:root {
  --bg: #080a14;
  --bg-alt: #0d1020;
  --panel: #12162a;
  --text: #eaf0fb;
  --muted: #94a0bd;
  --line: #1c2440;
  --accent: #cfd9ea;
  --accent-2: #9aa8c2;
  --grad: linear-gradient(120deg, #eef2f9, #b9c4d8);
  --btn-ink: #0b1020;
  --radius: 16px;
  --maxw: 1080px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

.container { max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }

a { color: inherit; text-decoration: none; }

h1, h2, h3 { line-height: 1.15; letter-spacing: -0.02em; margin: 0 0 .5em; }
h1 { font-size: clamp(2.4rem, 6vw, 4.4rem); font-weight: 800; }
h2 { font-size: clamp(1.7rem, 3.5vw, 2.4rem); font-weight: 700; }
h3 { font-size: 1.15rem; font-weight: 600; }

/* Sale banner */
.sale-banner {
  display: flex; flex-wrap: wrap; gap: 10px 18px;
  align-items: center; justify-content: center;
  padding: 10px 18px;
  background: var(--grad);
  color: var(--btn-ink);
  font-size: .92rem;
  text-align: center;
}
.sale-banner__text strong { font-weight: 800; }
.sale-banner__cta {
  font-weight: 700;
  border-bottom: 1px solid rgba(11,16,32,.5);
  white-space: nowrap;
}
.sale-banner__cta:hover { border-color: var(--btn-ink); }

/* Header */
.site-header {
  position: sticky; top: 0; z-index: 20;
  background: rgba(8,10,20,.72);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
}
.site-header__inner { display: flex; align-items: center; justify-content: space-between; height: 66px; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 800; font-size: 1.05rem; }
.brand__mark { width: 26px; height: 26px; display: block; flex: none; filter: drop-shadow(0 0 8px rgba(207,217,234,.28)); }
.brand__accent { background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.nav { display: flex; gap: 26px; font-size: .92rem; color: var(--muted); }
.nav a:hover { color: var(--text); }

/* Hero */
.hero { position: relative; overflow: hidden; padding: clamp(70px, 12vw, 140px) 0 clamp(60px, 9vw, 110px); }
.eyebrow { text-transform: uppercase; letter-spacing: .18em; font-size: .78rem; color: var(--accent); margin: 0 0 18px; font-weight: 600; }
.lede { font-size: clamp(1.05rem, 2vw, 1.28rem); color: var(--muted); max-width: 48ch; }
.lede strong { color: var(--text); }
.hero__cta { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 34px; }

.hero__wave { position: absolute; inset: 0; z-index: -1; opacity: .5; pointer-events: none; }
.wave-grid {
  position: absolute; right: -8%; top: -18%;
  width: 66vw; height: 66vw; max-width: 720px; max-height: 720px;
  background:
    radial-gradient(circle at 35% 30%, rgba(207,217,234,.13), transparent 58%),
    radial-gradient(circle at 68% 70%, rgba(154,168,194,.10), transparent 58%);
  filter: blur(30px);
  border-radius: 50%;
  animation: float 15s ease-in-out infinite;
}
@keyframes float { 0%,100% { transform: translateY(0) scale(1); } 50% { transform: translateY(-22px) scale(1.05); } }

/* Starfield */
.hero__sky { position: absolute; inset: 0; z-index: -1; overflow: hidden; pointer-events: none; }
.stars { position: absolute; inset: -60% -20%; background-repeat: repeat; }
.stars--far {
  background-image:
    radial-gradient(1px 1px at 40px 60px, rgba(255,255,255,.75), transparent),
    radial-gradient(1px 1px at 130px 170px, rgba(255,255,255,.5), transparent),
    radial-gradient(1.4px 1.4px at 210px 90px, rgba(255,255,255,.65), transparent),
    radial-gradient(1px 1px at 90px 240px, rgba(255,255,255,.45), transparent),
    radial-gradient(1.2px 1.2px at 280px 210px, rgba(201,214,240,.6), transparent),
    radial-gradient(1px 1px at 330px 120px, rgba(255,255,255,.5), transparent);
  background-size: 340px 340px;
  animation: twinkle 6.5s ease-in-out infinite alternate;
}
.stars--near {
  background-image:
    radial-gradient(1.6px 1.6px at 70px 50px, #ffffff, transparent),
    radial-gradient(2px 2px at 190px 130px, rgba(255,255,255,.9), transparent),
    radial-gradient(1.6px 1.6px at 320px 230px, rgba(214,226,248,.95), transparent),
    radial-gradient(1.2px 1.2px at 250px 70px, rgba(255,255,255,.75), transparent),
    radial-gradient(1.8px 1.8px at 110px 300px, rgba(255,255,255,.8), transparent);
  background-size: 460px 460px;
  animation: twinkle 4.5s ease-in-out infinite alternate-reverse;
}
/* the river of stars — a soft diagonal band of light */
.river {
  position: absolute; left: -15%; right: -15%; top: 34%;
  height: 300px; transform: rotate(-13deg);
  background: linear-gradient(90deg, transparent, rgba(201,214,240,.05) 20%, rgba(201,214,240,.12) 50%, rgba(201,214,240,.05) 80%, transparent);
  filter: blur(8px);
}
.river::after {
  content: ""; position: absolute; inset: 0;
  background-image:
    radial-gradient(1.4px 1.4px at 60px 140px, rgba(255,255,255,.9), transparent),
    radial-gradient(1.6px 1.6px at 220px 120px, rgba(214,226,248,.95), transparent),
    radial-gradient(1.2px 1.2px at 380px 160px, rgba(255,255,255,.8), transparent),
    radial-gradient(1.6px 1.6px at 520px 130px, rgba(255,255,255,.9), transparent),
    radial-gradient(1.3px 1.3px at 680px 150px, rgba(214,226,248,.9), transparent),
    radial-gradient(1.5px 1.5px at 840px 120px, rgba(255,255,255,.85), transparent);
  background-size: 900px 300px; background-repeat: repeat-x;
  animation: twinkle 3.8s ease-in-out infinite alternate;
}
@keyframes twinkle { from { opacity: .45; } to { opacity: 1; } }
@media (prefers-reduced-motion: reduce) {
  .stars--far, .stars--near, .river::after, .wave-grid { animation: none; }
}

