:root {
  --bg: #050712;
  --bg2: #0b1022;
  --panel: rgba(255,255,255,.072);
  --panel2: rgba(255,255,255,.105);
  --line: rgba(255,255,255,.14);
  --text: #f8fbff;
  --muted: #93a4bd;
  --cyan: #67e8f9;
  --blue: #60a5fa;
  --violet: #a78bfa;
  --green: #34d399;
  --pink: #fb7185;
  --radius: 28px;
  --shadow: 0 28px 100px rgba(0,0,0,.42);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  min-height: 100vh;
  color: var(--text);
  font-family: Inter, "Noto Sans KR", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background:
    radial-gradient(circle at 12% 8%, rgba(103,232,249,.18), transparent 24%),
    radial-gradient(circle at 82% 0%, rgba(167,139,250,.18), transparent 27%),
    radial-gradient(circle at 68% 58%, rgba(52,211,153,.10), transparent 28%),
    linear-gradient(180deg, #050712 0%, #081021 42%, #050712 100%);
  overflow-x: hidden;
}
body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(255,255,255,.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.035) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(circle at center, #000 0%, transparent 72%);
  z-index: 0;
}
a { color: inherit; text-decoration: none; }
button, input, textarea { font-family: inherit; }
.noise {
  position: fixed;
  inset: 0;
  pointer-events: none;
  opacity: .08;
  z-index: 1;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140' viewBox='0 0 140 140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.7' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='140' height='140' filter='url(%23n)' opacity='.55'/%3E%3C/svg%3E");
}
.cursor-glow {
  position: fixed;
  left: 50%; top: 50%;
  width: 360px; height: 360px;
  pointer-events: none;
  border-radius: 50%;
  transform: translate(-50%, -50%);
  background: radial-gradient(circle, rgba(103,232,249,.15), transparent 62%);
  filter: blur(10px);
  z-index: 0;
}
.site-header {
  position: sticky;
  top: 18px;
  z-index: 10;
  width: min(1180px, calc(100% - 40px));
  margin: 18px auto 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 13px 16px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(5,7,18,.64);
  backdrop-filter: blur(20px);
  box-shadow: 0 20px 70px rgba(0,0,0,.25);
}
.brand { display: flex; align-items: center; gap: 12px; font-weight: 900; letter-spacing: -.02em; }
.brand-mark {
  display: grid; place-items: center;
  width: 42px; height: 42px;
  border-radius: 15px;
  color: #050712;
  background: linear-gradient(135deg, var(--cyan), var(--violet) 60%, var(--green));
  box-shadow: 0 0 34px rgba(103,232,249,.35);
}
.brand-text { font-size: 16px; }
.nav { display: flex; align-items: center; gap: 6px; }
.nav a {
  padding: 11px 14px;
  border-radius: 999px;
  color: #d9e5f7;
  font-size: 14px;
  font-weight: 800;
  transition: color .2s ease, background .2s ease;
}
.nav a:hover, .nav a.active { color: #06101d; background: rgba(103,232,249,.9); }
.menu-btn { display: none; width: 44px; height: 44px; background: transparent; border: 0; padding: 9px; cursor: pointer; }
.menu-btn span { display: block; height: 2px; margin: 6px 0; background: #fff; border-radius: 999px; }
.section { position: relative; z-index: 2; width: min(1180px, calc(100% - 40px)); margin: 0 auto; }
.eyebrow, .section-kicker {
  margin: 0;
  color: var(--cyan);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: .16em;
  text-transform: uppercase;
}
.hero { display: grid; grid-template-columns: 1.08fr .92fr; gap: 48px; align-items: center; min-height: calc(100vh - 88px); padding: 66px 0 50px; }
.hero h1, .research-hero h1, h2 { margin: 0; letter-spacing: -.065em; line-height: .98; }
.hero h1 { margin-top: 18px; font-size: clamp(50px, 8vw, 102px); }
.research-hero h1 { margin-top: 18px; font-size: clamp(48px, 7.2vw, 92px); }
.hero h1 span, .research-hero h1 span, .positioning-card h2 {
  color: transparent;
