/* ============================================================
   Datriss — Light design system (2026 renewal)
   White surfaces · navy ink · single indigo accent · Pretendard
   ============================================================ */
@import url("https://cdn.jsdelivr.net/gh/orioncactus/pretendard@v1.3.9/dist/web/static/pretendard.min.css");
@import url("https://fonts.googleapis.com/css2?family=IBM+Plex+Mono:wght@400;500;600&display=swap");

:root {
  --bg: #ffffff;
  --bg-soft: #f8fafc;
  --bg-mute: #efeff0;
  --surface: #ffffff;
  --text: #1a1b1d;
  --text-strong: #0a0a0b;
  --muted: #6b6e73;
  --muted-2: #7c818b;
  --line: #e7e7e9;
  --line-strong: #d6d6d9;
  --accent: #121214;
  --accent-hover: #2d2d31;
  --accent-weak: #f1f1f2;
  --accent-ink: #121214;
  --dark: #141416;
  --dark-2: #000000;
  --pos: #1a1b1d;
  --radius: 10px;
  --radius-sm: 7px;
  --radius-lg: 18px;
  --shadow-sm: 0 1px 2px rgba(10,10,11,.05), 0 1px 3px rgba(10,10,11,.07);
  --shadow: 0 14px 34px rgba(10,10,11,.08);
  --shadow-lg: 0 24px 60px rgba(10,10,11,.12);
  --mono: "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  --sans: "Pretendard Variable", Pretendard, Inter, system-ui, -apple-system, "Segoe UI", Roboto, "Noto Sans KR", sans-serif;
  --maxw: 1180px;
  --gutter: 24px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  color: var(--text);
  background: var(--bg);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
  word-break: keep-all;
  overflow-wrap: anywhere;
}
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; }
img { max-width: 100%; }
::selection { background: var(--accent-weak); color: var(--accent-ink); }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 3px; }
html[lang="ko"] h1, html[lang="ko"] h2, html[lang="ko"] h3 { word-break: keep-all; }

.skip-link { position: fixed; top: -100px; left: 20px; z-index: 100; padding: 12px 16px; color: #fff; background: var(--accent); border-radius: var(--radius-sm); }
.skip-link:focus { top: 16px; }

/* faint top accent glow instead of the old dark grid */
.site-grid {
  position: fixed; inset: 0 0 auto 0; height: 560px; z-index: -1; pointer-events: none;
  background:
    radial-gradient(900px 420px at 78% -8%, rgba(10,10,11,.05), transparent 70%),
    radial-gradient(700px 360px at 8% -10%, rgba(10,10,11,.035), transparent 70%);
}

/* ---------- Header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 30; height: 68px;
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 max(var(--gutter), calc((100vw - 1320px) / 2));
  background: rgba(255,255,255,.82); backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
}
.brand { display: inline-flex; align-items: center; gap: 10px; font-weight: 700; font-size: 16px; letter-spacing: -.01em; color: var(--text-strong); }
.brand-mark { position: relative; width: 26px; height: 26px; display: inline-flex; align-items: flex-end; gap: 3px; padding: 5px; border-radius: 6px; background: var(--accent); }
.brand-mark i { width: 3px; background: #fff; display: block; border-radius: 2px; }
.brand-mark i:nth-child(1) { height: 6px; } .brand-mark i:nth-child(2) { height: 13px; } .brand-mark i:nth-child(3) { height: 9px; }
.desktop-nav { display: flex; gap: 2px; }
.desktop-nav a { padding: 9px 13px; color: #475467; font-size: 14.5px; font-weight: 500; border-radius: var(--radius-sm); transition: color .18s, background .18s; }
.desktop-nav a:hover { color: var(--text-strong); background: var(--bg-mute); }
.header-right { display: flex; align-items: center; gap: 12px; }
.lang-toggle { display: inline-flex; align-items: center; gap: 5px; padding: 7px 10px; color: var(--muted-2); background: transparent; border: 1px solid var(--line-strong); border-radius: var(--radius-sm); font: 600 11px/1 var(--mono); cursor: pointer; }
.lang-toggle span.active { color: var(--accent); }
.lang-toggle i { font-style: normal; color: var(--muted-2); }
.header-cta { display: inline-flex; align-items: center; gap: 8px; padding: 10px 16px; color: #fff; background: var(--dark); border-radius: var(--radius-sm); font-size: 14px; font-weight: 600; transition: background .18s, transform .18s; }
.header-cta span { font-style: normal; }
.header-cta:hover { background: var(--dark-2); }
.nav-toggle { display: none; flex-direction: column; align-items: center; justify-content: center; gap: 4px; width: 42px; height: 42px; background: #fff; border: 1px solid var(--line-strong); border-radius: var(--radius-sm); cursor: pointer; }
.nav-toggle i { width: 17px; height: 2px; background: var(--text); border-radius: 2px; transition: transform .2s, opacity .2s; }
.nav-toggle[aria-expanded="true"] i:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] i:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] i:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

