:root{
  --bg:#0a0a12; --panel:#16131f; --panel2:#1d1830; --line:#2c2440;
  --txt:#f0e9f6; --dim:#9a8fb0; --pur:#8b6cff; --pur2:#b89bff;
  --grn:#46e08a; --amb:#ffc34d; --red:#ff5d6c; --cyan:#43d6e0;
  --pink:#ff2e97; --pink2:#ff79c6; --glow:rgba(255,46,151,.5);
  --maxw:1080px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;color:var(--txt);font:15px/1.6 -apple-system,Segoe UI,Roboto,sans-serif;
  background:
    radial-gradient(900px 520px at 82% -5%, rgba(255,46,151,.16) 0%, transparent 60%),
    radial-gradient(1000px 620px at 10% 110%, rgba(139,108,255,.18) 0%, transparent 60%),
    radial-gradient(1200px 700px at 50% -260px,#221634 0%,var(--bg) 62%);
  min-height:100vh;}
.bg{position:fixed;inset:0;z-index:-1;pointer-events:none;
  background:radial-gradient(125% 80% at 50% 0%, transparent 55%, rgba(8,8,16,.5) 100%)}
a{color:inherit;text-decoration:none}
h1,h2,h3{line-height:1.2}

/* header */
header{position:sticky;top:0;z-index:10;display:flex;align-items:center;gap:20px;
  padding:14px 26px;border-bottom:1px solid var(--line);
  background:rgba(11,9,18,.82);backdrop-filter:blur(10px)}
.logo{font-size:21px;font-weight:900;letter-spacing:.3px;display:inline-flex;align-items:center;gap:6px}
.logo .gg{background:linear-gradient(90deg,var(--pink),var(--cyan));-webkit-background-clip:text;background-clip:text;color:transparent}
.logo .spark{filter:drop-shadow(0 0 8px var(--glow))}
.logo.small{font-size:18px}
nav{display:flex;gap:20px;margin-left:8px;flex:1}
nav a{color:var(--dim);font-size:14px;font-weight:600}
nav a:hover{color:var(--txt)}
nav a.navpro{color:var(--pur2)}
.ticker{font-size:12px;color:var(--dim);font-family:ui-monospace,Menlo,monospace;white-space:nowrap;
  overflow:hidden;max-width:42vw}
.ticker b{color:var(--grn)} .ticker .dn{color:var(--red)}

/* hero */
.hero{max-width:var(--maxw);margin:0 auto;padding:64px 26px 26px;text-align:center}
.hero h1{font-size:clamp(30px,5vw,52px);margin:0 0 14px;
  background:linear-gradient(90deg,var(--pur2),var(--pink2),var(--cyan));-webkit-background-clip:text;background-clip:text;color:transparent}
.lede{max-width:680px;margin:0 auto 24px;color:var(--dim);font-size:17px}
.herobtns{display:flex;gap:12px;justify-content:center;flex-wrap:wrap;margin-bottom:36px}
.btn{display:inline-block;border:1px solid var(--line);border-radius:10px;padding:12px 22px;
  font-weight:700;font-size:15px;cursor:pointer;background:var(--panel);color:var(--txt);transition:.15s}
.btn.primary{border:none;background:linear-gradient(90deg,var(--pur),var(--pink));color:#fff;
  box-shadow:0 8px 24px rgba(255,46,151,.28)}
.btn.primary:hover{filter:brightness(1.08);transform:translateY(-1px)}
.btn.ghost:hover{border-color:var(--pur)}
.btn.small{padding:8px 14px;font-size:13px;border-color:var(--pur);color:var(--pur2)}
.btn.small:hover{background:rgba(139,108,255,.12)}

/* tabs */
.tabs{display:inline-flex;gap:6px;background:var(--panel);border:1px solid var(--line);
  border-radius:14px;padding:6px}
.tab{border:none;background:transparent;color:var(--dim);font-weight:700;font-size:14px;
  padding:10px 16px;border-radius:10px;cursor:pointer}
.tab.active{background:linear-gradient(180deg,var(--panel2),#15101f);color:var(--txt);
  box-shadow:inset 0 0 0 1px var(--line)}

/* calculators */
main{max-width:760px;margin:18px auto 0;padding:0 26px}
.panel{background:linear-gradient(180deg,var(--panel),#11101a);border:1px solid var(--line);
  border-radius:18px;padding:26px;position:relative;overflow:hidden}
.panel::before{content:"";position:absolute;inset:0 0 auto 0;height:3px;
  background:linear-gradient(90deg,var(--pur),var(--pink),var(--cyan))}
.panel h2{margin:0 0 6px;font-size:22px}
.sub{color:var(--dim);font-size:14px;margin:0 0 20px}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:14px}
label{display:flex;flex-direction:column;gap:6px;font-size:12px;color:var(--dim);
  text-transform:uppercase;letter-spacing:.5px;font-weight:700}
input,select{background:#0b0e16;border:1px solid var(--line);border-radius:10px;padding:11px 13px;
  color:var(--txt);font-size:15px;font-family:ui-monospace,Menlo,monospace}
input:focus,select:focus{outline:none;border-color:var(--pur)}
.live{color:var(--grn);text-transform:none;font-weight:600}
.hidden{display:none!important}
.out{margin-top:22px;border-top:1px solid var(--line);padding-top:20px;
  display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.out .o{background:#0e1119;border:1px solid var(--line);border-radius:12px;padding:14px}
.out .o b{font-size:24px;font-weight:800;display:block}
.out .o span{color:var(--dim);font-size:11px;text-transform:uppercase;letter-spacing:.5px}
.out .o.good b{color:var(--grn)} .out .o.bad b{color:var(--red)} .out .o.key b{color:var(--pur2)}
.out .note{grid-column:1/-1;color:var(--dim);font-size:13px}

