:root{
  --bg:#0b0b0f; --bg2:#131319; --card:#17171f; --line:#26262f;
  --p1:#7c3aed; --p2:#ec4899; --acc:#22d3ee; --txt:#f4f4f6; --muted:#9a9aa8;
  --sans:'Space Grotesk',system-ui,sans-serif; --body:'Inter',sans-serif;
  --r:16px; --grad:linear-gradient(135deg,#7c3aed,#ec4899);
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{background:var(--bg);color:var(--txt);font-family:var(--body);line-height:1.7;font-size:17px}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.wrap{max-width:1160px;margin:0 auto;padding:0 22px}
.nav{position:sticky;top:0;z-index:50;background:rgba(11,11,15,.85);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.nav-in{display:flex;align-items:center;justify-content:space-between;height:72px;max-width:1160px;margin:0 auto;padding:0 22px}
.logo{font-family:var(--sans);font-size:1.45rem;font-weight:700;display:flex;align-items:center;gap:9px}
.logo span{background:var(--grad);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.nav-links{display:flex;gap:28px;align-items:center}
.nav-links a{color:var(--muted);font-size:.93rem;font-weight:600;transition:.2s}
.nav-links a:hover{color:var(--txt)}
.burger{display:none;background:none;border:0;color:var(--txt);font-size:1.6rem;cursor:pointer}
.hero{padding:100px 0 70px;text-align:center;background:radial-gradient(ellipse at top,rgba(124,58,237,.16),transparent 60%)}
.eyebrow{color:var(--acc);letter-spacing:3px;text-transform:uppercase;font-size:.8rem;font-weight:700;margin-bottom:18px}
.hero h1{font-family:var(--sans);font-size:3.8rem;line-height:1.05;font-weight:700;margin-bottom:22px;letter-spacing:-1px}
.hero h1 em{font-style:normal;background:var(--grad);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.hero p{max-width:620px;margin:0 auto 32px;color:var(--muted);font-size:1.18rem}
.btn{display:inline-block;background:var(--grad);color:#fff;padding:15px 34px;border-radius:40px;font-weight:700;transition:.25s;border:0;cursor:pointer;font-size:1rem}
.btn:hover{transform:translateY(-2px);box-shadow:0 12px 30px rgba(124,58,237,.4)}
.btn-ghost{background:transparent;border:1px solid var(--line);color:var(--txt)}
.btn-ghost:hover{border-color:var(--p2);color:var(--txt)}
.hero-btns{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}
.sec{padding:70px 0}
.sec.alt{background:var(--bg2)}
.sec-head{text-align:center;max-width:660px;margin:0 auto 48px}
.sec-head h2{font-family:var(--sans);font-size:2.6rem;font-weight:700;margin-bottom:14px}
.sec-head p{color:var(--muted);font-size:1.06rem}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(310px,1fr));gap:24px}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:30px;transition:.25s;position:relative}
.card:hover{transform:translateY(-4px);border-color:var(--p1)}
.card .ico{width:54px;height:54px;border-radius:14px;background:var(--grad);display:flex;align-items:center;justify-content:center;font-size:1.5rem;margin-bottom:16px}
.card h3{font-family:var(--sans);font-size:1.35rem;margin-bottom:9px;font-weight:700}
.card p{color:var(--muted);font-size:.97rem;margin-bottom:15px}
.card .link{color:var(--acc);font-weight:700;font-size:.9rem}
.tool{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:34px;margin:28px 0}
.tool h2{font-family:var(--sans);font-size:1.8rem;margin-bottom:8px}
.field{margin:16px 0}
.field label{display:block;font-size:.87rem;color:var(--muted);margin-bottom:7px;font-weight:600}
.field input,.field select{width:100%;background:var(--bg2);border:1px solid var(--line);border-radius:10px;padding:13px 15px;color:var(--txt);font-size:1rem;font-family:inherit}
.field input:focus,.field select:focus{outline:none;border-color:var(--p1)}
.row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.result{margin-top:22px;padding:26px;background:linear-gradient(135deg,rgba(124,58,237,.14),rgba(236,72,153,.06));border:1px solid rgba(124,58,237,.3);border-radius:12px;text-align:center}