/* Buttons */
.btn { display: inline-flex; align-items: center; gap: 8px; padding: 12px 22px; border-radius: 999px; font-weight: 600; font-size: .95rem; transition: transform .15s ease, box-shadow .15s ease, background .15s ease; }
.btn--primary { background: var(--grad); color: var(--btn-ink); box-shadow: 0 8px 30px rgba(207,217,234,.16); }
.btn--primary:hover { transform: translateY(-2px); box-shadow: 0 12px 40px rgba(154,168,194,.22); }
.btn--ghost { border: 1px solid var(--line); color: var(--text); }
.btn--ghost:hover { border-color: var(--accent); }
.btn--lg { padding: 15px 30px; font-size: 1.05rem; }

/* Sections */
.section { padding: clamp(56px, 9vw, 100px) 0; }
.section--alt { background: var(--bg-alt); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.grid-2 { display: grid; grid-template-columns: 1.1fr .9fr; gap: 48px; align-items: start; }
.section p { color: var(--muted); }
.section p strong { color: var(--text); }

/* Feature list */
.feature-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 14px; }
.feature-list li { background: var(--panel); border: 1px solid var(--line); border-radius: 12px; padding: 16px 18px; color: var(--muted); }
.feature-list__k { display: block; color: var(--text); font-weight: 700; font-size: .95rem; margin-bottom: 2px; }

/* Steps */
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; margin-top: 36px; }
.step { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); padding: 24px; }
.step__num { font-family: ui-monospace, "SF Mono", Menlo, monospace; font-size: .85rem; color: var(--accent); }
.step h3 { margin-top: 10px; }
.step p { color: var(--muted); font-size: .95rem; margin: 0; }

/* Cards */
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-top: 36px; }
.card { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); padding: 26px; transition: transform .15s ease, border-color .15s ease; }
.card:hover { transform: translateY(-4px); border-color: var(--accent-2); }
.card p { margin: 0; font-size: .95rem; }
.section__intro { color: var(--muted); max-width: 60ch; margin: 0; font-size: 1.05rem; }

/* Acquire */
.section--acquire { background: var(--bg-alt); border-top: 1px solid var(--line); }
.acquire { text-align: center; max-width: 640px; }
.acquire__lede { font-size: 1.1rem; margin-bottom: 28px; }
.acquire .btn { margin-top: 6px; }
.acquire__contact { margin-top: 18px; font-size: .92rem; color: var(--muted); }
.acquire__contact a { color: var(--accent); border-bottom: 1px solid rgba(207,217,234,.4); }

/* Article / prose */
.article { padding: clamp(48px, 8vw, 90px) 0 clamp(56px, 9vw, 100px); }
.article .container { max-width: 760px; }
.breadcrumb { font-size: .85rem; color: var(--muted); margin-bottom: 26px; }
.breadcrumb a { color: var(--accent); }
.breadcrumb a:hover { text-decoration: underline; }
.article__title { font-size: clamp(2rem, 5vw, 3.1rem); font-weight: 800; }
.article__deck { font-size: 1.15rem; color: var(--muted); margin: 0 0 8px; }
.article__meta { font-size: .82rem; color: var(--muted); letter-spacing: .04em; text-transform: uppercase; margin-bottom: 40px; }
.prose h2 { font-size: 1.6rem; margin-top: 48px; }
.prose h3 { font-size: 1.2rem; margin-top: 32px; }
.prose p { color: #c6cee0; margin: 0 0 18px; }
.prose ul { color: #c6cee0; padding-left: 22px; margin: 0 0 18px; }
.prose li { margin-bottom: 8px; }
.prose strong { color: var(--text); }
.prose a:not(.btn) { color: var(--accent); border-bottom: 1px solid rgba(207,217,234,.35); }
.prose a:not(.btn):hover { border-color: var(--accent); }
.prose a.btn { border-bottom: none; }
.prose a.btn--primary { color: var(--btn-ink); }
.pull { border-left: 3px solid var(--accent); padding: 6px 0 6px 20px; margin: 28px 0; color: var(--text); font-size: 1.15rem; font-weight: 500; }
.article-cta { margin-top: 48px; padding: 30px; background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); text-align: center; }
.article-cta h3 { margin-top: 0; }
.article-cta p { color: var(--muted); margin: 0 0 18px; }

/* Footer */
.site-footer { border-top: 1px solid var(--line); padding: 30px 0; font-size: .85rem; color: var(--muted); }
.site-footer__inner { display: flex; flex-wrap: wrap; gap: 10px; justify-content: space-between; }

/* Responsive */
@media (max-width: 860px) {
  .nav { display: none; }
  .grid-2 { grid-template-columns: 1fr; gap: 32px; }
  .steps { grid-template-columns: repeat(2, 1fr); }
  .cards { grid-template-columns: 1fr; }
}
@media (max-width: 480px) {
  .steps { grid-template-columns: 1fr; }
}