:root {
  color-scheme: dark;
  --bg: #07090d;
  --surface: rgba(19, 22, 29, .72);
  --line: rgba(255, 255, 255, .11);
  --text: #f5f7fb;
  --muted: #a8afbd;
  --accent: #a88cff;
  --accent-2: #70d8f2;
  font-family: Pretendard, "Segoe UI Variable", "Segoe UI", sans-serif;
  font-synthesis: none;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; min-height: 100vh; overflow-x: hidden; background: var(--bg); color: var(--text); line-height: 1.65; }
a { color: inherit; text-decoration: none; }
.shell { width: min(1160px, calc(100% - 40px)); margin-inline: auto; }
.ambient { position: fixed; z-index: -1; width: 45vw; aspect-ratio: 1; border-radius: 50%; filter: blur(110px); opacity: .16; pointer-events: none; }
.ambient-a { top: -20vw; right: -8vw; background: #7357ff; }
.ambient-b { bottom: -25vw; left: -12vw; background: #1fb6d5; }
.site-header { height: 84px; display: flex; align-items: center; justify-content: space-between; border-bottom: 1px solid var(--line); }
.brand { display: inline-flex; gap: 12px; align-items: center; font-weight: 720; letter-spacing: -.02em; }
.brand-mark { display: grid; place-items: center; width: 34px; height: 34px; border: 1px solid rgba(255,255,255,.22); border-radius: 10px; background: linear-gradient(145deg, rgba(168,140,255,.26), rgba(112,216,242,.1)); box-shadow: inset 0 1px 0 rgba(255,255,255,.16); }
nav { display: flex; gap: 28px; color: var(--muted); font-size: 14px; }
nav a:hover, nav a[aria-current="page"] { color: var(--text); }
.hero { min-height: 650px; display: grid; grid-template-columns: 1.08fr .92fr; gap: 72px; align-items: center; padding-block: 96px 110px; }
.eyebrow { margin: 0 0 18px; color: var(--accent-2); font-size: 12px; font-weight: 750; letter-spacing: .18em; }
h1 { max-width: 760px; margin: 0; font-size: clamp(44px, 5vw, 72px); line-height: 1.12; letter-spacing: -.055em; }
.lead { max-width: 650px; margin: 28px 0 0; color: var(--muted); font-size: 18px; }
.actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 36px; }
.button { min-height: 48px; display: inline-flex; align-items: center; justify-content: center; padding: 0 20px; border: 1px solid var(--line); border-radius: 14px; font-weight: 680; }
.button.primary { color: #0b0d12; border-color: transparent; background: linear-gradient(135deg, #c4b3ff, #7ddff5); }
.button.secondary { background: rgba(255,255,255,.035); }
.fine { margin-top: 16px; color: #777f8e; font-size: 13px; }
.calendar-card { position: relative; padding: 26px; border: 1px solid rgba(255,255,255,.16); border-radius: 26px; background: linear-gradient(145deg, rgba(34,38,49,.88), rgba(14,17,23,.78)); box-shadow: 0 40px 90px rgba(0,0,0,.42), inset 0 1px 0 rgba(255,255,255,.12); backdrop-filter: blur(24px); transform: perspective(1200px) rotateY(-4deg) rotateX(2deg); }
.calendar-card::after { content: ""; position: absolute; inset: 0; border-radius: inherit; background: linear-gradient(120deg, rgba(255,255,255,.08), transparent 38%); pointer-events: none; }
.card-top { display: flex; align-items: flex-start; justify-content: space-between; }
.month { display: block; color: var(--muted); font-size: 11px; letter-spacing: .18em; }
.card-top strong { display: block; margin-top: 2px; font-size: 76px; line-height: 1; letter-spacing: -.07em; }
.status { display: flex; gap: 8px; align-items: center; padding: 8px 12px; border: 1px solid var(--line); border-radius: 100px; color: var(--muted); font-size: 12px; }
.status span { width: 7px; height: 7px; border-radius: 50%; background: #71e5a4; box-shadow: 0 0 16px #71e5a4; }
.agenda { margin-top: 28px; }
.agenda div { display: grid; grid-template-columns: 9px 58px 1fr; gap: 12px; align-items: center; padding: 16px 0; border-top: 1px solid var(--line); }
.agenda i { width: 8px; height: 8px; border-radius: 50%; }
.agenda .violet { background: #a88cff; }.agenda .cyan { background: #70d8f2; }.agenda .amber { background: #ffc56f; }
.agenda span { color: var(--muted); font-size: 11px; }.agenda b { font-size: 14px; }
.week { display: grid; grid-template-columns: repeat(7, 1fr); gap: 5px; margin-top: 18px; }
.week span { display: grid; place-items: center; aspect-ratio: 1; border-radius: 10px; color: #727986; font-size: 12px; }
.week .today { color: #0d1016; background: #f4f6fb; font-weight: 800; }
.features { display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.features article { min-height: 255px; padding: 34px 24px 34px 0; border-right: 1px solid var(--line); }
.features article + article { padding-left: 24px; }.features article:last-child { border-right: 0; }
.feature-no { color: #697180; font-size: 11px; }.features h2 { margin: 54px 0 10px; font-size: 18px; }.features p { margin: 0; color: var(--muted); font-size: 14px; }
footer { min-height: 130px; display: flex; align-items: center; justify-content: space-between; color: #727986; font-size: 13px; }
footer div { display: flex; gap: 24px; }
.document-page { background: radial-gradient(circle at 85% 0, rgba(117,87,255,.12), transparent 36%), var(--bg); }
.document { max-width: 860px; padding-block: 92px 120px; }
.document h1 { font-size: clamp(40px, 6vw, 66px); }
.updated { margin: 22px 0 64px; color: var(--muted); }
.document section { display: grid; grid-template-columns: 190px 1fr; gap: 36px; padding: 30px 0; border-top: 1px solid var(--line); }
.document h2 { margin: 0; font-size: 16px; }.document p, .document ul { margin: 0; color: #c0c6d0; }.document li + li { margin-top: 10px; }
.document code { color: #d4c9ff; font-family: "Cascadia Code", Consolas, monospace; }
.document section a { color: #9de6f7; text-decoration: underline; text-underline-offset: 4px; }
@media (max-width: 860px) {
  .site-header { height: auto; min-height: 76px; gap: 24px; padding-block: 16px; }.site-header nav { gap: 14px; flex-wrap: wrap; justify-content: flex-end; }
  .hero { grid-template-columns: 1fr; gap: 60px; padding-block: 72px; }.calendar-card { max-width: 560px; transform: none; }
  .features { grid-template-columns: 1fr 1fr; }.features article:nth-child(2) { border-right: 0; }.features article:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
  .document section { grid-template-columns: 1fr; gap: 12px; }
}
@media (max-width: 560px) {
  .shell { width: min(100% - 28px, 1160px); }.site-header nav a:first-child { display: none; }
  h1 { font-size: 40px; }.lead { font-size: 16px; }.calendar-card { padding: 20px; }.card-top strong { font-size: 62px; }
  .features { grid-template-columns: 1fr; }.features article, .features article + article { min-height: 210px; padding: 28px 0; border-right: 0; border-bottom: 1px solid var(--line); }.features article:last-child { border-bottom: 0; }.features h2 { margin-top: 34px; }
  footer { align-items: flex-start; flex-direction: column; justify-content: center; gap: 16px; }.document { padding-block: 68px 90px; }
}