:root {
  /* Connect & Culture 인디고+퍼플 듀오톤(2026-08-11 리브랜딩) — mobile/app AppColors.brand/brandDark와 동일 값.
     이번 디자인은 절제된 흑백 에디토리얼 톤을 기본으로 하고, 이 색은 포인트(링크·버튼·호버)에만 쓴다. */
  --brand: #6a8cff;
  --brand-dark: #3c3489;
  --brand-soft: #eeedfe;
  --black: #050505;
  --near-black: #0d0d10;
  --fg: #f5f5f7;
  --fg-dim: #050505;
  --muted: #9a9aa2;
  --border: #232327;
  --border-light: #e5e7eb;
  --card-bg: #111114;
  --max-width: 1080px;
}

/* SUIT — 앱 전체 UI에서 쓰는 바로 그 서체(mobile/app, OFL 라이선스). 홈페이지도 같은 서체를 써서
   앱과 이어지는 타이포 경험을 준다. */
@font-face {
  font-family: "SUIT";
  src: url("/assets/fonts/SUIT-Regular.ttf") format("truetype");
  font-weight: 400;
  font-display: swap;
}
@font-face {
  font-family: "SUIT";
  src: url("/assets/fonts/SUIT-Medium.ttf") format("truetype");
  font-weight: 500;
  font-display: swap;
}
@font-face {
  font-family: "SUIT";
  src: url("/assets/fonts/SUIT-SemiBold.ttf") format("truetype");
  font-weight: 600;
  font-display: swap;
}
@font-face {
  font-family: "SUIT";
  src: url("/assets/fonts/SUIT-Bold.ttf") format("truetype");
  font-weight: 700;
  font-display: swap;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--black);
  color: var(--fg);
  font-family: "SUIT", -apple-system, BlinkMacSystemFont, "Segoe UI", "Malgun Gothic", sans-serif;
  line-height: 1.7;
  word-break: keep-all;
}

h1, h2, h3, .brand, .btn-secondary, .news-tag { font-weight: 700; }

/* 키보드 포커스 — hover와 별개로 다크 배경에서도 눈에 띄는 브랜드 톤 아웃라인을 준다 */
a:focus-visible, button:focus-visible, summary:focus-visible {
  outline: 2px solid var(--brand);
  outline-offset: 3px;
  border-radius: 4px;
}

.band-inner, .header-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

.header-inner {
  max-width: 900px;
}

/* ---- reveal-on-scroll ---- */
.reveal {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
}

/* ---- header ---- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(5, 5, 5, 0.7);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.25s ease, background 0.25s ease;
}

.site-header.is-scrolled {
  border-color: var(--border);
  background: rgba(5, 5, 5, 0.92);
}

.header-inner {
  padding: 14px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

a.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-weight: 700;
  font-size: 1.2rem;
  color: var(--fg);
  text-decoration: none;
  letter-spacing: 0.01em;
}

a.brand .brand-logo {
  width: 56px;
  height: 56px;
  object-fit: contain;
}

nav.main-nav { display: flex; gap: 34px; }

nav.main-nav a {
  color: var(--muted);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  transition: color 0.2s ease;
}

nav.main-nav a:hover, nav.main-nav a:focus-visible { color: var(--fg); }

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 36px;
  height: 36px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
}

.nav-toggle-bar {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--fg);
  border-radius: 2px;
  transition: transform 0.25s ease, opacity 0.2s ease;
}

.nav-toggle.is-open .nav-toggle-bar:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.is-open .nav-toggle-bar:nth-child(2) { opacity: 0; }
.nav-toggle.is-open .nav-toggle-bar:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

