:root {
  --ink: #07111f;
  --ink-2: #12233a;
  --muted: #5d6b7d;
  --line: #dfe7ef;
  --soft: #f4f8fb;
  --white: #ffffff;
  --brand: #1677ff;
  --brand-2: #31c5c7;
  --brand-dark: #0a5fd0;
  --success: #0f9f78;
  --warning: #f0a52b;
  --radius: 22px;
  --shadow: 0 18px 55px rgba(7,17,31,.10);
  --max: 1180px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--white);
  font-family: Pretendard, "Noto Sans KR", "Apple SD Gothic Neo", Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
img, svg { display: block; max-width: 100%; }
button, input, textarea, select { font: inherit; }
button { cursor: pointer; }
.skip-link { position: fixed; left: 12px; top: -80px; z-index: 999; background: #fff; padding: 10px 14px; border-radius: 8px; box-shadow: var(--shadow); }
.skip-link:focus { top: 12px; }
.container { width: min(var(--max), calc(100% - 40px)); margin: 0 auto; }
.narrow { width: min(860px, calc(100% - 40px)); margin: 0 auto; }
.eyebrow { display: inline-flex; align-items: center; gap: 9px; font-weight: 800; letter-spacing: .12em; text-transform: uppercase; color: var(--brand); font-size: .78rem; }
.eyebrow::before { content: ""; width: 25px; height: 2px; background: currentColor; border-radius: 2px; }
.section { padding: 108px 0; }
.section.soft { background: var(--soft); }
.section.dark { color: #fff; background: radial-gradient(circle at 85% 0%, rgba(49,197,199,.23), transparent 34%), linear-gradient(135deg, #07111f, #102946); }
.section-head { display: grid; grid-template-columns: 1fr 1fr; gap: 50px; align-items: end; margin-bottom: 48px; }
.section-head h2, .page-hero h1, .hero h1 { margin: 0; line-height: 1.08; letter-spacing: -.045em; }
.section-head h2 { font-size: clamp(2rem, 4vw, 3.45rem); }
.section-head p { margin: 0; color: var(--muted); font-size: 1.05rem; }
.dark .section-head p, .dark .muted { color: #b9c7d8; }
.muted { color: var(--muted); }
.lead { font-size: clamp(1.06rem, 2vw, 1.28rem); color: var(--muted); max-width: 760px; }

/* Header */
.site-header { position: sticky; top: 0; z-index: 100; border-bottom: 1px solid rgba(223,231,239,.8); background: rgba(255,255,255,.88); backdrop-filter: blur(18px); }
.header-inner { height: 78px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.logo { display: flex; align-items: center; gap: 10px; font-weight: 900; font-size: 1.25rem; letter-spacing: -.04em; }
.logo img { height: 32px; width: auto; display: block; }
.logo-mark { width: 34px; height: 34px; border-radius: 11px; display: grid; place-items: center; background: linear-gradient(135deg, var(--brand), var(--brand-2)); box-shadow: 0 8px 24px rgba(22,119,255,.25); }
.logo-mark svg { width: 22px; height: 22px; }
.main-nav { display: flex; align-items: center; gap: 28px; font-size: .93rem; font-weight: 700; }
.main-nav a { position: relative; color: #27364a; }
.main-nav a::after { content: ""; position: absolute; left: 0; right: 100%; bottom: -8px; height: 2px; background: var(--brand); transition: right .2s ease; }
.main-nav a:hover::after, .main-nav a.active::after { right: 0; }
.header-actions { display: flex; align-items: center; gap: 12px; }
.lang { font-size: .82rem; font-weight: 800; color: var(--muted); }
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 9px; min-height: 46px; padding: 0 19px; border-radius: 999px; border: 1px solid transparent; font-weight: 800; transition: transform .2s ease, box-shadow .2s ease, background .2s ease; }
.btn:hover { transform: translateY(-2px); }
.btn-primary { background: var(--brand); color: #fff; box-shadow: 0 12px 30px rgba(22,119,255,.22); }
.btn-primary:hover { background: var(--brand-dark); }
.btn-secondary { border-color: var(--line); background: #fff; }
.btn-ghost { color: #fff; border-color: rgba(255,255,255,.3); background: rgba(255,255,255,.06); }
.menu-toggle { display: none; width: 44px; height: 44px; border: 1px solid var(--line); border-radius: 12px; background: #fff; }
.menu-toggle span { display: block; width: 20px; height: 2px; margin: 4px auto; background: var(--ink); }