/* ---------- Shared section + headings ---------- */
.home-section { max-width: var(--maxw); margin: auto; padding: 112px var(--gutter); }
.home-heading { max-width: 760px; margin: 0 auto 52px; text-align: center; }
.section-index { display: inline-block; margin-bottom: 14px; padding: 6px 12px; color: var(--accent-ink); background: var(--accent-weak); border-radius: 999px; font: 600 11.5px/1 var(--mono); letter-spacing: .08em; text-transform: uppercase; }
h1 { margin: 0; font-size: clamp(34px, 4.3vw, 54px); font-weight: 600; line-height: 1.16; letter-spacing: -.025em; color: var(--text-strong); }
h2 { margin: 0; font-size: clamp(30px, 3.5vw, 44px); font-weight: 600; line-height: 1.18; letter-spacing: -.02em; color: var(--text-strong); }
h1 span { color: var(--accent); }
h2 span { color: #475467; }
.home-heading > p { max-width: 640px; margin: 20px auto 0; color: var(--muted); font-size: 18px; line-height: 1.75; }
.products-key { max-width: 720px; margin: 20px auto 0; color: var(--text); font-size: 18px; line-height: 1.7; font-weight: 500; }
.products-key b, .products-key strong { color: var(--accent-ink); font-weight: 600; }

/* ---------- Buttons ---------- */
.button { display: inline-flex; align-items: center; gap: 9px; padding: 14px 20px; border-radius: var(--radius-sm); font-size: 15px; font-weight: 600; line-height: 1; border: 1px solid transparent; transition: background .18s, color .18s, border-color .18s, transform .18s; cursor: pointer; }
.button span { font-style: normal; }
.button-primary { color: #fff; background: var(--accent); }
.button-primary:hover { background: var(--accent-hover); }
.button-secondary { color: var(--text-strong); background: #fff; border-color: var(--line-strong); }
.button-secondary:hover { border-color: var(--accent); color: var(--accent-ink); background: var(--accent-weak); }
.button-dark { color: #fff; background: var(--dark); }
.button-dark:hover { background: var(--dark-2); }
.text-link { display: inline-flex; align-items: center; gap: 7px; color: var(--accent-ink); font-size: 14.5px; font-weight: 600; }
.text-link span { font-style: normal; }
.text-link:hover { color: var(--accent-hover); }

/* ---------- Hero ---------- */
.company-hero {
  max-width: var(--maxw); margin: auto; padding: 72px var(--gutter) 84px;
  display: grid; grid-template-columns: 1.05fr .95fr; gap: 64px; align-items: center;
}
.eyebrow { display: inline-flex; align-items: center; gap: 9px; margin-bottom: 22px; padding: 7px 14px; color: #344054; background: var(--bg-mute); border: 1px solid var(--line); border-radius: 999px; font-size: 13px; font-weight: 500; }
.live-dot { width: 7px; height: 7px; border-radius: 50%; background: var(--pos); box-shadow: 0 0 0 4px rgba(10,10,11,.1); }
.company-hero-copy h1 { margin-bottom: 22px; }
.company-hero-copy > p { max-width: 540px; margin: 0; color: var(--muted); font-size: 18px; line-height: 1.75; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 34px; }
.hero-metrics { display: flex; flex-wrap: wrap; gap: 36px; margin: 40px 0 0; padding: 26px 0 0; list-style: none; border-top: 1px solid var(--line); }
.hero-metrics li { display: flex; flex-direction: column; gap: 6px; }
.hero-metrics strong { font: 700 28px/1 var(--sans); letter-spacing: -.02em; color: var(--text-strong); }
.hero-metrics span { color: var(--muted); font-size: 13px; }

