/* FormulaHawk — site styles */
:root{
  --ink0:#0b0e14; --ink1:#0f1117; --ink2:#161a24; --ink3:#1d2230;
  --line:#262c3a; --fg:#edf0f7; --fg2:#969eb0; --fg3:#606a7a;
  --teal:#2dd4b2; --teal-d:#18a884; --amber:#f2b75c; --coral:#e8626a; --blue:#5ea4f2;
  --maxw:1120px; --radius:16px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  background:var(--ink1); color:var(--fg);
  font-family:'Lato',system-ui,-apple-system,Segoe UI,Roboto,sans-serif;
  line-height:1.65; -webkit-font-smoothing:antialiased;
  background-image:radial-gradient(1100px 600px at 78% -8%, rgba(45,212,178,.10), transparent 60%);
  background-repeat:no-repeat;
}
h1,h2,h3,h4{font-family:'Poppins',system-ui,sans-serif;line-height:1.15;letter-spacing:-.01em}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px}
.accent{color:var(--teal)}
.mono{font-family:'DejaVu Sans Mono',ui-monospace,SFMono-Regular,Menlo,monospace}

/* header */
header{position:sticky;top:0;z-index:50;backdrop-filter:blur(10px);
  background:rgba(15,17,23,.72);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;justify-content:space-between;height:68px}
.brand{display:flex;align-items:center;gap:12px;font-family:'Poppins';font-weight:700;font-size:22px}
.brand img{width:34px;height:34px}
.brand .hk{color:var(--teal)}
.nav ul{display:flex;gap:28px;list-style:none;align-items:center}
.nav a{color:var(--fg2);font-weight:600;font-size:15px;transition:color .15s}
.nav a:hover{color:var(--fg)}
.btn{display:inline-block;background:var(--teal);color:#08110e;font-family:'Poppins';font-weight:700;
  padding:11px 22px;border-radius:40px;font-size:15px;border:none;cursor:pointer;transition:transform .12s,box-shadow .12s}
.btn:hover{transform:translateY(-1px);box-shadow:0 8px 24px rgba(45,212,178,.28)}
.btn.ghost{background:transparent;color:var(--fg);border:1px solid var(--line)}
.btn.ghost:hover{border-color:var(--teal);box-shadow:none}

/* hero */
.hero{padding:96px 0 72px;text-align:center}
.eyebrow{font-family:'Lato';font-weight:900;letter-spacing:.22em;text-transform:uppercase;
  color:var(--fg3);font-size:13px;margin-bottom:22px}
.hero h1{font-size:clamp(38px,6vw,68px);font-weight:700;margin-bottom:22px}
.hero p.lead{font-size:clamp(18px,2.4vw,23px);color:var(--fg2);max-width:640px;margin:0 auto 34px}
.hero .cta{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}
.pill{display:inline-flex;gap:8px;align-items:center;background:var(--ink2);border:1px solid var(--line);
  color:var(--fg2);padding:7px 16px;border-radius:40px;font-size:14px;font-weight:600;margin-top:40px}
.pill b{color:var(--teal)}

/* sections */
section{padding:64px 0}
.sec-head{text-align:center;margin-bottom:48px}
.sec-head h2{font-size:clamp(28px,4vw,40px);margin-bottom:12px}
.sec-head p{color:var(--fg2);max-width:560px;margin:0 auto;font-size:17px}

/* cards */
.grid{display:grid;gap:22px}
.grid.g3{grid-template-columns:repeat(3,1fr)}
.grid.g2{grid-template-columns:repeat(2,1fr)}
.card{background:var(--ink2);border:1px solid var(--line);border-radius:var(--radius);padding:28px;transition:transform .15s,border-color .15s}
.card:hover{transform:translateY(-3px);border-color:#33405a}
.card h3{font-size:20px;margin-bottom:10px}
.card p{color:var(--fg2);font-size:15px}
.card .ic{width:46px;height:46px;border-radius:12px;background:rgba(45,212,178,.12);display:flex;align-items:center;justify-content:center;margin-bottom:16px;font-size:22px}

/* video cards */
.vid{background:var(--ink2);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:transform .15s,border-color .15s}
.vid:hover{transform:translateY(-3px);border-color:#33405a}
.vid .thumb{aspect-ratio:16/9;width:100%;object-fit:cover;background:var(--ink3)}
.vid .body{padding:18px 20px}
.vid .body h3{font-size:17px;margin-bottom:6px}
.vid .body span{color:var(--fg3);font-size:13px;font-weight:700;text-transform:uppercase;letter-spacing:.05em}

/* newsletter */
.news{background:linear-gradient(180deg,var(--ink2),var(--ink1));border:1px solid var(--line);
  border-radius:24px;padding:52px 40px;text-align:center;max-width:760px;margin:0 auto}
.news h2{font-size:clamp(26px,3.5vw,36px);margin-bottom:12px}
.news p{color:var(--fg2);margin-bottom:26px}
.news form{display:flex;gap:10px;max-width:460px;margin:0 auto;flex-wrap:wrap;justify-content:center}
.news input{flex:1;min-width:220px;background:var(--ink1);border:1px solid var(--line);color:var(--fg);
  padding:13px 18px;border-radius:40px;font-size:15px;font-family:inherit}
.news input:focus{outline:none;border-color:var(--teal)}
.news small{display:block;color:var(--fg3);margin-top:16px;font-size:13px}

/* article */
.article{max-width:760px;margin:0 auto;padding:56px 24px}
.article .meta{color:var(--fg3);font-size:14px;font-weight:700;text-transform:uppercase;letter-spacing:.06em;margin-bottom:16px}
.article h1{font-size:clamp(30px,5vw,46px);margin-bottom:20px}
.article .video{aspect-ratio:16/9;width:100%;border-radius:var(--radius);overflow:hidden;margin:32px 0;border:1px solid var(--line)}
.article .video iframe{width:100%;height:100%;border:0}
.article h2{font-size:28px;margin:40px 0 14px}
.article h3{font-size:21px;margin:28px 0 10px}
.article p{color:#cfd5e2;margin-bottom:18px;font-size:17.5px}
.article ul,.article ol{color:#cfd5e2;margin:0 0 18px 22px}
.article li{margin-bottom:8px}
.article table{width:100%;border-collapse:collapse;margin:24px 0;font-size:15px}
.article th,.article td{border:1px solid var(--line);padding:11px 14px;text-align:left}
.article th{background:var(--ink2);font-family:'Poppins';color:var(--fg)}
.article .callout{background:rgba(242,183,92,.08);border:1px solid rgba(242,183,92,.3);border-radius:12px;padding:18px 22px;margin:24px 0;color:#e9d9bd}
.disclosure{color:var(--fg3);font-size:13px;border-top:1px solid var(--line);margin-top:40px;padding-top:20px}

/* footer */
footer{border-top:1px solid var(--line);padding:44px 0 60px;margin-top:40px;color:var(--fg3)}
.foot{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:20px}
.foot .brand{font-size:19px;color:var(--fg)}
.foot ul{display:flex;gap:22px;list-style:none;flex-wrap:wrap}
.foot a{color:var(--fg2);font-size:14px}
.foot a:hover{color:var(--teal)}

@media(max-width:820px){
  .grid.g3,.grid.g2{grid-template-columns:1fr}
  .nav ul{display:none}
  .hero{padding:64px 0 48px}
}