/* Hero */
.hero { position: relative; overflow: hidden; min-height: 770px; color: #fff; background: #07111f; }
.hero::before { content: ""; position: absolute; inset: 0; background: radial-gradient(circle at 80% 24%, rgba(49,197,199,.26), transparent 28%), radial-gradient(circle at 18% 75%, rgba(22,119,255,.25), transparent 33%), linear-gradient(120deg, rgba(255,255,255,.03), transparent 40%); }
.hero-grid { position: absolute; inset: 0; opacity: .22; background-image: linear-gradient(rgba(255,255,255,.08) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.08) 1px, transparent 1px); background-size: 48px 48px; mask-image: linear-gradient(to bottom, black, transparent 90%); }
.hero-inner { position: relative; z-index: 2; min-height: 770px; display: grid; grid-template-columns: 1.12fr .88fr; gap: 54px; align-items: center; padding: 75px 0; }
.hero h1 { max-width: 760px; font-size: clamp(3.15rem, 7vw, 6.3rem); }
.hero h1 .accent { color: #6ee7e0; }
.hero .lead { color: #c3cfdd; max-width: 670px; margin: 28px 0 34px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; }
.hero-proof { display: flex; align-items: center; gap: 12px; margin-top: 38px; color: #aebed0; font-size: .9rem; }
.hero-proof i { width: 8px; height: 8px; border-radius: 50%; background: #6ee7e0; box-shadow: 0 0 0 7px rgba(110,231,224,.14); }
.ecg-panel { position: relative; min-height: 470px; border: 1px solid rgba(255,255,255,.15); border-radius: 34px; overflow: hidden; background: linear-gradient(160deg, rgba(255,255,255,.10), rgba(255,255,255,.03)); box-shadow: 0 40px 100px rgba(0,0,0,.35); backdrop-filter: blur(15px); }
.ecg-panel::before { content: ""; position: absolute; inset: 0; background-image: linear-gradient(rgba(110,231,224,.09) 1px, transparent 1px), linear-gradient(90deg, rgba(110,231,224,.09) 1px, transparent 1px); background-size: 28px 28px; }
.ecg-header { position: relative; z-index: 2; display: flex; justify-content: space-between; padding: 24px 26px; color: #b7c8d8; font-size: .78rem; letter-spacing: .08em; }
.ecg-wave { position: absolute; left: -15%; top: 28%; width: 130%; height: 42%; }
.ecg-wave path { stroke-dasharray: 1400; stroke-dashoffset: 1400; animation: draw 5s linear infinite; }
@keyframes draw { 0% { stroke-dashoffset: 1400; } 65%, 100% { stroke-dashoffset: 0; } }
.biomarker-chip { position: absolute; z-index: 3; padding: 10px 14px; border-radius: 14px; color: #dffefb; border: 1px solid rgba(110,231,224,.28); background: rgba(3,19,32,.62); backdrop-filter: blur(8px); font-size: .82rem; font-weight: 800; }
.chip-1 { left: 8%; bottom: 17%; } .chip-2 { left: 37%; bottom: 9%; } .chip-3 { right: 8%; bottom: 20%; }
.live-dot { display: inline-block; width: 7px; height: 7px; margin-right: 7px; border-radius: 50%; background: #6ee7e0; animation: pulse 1.4s infinite; }
@keyframes pulse { 50% { opacity: .25; transform: scale(.7); } }

/* Page hero */
.page-hero { padding: 118px 0 85px; background: linear-gradient(180deg, #f3f8fc 0%, #fff 100%); overflow: hidden; }
.page-hero .container { position: relative; }
.page-hero h1 { margin-top: 17px; max-width: 950px; font-size: clamp(2.9rem, 6vw, 5.2rem); }
.page-hero .lead { margin-top: 24px; }
.page-hero-visual { margin-top: 50px; min-height: 250px; border-radius: 30px; background: radial-gradient(circle at 80% 20%, rgba(49,197,199,.25), transparent 30%), linear-gradient(135deg, #091828, #173b64); box-shadow: var(--shadow); position: relative; overflow: hidden; color: #fff; }
.page-hero-visual .monitor { position: absolute; inset: 0; display: grid; grid-template-columns: 1.3fr .7fr; align-items: center; padding: 38px; }
.monitor-wave { width: 100%; height: 120px; }
.monitor-values { display: grid; gap: 10px; }
.monitor-values span { display: flex; justify-content: space-between; padding: 10px 13px; border-radius: 10px; background: rgba(255,255,255,.08); font-size: .82rem; }

