:root { color-scheme: dark; --bg:#050712; --panel:#0b1325; --line:rgba(148,204,255,.17); --cyan:#8dfff3; --violet:#c6a7ff; --text:#f3f7ff; --muted:rgba(212,225,242,.68); }
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--text); background: var(--bg); font-family: Inter, Pretendard, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; }
body::before { position: fixed; z-index: -1; inset: 0; content: ""; background: linear-gradient(rgba(83,126,183,.055) 1px, transparent 1px), linear-gradient(90deg, rgba(83,126,183,.055) 1px, transparent 1px), radial-gradient(circle at 78% 8%, rgba(104,51,174,.22), transparent 34%); background-size: 54px 54px, 54px 54px, auto; }
a { color: inherit; }
.site-header { position: sticky; z-index: 10; top: 0; display: flex; align-items: center; justify-content: space-between; min-height: 64px; padding: 0 max(22px, calc((100vw - 1160px)/2)); border-bottom: 1px solid var(--line); background: rgba(5,7,18,.86); backdrop-filter: blur(18px); }
.wordmark { color: var(--cyan); font: 800 15px ui-monospace, SFMono-Regular, Menlo, monospace; letter-spacing: .16em; text-decoration: none; }
.site-header nav, footer nav { display: flex; align-items: center; gap: 22px; }
.site-header nav a, footer a { color: rgba(225,237,249,.62); font: 650 9px ui-monospace, SFMono-Regular, Menlo, monospace; letter-spacing: .1em; text-decoration: none; }
.site-header nav .nav-play { padding: 9px 14px; color: #041719; border-radius: 6px; background: var(--cyan); }
main { overflow: hidden; }
.hero { position: relative; display: grid; min-height: min(800px, calc(100vh - 64px)); align-items: center; }
.hero-art { position: absolute; z-index: -1; inset: 0; overflow: hidden; }
.hero-art img { position: absolute; top: 0; right: -4%; width: min(760px, 67vw); height: 100%; object-fit: cover; object-position: center; opacity: .44; filter: saturate(.9); mask-image: linear-gradient(90deg, transparent 0%, #000 42%, #000 100%); }
.hero::after { position: absolute; z-index: -1; inset: 0; content: ""; background: linear-gradient(90deg, rgba(3,5,14,.99) 0%, rgba(3,5,14,.82) 46%, rgba(3,5,14,.12) 100%), linear-gradient(0deg, var(--bg), transparent 34%); }
.hero-copy { width: min(1160px, calc(100% - 44px)); margin: 0 auto; }
.eyebrow { color: var(--cyan); font: 700 10px ui-monospace, SFMono-Regular, Menlo, monospace; letter-spacing: .18em; }
.hero h1 { max-width: 700px; margin: 18px 0; font-size: clamp(50px, 9vw, 104px); line-height: .95; letter-spacing: -.08em; }
.hero h1 em { color: var(--cyan); font-style: normal; }
.hero-lead { max-width: 580px; color: var(--muted); font-size: clamp(15px, 2vw, 19px); line-height: 1.75; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 28px; }
.hero-actions a, .primary, .secondary, .channel-card, .feedback-card a { text-decoration: none; }
.primary, .secondary, .share-link { display: inline-block; padding: 14px 19px; border: 1px solid rgba(255,255,255,.22); border-radius: 8px; font-size: 12px; font-weight: 800; }
.primary { color: #041719; border-color: transparent; background: linear-gradient(90deg, var(--cyan), #c8bcff); }
.secondary { color: var(--cyan); border-color: rgba(141,255,243,.45); background: rgba(22,70,84,.22); }
.share-link { color: rgba(237,246,255,.83); background: rgba(19,27,48,.62); cursor: pointer; }
.share-link:hover { border-color: rgba(141,255,243,.5); }
.share-status { min-height: 14px; margin: 10px 0 0; color: var(--cyan); font-size: 10px; }
.hero-note { margin-top: 16px; color: rgba(193,211,232,.44); font-size: 10px; }
.section { width: min(1160px, calc(100% - 44px)); margin: 0 auto; padding: 105px 0; border-top: 1px solid var(--line); }
