@font-face { font-family: "Pretendard"; font-weight: 400; font-display: swap; src: url("/brand/fonts/Pretendard-Regular.woff2") format("woff2"); }
@font-face { font-family: "Pretendard"; font-weight: 700; font-display: swap; src: url("/brand/fonts/Pretendard-Bold.woff2") format("woff2"); }
:root {
  --bg: #070b1a; --bg2: #0e1630; --panel: rgba(20, 28, 60, 0.55); --line: rgba(140, 160, 255, 0.16);
  --text: #e6e9f2; --muted: #9aa3c7; --blue: #4f8cff; --cyan: #5cc8ff; --lav: #a78bfa; --peach: #ffb38a;
  --gutter: clamp(16px, 5vw, 48px); --max: 1120px;
  color-scheme: dark;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0; background: var(--bg); color: var(--text); overflow-x: hidden;
  font: 17px/1.75 "Pretendard", system-ui, -apple-system, "Apple SD Gothic Neo", "Noto Sans KR", sans-serif;
  -webkit-font-smoothing: antialiased; word-break: keep-all;
}
a { color: inherit; }
h1, h2, h3 { line-height: 1.3; margin: 0; letter-spacing: -0.01em; }
.eyebrow { margin: 0 0 10px; font-size: 0.82rem; letter-spacing: 0.18em; text-transform: uppercase; color: var(--cyan); }
.lead { color: var(--muted); font-size: 1.05rem; max-width: 720px; }

.top {
  position: fixed; inset: 0 0 auto; z-index: 10; display: flex; align-items: center; gap: 20px;
  padding: calc(10px + env(safe-area-inset-top, 0px)) var(--gutter) 10px;
  background: linear-gradient(180deg, rgba(7, 11, 26, 0.85), rgba(7, 11, 26, 0)); backdrop-filter: blur(6px); -webkit-backdrop-filter: blur(6px);
}
.logo { display: flex; align-items: center; gap: 8px; text-decoration: none; font-weight: 700; letter-spacing: 0.04em; }
.logo img { border-radius: 8px; }
.top nav { display: flex; gap: 18px; margin-left: auto; font-size: 0.9rem; }
.top nav a { text-decoration: none; color: var(--muted); }
.top nav a:hover { color: var(--text); }
.login, .btn {
  display: inline-flex; align-items: center; justify-content: center; min-height: 42px; padding: 0 18px; border-radius: 999px;
  text-decoration: none; font-weight: 700; white-space: nowrap; font-size: 0.92rem;
}
.login { border: 1px solid rgba(92, 200, 255, 0.5); color: var(--cyan); background: rgba(92, 200, 255, 0.08); }
.btn.primary { background: linear-gradient(135deg, var(--blue), var(--lav)); color: #fff; box-shadow: 0 8px 30px rgba(79, 140, 255, 0.35); }
.btn.ghost { border: 1px solid var(--line); background: var(--panel); }

.hero { position: relative; min-height: 100svh; display: grid; align-items: center; padding: 96px var(--gutter) 72px; overflow: hidden; }
.hero-video { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; opacity: 0.8; }
.hero-veil { position: absolute; inset: 0; background: radial-gradient(90% 80% at 30% 50%, rgba(7, 11, 26, 0.85), rgba(7, 11, 26, 0.35) 70%), linear-gradient(0deg, var(--bg), transparent 30%); }
.hero-text { position: relative; max-width: var(--max); width: 100%; margin: 0 auto; }
.hero h1 { font-size: clamp(2.1rem, 6.2vw, 4.4rem); font-weight: 700; margin: 6px 0 20px; }
.hero .lead { font-size: clamp(1rem, 2.2vw, 1.2rem); }
.cta { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }
.scroll-hint { position: absolute; left: 50%; bottom: 20px; transform: translateX(-50%); text-decoration: none; color: var(--muted); font-size: 1.4rem; animation: bob 2s ease-in-out infinite; }
@keyframes bob { 50% { transform: translate(-50%, 6px); } }

.section { max-width: var(--max); margin: 0 auto; padding: clamp(72px, 12vw, 140px) var(--gutter) 0; }
.section h2 { font-size: clamp(1.6rem, 4vw, 2.6rem); margin-bottom: 22px; }
.note { color: var(--muted); margin-top: 24px; }
.pair { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 320px), 1fr)); gap: 16px; }
.card, .mini, .beat article { background: var(--panel); border: 1px solid var(--line); border-radius: 22px; padding: 24px; }
.card h3 { display: flex; align-items: center; gap: 10px; font-size: 1.4rem; margin-bottom: 8px; }
.card p, .mini p, .beat p { margin: 0; color: var(--muted); }
.mark { width: 18px; height: 18px; border-radius: 50%; }
.mark.moon { background: radial-gradient(circle at 35% 35%, #fff, #c9d6ff 60%, #6d7bb8); box-shadow: 0 0 16px rgba(201, 214, 255, 0.6); }
.mark.wave { background: linear-gradient(135deg, var(--cyan), var(--lav)); border-radius: 40% 60% 50% 50%; box-shadow: 0 0 16px rgba(92, 200, 255, 0.6); }

.waves { display: grid; gap: 18px; }
.wave-card { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr); gap: 0; overflow: hidden; background: var(--panel); border: 1px solid var(--line); border-radius: 24px; }
.wave-card video { width: 100%; height: 100%; min-height: 220px; object-fit: cover; }
.wave-card > div { padding: clamp(20px, 3vw, 36px); align-self: center; }
.wave-card h3 { font-size: 1.35rem; margin-bottom: 8px; }
.wave-card small { color: var(--cyan); }
.wave-card p { color: var(--muted); margin: 0; }
.wave-card:nth-child(2) { grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr); }
.wave-card:nth-child(2) video { order: 2; }

