:root {
  --bg: #0a0e1a;
  --bg-soft: #111729;
  --card: #151c30;
  --card-hover: #1b2440;
  --text: #eef1fa;
  --muted: #9aa6c8;
  --accent: #7b8cff;
  --accent-2: #3fe0c5;
  --accent-3: #ff7bc2;
  --border: rgba(255, 255, 255, 0.09);
  --radius: 18px;
  --shadow: 0 18px 50px rgba(0, 0, 0, 0.45);
  --max: 1120px;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: "Segoe UI", -apple-system, BlinkMacSystemFont, Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
.container { max-width: var(--max); margin: 0 auto; padding: 0 22px; }
.narrow { max-width: 800px; }

/* ---------- Header ---------- */
header {
  position: sticky; top: 0; z-index: 60;
  background: rgba(10, 14, 26, 0.82);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
}
.nav { display: flex; align-items: center; justify-content: space-between; height: 66px; }
.brand { display: flex; align-items: center; gap: 11px; font-weight: 800; font-size: 19px; color: var(--text); }
.brand:hover { text-decoration: none; }
.brand .logo {
  width: 36px; height: 36px; border-radius: 11px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  display: grid; place-items: center; font-size: 19px;
}
.nav-links { display: flex; align-items: center; gap: 26px; }
.nav-links a { color: var(--muted); font-size: 15px; font-weight: 600; }
.nav-links a:hover { color: var(--text); text-decoration: none; }
.nav-links a.active { color: var(--text); }
.menu-btn { display: none; background: none; border: none; color: var(--text); font-size: 26px; cursor: pointer; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 13px 26px; border-radius: 999px;
  font-weight: 700; font-size: 15px; cursor: pointer;
  border: 1px solid transparent;
}
.btn-primary { background: linear-gradient(135deg, var(--accent), var(--accent-2)); color: #05131a; }
.btn-primary:hover { text-decoration: none; opacity: 0.93; transform: translateY(-1px); }
.btn-ghost { background: transparent; border-color: var(--border); color: var(--text); }
.btn-ghost:hover { background: var(--bg-soft); text-decoration: none; }

/* ---------- Hero ---------- */
.hero { position: relative; padding: 96px 0 76px; overflow: hidden; }
.hero::before {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background:
    radial-gradient(620px 320px at 12% 8%, rgba(123, 140, 255, 0.30), transparent 60%),
    radial-gradient(520px 300px at 88% 24%, rgba(63, 224, 197, 0.20), transparent 60%),
    radial-gradient(420px 260px at 60% 90%, rgba(255, 123, 194, 0.14), transparent 60%);
}
.hero-inner { position: relative; max-width: 780px; }
.eyebrow {
  display: inline-block; font-size: 13px; letter-spacing: 1.2px; text-transform: uppercase;
  color: var(--accent-2); border: 1px solid var(--border); border-radius: 999px;
  padding: 7px 15px; margin-bottom: 24px;
}
.hero h1 { font-size: clamp(34px, 5.4vw, 56px); line-height: 1.08; margin-bottom: 20px; letter-spacing: -0.5px; }
.grad { background: linear-gradient(120deg, var(--accent), var(--accent-2) 55%, var(--accent-3)); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; }
.hero .lead { font-size: 19px; color: var(--muted); margin-bottom: 32px; }
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }

/* ---------- Stats ---------- */
.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin-top: 60px; }
.stat { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); padding: 24px; text-align: center; }
.stat .num { font-size: 32px; font-weight: 800; }
.stat .num.grad { display: inline-block; }
.stat .label { color: var(--muted); font-size: 14px; margin-top: 4px; }

/* ---------- Sections ---------- */
section { padding: 68px 0; }
.section-head { margin-bottom: 38px; max-width: 720px; }
.section-head h2 { font-size: clamp(27px, 3.6vw, 38px); margin-bottom: 13px; letter-spacing: -0.4px; }
.section-head p { color: var(--muted); font-size: 17px; }
.tac { text-align: center; margin-left: auto; margin-right: auto; }

/* ---------- Category blocks ---------- */
.cat-block { margin-bottom: 52px; }
.cat-title { display: flex; align-items: center; gap: 12px; font-size: 22px; margin-bottom: 6px; }
.cat-title .dot { width: 11px; height: 11px; border-radius: 50%; background: var(--accent-2); box-shadow: 0 0 14px var(--accent-2); }
.cat-desc { color: var(--muted); font-size: 15px; margin-bottom: 20px; max-width: 760px; }

/* ---------- App grid ---------- */
.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(250px, 1fr)); gap: 18px; }
.app-card {
  background: var(--card); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 22px; transition: 0.18s; position: relative; overflow: hidden;
}
.app-card::after {
  content: ""; position: absolute; inset: 0 0 auto 0; height: 3px;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  opacity: 0; transition: 0.18s;
}
.app-card:hover { background: var(--card-hover); transform: translateY(-4px); box-shadow: var(--shadow); }
.app-card:hover::after { opacity: 1; }
a.app-card { display: block; color: inherit; }
a.app-card:hover { text-decoration: none; }
a.app-card h3 { color: var(--text); }
a.app-card .store {
  display: inline-flex; align-items: center; gap: 6px;
  margin-top: 14px; font-size: 13px; font-weight: 700; color: var(--accent-2);
}
a.app-card:hover .store { text-decoration: underline; }
.app-card .icon {
  width: 50px; height: 50px; border-radius: 13px; display: grid; place-items: center;
  font-size: 25px; margin-bottom: 14px;
  background: linear-gradient(135deg, rgba(123, 140, 255, 0.28), rgba(63, 224, 197, 0.20));
}
.app-card h3 { font-size: 18px; margin-bottom: 7px; }
.app-card p { color: var(--muted); font-size: 14px; line-height: 1.55; }