/* sections */
section.eco,section.gear,section.pro,section.learn{max-width:var(--maxw);margin:64px auto;padding:0 26px}
.ecohead{text-align:center;margin-bottom:30px}
.ecohead h2,.gear h2,.learn h2{font-size:28px;margin:0 0 8px}
.ecohead p{color:var(--dim);max-width:640px;margin:0 auto}
.ecogrid,.geargrid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.ecocard,.gecard,.geard{background:linear-gradient(180deg,var(--panel),#11101a);border:1px solid var(--line);
  border-radius:16px;padding:22px;display:block}
.ecocard.featured{border-color:var(--pink)}
.ecocard:hover,.gecard:hover,.geard:hover{border-color:var(--pur)}
.ecoicon{font-size:26px;margin-bottom:8px}
.ecocard h3,.gecard h3,.geard h3{margin:0 0 8px;font-size:17px}
.ecocard p,.gecard p,.geard p{color:var(--dim);font-size:14px;margin:0 0 12px}
.soon{font-size:11px;color:var(--amb);border:1px solid #4a3a1a;border-radius:20px;padding:3px 10px}
.tag{font-size:11px;color:var(--pur2);border:1px solid var(--line);border-radius:20px;padding:3px 10px;
  text-transform:uppercase;letter-spacing:.6px;display:inline-block;margin-bottom:10px}
.gecard .price,.geard .price{color:var(--cyan);font-weight:700;font-size:14px}

/* pro */
.pro .proinner{background:linear-gradient(135deg,#1a1330,#120e1e);border:1px solid var(--pink);
  border-radius:20px;padding:32px;display:grid;grid-template-columns:1fr auto;gap:30px;align-items:center;
  box-shadow:0 16px 50px rgba(255,46,151,.14)}
.pro h2{font-size:26px;margin:6px 0 10px}
.pro ul{margin:14px 0 0;padding-left:18px;color:var(--dim)}
.pro li{margin:4px 0}
.prebuy{text-align:center;min-width:200px}
.bigprice{font-size:48px;font-weight:900;
  background:linear-gradient(90deg,var(--pink),var(--cyan));-webkit-background-clip:text;background-clip:text;color:transparent}
.fineprint{color:var(--dim);font-size:12px;margin-top:8px}

/* learn */
.learn h3{font-size:18px;margin:22px 0 6px;color:var(--pur2)}
.learn p{color:var(--dim)}
.learn b{color:var(--txt)}

/* footer */
footer{border-top:1px solid var(--line);margin-top:60px;padding:30px 26px 50px;text-align:center}
.disclaimer{color:var(--dim);font-size:12px;max-width:560px;margin:14px auto}
.copy{color:var(--dim);font-size:12px}

@media (max-width:720px){
  nav{display:none} .ticker{max-width:none;flex:1}
  .grid2,.out,.ecogrid,.geargrid{grid-template-columns:1fr}
  .pro .proinner{grid-template-columns:1fr}
}

/* ── blog + articles ─────────────────────────────────────────────────────── */
.bloglist{max-width:880px;margin:28px auto;padding:0 26px;display:grid;gap:16px}
.bloglist h1{font-size:30px;margin:6px 0 4px}
.bloglist .sub{margin-bottom:14px}
.postcard{display:block;background:linear-gradient(180deg,var(--panel),#11101a);border:1px solid var(--line);
  border-radius:16px;padding:20px 22px}
.postcard:hover{border-color:var(--pink)}
.postcard h3{margin:0 0 6px;font-size:20px;color:var(--txt)}
.postcard p{color:var(--dim);margin:0 0 8px}
.postcard .meta{color:var(--pur2);font-size:11px;text-transform:uppercase;letter-spacing:.6px}
.crumbs{max-width:760px;margin:18px auto 0;padding:0 26px;font-size:13px;color:var(--dim)}
.crumbs a{color:var(--pur2)}
.article{max-width:760px;margin:14px auto 60px;padding:0 26px}
.article h1{font-size:clamp(26px,4vw,40px);margin:6px 0 10px;
  background:linear-gradient(90deg,var(--pur2),var(--pink2),var(--cyan));-webkit-background-clip:text;background-clip:text;color:transparent}
.article .meta{color:var(--dim);font-size:13px;margin-bottom:22px}
.article h2{font-size:24px;margin:30px 0 10px;color:var(--pur2)}
.article h3{font-size:18px;margin:20px 0 6px}
.article p,.article li{color:#cfc7dd;font-size:16px;line-height:1.7}
.article .lead{font-size:18px;color:var(--txt)}
.article a{color:var(--cyan);text-decoration:underline}
.article ul,.article ol{padding-left:22px}
.article .cta{background:linear-gradient(135deg,#1a1330,#120e1e);border:1px solid var(--pink);
  border-radius:14px;padding:18px 22px;margin:26px 0;text-align:center}
.article table{width:100%;border-collapse:collapse;margin:16px 0;font-size:15px}
.article th,.article td{border:1px solid var(--line);padding:8px 10px;text-align:left}
.article th{background:var(--panel2);color:var(--pur2)}