/* Cards and layouts */
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.card { border: 1px solid var(--line); border-radius: var(--radius); padding: 30px; background: #fff; box-shadow: 0 10px 38px rgba(7,17,31,.04); }
.card h3 { margin: 12px 0 10px; font-size: 1.35rem; line-height: 1.3; }
.card p { margin: 0; color: var(--muted); }
.card .number { color: var(--brand); font-weight: 900; font-size: .82rem; letter-spacing: .1em; }
.card-dark { color: #fff; border-color: rgba(255,255,255,.14); background: rgba(255,255,255,.06); }
.card-dark p { color: #b9c7d8; }
.icon-box { width: 46px; height: 46px; border-radius: 14px; display: grid; place-items: center; color: var(--brand); background: #eaf3ff; font-weight: 900; }
.metric-row { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; border: 1px solid var(--line); border-radius: 24px; overflow: hidden; background: var(--line); }
.metric { padding: 30px 24px; background: #fff; }
.metric strong { display: block; font-size: clamp(2rem, 4vw, 3.4rem); line-height: 1; letter-spacing: -.05em; }
.metric span { display: block; margin-top: 10px; color: var(--muted); font-size: .88rem; }
.tags { display: flex; flex-wrap: wrap; gap: 9px; }
.tag { padding: 7px 11px; border-radius: 999px; color: #28527e; background: #eaf3ff; font-size: .78rem; font-weight: 800; }
.process { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.process-step { position: relative; border-top: 2px solid var(--brand); padding: 25px 0 0; }
.process-step .step-no { display: block; color: var(--brand); font-size: .82rem; font-weight: 900; }
.process-step h3 { margin: 10px 0 8px; }
.process-step p { margin: 0; color: var(--muted); }
.quote { padding: 34px; border-left: 4px solid var(--brand); border-radius: 0 var(--radius) var(--radius) 0; background: #f2f7fd; font-size: 1.2rem; font-weight: 700; }
.timeline { position: relative; display: grid; gap: 0; }
.timeline::before { content: ""; position: absolute; left: 22px; top: 20px; bottom: 20px; width: 2px; background: var(--line); }
.timeline-item { position: relative; display: grid; grid-template-columns: 46px 1fr; gap: 20px; padding: 18px 0; }
.timeline-dot { width: 46px; height: 46px; border: 2px solid var(--brand); border-radius: 50%; display: grid; place-items: center; color: var(--brand); background: #fff; font-size: .76rem; font-weight: 900; z-index: 1; }
.timeline-item h3 { margin: 0 0 6px; }
.timeline-item p { margin: 0; color: var(--muted); }
.status-list { display: grid; gap: 14px; }
.status { display: grid; grid-template-columns: 100px 1fr; gap: 18px; align-items: center; border: 1px solid var(--line); border-radius: 16px; padding: 17px 20px; }
.status b { color: var(--success); }
.status.in-progress b { color: var(--warning); }