/* ---------- Feature row ---------- */
.features { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.feature { background: var(--bg-soft); border: 1px solid var(--border); border-radius: var(--radius); padding: 28px; }
.feature .fi { font-size: 30px; margin-bottom: 12px; }
.feature h3 { font-size: 19px; margin-bottom: 8px; }
.feature p { color: var(--muted); font-size: 15px; }

/* ---------- About ---------- */
.about-grid { display: grid; grid-template-columns: 320px 1fr; gap: 44px; align-items: start; }
.about-card { background: linear-gradient(135deg, var(--card), var(--bg-soft)); border: 1px solid var(--border); border-radius: 24px; padding: 40px; text-align: center; position: sticky; top: 90px; }
.about-card .avatar { width: 120px; height: 120px; border-radius: 50%; margin: 0 auto 18px; background: linear-gradient(135deg, var(--accent), var(--accent-2)); display: grid; place-items: center; font-size: 52px; }
.about-card h3 { font-size: 23px; }
.about-card .role { color: var(--muted); margin-top: 4px; font-size: 15px; }

/* ---------- Prose (blog & docs) ---------- */
.prose { max-width: 760px; }
.prose h1 { font-size: clamp(28px, 4vw, 42px); line-height: 1.15; margin-bottom: 14px; letter-spacing: -0.5px; }
.prose .meta { color: var(--muted); font-size: 14px; margin-bottom: 30px; }
.prose h2 { font-size: 26px; margin: 38px 0 14px; letter-spacing: -0.3px; }
.prose h3 { font-size: 20px; margin: 28px 0 10px; }
.prose p { color: #c8d0e8; font-size: 17px; margin-bottom: 16px; }
.prose ul, .prose ol { color: #c8d0e8; font-size: 17px; padding-left: 24px; margin: 12px 0 18px; }
.prose li { margin-bottom: 8px; }
.prose blockquote { border-left: 3px solid var(--accent); padding: 6px 0 6px 20px; margin: 22px 0; color: var(--muted); font-style: italic; }
.prose strong { color: var(--text); }
.prose a { color: var(--accent-2); }
.lead-p { font-size: 19px !important; color: var(--muted) !important; }

/* ---------- Blog list ---------- */
.post-list { display: grid; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); gap: 22px; }
.post-card { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); padding: 28px; transition: 0.18s; }
.post-card:hover { background: var(--card-hover); transform: translateY(-4px); box-shadow: var(--shadow); }
.post-card .ptag { font-size: 12px; font-weight: 700; letter-spacing: 0.5px; text-transform: uppercase; color: var(--accent-2); }
.post-card h3 { font-size: 21px; margin: 10px 0 10px; }
.post-card h3 a { color: var(--text); }
.post-card h3 a:hover { color: var(--accent); text-decoration: none; }
.post-card p { color: var(--muted); font-size: 15px; }
.post-card .read { display: inline-block; margin-top: 14px; font-weight: 600; font-size: 14px; }

/* ---------- Contact ---------- */
.contact-box { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); padding: 34px; max-width: 560px; }
.contact-box .email { font-size: 22px; font-weight: 800; color: var(--accent-2); word-break: break-all; }

/* ---------- CTA band ---------- */
.cta { background: linear-gradient(135deg, rgba(123,140,255,0.16), rgba(63,224,197,0.12)); border: 1px solid var(--border); border-radius: 26px; padding: 48px; text-align: center; }
.cta h2 { font-size: clamp(24px, 3.4vw, 34px); margin-bottom: 12px; }
.cta p { color: var(--muted); font-size: 17px; margin-bottom: 24px; }

/* ---------- Footer ---------- */
footer { border-top: 1px solid var(--border); padding: 46px 0; margin-top: 50px; }
.footer-inner { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 22px; align-items: center; }
.footer-links { display: flex; gap: 22px; flex-wrap: wrap; }
.footer-links a { color: var(--muted); font-size: 14px; }
.footer-copy { color: var(--muted); font-size: 14px; }

/* ---------- Breadcrumb ---------- */
.crumb { color: var(--muted); font-size: 14px; margin-bottom: 26px; }
.crumb a { color: var(--accent-2); }

@media (max-width: 860px) {
  .stats { grid-template-columns: repeat(2, 1fr); }
  .features { grid-template-columns: 1fr; }
  .about-grid { grid-template-columns: 1fr; }
  .about-card { position: static; }
  .nav-links {
    display: none; position: absolute; top: 66px; left: 0; right: 0;
    flex-direction: column; align-items: flex-start;
    background: var(--bg-soft); padding: 18px 22px;
    border-bottom: 1px solid var(--border); gap: 16px;
  }
  .nav-links.open { display: flex; }
  .menu-btn { display: block; }
}