  background: linear-gradient(90deg, var(--cyan), var(--violet), var(--green));
  -webkit-background-clip: text;
  background-clip: text;
}
.hero-desc { margin: 26px 0 0; color: #c7d3e6; font-size: 18px; line-height: 1.8; max-width: 720px; word-break: keep-all; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 34px; }
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 50px;
  padding: 0 22px;
  border-radius: 999px;
  font-weight: 900;
  border: 1px solid transparent;
  transition: transform .2s ease, border-color .2s ease, background .2s ease, box-shadow .2s ease;
  cursor: pointer;
}
.btn:hover { transform: translateY(-2px); }
.btn.primary { color: #06101d; background: linear-gradient(135deg, var(--cyan), var(--violet)); box-shadow: 0 18px 45px rgba(103,232,249,.23); }
.btn.ghost { border-color: var(--line); background: rgba(255,255,255,.05); color: var(--text); }
.hero-stats, .research-metrics { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; margin-top: 44px; max-width: 590px; }
.hero-stats div, .research-metrics div { padding: 18px; border: 1px solid var(--line); border-radius: 20px; background: var(--panel); backdrop-filter: blur(14px); }
.hero-stats strong, .research-metrics strong { display: block; font-size: 30px; letter-spacing: -.04em; }
.hero-stats span, .research-metrics span { display: block; color: var(--muted); font-size: 13px; margin-top: 4px; }
.hero-visual { position: relative; min-height: 590px; display: grid; place-items: center; }
.orb { position: absolute; border-radius: 999px; filter: blur(2px); opacity: .78; }
.orb-1 { width: 260px; height: 260px; background: rgba(103,232,249,.2); top: 50px; right: 20px; animation: float 7s ease-in-out infinite; }
.orb-2 { width: 340px; height: 340px; background: rgba(167,139,250,.18); bottom: 20px; left: 10px; animation: float 8s ease-in-out infinite reverse; }
.glass-panel {
  position: relative;
  border: 1px solid rgba(255,255,255,.16);
  background: linear-gradient(145deg, rgba(255,255,255,.14), rgba(255,255,255,.04));
  border-radius: 44px;
  backdrop-filter: blur(22px);
  box-shadow: var(--shadow), inset 0 1px 0 rgba(255,255,255,.18);
}
.ai-core { width: min(100%, 540px); aspect-ratio: 1; padding: 18px; overflow: hidden; }
.ai-core::before {
  content: "";
  position: absolute;
  inset: -40%;
  background: conic-gradient(from 0deg, transparent, rgba(103,232,249,.18), transparent, rgba(167,139,250,.16), transparent);
  animation: rotate 13s linear infinite;
}
.brain-svg { position: relative; z-index: 1; width: 100%; height: 100%; }
.svg-pulse { animation: dash 5s linear infinite; stroke-dasharray: 12 16; }
.floating-card {
  position: absolute;
  z-index: 3;
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 230px;
  padding: 15px 16px;
  border-radius: 18px;
  border: 1px solid rgba(255,255,255,.16);
  background: rgba(9,14,31,.72);
  backdrop-filter: blur(20px);
  box-shadow: 0 18px 50px rgba(0,0,0,.28);
}
.floating-card strong { display: block; font-size: 14px; }
.floating-card small { display: block; color: var(--muted); margin-top: 3px; }
.card-a { top: 84px; left: 0; animation: float 5.5s ease-in-out infinite; }
.card-b { right: 0; bottom: 120px; animation: float 6.2s ease-in-out infinite reverse; }
.card-c { left: 42px; bottom: 36px; animation: float 7s ease-in-out infinite; }
.pulse-dot { width: 13px; height: 13px; border-radius: 999px; background: var(--green); box-shadow: 0 0 0 9px rgba(52,211,153,.14); }
.chip-icon { display: grid; place-items: center; width: 30px; height: 30px; border-radius: 10px; color: #06101d; background: linear-gradient(135deg, var(--cyan), var(--violet)); font-weight: 900; font-size: 12px; }
.logo-strip {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255,255,255,.045);
  color: #c5d2e5;
}
.logo-strip span { padding: 10px 16px; border-radius: 999px; background: rgba(255,255,255,.06); font-size: 13px; font-weight: 800; }