/* Hero mock card */
.company-system { background: var(--surface); border: 1px solid var(--line-strong); border-radius: var(--radius-lg); box-shadow: var(--shadow-lg); overflow: hidden; }
.system-head { display: flex; align-items: center; justify-content: space-between; padding: 16px 20px; border-bottom: 1px solid var(--line); font-size: 13px; font-weight: 600; color: var(--text-strong); }
.system-head > div { display: inline-flex; align-items: center; gap: 10px; }
.console-logo { display: inline-grid; place-items: center; width: 24px; height: 24px; color: #fff; background: var(--accent); border-radius: 6px; font-weight: 700; font-size: 13px; }
.status { display: inline-flex; align-items: center; gap: 7px; color: var(--pos); font: 600 11px/1 var(--mono); }
.status i { width: 7px; height: 7px; border-radius: 50%; background: var(--pos); animation: pulse 1.8s infinite; }
.system-statement { padding: 26px 24px; border-bottom: 1px solid var(--line); background: var(--bg-soft); }
.system-statement > span { color: var(--muted); font: 600 11px/1 var(--mono); letter-spacing: .06em; text-transform: uppercase; }
.system-statement strong { display: block; margin: 12px 0 6px; color: var(--accent); font-size: 52px; font-weight: 700; letter-spacing: -.04em; }
.system-statement strong em { font-size: .36em; color: var(--muted-2); font-style: normal; font-weight: 500; }
.system-statement p { margin: 0; color: var(--muted); font: 600 11px/1 var(--mono); letter-spacing: .08em; }
.system-grid { display: grid; grid-template-columns: repeat(2, 1fr); }
.system-grid div { padding: 18px 20px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.system-grid div:nth-child(2n) { border-right: 0; }
.system-grid div:nth-child(n+3) { border-bottom: 0; }
.system-grid span { color: var(--muted); font-size: 12px; }
.system-grid strong { display: block; margin: 9px 0 4px; color: var(--text-strong); font-size: 15px; font-weight: 600; }
.system-grid small { color: var(--muted-2); font-size: 11px; }
.system-stack { display: flex; flex-wrap: wrap; gap: 7px; padding: 16px 20px; background: var(--bg-soft); border-top: 1px solid var(--line); }
.system-stack span { padding: 6px 10px; color: #475467; background: #fff; border: 1px solid var(--line); border-radius: 999px; font: 500 11px/1 var(--mono); }
.system-stack span:first-child { color: var(--accent-ink); background: var(--accent-weak); border-color: transparent; }

/* ---------- Problem ---------- */
.problem-section { background: var(--bg-soft); max-width: none; }
.problem-section > * { max-width: var(--maxw); margin-left: auto; margin-right: auto; }
.problem-band { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.problem-q { padding: 32px 28px; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow-sm); transition: box-shadow .2s, transform .2s; }
.problem-q:hover { box-shadow: var(--shadow); transform: translateY(-2px); }
.problem-num { display: inline-grid; place-items: center; width: 34px; height: 34px; color: var(--accent-ink); background: var(--accent-weak); border-radius: 8px; font: 600 13px/1 var(--mono); }
.problem-q strong { display: block; margin: 20px 0 12px; font-size: 20px; font-weight: 600; line-height: 1.4; color: var(--text-strong); }
.problem-q p { margin: 0; color: var(--muted); font-size: 15.5px; line-height: 1.72; }

/* ---------- Products ---------- */
.product-flow { display: flex; align-items: center; justify-content: center; flex-wrap: wrap; gap: 10px; margin: -28px auto 44px; }
.product-flow span { padding: 9px 16px; background: #fff; border: 1px solid var(--line-strong); border-radius: 999px; font-size: 14px; font-weight: 600; color: var(--text-strong); box-shadow: var(--shadow-sm); }
.product-flow span.is-mid { border-color: var(--accent); color: var(--accent-ink); }
.product-flow i { color: var(--muted-2); font-style: normal; font-size: 15px; }

.foundation-card { display: grid; grid-template-columns: 1.15fr 1fr; gap: 44px; align-items: center; margin-bottom: 22px; padding: 40px; background: linear-gradient(135deg, #171719, #2b2b2e); color: #ececed; border-radius: var(--radius-lg); box-shadow: var(--shadow-lg); }
.foundation-label { display: inline-block; color: #c9c9cc; font: 600 11px/1 var(--mono); letter-spacing: .1em; }
.foundation-copy > strong { display: block; margin: 16px 0 14px; font-size: 24px; font-weight: 600; line-height: 1.35; color: #fff; }
.foundation-copy > p { margin: 0; color: #c4c4c7; font-size: 16px; line-height: 1.75; }
.foundation-more { display: inline-flex; align-items: center; gap: 8px; margin-top: 22px; color: #fff; font-size: 14.5px; font-weight: 600; border-bottom: 1px solid rgba(255,255,255,.4); padding-bottom: 3px; }
.foundation-more span { font-style: normal; }
.foundation-more:hover { border-color: #fff; }
.foundation-facts { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; margin: 0; padding: 0; list-style: none; }
.foundation-facts li { display: flex; flex-direction: column; gap: 8px; padding: 20px; background: rgba(255,255,255,.055); border: 1px solid rgba(255,255,255,.12); border-radius: var(--radius); }
.foundation-facts b { color: #fff; font-size: 22px; font-weight: 700; letter-spacing: -.02em; }
.foundation-facts span { color: #b4b4b7; font-size: 12.5px; }