.hq { position: relative; max-width: none; padding-left: 0; padding-right: 0; }
.hq-video { position: absolute; inset: clamp(72px, 12vw, 140px) 0 0; width: 100%; height: calc(100% - clamp(72px, 12vw, 140px)); object-fit: cover; opacity: 0.35; mask-image: linear-gradient(180deg, transparent, #000 20%, #000 80%, transparent); -webkit-mask-image: linear-gradient(180deg, transparent, #000 20%, #000 80%, transparent); }
.hq-inner { position: relative; max-width: var(--max); margin: 0 auto; padding: 0 var(--gutter) 40px; }
.constellation { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 230px), 1fr)); gap: 14px; margin-top: 28px; }
.node-group { background: rgba(10, 16, 40, 0.72); border: 1px solid var(--line); border-radius: 20px; padding: 18px 20px; backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px); }
.node-group h3 { font-size: 0.85rem; letter-spacing: 0.12em; color: var(--cyan); margin-bottom: 8px; }
.node-group ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 8px; }
.node-group li { display: grid; color: var(--muted); font-size: 0.92rem; line-height: 1.45; }
.node-group li b { color: var(--text); font-size: 1rem; }
.node-group li b::before { content: ""; display: inline-block; width: 7px; height: 7px; margin-right: 8px; vertical-align: middle; border-radius: 50%; background: var(--cyan); box-shadow: 0 0 10px var(--cyan); }
.node-group.center { border-color: rgba(255, 179, 138, 0.5); background: radial-gradient(120% 120% at 50% 100%, rgba(255, 179, 138, 0.16), rgba(10, 16, 40, 0.72)); }
.node-group.center li b::before { background: var(--peach); box-shadow: 0 0 12px var(--peach); }

.quote { margin: 0 0 20px; padding: 0 0 0 20px; border-left: 3px solid var(--lav); font-size: clamp(1.15rem, 2.6vw, 1.5rem); line-height: 1.6; }
.grid4 { display: grid; grid-template-columns: 1fr; gap: 14px; margin-top: 24px; }
.mini h3 { font-size: 1.08rem; margin-bottom: 6px; }
.principles .mini:nth-child(3) { border-color: rgba(92, 200, 255, 0.4); }

.beat { display: grid; grid-template-columns: 1fr; gap: 14px; }
@media (min-width: 600px) { .grid4, .beat { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (min-width: 1040px) { .grid4, .beat { grid-template-columns: repeat(4, minmax(0, 1fr)); } }
.beat span { display: inline-grid; place-items: center; width: 44px; height: 44px; border-radius: 14px; font-weight: 700; font-size: 1.3rem; background: linear-gradient(135deg, var(--blue), var(--lav)); margin-bottom: 12px; }
.beat h3 { font-size: 1rem; color: var(--muted); font-weight: 400; margin-bottom: 6px; }
.beat b { color: var(--text); }

.practice { list-style: none; counter-reset: p; margin: 0; padding: 0; display: grid; gap: 14px; }
.practice li { counter-increment: p; position: relative; padding: 22px 24px 22px 76px; background: var(--panel); border: 1px solid var(--line); border-radius: 22px; }
.practice li::before { content: counter(p); position: absolute; left: 24px; top: 20px; width: 36px; height: 36px; display: grid; place-items: center; border-radius: 50%; border: 1px solid var(--cyan); color: var(--cyan); font-weight: 700; }
.practice h3 { font-size: 1.2rem; margin-bottom: 4px; }
.practice p { margin: 0; color: var(--muted); }

.declaration { position: relative; margin-top: clamp(72px, 12vw, 140px); min-height: 70svh; display: grid; place-items: center; text-align: center; padding: 80px var(--gutter); overflow: hidden; }
.declaration video { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; opacity: 0.45; }
.declaration > div { position: relative; max-width: 820px; }
.big-quote { font-size: clamp(1.6rem, 4.6vw, 3rem); font-weight: 700; line-height: 1.45; margin: 0; text-shadow: 0 4px 30px rgba(7, 11, 26, 0.9); }
.sign { color: var(--peach); margin: 18px 0 0; }
.closing { color: var(--muted); margin: 28px auto 0; max-width: 560px; }

.foot { display: grid; gap: 10px; justify-items: center; text-align: center; padding: 48px var(--gutter) calc(40px + env(safe-area-inset-bottom, 0px)); border-top: 1px solid var(--line); color: var(--muted); }
.foot img { vertical-align: middle; border-radius: 6px; }
.foot b { color: var(--text); }
.foot-login { display: grid; gap: 4px; }
.foot-login a { color: var(--cyan); font-weight: 700; }
.foot-login span { font-size: 0.85rem; }

.js .reveal { opacity: 0; transform: translateY(24px); transition: opacity 0.8s ease, transform 0.8s ease; }
.js .reveal.in { opacity: 1; transform: none; }

@media (max-width: 760px) {
  body { font-size: 16px; }
  .top nav { display: none; }
  .login { margin-left: auto; min-height: 38px; padding: 0 14px; font-size: 0.86rem; }
  .wave-card, .wave-card:nth-child(2) { grid-template-columns: 1fr; }
  .wave-card:nth-child(2) video { order: 0; }
  .wave-card video { min-height: 0; aspect-ratio: 16 / 9; }
  .practice li { padding: 64px 20px 20px; }
  .practice li::before { left: 20px; top: 18px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .js .reveal { opacity: 1; transform: none; transition: none; }
  .scroll-hint { animation: none; }
}