@media (max-width: 720px) {
  nav.main-nav {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: rgba(5, 5, 5, 0.97);
    border-bottom: 1px solid var(--border);
    padding: 8px 24px 20px;
    max-height: 0;
    overflow: hidden;
    opacity: 0;
    transition: max-height 0.3s ease, opacity 0.2s ease;
  }

  nav.main-nav.is-open {
    max-height: 320px;
    opacity: 1;
  }

  nav.main-nav a {
    width: 100%;
    padding: 12px 0;
    border-bottom: 1px solid var(--border);
    font-size: 0.85rem;
  }

  .nav-toggle { display: flex; }
}

/* ---- hero ---- */
.hero {
  position: relative;
  min-height: clamp(560px, 92vh, 820px);
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  overflow: hidden;
  padding: 40px 24px;
}

/* mobile/app의 웰컴 화면 배경(assets/icon/welcome_dawn_background.png)을 그대로 가져왔다 — 실루엣 두
   사람 + 도시 야경, 앱과 같은 첫인상을 준다. 사진을 별도 레이어로 분리해 천천히 확대되는 켄 번즈
   효과를 준다(그라디언트까지 같이 스케일되면 가장자리가 비므로 분리가 필요하다). 인물·불빛이 보이는
   사진 아래쪽이 화면에 실제로 걸리도록 position을 낮게 잡았다(과거 30%는 하늘만 보여 밋밋했다).*/
.hero-photo {
  position: absolute;
  inset: -4%;
  background-image: url("/assets/hero-bg.jpg");
  background-size: cover;
  background-position: center 78%;
  animation: hero-ken-burns 24s ease-in-out infinite alternate;
}

.hero-photo::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image: linear-gradient(180deg, rgba(5, 5, 5, 0.55) 0%, rgba(5, 5, 5, 0.25) 45%, rgba(5, 5, 5, 0.82) 100%);
}

@keyframes hero-ken-burns {
  from { transform: scale(1); }
  to { transform: scale(1.1); }
}

.hero-stars { position: absolute; inset: 0; pointer-events: none; }

.hero-stars span {
  position: absolute;
  width: 2px;
  height: 2px;
  border-radius: 50%;
  background: #fff;
  animation: hero-twinkle 3.2s ease-in-out infinite;
}

@keyframes hero-twinkle {
  0%, 100% { opacity: 0.15; }
  50% { opacity: 0.95; }
}

@media (prefers-reduced-motion: reduce) {
  .hero-photo { animation: none; }
  .hero-stars span { animation: none; opacity: 0.5; }
}

.hero-inner { position: relative; z-index: 1; max-width: 680px; }

.hero h1 {
  font-size: 3rem;
  line-height: 1.28;
  margin: 0 0 24px;
  font-weight: 700;
  letter-spacing: -0.01em;
}

@media (max-width: 640px) {
  .hero h1 { font-size: 2.1rem; }
}

.hero-sub {
  color: var(--muted);
  font-size: 1.05rem;
  max-width: 480px;
  margin: 0 auto 32px;
}


/* ---- full-bleed statement sections ---- */
.statement {
  min-height: clamp(380px, 58vh, 520px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 72px 24px;
  background-color: var(--black);
  border-top: 1px solid var(--border);
}

/* 두 번째 실사 이미지 순간(2026-09-11) — 히어로와 같은 웰컴 화면 배경을 다른 크롭(스카이라인 위주,
   가로형)으로 재사용해 텍스트만 이어지던 중간에 강한 시각적 쉼표를 준다. */
.photo-band {
  position: relative;
  min-height: clamp(300px, 44vh, 440px);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  border-top: 1px solid var(--border);
  /* pb-scene의 preserveAspectRatio="meet"이 만드는 레터박스 여백을 씬 하늘색과 매끄럽게 잇는다 */
  background: linear-gradient(180deg, #0b1130 0%, #221a4d 55%, #3c2a5e 100%);
}

.pb-scene {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.pb-stars circle {
  fill: #fff;
  animation: hero-twinkle 3.4s ease-in-out infinite;
}