/* Solutions */
.solution-nav { display: flex; gap: 10px; flex-wrap: wrap; margin: 34px 0 0; }
.solution-block { display: grid; grid-template-columns: .8fr 1.2fr; gap: 55px; align-items: start; }
.solution-block + .solution-block { margin-top: 120px; padding-top: 120px; border-top: 1px solid var(--line); }
.solution-kicker { display: flex; align-items: center; gap: 12px; color: var(--brand); font-weight: 900; }
.solution-kicker::before { content: ""; width: 10px; height: 10px; border-radius: 50%; background: var(--brand); }
.solution-block h2 { font-size: clamp(2.2rem, 4vw, 3.8rem); line-height: 1.08; margin: 14px 0 20px; letter-spacing: -.04em; }
.list-columns { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-top: 30px; }
.list-box { border-radius: 18px; padding: 22px; background: var(--soft); }
.list-box h3 { margin: 0 0 13px; font-size: 1rem; }
.check-list { margin: 0; padding: 0; list-style: none; display: grid; gap: 9px; color: var(--muted); font-size: .9rem; }
.check-list li { position: relative; padding-left: 20px; }
.check-list li::before { content: "•"; position: absolute; left: 3px; color: var(--brand); font-weight: 900; }
.compare { margin-top: 28px; display: grid; grid-template-columns: 1fr 1fr; border-radius: 20px; overflow: hidden; border: 1px solid var(--line); }
.compare > div { padding: 24px; }
.compare .before { background: #f6f7f9; }
.compare .after { color: #fff; background: linear-gradient(135deg, var(--brand), #1aa8bd); }
.compare strong { display: block; font-size: 2.5rem; line-height: 1.1; }
.session-grid { display: grid; grid-template-columns: repeat(12, 1fr); gap: 6px; margin-top: 25px; }
.session { aspect-ratio: 1; display: grid; place-items: center; border: 1px solid var(--line); border-radius: 8px; font-size: .72rem; color: var(--muted); }
.session.active { color: #fff; background: var(--brand); border-color: var(--brand); }

/* People and partners */
.person { display: grid; grid-template-columns: 90px 1fr; gap: 20px; align-items: start; }
.avatar { width: 90px; height: 90px; border-radius: 24px; display: grid; place-items: center; color: #fff; background: linear-gradient(135deg, var(--brand), var(--brand-2)); font-size: 2rem; font-weight: 900; }
.person h3 { margin: 0 0 2px; }
.person small { color: var(--brand); font-weight: 800; }
.person p { margin: 12px 0 0; color: var(--muted); }
.logo-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 12px; }
.partner { min-height: 110px; display: grid; place-items: center; border: 1px solid var(--line); border-radius: 18px; font-weight: 900; color: #415166; background: #fff; text-align: center; padding: 12px; }
.network { columns: 3; column-gap: 30px; margin: 0; padding-left: 20px; color: var(--muted); }
.network li { margin: 0 0 9px; break-inside: avoid; }
.info-table { width: 100%; border-collapse: collapse; }
.info-table th, .info-table td { padding: 17px 15px; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }
.info-table th { width: 190px; color: var(--muted); font-weight: 700; }

/* Forms / FAQ */
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.field { display: grid; gap: 7px; }
.field.full { grid-column: 1 / -1; }
.field label { font-size: .86rem; font-weight: 800; }
.field input, .field textarea, .field select { width: 100%; border: 1px solid #cfd9e3; border-radius: 13px; padding: 13px 14px; color: var(--ink); background: #fff; outline: none; }
.field input:focus, .field textarea:focus, .field select:focus { border-color: var(--brand); box-shadow: 0 0 0 4px rgba(22,119,255,.1); }
.field textarea { min-height: 160px; resize: vertical; }
.consent { display: flex; align-items: flex-start; gap: 9px; color: var(--muted); font-size: .88rem; }
.notice { display: none; margin-top: 18px; padding: 14px 16px; border-radius: 12px; color: #075e49; background: #def8ee; font-weight: 700; }
.faq { border-top: 1px solid var(--line); }
.faq-item { border-bottom: 1px solid var(--line); }
.faq-q { width: 100%; display: flex; justify-content: space-between; gap: 20px; border: 0; padding: 23px 0; background: transparent; text-align: left; font-weight: 900; }
.faq-q::after { content: "+"; font-size: 1.4rem; color: var(--brand); }
.faq-item.open .faq-q::after { content: "−"; }
.faq-a { max-height: 0; overflow: hidden; transition: max-height .28s ease; color: var(--muted); }
.faq-a p { margin: 0; padding: 0 0 23px; }