.split { display: grid; grid-template-columns: .4fr .95fr .85fr; gap: 40px; padding: 130px 0 70px; }
.split h2, .section-heading h2, .showcase-copy h2, .cta h2, .positioning-card h2, .research-cta h2 { font-size: clamp(38px, 5vw, 64px); }
.split-body p { color: #c8d2e4; line-height: 1.9; font-size: 17px; word-break: keep-all; }
.text-link { display: inline-block; margin-top: 16px; color: var(--cyan); font-weight: 900; }
.positioning { padding: 36px 0 82px; }
.positioning-card {
  display: grid;
  grid-template-columns: .78fr 1.22fr;
  gap: 34px;
  padding: clamp(28px, 5vw, 52px);
  border: 1px solid rgba(255,255,255,.16);
  border-radius: 38px;
  background:
    radial-gradient(circle at 0% 0%, rgba(103,232,249,.17), transparent 33%),
    radial-gradient(circle at 100% 0%, rgba(167,139,250,.16), transparent 34%),
    rgba(255,255,255,.055);
  box-shadow: var(--shadow);
}
.positioning-card h2 { margin-top: 12px; }
.positioning-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.positioning-grid article { padding: 20px; border-radius: 24px; background: rgba(7,11,26,.55); border: 1px solid rgba(255,255,255,.10); }
.positioning-grid span { color: var(--cyan); font-weight: 900; }
.positioning-grid strong { display: block; margin-top: 18px; font-size: 18px; }
.positioning-grid p { margin: 8px 0 0; color: var(--muted); line-height: 1.7; word-break: keep-all; }
.section-heading { text-align: center; max-width: 840px; margin: 0 auto 52px; }
.section-heading h2 { margin-top: 14px; }
.research, .process, .news, .capability-map, .publications { padding: 88px 0; }
.grid { display: grid; gap: 18px; }
.cards-3 { grid-template-columns: repeat(3, 1fr); }
.cards-4 { grid-template-columns: repeat(4, 1fr); }
.feature-card, .news-card, .step, .map-card, .paper-card {
  border: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(255,255,255,.09), rgba(255,255,255,.04));
  border-radius: var(--radius);
  padding: 28px;
  box-shadow: 0 20px 50px rgba(0,0,0,.20);
  transition: transform .25s ease, border-color .25s ease, background .25s ease, opacity .2s ease;
}
.feature-card:hover, .news-card:hover, .step:hover, .map-card:hover, .paper-card:hover { transform: translateY(-7px); border-color: rgba(103,232,249,.36); background: linear-gradient(180deg, rgba(103,232,249,.10), rgba(255,255,255,.04)); }
.icon-glyph {
  width: 58px; height: 58px;
  display: grid; place-items: center;
  border-radius: 20px;
  color: #06101d;
  background: linear-gradient(135deg, var(--cyan), var(--violet));
  border: 1px solid rgba(103,232,249,.18);
  font-weight: 1000;
}
.feature-card h3, .news-card h3, .step h3, .map-card h3, .paper-card h3 { margin: 24px 0 12px; font-size: 22px; letter-spacing: -.03em; }
.feature-card p, .news-card p, .step p, .map-card p, .paper-card p { margin: 0; color: var(--muted); line-height: 1.75; word-break: keep-all; }
.showcase { display: grid; grid-template-columns: .92fr 1fr; gap: 68px; align-items: center; padding: 90px 0; }
.architecture {
  position: relative;
  display: grid;
  gap: 12px;
  padding: 22px;
  border-radius: 34px;
  border: 1px solid rgba(255,255,255,.15);
  background: linear-gradient(145deg, rgba(255,255,255,.13), rgba(255,255,255,.045));
  backdrop-filter: blur(20px);
  box-shadow: var(--shadow);
  transform: rotate(-1.2deg);
}
.architecture::before {
  content: "";
  position: absolute;
  inset: 44px 50%;
  width: 2px;
  transform: translateX(-50%);
  background: linear-gradient(var(--cyan), var(--violet), var(--green));
  opacity: .35;
}
.arch-layer {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 42px 1fr;
  gap: 8px 14px;
  align-items: center;
  padding: 18px;
  border-radius: 22px;
  border: 1px solid rgba(255,255,255,.12);
  background: rgba(8,13,29,.74);
}
.arch-layer span {
  grid-row: span 2;
  display: grid; place-items: center;
  width: 42px; height: 42px;