.pb-stars circle:nth-child(odd) { animation-delay: 0.4s; }
.pb-stars circle:nth-child(3n) { animation-delay: 1.1s; }
.pb-stars circle:nth-child(4n) { animation-delay: 1.8s; }

.pb-beam-glow {
  fill: none;
  stroke: url(#pbBeam);
  stroke-width: 7;
  opacity: 0.5;
}

.pb-beam {
  fill: none;
  stroke: url(#pbBeam);
  stroke-width: 2;
  stroke-dasharray: 3 7;
}

.pb-beam-particle { fill: #fff; filter: drop-shadow(0 0 6px #fff); }

.pb-pin-kr { fill: #a7b8ff; stroke: #fff; stroke-width: 2; }
.pb-pin-ph { fill: #ff9ecf; stroke: #fff; stroke-width: 2; }

.pb-skyline-kr rect, .pb-skyline-ph rect { fill: #0d0d18; }
.pb-window { fill: #ffd48a; opacity: 0.85; }

@media (prefers-reduced-motion: reduce) {
  .pb-stars circle { animation: none; opacity: 0.6; }
  .pb-beam-particle animateMotion { display: none; }
}

.photo-band-overlay { position: relative; z-index: 1; padding: 0 24px; }

.photo-band-quote {
  color: #fff;
  font-size: 2rem;
  font-weight: 700;
  line-height: 1.4;
  text-align: center;
  letter-spacing: -0.01em;
  text-shadow: 0 2px 16px rgba(0, 0, 0, 0.5);
}

@media (max-width: 640px) {
  .photo-band { min-height: 240px; }
  .photo-band-quote { font-size: 1.5rem; }
}

.statement-alt { background-color: var(--near-black); }

.statement-inner {
  max-width: 900px;
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 64px;
  text-align: left;
}

.statement-alt .statement-inner { flex-direction: row-reverse; }

@media (max-width: 760px) {
  .statement-inner { flex-direction: column !important; text-align: center; gap: 32px; }
  /* 데스크탑의 좌우 교대 리듬을 모바일에서도 살린다 — alt 섹션은 아이콘이 본문 뒤로 온다 */
  .statement-alt .statement-inner { flex-direction: column-reverse !important; }
}

.statement-visual { flex-shrink: 0; position: relative; }

.statement-visual::before {
  content: "";
  position: absolute;
  inset: -30px;
  background: radial-gradient(circle, rgba(106, 140, 255, 0.12) 0%, rgba(106, 140, 255, 0) 70%);
  z-index: 0;
}

.statement-visual svg {
  position: relative;
  z-index: 1;
  width: 200px;
  height: 200px;
  display: block;
  transition: transform 0.3s ease;
}

.statement-visual:hover svg { transform: scale(1.05); }

@media (max-width: 760px) {
  .statement-visual svg { width: 160px; height: 160px; }
}

.statement-text { max-width: 420px; }

.statement-index {
  font-size: 0.76rem;
  letter-spacing: 0.16em;
  font-weight: 700;
  color: var(--brand);
  margin: 0 0 20px;
}

.statement h2 {
  font-size: 2.4rem;
  line-height: 1.32;
  margin: 0 0 20px;
  font-weight: 700;
  letter-spacing: -0.01em;
}