/* CTA / Footer */
.cta { padding: 85px 0; color: #fff; background: linear-gradient(135deg, #0b5bc7, #18a7b3); }
.cta-inner { display: flex; align-items: center; justify-content: space-between; gap: 40px; }
.cta h2 { margin: 0; max-width: 750px; font-size: clamp(2.2rem, 5vw, 4.4rem); line-height: 1.06; letter-spacing: -.045em; }
.cta p { color: #dceeff; max-width: 650px; }
.site-footer { color: #b9c7d8; background: #07111f; padding: 72px 0 28px; }
.footer-grid { display: grid; grid-template-columns: 1.5fr repeat(3, .7fr); gap: 44px; }
.site-footer .logo { color: #fff; }
.site-footer .logo img { filter: brightness(0) invert(1); }
.footer-desc { max-width: 410px; color: #90a2b7; }
.footer-title { color: #fff; font-size: .86rem; font-weight: 900; margin-bottom: 14px; }
.footer-links { display: grid; gap: 8px; font-size: .88rem; }
.footer-links a:hover { color: #fff; }
.footer-meta { display: flex; justify-content: space-between; gap: 20px; margin-top: 52px; padding-top: 22px; border-top: 1px solid rgba(255,255,255,.12); font-size: .8rem; color: #7d91a9; }

/* Legal */
.legal h2 { margin-top: 54px; font-size: 1.55rem; }
.legal h3 { margin-top: 35px; }
.legal table { width: 100%; border-collapse: collapse; margin: 18px 0; font-size: .9rem; }
.legal th, .legal td { border: 1px solid var(--line); padding: 12px; text-align: left; }
.legal th { background: var(--soft); }
.legal-nav { position: sticky; top: 98px; border: 1px solid var(--line); border-radius: 18px; padding: 20px; background: #fff; }
.legal-layout { display: grid; grid-template-columns: 260px 1fr; gap: 55px; align-items: start; }
.legal-nav ol { margin: 0; padding-left: 22px; color: var(--muted); font-size: .86rem; }
.legal-nav li { margin-bottom: 8px; }

/* Reveal */
.reveal { opacity: 0; transform: translateY(20px); transition: opacity .7s ease, transform .7s ease; }
.reveal.visible { opacity: 1; transform: translateY(0); }

@media (max-width: 980px) {
  .main-nav { display: none; position: absolute; left: 20px; right: 20px; top: 84px; padding: 20px; border: 1px solid var(--line); border-radius: 18px; background: #fff; box-shadow: var(--shadow); flex-direction: column; align-items: stretch; }
  .main-nav.open { display: flex; }
  .menu-toggle { display: block; }
  .header-actions .btn { display: none; }
  .hero-inner { grid-template-columns: 1fr; padding-top: 105px; }
  .hero { min-height: auto; }
  .ecg-panel { min-height: 390px; }
  .section-head, .solution-block, .legal-layout { grid-template-columns: 1fr; }
  .grid-4, .metric-row { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .process { grid-template-columns: repeat(2, 1fr); }
  .list-columns { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1.2fr 1fr 1fr; }
  .footer-grid > :last-child { grid-column: 2; }
  .legal-nav { position: static; }
}
@media (max-width: 680px) {
  .container, .narrow { width: min(100% - 28px, var(--max)); }
  .section { padding: 78px 0; }
  .header-inner { height: 70px; }
  .hero-inner { min-height: 700px; padding: 90px 0 55px; }
  .hero h1 { font-size: clamp(2.75rem, 14vw, 4.3rem); }
  .ecg-panel { min-height: 330px; }
  .grid-2, .grid-3, .grid-4, .metric-row, .process, .form-grid { grid-template-columns: 1fr; }
  .field.full { grid-column: auto; }
  .logo-grid { grid-template-columns: repeat(2, 1fr); }
  .network { columns: 1; }
  .compare { grid-template-columns: 1fr; }
  .session-grid { grid-template-columns: repeat(6, 1fr); }
  .page-hero { padding: 88px 0 64px; }
  .page-hero-visual .monitor { grid-template-columns: 1fr; }
  .monitor-values { display: none; }
  .cta-inner { align-items: flex-start; flex-direction: column; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-grid > :first-child { grid-column: 1 / -1; }
  .footer-grid > :last-child { grid-column: auto; }
  .footer-meta { flex-direction: column; }
  .person { grid-template-columns: 70px 1fr; }
  .avatar { width: 70px; height: 70px; border-radius: 19px; }
  .info-table th { width: 120px; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
  .reveal { opacity: 1; transform: none; }
}