.product-cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.product-card { display: flex; flex-direction: column; padding: 32px 28px; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow-sm); transition: box-shadow .2s, transform .2s, border-color .2s; }
.product-card:hover { box-shadow: var(--shadow); transform: translateY(-3px); border-color: var(--line-strong); }
.product-tag { color: var(--accent-ink); font: 600 10.5px/1 var(--mono); letter-spacing: .1em; }
.product-head > strong { display: block; margin: 14px 0 12px; font-size: 24px; font-weight: 700; letter-spacing: -.02em; color: var(--text-strong); }
.product-q { margin: 0 0 10px; color: var(--text-strong); font-size: 16px; font-weight: 600; line-height: 1.5; }
.product-desc { margin: 0; color: var(--muted); font-size: 14.5px; line-height: 1.72; }
.product-io { margin: 22px 0 0; padding: 20px 0 0; border-top: 1px solid var(--line); display: grid; gap: 14px; }
.product-io > div { display: grid; grid-template-columns: 52px 1fr; gap: 14px; align-items: start; }
.product-io dt { color: var(--accent-ink); font: 600 11px/1.3 var(--mono); padding-top: 2px; }
.product-io dd { margin: 0; color: #475467; font-size: 13.5px; line-height: 1.6; }
.product-cta { display: inline-flex; align-items: center; justify-content: space-between; gap: 14px; margin-top: 24px; padding: 12px 16px; color: var(--text-strong); background: var(--bg-mute); border-radius: var(--radius-sm); font-size: 13.5px; font-weight: 600; transition: background .18s, color .18s; }
.product-cta span { font-style: normal; }
.product-cta:hover { color: #fff; background: var(--accent); }
.product-card.is-featured { border-color: var(--accent); box-shadow: 0 0 0 1px var(--accent), var(--shadow); }

/* ---------- How it works ---------- */
.how-steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; margin: 0; padding: 0; list-style: none; }
.how-steps li { padding: 28px 24px; background: var(--bg-soft); border: 1px solid var(--line); border-radius: var(--radius); }
.how-num { display: inline-block; color: var(--accent); font: 700 20px/1 var(--mono); letter-spacing: -.02em; }
.how-steps strong { display: block; margin: 20px 0 10px; font-size: 17px; font-weight: 600; line-height: 1.4; color: var(--text-strong); }
.how-steps p { margin: 0; color: var(--muted); font-size: 14px; line-height: 1.68; }

/* ---------- Cases ---------- */
.cases-section { background: var(--bg-soft); max-width: none; }
.cases-section > * { max-width: var(--maxw); margin-left: auto; margin-right: auto; }
.case-primary { max-width: 900px; margin: 0 auto; padding: 38px 40px; background: #fff; border: 1px solid var(--line); border-radius: var(--radius-lg); box-shadow: var(--shadow); }
.case-primary-tag { display: inline-block; padding: 6px 12px; color: var(--accent-ink); background: var(--accent-weak); border-radius: 999px; font: 600 11px/1 var(--mono); letter-spacing: .06em; }
.case-primary-title { display: block; margin: 18px 0 24px; font-size: 25px; font-weight: 600; line-height: 1.35; color: var(--text-strong); }
.case-lines { margin: 0; display: grid; gap: 0; }
.case-lines > div { display: grid; grid-template-columns: 92px 1fr; gap: 20px; align-items: start; padding: 16px 0; border-bottom: 1px solid var(--line); }
.case-lines > div:last-child { border-bottom: 0; }
.case-lines dt { color: var(--accent-ink); font: 600 12px/1.5 var(--mono); }
.case-lines dd { margin: 0; color: var(--text); font-size: 15.5px; line-height: 1.65; }
.case-other { max-width: 900px; margin: 22px auto 0; padding: 28px 32px; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); }
.case-other-label { color: var(--muted); font: 600 11px/1 var(--mono); letter-spacing: .08em; text-transform: uppercase; }
.case-other ul { margin: 18px 0 0; padding: 0; list-style: none; display: grid; gap: 14px; }
.case-other li { display: flex; flex-wrap: wrap; align-items: baseline; gap: 6px 14px; padding-bottom: 14px; border-bottom: 1px solid var(--line); }
.case-other li:last-child { border-bottom: 0; padding-bottom: 0; }
.case-other li b { font-size: 15px; font-weight: 600; color: var(--text-strong); }
.case-other li span { color: var(--muted); font-size: 14px; }
.case-other li em { color: var(--accent-ink); font-style: normal; font: 600 11px/1 var(--mono); padding: 3px 7px; background: var(--accent-weak); border-radius: 5px; }
.cases-more { margin-top: 20px; }