@media (max-width: 640px) {
  .statement h2 { font-size: 1.8rem; }
}

.statement-body {
  color: var(--muted);
  font-size: 1rem;
  margin: 0;
}

.statement-body a { color: var(--brand); }

/* ---- statement illustrations (SVG part classes, shared across the 4 sections) ---- */
.sv-frame { fill: none; stroke: var(--border); stroke-width: 1.5; }
.sv-fill-soft { fill: rgba(106, 140, 255, 0.12); }
.sv-stroke { fill: none; stroke: var(--fg); stroke-width: 1.5; }
.sv-line { stroke: var(--fg); stroke-width: 2; stroke-linecap: round; }
.sv-line-muted { stroke: var(--muted); stroke-width: 2; stroke-linecap: round; }
.sv-fill-brand { fill: var(--brand); }
.sv-fill-brand-solid { fill: var(--brand); }
.sv-check { fill: none; stroke: #fff; stroke-width: 4; stroke-linecap: round; stroke-linejoin: round; }
.sv-check-lg { fill: none; stroke: var(--brand); stroke-width: 5; stroke-linecap: round; stroke-linejoin: round; }
.sv-bubble-muted { fill: var(--card-bg); stroke: var(--border); stroke-width: 1.5; }
.sv-bubble-brand { fill: var(--brand); }
.sv-line-on-muted { stroke: var(--muted); stroke-width: 3; stroke-linecap: round; }
.sv-line-on-brand { stroke: rgba(255, 255, 255, 0.85); stroke-width: 3; stroke-linecap: round; }
.sv-stroke-thin { fill: none; stroke: var(--brand); stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; }
.sv-shield { fill: rgba(106, 140, 255, 0.1); stroke: var(--brand); stroke-width: 2; stroke-linejoin: round; }
.sv-badge-text { fill: #fff; font-size: 15px; font-weight: 800; font-family: "SUIT", sans-serif; }

/* ---- how it works (flow) ---- */
.flow {
  background-color: var(--near-black);
  padding: 72px 0;
  border-top: 1px solid var(--border);
}

.flow h2 { text-align: center; font-size: 1.7rem; margin: 0 0 12px; }

.flow-steps {
  list-style: none;
  margin: 36px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

@media (max-width: 720px) {
  .flow-steps { grid-template-columns: 1fr; }
}

.flow-step {
  position: relative;
  border-top: 2px solid var(--border);
  padding-top: 16px;
}

.flow-step::before {
  content: "";
  position: absolute;
  top: -6px;
  left: 0;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--brand);
  box-shadow: 0 0 0 4px var(--near-black), 0 0 10px var(--brand);
}

.flow-num {
  display: block;
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--brand);
  letter-spacing: 0.08em;
  margin-bottom: 10px;
}

.flow-step h3 {
  margin: 0 0 8px;
  font-size: 1.05rem;
}

.flow-step p {
  margin: 0;
  color: var(--muted);
  font-size: 0.88rem;
}

/* ---- policy / company bands (light by default; some overridden dark below) ---- */
.band {
  background: var(--fg);
  color: var(--fg-dim);
  padding: 72px 0;
}

/* audience / faq / policy center / company 정보는 statement 섹션들과 톤을 맞춰 다크로 오버라이드한다 */
.band-audience, .band-faq, .band-policy, .company-info {
  background-color: var(--black);
  color: var(--fg);
  border-top: 1px solid var(--border);
}

.band-audience .band-eyebrow, .band-faq .band-eyebrow,
.band-policy .band-eyebrow, .company-info .band-eyebrow { color: var(--brand); }

/* 대상 이용자 카드 사이의 "상호 교류" 배지 — 점-선-점 연결 모티프를 반복하지 않도록 다른 형태(고리
   모양 펄스 링 + 교차 화살표 아이콘)로 만들었다. */
.exchange-badge {
  position: relative;
  width: 52px;
  height: 52px;
  margin: 16px auto 0;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--near-black);
  border: 1px solid var(--border);
  color: var(--brand);
}

.exchange-badge svg { width: 22px; height: 22px; }

.exchange-ring {
  position: absolute;
  inset: -6px;
  border-radius: 50%;
  border: 1px solid var(--brand);
  opacity: 0.35;
}

.audience-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-top: 24px;
}

@media (max-width: 700px) {
  .audience-grid { grid-template-columns: 1fr; }
}

.audience-card {
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 28px;
  transition: transform 0.2s ease-out, border-color 0.2s ease-out;
}

.audience-card:hover {
  transform: translateY(-4px);
  border-color: var(--brand);
}