.result .big{font-family:var(--sans);font-size:2.6rem;background:var(--grad);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;font-weight:700;margin:4px 0}
.result .lbl{color:var(--muted);font-size:.83rem;text-transform:uppercase;letter-spacing:2px;font-weight:700}
.result small{color:var(--muted);display:block;margin-top:8px}
.palette{display:flex;gap:0;border-radius:12px;overflow:hidden;margin-top:20px;height:110px}
.swatch{flex:1;display:flex;align-items:flex-end;justify-content:center;padding-bottom:10px;font-size:.72rem;font-weight:700;color:#fff;text-shadow:0 1px 3px rgba(0,0,0,.5);cursor:pointer}
.namelist{margin-top:18px;display:grid;grid-template-columns:1fr 1fr;gap:10px}
.namechip{background:var(--bg2);border:1px solid var(--line);border-radius:10px;padding:12px 16px;font-family:var(--sans);font-weight:600}
.ad-band{margin:32px 0;text-align:center}
.ad-label{font-size:.68rem;color:var(--muted);letter-spacing:2px;text-transform:uppercase;margin-bottom:6px;opacity:.6}
.ad-band:has(.ad-box:empty){display:none}
.article{max-width:750px;margin:0 auto;padding:46px 0}
.article h1{font-family:var(--sans);font-size:2.7rem;line-height:1.1;margin-bottom:14px}
.article .meta{color:var(--muted);font-size:.9rem;margin-bottom:32px}
.article h2{font-family:var(--sans);font-size:1.7rem;margin:34px 0 12px}
.article h3{font-size:1.2rem;margin:24px 0 9px;color:var(--acc)}
.article p{margin-bottom:16px;color:#d0d0d8}
.article ul,.article ol{margin:0 0 16px 22px;color:#d0d0d8}
.article li{margin-bottom:7px}
.article blockquote{border-left:3px solid var(--p1);padding-left:18px;margin:20px 0;color:var(--muted);font-style:italic}
.callout{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:20px;margin:22px 0}
.footer{border-top:1px solid var(--line);margin-top:50px;padding:48px 0 28px;background:var(--bg2)}
.foot-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:28px;margin-bottom:32px}
.foot-grid h4{font-family:var(--sans);margin-bottom:13px;font-size:1.05rem}
.foot-grid a{display:block;color:var(--muted);font-size:.92rem;margin-bottom:8px}
.foot-grid a:hover{color:var(--txt)}
.foot-bottom{border-top:1px solid var(--line);padding-top:22px;text-align:center;color:var(--muted);font-size:.86rem}
.foot-desc{color:var(--muted);font-size:.94rem;max-width:320px}
.tag{display:inline-block;background:rgba(124,58,237,.14);color:var(--acc);padding:5px 13px;border-radius:20px;font-size:.77rem;font-weight:700;margin-bottom:14px}
.breadcrumb{color:var(--muted);font-size:.85rem;margin:22px 0}
.breadcrumb a:hover{color:var(--txt)}
@media(max-width:820px){
  .nav-links{display:none}
  .nav-links.open{display:flex;position:absolute;top:72px;left:0;right:0;flex-direction:column;background:var(--bg2);padding:20px;gap:16px;border-bottom:1px solid var(--line)}
  .burger{display:block}.hero h1{font-size:2.5rem}.sec-head h2{font-size:2rem}
  .foot-grid{grid-template-columns:1fr 1fr}.row{grid-template-columns:1fr}.namelist{grid-template-columns:1fr}.article h1{font-size:2rem}
}

/* ICON-UPGRADE */
.ico{width:56px;height:56px;border-radius:14px;background:linear-gradient(135deg,#7c3aed,#ec4899);display:inline-flex;align-items:center;justify-content:center;margin-bottom:16px;font-size:0}
.ico svg{width:28px;height:28px;color:#ffffff;stroke:#ffffff}
.logo-mark{width:30px;height:30px;border-radius:8px;display:inline-flex;align-items:center;justify-content:center;background:linear-gradient(135deg,#7c3aed,#ec4899)}
.logo-mark svg{width:20px;height:20px;color:#ffffff;stroke:#ffffff}
.logo{gap:10px}
.burger svg{width:26px;height:26px;display:block}
.foot-grid .logo-mark{width:26px;height:26px}
.foot-grid .logo-mark svg{width:17px;height:17px}