/* ---------- Data advantage ---------- */
.data-steps { display: flex; align-items: stretch; justify-content: center; flex-wrap: wrap; gap: 14px; }
.data-steps article { flex: 1 1 260px; max-width: 340px; padding: 30px 28px; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow-sm); }
.data-steps article span { color: var(--accent); font: 700 16px/1 var(--mono); }
.data-steps article strong { display: block; margin: 16px 0 10px; font-size: 19px; font-weight: 600; color: var(--text-strong); }
.data-steps article p { margin: 0; color: var(--muted); font-size: 14.5px; line-height: 1.68; }
.data-steps > i { display: flex; align-items: center; color: var(--muted-2); font-style: normal; font-size: 20px; }
.data-more { display: block; width: fit-content; margin: 34px auto 0; }

/* ---------- Plans ---------- */
.plans-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.plan-card { display: flex; flex-direction: column; padding: 32px 28px; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow-sm); }
.plan-tag { color: var(--accent-ink); font: 600 11px/1 var(--mono); letter-spacing: .1em; }
.plan-card > strong { display: block; margin: 16px 0 12px; font-size: 18px; font-weight: 600; line-height: 1.4; color: var(--text-strong); }
.plan-card > p { margin: 0 0 24px; color: var(--muted); font-size: 14.5px; line-height: 1.68; }
.plan-cta { display: inline-flex; align-items: center; justify-content: space-between; gap: 14px; margin-top: auto; padding: 12px 16px; color: var(--text-strong); border: 1px solid var(--line-strong); border-radius: var(--radius-sm); font-size: 13.5px; font-weight: 600; transition: .18s; }
.plan-cta span { font-style: normal; }
.plan-cta:hover { color: #fff; background: var(--accent); border-color: var(--accent); }
.plans-note { max-width: 680px; margin: 32px auto 0; text-align: center; color: var(--muted); font-size: 14.5px; line-height: 1.7; }
.plans-note a { color: var(--accent-ink); font-weight: 600; }

/* ---------- Trust ---------- */
.trust-grid { display: grid; grid-template-columns: 1.1fr 1fr .9fr; gap: 20px; }
.trust-programs, .trust-press, .trust-company { padding: 30px 28px; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow-sm); }
.trust-label { display: block; margin-bottom: 20px; color: var(--muted); font: 600 11px/1 var(--mono); letter-spacing: .08em; text-transform: uppercase; }
.trust-programs ul { margin: 0; padding: 0; list-style: none; display: grid; gap: 16px; }
.trust-programs li { display: flex; flex-direction: column; gap: 5px; }
.trust-programs b { font-size: 15px; font-weight: 600; color: var(--text-strong); }
.trust-programs span { color: var(--muted); font-size: 13px; line-height: 1.55; }
.trust-press a { display: flex; flex-direction: column; gap: 4px; padding: 13px 0; border-bottom: 1px solid var(--line); }
.trust-press a b { color: var(--accent-ink); font: 600 11px/1 var(--mono); }
.trust-press a span { color: var(--text); font-size: 13.5px; line-height: 1.5; }
.trust-more { display: inline-block; margin-top: 16px; color: var(--accent-ink); font: 600 13px/1 var(--sans); }
.trust-company p { margin: 0 0 14px; color: var(--muted); font-size: 14.5px; line-height: 1.72; }