.audience-icon {
  width: 28px;
  height: 28px;
  color: var(--brand);
  margin-bottom: 14px;
}

.audience-tag {
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--brand);
  margin: 0 0 10px;
  text-transform: uppercase;
}

.audience-card h3 {
  margin: 0 0 10px;
  font-size: 1.2rem;
}

.audience-card p:last-child {
  margin: 0;
  color: var(--muted);
  font-size: 0.92rem;
}

.faq-list {
  max-width: 720px;
  margin: 40px auto 0;
}

.faq-item {
  border-bottom: 1px solid var(--border);
  padding: 18px 0;
}

.faq-item summary {
  cursor: pointer;
  font-weight: 600;
  font-size: 1rem;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  transition: color 0.15s ease;
}

.faq-q { display: flex; align-items: center; gap: 12px; }

.faq-icon {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  color: var(--brand);
}

.faq-item summary:hover, .faq-item summary:focus-visible { color: var(--brand); }

.faq-item summary::-webkit-details-marker { display: none; }

.faq-item summary::after {
  content: "+";
  color: var(--brand);
  font-size: 1.2rem;
  margin-left: 16px;
  flex-shrink: 0;
  transition: transform 0.2s ease;
}

.faq-item[open] summary::after { content: "–"; }

.faq-item p {
  margin: 14px 0 0;
  color: var(--muted);
  font-size: 0.92rem;
}

.band-eyebrow {
  text-align: center;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  font-size: 0.78rem;
  font-weight: 800;
  color: var(--brand-dark);
  margin: 0 0 12px;
}

.band h2 {
  text-align: center;
  font-size: 1.7rem;
  margin: 0 0 12px;
}

.band-sub {
  text-align: center;
  color: var(--muted);
  margin: 0 auto 32px;
  max-width: 520px;
}

.news-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-bottom: 28px;
}

@media (max-width: 820px) {
  .news-grid { grid-template-columns: 1fr; }
}

.news-card {
  display: block;
  border: 1px solid var(--border);
  background: var(--card-bg);
  border-radius: 14px;
  padding: 22px;
  text-decoration: none;
  color: var(--fg);
  transition: transform 0.2s ease-out, border-color 0.2s ease-out;
}

.news-card:hover, .news-card:focus-visible {
  transform: translateY(-4px);
  border-color: var(--brand);
}

.news-icon {
  display: block;
  width: 26px;
  height: 26px;
  color: var(--brand);
  margin-bottom: 12px;
}

.news-tag {
  display: inline-block;
  font-weight: 800;
  color: var(--brand);
  margin-bottom: 10px;
  font-size: 0.98rem;
}

.news-card p {
  margin: 0;
  color: var(--muted);
  font-size: 0.88rem;
}

.btn-secondary {
  display: block;
  width: fit-content;
  margin: 0 auto;
  border: 1px solid var(--fg);
  color: var(--fg);
  font-weight: 700;
  padding: 10px 18px;
  border-radius: 10px;
  text-decoration: none;
  font-size: 0.92rem;
  transition: border-color 0.2s ease-out, color 0.2s ease-out;
}

.btn-secondary:hover, .btn-secondary:focus-visible {
  border-color: var(--brand);
  color: var(--brand);
}

.company-info table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.92rem;
  max-width: 720px;
  margin: 0 auto;
}

.company-info th, .company-info td {
  border: 1px solid var(--border);
  padding: 10px 12px;
  text-align: left;
  vertical-align: top;
}

.company-info th {
  background: var(--card-bg);
  width: 140px;
  white-space: nowrap;
}

.company-info td a { color: var(--brand); }

/* ---- footer ---- */
footer.site-footer {
  background: var(--black);
  color: var(--muted);
  font-size: 0.82rem;
  padding: 28px 0;
  border-top: 1px solid var(--border);
}

footer.site-footer a { color: var(--brand); }