:root {
  color-scheme: dark;
  --bg: #070a12;
  --panel: rgba(18, 23, 38, 0.72);
  --line: rgba(255, 255, 255, 0.1);
  --text: #f5f7ff;
  --muted: #9aa4ba;
  --violet: #9673ff;
  --cyan: #4ed7e8;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  overflow-x: hidden;
  color: var(--text);
  background: var(--bg);
  font-family: Inter, Pretendard, "Noto Sans KR", system-ui, sans-serif;
}

body::before {
  position: fixed;
  inset: 0;
  z-index: -2;
  content: "";
  background-image: linear-gradient(rgba(255,255,255,.025) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.025) 1px, transparent 1px);
  background-size: 52px 52px;
  mask-image: linear-gradient(to bottom, black, transparent 85%);
}

.orb { position: fixed; z-index: -1; border-radius: 999px; filter: blur(110px); opacity: .19; }
.orb-one { width: 38rem; height: 38rem; top: -18rem; right: -7rem; background: var(--violet); }
.orb-two { width: 28rem; height: 28rem; top: 30rem; left: -16rem; background: var(--cyan); }
.shell { width: min(1120px, calc(100% - 40px)); margin-inline: auto; }
.header { display: flex; align-items: center; justify-content: space-between; height: 84px; border-bottom: 1px solid var(--line); }
.brand { display: flex; gap: 12px; align-items: center; color: var(--text); text-decoration: none; font-size: 18px; font-weight: 750; letter-spacing: -.02em; }
.brand-mark { display: grid; width: 34px; height: 34px; place-items: center; border: 1px solid rgba(255,255,255,.24); border-radius: 10px; background: linear-gradient(145deg, rgba(150,115,255,.6), rgba(78,215,232,.15)); box-shadow: inset 0 1px rgba(255,255,255,.2); }
.environment { color: var(--muted); font-size: 13px; }
.hero { padding: 108px 0 112px; }
.eyebrow { margin: 0 0 18px; color: var(--cyan); font-size: 11px; font-weight: 800; letter-spacing: .19em; }
h1 { max-width: 900px; margin: 0; font-size: clamp(44px, 7vw, 78px); line-height: 1.08; letter-spacing: -.055em; }
h1 span { color: transparent; background: linear-gradient(100deg, #d7ccff, #78e5f0); background-clip: text; }
.hero-copy { max-width: 620px; margin: 30px 0 0; color: var(--muted); font-size: 18px; line-height: 1.75; }
.hero-meta { display: flex; gap: 28px; margin-top: 42px; color: #c8cfde; font-family: ui-monospace, SFMono-Regular, Consolas, monospace; font-size: 12px; }
.status-dot { display: inline-block; width: 7px; height: 7px; margin-right: 8px; border-radius: 50%; background: #57e39b; box-shadow: 0 0 12px #57e39b; }
.agents-section { padding: 0 0 100px; }
.section-heading { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; align-items: end; margin-bottom: 30px; }
.section-heading h2 { margin: 0; font-size: 32px; letter-spacing: -.035em; }
.section-heading > p { justify-self: end; max-width: 470px; margin: 0; color: var(--muted); line-height: 1.7; }
.agent-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
.agent-card, .loading-card { min-height: 270px; padding: 30px; border: 1px solid var(--line); border-radius: 22px; background: var(--panel); backdrop-filter: blur(16px); }
.agent-card { position: relative; overflow: hidden; transition: transform .2s ease, border-color .2s ease; }
.agent-card:hover { transform: translateY(-3px); border-color: rgba(255,255,255,.22); }
.agent-card::after { position: absolute; right: -55px; bottom: -65px; width: 180px; height: 180px; content: ""; border-radius: 50%; background: var(--accent); filter: blur(75px); opacity: .12; }
.card-top { display: flex; justify-content: space-between; gap: 20px; align-items: center; }
.agent-icon { display: grid; width: 46px; height: 46px; place-items: center; border: 1px solid color-mix(in srgb, var(--accent) 45%, transparent); border-radius: 14px; color: var(--accent); background: color-mix(in srgb, var(--accent) 10%, transparent); font-weight: 800; }
.badge { padding: 7px 10px; border: 1px solid var(--line); border-radius: 999px; color: var(--muted); font-size: 11px; }
.agent-card h3 { margin: 34px 0 12px; font-size: 22px; letter-spacing: -.025em; }
.agent-card p { margin: 0; color: var(--muted); line-height: 1.65; }
.card-footer { display: flex; justify-content: space-between; margin-top: 28px; color: #727d94; font-family: ui-monospace, SFMono-Regular, Consolas, monospace; font-size: 11px; }
.loading-card { grid-column: 1 / -1; display: grid; min-height: 160px; place-items: center; color: var(--muted); }
.footer { display: flex; justify-content: space-between; padding: 28px 0 42px; border-top: 1px solid var(--line); color: #697389; font-size: 12px; }

@media (max-width: 720px) {
  .environment { display: none; }
  .hero { padding: 78px 0 86px; }
  .hero-meta { flex-direction: column; gap: 12px; }
  .section-heading { grid-template-columns: 1fr; }
  .section-heading > p { justify-self: start; }
  .agent-grid { grid-template-columns: 1fr; }
}