/* ---------- Final CTA (dark anchor) ---------- */
.final-band { position: relative; overflow: hidden; max-width: var(--maxw); margin: 0 auto 90px; padding: 84px var(--gutter); text-align: center; background: linear-gradient(135deg, #141416, #2b2b2e); border-radius: var(--radius-lg); }
.contact-noise { position: absolute; inset: 0; opacity: .6; background:
  radial-gradient(600px 300px at 80% 0%, rgba(255,255,255,.07), transparent 70%),
  radial-gradient(500px 260px at 10% 110%, rgba(255,255,255,.04), transparent 70%); }
.contact-inner { position: relative; max-width: 720px; margin: auto; }
.final-band .section-index { color: #d6d6d9; background: rgba(255,255,255,.1); }
.final-band h2 { margin: 18px auto 16px; color: #fff; }
.final-band p { margin: 0 auto 30px; color: #c4c4c7; font-size: 17px; line-height: 1.7; }
.final-actions { display: flex; flex-wrap: wrap; justify-content: center; gap: 12px; }
.final-band .button-primary { background: #fff; color: #0a0a0b; }
.final-band .button-primary:hover { background: #ececed; }
.final-band .button-dark { background: transparent; color: #fff; border-color: rgba(255,255,255,.38); }
.final-band .button-dark:hover { background: rgba(255,255,255,.1); border-color: rgba(255,255,255,.6); }
.final-sub { display: inline-flex; margin-top: 24px; color: #cfcfd2; }
.final-sub:hover { color: #fff; }

/* ---------- Partners / supporting institutions (logo wall) ---------- */
.partners-section { max-width: var(--maxw); margin: auto; padding: 0 var(--gutter) 96px; }
.partners-label { display: block; text-align: center; margin-bottom: 28px; color: var(--muted); font: 600 11px/1 var(--mono); letter-spacing: .14em; text-transform: uppercase; }
.logo-marquee { overflow: hidden; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line);
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 7%, #000 93%, transparent);
  mask-image: linear-gradient(90deg, transparent, #000 7%, #000 93%, transparent); }
.logo-track { display: flex; width: max-content; align-items: center; margin: 0; padding: 0; list-style: none; animation: logo-scroll 40s linear infinite; }
.logo-marquee:hover .logo-track { animation-play-state: paused; }
.logo-track li { flex: 0 0 auto; display: flex; align-items: center; justify-content: center; padding: 22px 30px; }
.logo-track img { height: 42px; width: auto; max-width: none; object-fit: contain; opacity: .92; transition: opacity .2s, transform .2s; }
.logo-track li:hover img { opacity: 1; transform: translateY(-1px); }
@keyframes logo-scroll { to { transform: translateX(-50%); } }
@media (prefers-reduced-motion: reduce) { .logo-track { animation: none; flex-wrap: wrap; justify-content: center; } }

/* Product badges (functional color-coding) */
.case-badges { display: flex; flex-wrap: wrap; gap: 6px; }
.case-other li .case-badges { margin-left: auto; }
.case-badges .pb { display: inline-flex; align-items: center; padding: 4px 10px; border-radius: 999px; font: 600 11px/1.3 var(--mono); letter-spacing: .01em; white-space: nowrap; }
.case-badges .pb-fb { color: #1d4ed8; background: #e8efff; }
.case-badges .pb-cn { color: #15803d; background: #e6f6ec; }
.case-badges .pb-nx { color: #6d28d9; background: #f1ebfe; }

/* Data section actions (tech + blog) */
.data-actions { display: flex; flex-wrap: wrap; justify-content: center; gap: 12px; margin-top: 34px; }

/* ---------- Footer ---------- */
.site-footer { max-width: var(--maxw); margin: auto; padding: 56px var(--gutter) 48px; border-top: 1px solid var(--line); }
.foot-top { display: grid; grid-template-columns: 1.3fr 2fr; gap: 48px; padding-bottom: 40px; }
.foot-brand .brand { font-size: 16px; }
.foot-company-lines { display: flex; flex-direction: column; gap: 5px; margin: 18px 0 0; color: var(--muted); font-size: 13.5px; line-height: 1.5; }
.foot-company-lines a { color: var(--muted); }
.foot-company-lines a:hover { color: var(--text); }
.foot-cols { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; }
.foot-col { display: flex; flex-direction: column; gap: 12px; }
.foot-col-label { color: var(--text-strong); font-size: 13px; font-weight: 600; margin-bottom: 2px; }
.foot-col a { color: var(--muted); font-size: 13.5px; }
.foot-col a:hover { color: var(--text); }
.foot-bottom { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 14px; padding-top: 28px; border-top: 1px solid var(--line); }
.foot-legal { display: flex; flex-wrap: wrap; gap: 20px; }
.foot-legal a { color: var(--text); font-size: 13px; font-weight: 500; }
.foot-legal a:hover { color: var(--accent-ink); }
.foot-copy { color: var(--muted-2); font-size: 12.5px; }
@media (max-width: 760px) {
  .foot-top { grid-template-columns: 1fr; gap: 34px; }
  .foot-cols { grid-template-columns: 1fr 1fr; gap: 26px 20px; }
  .foot-bottom { flex-direction: column; align-items: flex-start; }
}