.section-heading { display: flex; align-items: center; gap: 14px; margin-bottom: 34px; }
.section-heading span { color: var(--cyan); font: 700 10px ui-monospace, SFMono-Regular, Menlo, monospace; }
.section-heading h2 { margin: 0; font-size: 20px; letter-spacing: .09em; }
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.steps article { min-height: 210px; padding: 25px; border: 1px solid var(--line); border-radius: 12px; background: linear-gradient(145deg, rgba(21,35,61,.65), rgba(13,15,35,.5)); }
.steps b { color: var(--cyan); font: 650 9px ui-monospace, SFMono-Regular, Menlo, monospace; }
.steps h3 { margin: 36px 0 9px; font-size: 18px; }
.steps p, .section-lead, .feedback-card p, .proof p { color: var(--muted); font-size: 12px; line-height: 1.75; }
.feedback-card { display: grid; gap: 8px; margin-top: 18px; padding: 22px 24px; border: 1px solid rgba(141,255,243,.25); border-radius: 12px; background: linear-gradient(110deg, rgba(17,69,77,.35), rgba(33,25,67,.25)); }
.feedback-card strong { font-size: 17px; }
.feedback-card p { margin: 0; }
.feedback-card a { justify-self: start; margin-top: 4px; padding: 9px 13px; color: var(--cyan); border: 1px solid rgba(141,255,243,.3); border-radius: 6px; font-size: 10px; font-weight: 750; }
.section-lead { max-width: 650px; margin: -12px 0 27px; }
.channel-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.channel-card { position: relative; display: grid; min-height: 166px; align-content: end; gap: 6px; padding: 22px; border: 1px solid var(--line); border-radius: 12px; background: rgba(12,20,39,.72); transition: transform .18s ease, border-color .18s ease; }
.channel-card:hover { border-color: rgba(141,255,243,.55); transform: translateY(-3px); }
.channel-card.featured { border-color: rgba(141,255,243,.4); background: linear-gradient(145deg, rgba(18,74,82,.55), rgba(32,25,70,.48)); }
.channel-card span { color: var(--cyan); font: 700 9px ui-monospace, SFMono-Regular, Menlo, monospace; letter-spacing: .14em; }
.channel-card strong { font-size: 17px; }
.channel-card small { color: var(--muted); font-size: 10px; }
.channel-card i { position: absolute; top: 20px; right: 21px; color: var(--cyan); font-size: 22px; font-style: normal; }
.proof { display: grid; grid-template-columns: 1fr 1fr; gap: 65px; align-items: center; }
.proof img { width: 100%; max-height: 650px; object-fit: cover; border: 1px solid var(--line); border-radius: 12px; opacity: .86; }
.proof h2 { margin: 18px 0; font-size: clamp(32px, 5vw, 58px); line-height: 1.04; letter-spacing: -.06em; }
.proof .primary { margin-top: 13px; }
footer { display: flex; justify-content: space-between; width: min(1160px, calc(100% - 44px)); margin: 0 auto; padding: 28px 0 40px; color: rgba(196,213,230,.4); border-top: 1px solid var(--line); font-size: 9px; }
@media (max-width: 760px) {
  .site-header nav a:not(.nav-play) { display: none; }
  .hero { min-height: 720px; align-items: end; padding-bottom: 76px; }
  .hero-art img { top: 0; right: -46%; width: 125%; opacity: .34; mask-image: linear-gradient(0deg, #000 0%, #000 64%, transparent 100%); }
  .hero::after { background: linear-gradient(0deg, rgba(3,5,14,.98) 5%, rgba(3,5,14,.72) 62%, rgba(3,5,14,.18)); }
  .hero h1 { font-size: clamp(48px, 16vw, 72px); }
  .hero-lead { font-size: 14px; }
  .hero-actions { display: grid; }
  .hero-actions a { text-align: center; }
  .section { padding: 76px 0; }
  .steps, .channel-grid, .proof { grid-template-columns: 1fr; }
  .steps article { min-height: 0; }
  .proof { gap: 28px; }
  .proof img { max-height: 500px; }
  footer { display: grid; gap: 14px; }
  footer nav { flex-wrap: wrap; gap: 12px; }
}