:root{
  --bg:#0b1020; --panel:#121a33; --fg:#f4f7ff; --muted:#9fb0d6;
  --accent:#ff5a5f; --accent2:#37d0c8; --line:rgba(255,255,255,.10);
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif;
  background:var(--bg); color:var(--fg); line-height:1.6; min-height:100vh;
}
a{color:inherit;text-decoration:none}
.container{max-width:1080px;margin:0 auto;padding:0 24px}

/* Nav */
header.nav{position:sticky;top:0;z-index:10;backdrop-filter:blur(10px);
  background:rgba(11,16,32,.78);border-bottom:1px solid var(--line)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:66px}
.brand{font-weight:800;font-size:1.3rem;letter-spacing:-.01em}
.brand span{color:var(--accent)}
nav.links{display:flex;gap:26px}
nav.links a{color:var(--muted);font-weight:500;font-size:.95rem;transition:color .15s}
nav.links a:hover,nav.links a.active{color:var(--fg)}

/* Hero */
.hero{position:relative;overflow:hidden;padding:96px 0 84px;
  background:radial-gradient(1000px 500px at 75% -10%,rgba(55,208,200,.16),transparent 60%),
             radial-gradient(800px 460px at 0% 120%,rgba(255,90,95,.16),transparent 55%)}
.hero .badge{display:inline-block;font-size:.78rem;letter-spacing:.14em;text-transform:uppercase;
  color:var(--accent2);border:1px solid rgba(55,208,200,.35);border-radius:999px;padding:6px 14px;margin-bottom:22px}
.hero h1{font-size:clamp(2.4rem,6.5vw,4rem);line-height:1.03;font-weight:800;letter-spacing:-.02em;max-width:14ch}
.hero p{color:var(--muted);font-size:clamp(1rem,2.2vw,1.2rem);margin:20px 0 30px;max-width:52ch}
.track{position:absolute;inset:0;z-index:-1;opacity:.5}

/* Buttons */
.btn{display:inline-block;background:var(--accent);color:#fff;padding:13px 24px;border-radius:12px;
  font-weight:600;transition:transform .12s,opacity .12s;border:0;cursor:pointer;font-size:1rem}
.btn:hover{transform:translateY(-1px);opacity:.95}
.btn.ghost{background:transparent;border:1px solid var(--line);color:var(--fg);margin-left:10px}

/* Sections */
section.block{padding:64px 0;border-top:1px solid var(--line)}
.eyebrow{color:var(--accent2);text-transform:uppercase;letter-spacing:.12em;font-size:.78rem;font-weight:700}
h2{font-size:clamp(1.7rem,4vw,2.4rem);font-weight:800;letter-spacing:-.01em;margin:8px 0 6px}
.lead{color:var(--muted);max-width:60ch;margin-bottom:36px}

/* Cards */
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:20px}
.card{background:var(--panel);border:1px solid var(--line);border-radius:16px;padding:24px;transition:transform .15s,border-color .15s}
.card:hover{transform:translateY(-3px);border-color:rgba(55,208,200,.35)}
.card h3{font-size:1.2rem;margin-bottom:6px}
.card .meta{color:var(--accent2);font-size:.82rem;font-weight:600;text-transform:uppercase;letter-spacing:.08em;margin-bottom:12px}
.card p{color:var(--muted);font-size:.95rem}
.rating{color:var(--accent);font-weight:700;font-size:1.05rem}

/* Signup */
.signup{display:flex;gap:10px;flex-wrap:wrap;margin-top:8px}
.signup input{background:rgba(255,255,255,.06);border:1px solid var(--line);color:var(--fg);
  padding:13px 16px;border-radius:12px;font-size:1rem;width:280px;max-width:100%}
.signup input::placeholder{color:var(--muted)}
.note{color:var(--muted);font-size:.82rem;margin-top:12px}

/* Prose */
.prose p{color:var(--muted);margin-bottom:16px;max-width:66ch}
.prose h2{margin-top:12px}

/* Footer */
footer.site{border-top:1px solid var(--line);padding:32px 0;color:var(--muted);font-size:.88rem;margin-top:24px}
.foot-inner{display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px}
footer.site a:hover{color:var(--fg)}