14px; }
.megacorp-card dt:first-of-type { margin-top: 0; }
.megacorp-card dd { margin: 4px 0 0; font-size: 13.5px; color: var(--text); }
.megacorp-card .tag-row { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 4px; }
.pill {
  font-family: var(--font-mono); font-size: 10.5px; letter-spacing: .04em;
  border: 1px solid var(--line-bright); padding: 3px 8px; color: var(--text-dim);
}

.minor-corp-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 12px; margin-top: 18px; }
.minor-corp-card { border: 1px solid var(--line); background: var(--bg-panel-alt); padding: 14px 16px; }
.minor-corp-card .name { font-weight: 700; font-size: 13.5px; }
.minor-corp-card .meta { font-family: var(--font-mono); font-size: 10.5px; color: var(--text-dim); margin-top: 4px; }
.minor-corp-card .trait { font-size: 12px; color: var(--text-dim); margin-top: 6px; }

/* ============================== CHARACTERS PAGE ============================== */
.filter-row { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 26px; }
.filter-chip {
  font-family: var(--font-mono); font-size: 11px; letter-spacing: .08em;
  background: var(--bg-panel); border: 1px solid var(--line-bright); color: var(--text-dim);
  padding: 7px 12px;
}
.filter-chip.active { color: var(--bg-void); background: var(--accent-helix); border-color: var(--accent-helix); }

.char-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 16px; }
.char-card { background: var(--bg-panel); border: 1px solid var(--line); overflow: hidden; text-align: left; width: 100%; }
.char-card:hover { border-color: var(--line-bright); }
.char-photo {
  aspect-ratio: 2 / 3; width: 100%;
  background:
    repeating-linear-gradient(135deg, #14171c 0 8px, #191c22 8px 16px);
  background-size: cover; background-position: center;
  position: relative;
  display: flex; align-items: flex-end;
}
.char-photo .no-image-tag {
  font-family: var(--font-mono); font-size: 10px; letter-spacing: .12em; color: var(--text-faint);
  padding: 10px; width: 100%; text-align: center; background: rgba(0,0,0,0.35);
}
.char-body { padding: 12px 14px; }
.char-body .name { font-weight: 700; font-size: 14px; color: var(--text);}
.char-body .alias { font-family: var(--font-mono); font-size: 10.5px; color: var(--accent-helix); }
.char-body .job { font-size: 12px; color: var(--text-dim); margin-top: 6px; }

@media (max-width: 760px) {
  /* 모바일: 카드가 세로로 한 줄씩 길게 나오는 대신 3열로 압축 표시 */
  .char-grid { grid-template-columns: repeat(3, 1fr); gap: 8px; }
  .char-body { padding: 8px 8px 10px; }
  .char-body .name { font-size: 11px; line-height: 1.3; }
  .char-body .alias { font-size: 9px; }
  .char-body .job { font-size: 9.5px; margin-top: 4px; line-height: 1.3; }
  .char-photo .no-image-tag { font-size: 8px; padding: 6px; letter-spacing: .06em; }
}

/* modal */
.modal-overlay {
  position: fixed; inset: 0; background: rgba(4,5,6,0.82);
  display: none; align-items: center; justify-content: center; z-index: 200; padding: 20px;
}
.modal-overlay.open { display: flex; }
.modal {
  max-width: 640px; width: 100%; max-height: 86vh; overflow-y: auto;
  background: var(--bg-panel); border: 1px solid var(--line-bright);
}
.modal-head { display: flex; justify-content: space-between; align-items: flex-start; padding: 20px; border-bottom: 1px solid var(--line); }
.modal-head h3 { margin: 0; font-family: var(--font-display); font-size: 22px; letter-spacing: .03em; }
.modal-head .alias { font-family: var(--font-mono); font-size: 11px; color: var(--accent-helix); }
.modal-close { background: none; border: 1px solid var(--line-bright); color: var(--text-dim); width: 30px; height: 30px; flex-shrink: 0; }
.modal-body { padding: 20px; }
.modal-body dt { font-family: var(--font-mono); font-size: 10.5px; letter-spacing: .1em; color: var(--text-faint); margin-top: 16px; }
.modal-body dt:first-child { margin-top: 0; }
.modal-body dd { margin: 4px 0 0; font-size: 13.5px; }
.classified {
  margin-top: 16px; padding: 10px 12px; border: 1px dashed var(--accent-baekgwi);
  color: var(--accent-baekgwi); font-family: var(--font-mono); font-size: 11px; letter-spacing: .06em;
}

/* ============================== GLOSSARY ============================== */
.glossary-list dt { font-family: var(--font-display); letter-spacing: .04em; font-size: 15px; color: var(--accent-helix); margin-top: 18px; }
.glossary-list dt:first-child { margin-top: 0; }
.glossary-list dd { margin: 4px 0 0; font-size: 13.5px; color: var(--text-dim); }

/* ============================== FOOTER ============================== */
footer {
  border-top: 1px solid var(--line); padding: 30px 24px; text-align: center;
  font-family: var(--font-mono); font-size: 11px; color: var(--text-faint); letter-spacing: .06em;
}

/* scanline flourish for hero + diagram */
.scanline { position: absolute; left: 0; right: 0; height: 1px; background: rgba(73,216,200,0.5); opacity: 0; pointer-events: none; }

@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; }
}

#nadirLetterboxContent p {
  white-space: pre-line;
}