  border-radius: 14px;
  color: #06101d;
  background: linear-gradient(135deg, var(--cyan), var(--violet));
  font-weight: 1000;
}
.arch-layer strong { font-size: 18px; }
.arch-layer small { color: var(--muted); line-height: 1.45; }
.showcase-copy .eyebrow { margin-bottom: 16px; }
.solution-list { list-style: none; padding: 0; margin: 34px 0 0; display: grid; gap: 14px; }
.solution-list li { display: flex; gap: 18px; padding: 20px; border: 1px solid var(--line); border-radius: 22px; background: rgba(255,255,255,.045); }
.solution-list span { color: var(--cyan); font-weight: 1000; }
.solution-list strong { font-size: 18px; }
.solution-list p { margin: 6px 0 0; color: var(--muted); line-height: 1.65; word-break: keep-all; }
.timeline { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.step span { color: transparent; -webkit-text-stroke: 1px rgba(103,232,249,.85); font-size: 44px; font-weight: 1000; }
.news-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.news-card span { color: var(--cyan); font-weight: 900; font-size: 13px; text-transform: uppercase; }
.cta { padding: 70px 0 110px; }
.cta-card {
  display: grid;
  grid-template-columns: 1fr .92fr;
  gap: 48px;
  align-items: center;
  padding: clamp(30px, 6vw, 64px);
  border: 1px solid rgba(255,255,255,.16);
  border-radius: 38px;
  background:
    radial-gradient(circle at 10% 0%, rgba(103,232,249,.16), transparent 36%),
    radial-gradient(circle at 90% 20%, rgba(167,139,250,.18), transparent 35%),
    rgba(255,255,255,.06);
  box-shadow: var(--shadow);
}
.cta-card p { color: #c8d2e4; line-height: 1.8; word-break: keep-all; }
.contact-form { display: grid; gap: 12px; }
.contact-form input, .contact-form textarea {
  width: 100%;
  color: var(--text);
  background: rgba(8,13,29,.62);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 16px 18px;
  font: inherit;
  outline: none;
}
.contact-form textarea { min-height: 130px; resize: vertical; }
.contact-form input:focus, .contact-form textarea:focus { border-color: rgba(103,232,249,.45); box-shadow: 0 0 0 4px rgba(103,232,249,.08); }
.footer { position: relative; z-index: 2; display: flex; justify-content: space-between; width: min(1180px, calc(100% - 40px)); margin: 0 auto; padding: 36px 0 50px; color: var(--muted); border-top: 1px solid var(--line); font-size: 14px; }
.footer a { color: var(--text); font-weight: 900; }

/* Research page */
.research-hero { display: grid; grid-template-columns: 1.05fr .95fr; gap: 48px; align-items: center; min-height: 690px; padding: 70px 0 34px; }
.research-orbit { position: relative; min-height: 520px; display: grid; place-items: center; }
.orbit-core {
  position: relative;
  z-index: 2;
  display: grid; place-items: center;
  width: 150px; height: 150px;
  border-radius: 42px;
  color: #06101d;
  font-size: 44px;
  font-weight: 1000;
  background: linear-gradient(135deg, var(--cyan), var(--violet));
  box-shadow: 0 0 70px rgba(103,232,249,.28);
}
.orbit-ring { position: absolute; border-radius: 50%; border: 1px solid rgba(255,255,255,.14); box-shadow: inset 0 0 50px rgba(103,232,249,.06); }
.ring-1 { width: 420px; height: 420px; animation: rotate 22s linear infinite; }
.ring-2 { width: 300px; height: 300px; animation: rotate 14s linear infinite reverse; }
.orbit-node {
  position: absolute;
  display: grid; place-items: center;
  min-width: 86px;
  padding: 12px 16px;
  border-radius: 999px;
  border: 1px solid rgba(255,255,255,.16);
  background: rgba(9,14,31,.78);
  backdrop-filter: blur(18px);
  font-weight: 1000;
  box-shadow: 0 18px 50px rgba(0,0,0,.28);
}
.n1 { top: 62px; left: 76px; }
.n2 { top: 100px; right: 56px; }
.n3 { bottom: 92px; right: 88px; }
.n4 { bottom: 76px; left: 92px; }
.research-metrics { grid-template-columns: repeat(4, 1fr); max-width: none; margin-top: 0; padding: 0 0 50px; }