/* ---------- Reveal (P0-safe: visible by default, JS gates the animation) ---------- */
.reveal { opacity: 1; transform: none; transition: opacity .6s ease, transform .6s ease; }
.js .reveal { opacity: 0; transform: translateY(20px); }
.js .reveal.visible { opacity: 1; transform: none; }
@keyframes pulse { 50% { opacity: .4; } }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal, .js .reveal { opacity: 1; transform: none; transition: none; }
  .status i { animation: none; }
  .partner-track { animation: none; }
}

/* ============================================================
   Responsive
   ============================================================ */
@media (max-width: 980px) {
  .company-hero { grid-template-columns: 1fr; gap: 48px; padding-top: 52px; }
  .home-section { padding: 88px var(--gutter); }
  .problem-band { grid-template-columns: 1fr; }
  .foundation-card { grid-template-columns: 1fr; gap: 30px; padding: 32px; }
  .product-cards { grid-template-columns: 1fr; }
  .how-steps { grid-template-columns: repeat(2, 1fr); }
  .plans-grid { grid-template-columns: 1fr; }
  .trust-grid { grid-template-columns: 1fr; }
  .data-steps > i { display: none; }
  .data-steps article { flex-basis: 100%; max-width: none; }
}
@media (max-width: 860px) {
  .brand span { white-space: nowrap; }
  .desktop-nav { display: none; }
  .nav-toggle { display: flex; }
  .header-cta { display: none; }
  .desktop-nav.open {
    display: flex; flex-direction: column; gap: 4px;
    position: absolute; top: 100%; left: 0; right: 0;
    padding: 12px 16px 16px; background: #fff; border-bottom: 1px solid var(--line); box-shadow: var(--shadow);
  }
  .desktop-nav.open a { padding: 13px 14px; font-size: 15px; border-radius: var(--radius-sm); }
  .desktop-nav.open a:hover { background: var(--bg-mute); }
}
@media (max-width: 640px) {
  .site-header { height: 62px; padding: 0 16px; }
  .home-section { padding: 68px 16px; }
  .home-heading { margin-bottom: 38px; }
  .company-hero { padding: 36px 16px 56px; gap: 40px; }
  .company-hero-copy > p, .home-heading > p, .products-key { font-size: 16px; }
  .hero-actions .button { width: 100%; justify-content: center; }
  .hero-metrics { gap: 22px; }
  .hero-metrics strong { font-size: 24px; }
  .product-flow { margin-top: -14px; }
  .how-steps { grid-template-columns: 1fr; }
  .foundation-facts { grid-template-columns: 1fr; }
  .foundation-card { padding: 26px 22px; }
  .case-primary, .case-other { padding: 26px 22px; }
  .case-primary-title { font-size: 21px; }
  .case-lines > div { grid-template-columns: 1fr; gap: 6px; }
  .product-io > div { grid-template-columns: 1fr; gap: 5px; }
  .final-band { padding: 60px 22px; margin-bottom: 64px; }
  .final-actions .button { width: 100%; justify-content: center; }
  .partner-set li { padding: 20px 28px; font-size: 14px; }
  footer { padding: 36px 16px 48px; gap: 10px 20px; }
  footer p { width: 100%; margin: 0 0 6px; }
}
/* product letter icons (F/C/N) — notation only */
.pi{display:inline-grid;place-items:center;width:20px;height:20px;border-radius:6px;font:700 11px/1 var(--mono);color:#fff;flex:0 0 auto;vertical-align:middle}
.pi-f{background:#2f6bff}.pi-c{background:#16a34a}.pi-n{background:#6d28d9}
.product-head>strong{display:flex;align-items:center;gap:9px}
.product-flow span{display:inline-flex;align-items:center;gap:7px}
.case-badges .pb{gap:6px}