.map-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.map-card span { display: inline-grid; place-items: center; width: 46px; height: 46px; border-radius: 16px; color: #06101d; background: linear-gradient(135deg, var(--cyan), var(--green)); font-weight: 1000; }
.filter-bar { display: flex; justify-content: center; flex-wrap: wrap; gap: 10px; margin: -18px auto 34px; }
.filter-btn {
  padding: 11px 15px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: #d9e5f7;
  background: rgba(255,255,255,.055);
  font-weight: 900;
  cursor: pointer;
  transition: .2s ease;
}
.filter-btn:hover, .filter-btn.active { color: #06101d; background: rgba(103,232,249,.9); border-color: transparent; }
.paper-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.paper-card { min-height: 255px; }
.paper-card.hidden { display: none; }
.paper-meta { display: flex; justify-content: space-between; gap: 10px; align-items: center; }
.paper-meta span { color: var(--cyan); font-weight: 1000; }
.paper-meta b { padding: 6px 9px; border-radius: 999px; color: #06101d; background: linear-gradient(135deg, var(--green), var(--cyan)); font-size: 11px; }
.research-cta { padding: 58px 0 110px; }
.research-cta .cta-card { grid-template-columns: 1fr auto; }
.cta-link { align-self: center; white-space: nowrap; }
.reveal { opacity: 0; transform: translateY(24px); transition: opacity .75s ease, transform .75s ease; }
.reveal.visible { opacity: 1; transform: translateY(0); }
.delay-1 { transition-delay: .12s; }
.delay-2 { transition-delay: .22s; }
.delay-3 { transition-delay: .32s; }
@keyframes float { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-18px); } }
@keyframes rotate { to { transform: rotate(360deg); } }
@keyframes dash { to { stroke-dashoffset: -180; } }

@media (max-width: 1080px) {
  .hero, .showcase, .cta-card, .research-hero, .positioning-card, .research-cta .cta-card { grid-template-columns: 1fr; }
  .hero { padding-top: 70px; }
  .hero-visual { min-height: 520px; }
  .split { grid-template-columns: 1fr; padding-top: 90px; }
  .cards-3, .timeline, .paper-grid, .map-grid, .positioning-grid { grid-template-columns: repeat(2, 1fr); }
  .news-grid { grid-template-columns: 1fr; }
  .research-metrics { grid-template-columns: repeat(2, 1fr); }
  .research-orbit { min-height: 430px; }
}

@media (max-width: 720px) {
  .site-header { width: calc(100% - 24px); margin-top: 12px; border-radius: 24px; }
  .brand-text { display: none; }
  .menu-btn { display: block; }
  .nav {
    position: absolute;
    left: 0; right: 0;
    top: calc(100% + 10px);
    display: grid;
    gap: 0;
    padding: 12px;
    border: 1px solid var(--line);
    border-radius: 22px;
    background: rgba(7,9,21,.93);
    backdrop-filter: blur(20px);
    opacity: 0;
    pointer-events: none;
    transform: translateY(-8px);
    transition: .22s ease;
  }
  .nav.open { opacity: 1; pointer-events: auto; transform: translateY(0); }
  .nav a { padding: 12px; }
  .section { width: calc(100% - 24px); }
  .hero h1, .research-hero h1 { font-size: clamp(42px, 12.5vw, 70px); }
  .hero-desc { font-size: 16px; }
  .hero-stats, .cards-3, .timeline, .paper-grid, .map-grid, .positioning-grid, .research-metrics { grid-template-columns: 1fr; }
  .hero-visual { min-height: 430px; }
  .ai-core { border-radius: 32px; }
  .floating-card { min-width: auto; width: 215px; }
  .card-a { top: 16px; left: 0; }
  .card-b { right: 0; bottom: 76px; }
  .card-c { left: 10px; bottom: 5px; }
  .split h2, .section-heading h2, .showcase-copy h2, .cta h2, .positioning-card h2, .research-cta h2 { font-size: 36px; }
  .research, .process, .news, .showcase, .capability-map, .publications { padding: 64px 0; }
  .solution-list li { flex-direction: column; gap: 10px; }
  .research-orbit { min-height: 360px; transform: scale(.82); }
  .footer { flex-direction: column; gap: 12px; width: calc(100% - 24px); }
}