/* identity band + homepage flywheel */
.identity-band{background:var(--bg-soft);border-block:1px solid var(--line)}
.identity-inner{max-width:var(--maxw);margin:auto;padding:100px var(--gutter);display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
.identity-copy .section-index{margin-bottom:14px}
.identity-copy h2{margin:0}
.identity-copy>p{max-width:560px;margin:20px 0 0;color:var(--muted);font-size:17px;line-height:1.75}
.identity-pillars{display:grid;gap:12px;margin:30px 0 0;padding:0;list-style:none}
.identity-pillars li{display:grid;grid-template-columns:120px 1fr;gap:16px;align-items:baseline;padding:16px 18px;background:#fff;border:1px solid var(--line);border-radius:var(--radius)}
.identity-pillars b{font-size:15px;font-weight:600;color:var(--text-strong)}
.identity-pillars span{color:var(--muted);font-size:14px;line-height:1.55}
.identity-copy .text-link{margin-top:28px}
.fly-wrap{display:flex;align-items:center;justify-content:center}
.fly-wrap svg{width:100%;max-width:420px;height:auto;font-family:var(--sans)}
.fw-ring2{transform-origin:220px 205px;animation:fw-spin 30s linear infinite}
@keyframes fw-spin{to{transform:rotate(360deg)}}
.fw2-ringc{fill:none;stroke:#111;stroke-width:1.5;stroke-dasharray:2 10;stroke-linecap:round;opacity:.45}
.fw2-core{fill:#0f1012}
.fw2-ct1{fill:#fff;font:600 13px var(--sans)}
.fw2-ct2{fill:#9a9da2;font:600 9px var(--mono);letter-spacing:.08em}
.fw2-node{fill:#fff;stroke-width:2}
.fw2-fb{stroke:#2f6bff}.fw2-cn{stroke:#16a34a}.fw2-nx{stroke:#6d28d9}
.fw2-l{font:800 17px var(--sans)}
.fw2-lf{fill:#2f6bff}.fw2-lc{fill:#16a34a}.fw2-ln{fill:#6d28d9}
.fw2-tag{font:700 9px var(--mono)}
.fw2-tf{fill:#1d4ed8}.fw2-tc{fill:#15803d}.fw2-tn{fill:#6d28d9}
.fw2-name{fill:#0a0a0b;font:600 12px var(--sans)}
.fw2-arrow{fill:none;stroke:#c9ccd2;stroke-width:2}
@media(prefers-reduced-motion:reduce){.fw-ring2{animation:none}}
@media(max-width:900px){.identity-inner{grid-template-columns:1fr;gap:40px}.fly-wrap{order:-1}}
@media(max-width:760px){.identity-inner{padding:68px 16px}.identity-pillars li{grid-template-columns:1fr;gap:4px}}

/* FAQ accordion */
.faq-section { background: var(--bg-soft); max-width: none; }
.faq-section > * { max-width: var(--maxw); margin-left: auto; margin-right: auto; }
.faq-list { max-width: 820px; margin: 0 auto; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 4px 24px; box-shadow: var(--shadow-sm); }
.faq-list details { border-bottom: 1px solid var(--line); }
.faq-list details:last-child { border-bottom: 0; }
.faq-list summary { list-style: none; cursor: pointer; display: flex; justify-content: space-between; align-items: center; gap: 18px; padding: 22px 0; font-size: 16.5px; font-weight: 600; color: var(--text-strong); }
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary::after { content: "+"; flex: 0 0 auto; color: var(--muted-2); font-weight: 400; font-size: 22px; line-height: 1; }
.faq-list details[open] summary::after { content: "\2212"; }
.faq-list details p { margin: 0 0 22px; color: var(--muted); font-size: 15.5px; line-height: 1.75; }
/* honesty label on mock */
.status-sample{display:inline-flex;align-items:center;padding:4px 9px;color:var(--muted);background:var(--bg-mute);border-radius:999px;font:600 10px/1 var(--mono);letter-spacing:.1em;text-transform:uppercase}
/* email copy-to-clipboard */
[data-copy-email]{cursor:pointer}
.copy-toast{position:fixed;left:50%;bottom:28px;transform:translateX(-50%) translateY(10px);z-index:200;padding:12px 18px;background:#111214;color:#fff;border-radius:10px;font:600 14px/1.3 "Pretendard Variable",Pretendard,sans-serif;box-shadow:0 12px 34px rgba(0,0,0,.28);opacity:0;pointer-events:none;transition:opacity .2s,transform .2s;max-width:90vw;text-align:center}
.copy-toast.show{opacity:1;transform:translateX(-50%) translateY(0)}