:root{
  --navy:#0A1633;--navy-2:#0E1F44;--navy-3:#13284f;
  --blue:#2D6CFF;--blue-2:#5B8DEF;--blue-soft:#E9F0FF;
  --silver:#AEBBD4;--silver-2:#7E8CA8;
  --ink:#0B1428;--muted:#5C6880;
  --soft:#F4F7FD;--soft-2:#EEF3FB;--line:#E2E9F4;--white:#FFFFFF;
  --radius:16px;--shadow:0 18px 50px -22px rgba(10,22,51,.28);--shadow-sm:0 8px 24px -14px rgba(10,22,51,.30);
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:'Inter',-apple-system,BlinkMacSystemFont,sans-serif;color:var(--ink);background:var(--white);line-height:1.6;-webkit-font-smoothing:antialiased}
h1,h2,h3,h4,.disp{font-family:'Poppins',sans-serif;line-height:1.12;letter-spacing:-.01em}
a{text-decoration:none;color:inherit}
img{max-width:100%;display:block}
.wrap{max-width:1200px;margin:0 auto;padding:0 24px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-family:'Poppins';font-weight:600;font-size:12.5px;letter-spacing:.14em;text-transform:uppercase;color:var(--blue)}
.eyebrow::before{content:"";width:0;height:0;border-left:5px solid transparent;border-right:5px solid transparent;border-bottom:8px solid var(--blue);display:inline-block;filter:drop-shadow(0 1px 1px rgba(45,108,255,.4))}
.eyebrow.on-dark{color:var(--blue-2)}
.eyebrow.on-dark::before{border-bottom-color:var(--blue-2)}

.btn{display:inline-flex;align-items:center;gap:9px;font-family:'Poppins';font-weight:600;font-size:14.5px;padding:13px 24px;border-radius:11px;transition:.22s ease;cursor:pointer;border:1px solid transparent;white-space:nowrap}
.btn-primary{background:linear-gradient(135deg,var(--blue),#1E54E0);color:#fff;box-shadow:0 10px 26px -12px rgba(45,108,255,.65)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 16px 32px -12px rgba(45,108,255,.7)}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--ink)}
.btn-ghost:hover{border-color:var(--blue);color:var(--blue);background:var(--blue-soft)}
.btn-ghost.on-dark{color:#fff;border-color:rgba(255,255,255,.22)}
.btn-ghost.on-dark:hover{background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.45);color:#fff}

/* hero with search */
.hero{position:relative;background:radial-gradient(900px 480px at 80% -10%,rgba(45,108,255,.3),transparent 60%),radial-gradient(700px 500px at 0% 110%,rgba(94,141,239,.16),transparent 55%),var(--navy);color:#fff;overflow:hidden}
.hero::after{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px);background-size:46px 46px;mask-image:radial-gradient(800px 420px at 50% 0%,#000,transparent 75%);pointer-events:none}
.hero .hero-in{display:block !important;}
  .hero-in{position:relative;z-index:2;padding-top:78px;padding-bottom:70px;text-align:center;max-width:720px;margin:0 auto}
.hero h1{font-size:clamp(26px,5vw,52px);font-weight:800;margin:16px 0 14px}
.hero h1 .grad{background:linear-gradient(120deg,#9fb6e6,#5B8DEF 55%,#2D6CFF);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero p{font-size:17px;color:rgba(255,255,255,.76);max-width:520px;margin:0 auto}
.search{margin:30px auto 0;max-width:600px;display:flex;align-items:center;gap:10px;background:#fff;border-radius:14px;padding:8px 8px 8px 18px;box-shadow:0 22px 50px -20px rgba(0,0,0,.5)}
.search svg{width:20px;height:20px;color:var(--muted);flex:0 0 20px}
.search input{flex:1;border:none;outline:none;font-family:'Inter';font-size:15px;color:var(--ink);background:transparent}
.search .btn{padding:11px 22px}
.tags{margin-top:22px;display:flex;flex-wrap:wrap;gap:9px;justify-content:center}
.tags span{font-size:12px;font-weight:600;font-family:'Poppins';color:rgba(255,255,255,.6);margin-right:2px}
.tags a{font-size:12.5px;color:rgba(255,255,255,.82);background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.12);padding:6px 13px;border-radius:20px;transition:.18s}
.tags a:hover{background:rgba(45,108,255,.25);border-color:rgba(91,141,239,.5);color:#fff}

/* categories */
.cats{background:#fff;padding:80px 0}
.sec-head{max-width:640px;margin:0 auto 46px;text-align:center}
.sec-head h2{font-size:clamp(22px,3.4vw,38px);font-weight:700;margin:14px 0 12px}
.sec-head p{font-size:16px;color:var(--muted)}
.cat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.cat{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px;transition:.25s;position:relative;overflow:hidden}
.cat::after{content:"";position:absolute;left:0;bottom:0;width:100%;height:3px;background:linear-gradient(90deg,var(--blue),#1E54E0);transform:scaleX(0);transform-origin:left;transition:.28s}
.cat:hover{transform:translateY(-5px);box-shadow:var(--shadow);border-color:transparent}
.cat:hover::after{transform:scaleX(1)}
.cat .ic{width:52px;height:52px;border-radius:14px;background:var(--blue-soft);display:grid;place-items:center;color:var(--blue);margin-bottom:18px;transition:.25s}
.cat:hover .ic{background:var(--blue);color:#fff}
.cat .ic svg{width:25px;height:25px}
.cat h3{font-size:17px;font-weight:600;margin-bottom:6px}
.cat p{color:var(--muted);font-size:13.5px;margin-bottom:14px;min-height:38px}
.cat .meta{display:flex;align-items:center;justify-content:space-between}
.cat .count{font-size:12px;color:var(--silver-2);font-weight:600;font-family:'Poppins'}
.cat .go{display:inline-flex;align-items:center;gap:6px;font-family:'Poppins';font-weight:600;font-size:13px;color:var(--blue)}
.cat .go svg{width:14px;height:14px;transition:.2s}
.cat:hover .go svg{transform:translateX(4px)}

/* popular articles */
.popular{background:var(--soft);padding:80px 0}
.pop-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;max-width:920px;margin:0 auto}
.pop{display:flex;gap:16px;align-items:center;background:#fff;border:1px solid var(--line);border-radius:14px;padding:18px 22px;transition:.2s}
.pop:hover{border-color:var(--blue);box-shadow:var(--shadow-sm);transform:translateX(3px)}
.pop .n{flex:0 0 38px;height:38px;border-radius:10px;background:var(--blue-soft);color:var(--blue);display:grid;place-items:center}
.pop .n svg{width:19px;height:19px}
.pop h4{font-size:14.8px;font-weight:600;margin-bottom:1px}
.pop p{font-size:12.8px;color:var(--muted)}
.pop .arr{margin-left:auto;color:var(--silver-2);flex:0 0 18px}
.pop .arr svg{width:18px;height:18px}

/* still need help */
.need{background:#fff;padding:80px 0}
.need-box{background:linear-gradient(160deg,var(--navy-2),var(--navy));border-radius:24px;padding:50px;color:#fff;position:relative;overflow:hidden}
.need-box::after{content:"";position:absolute;right:-100px;top:-100px;width:360px;height:360px;background:radial-gradient(circle,rgba(45,108,255,.35),transparent 65%);pointer-events:none}
.need-top{position:relative;z-index:2;max-width:560px;margin-bottom:34px}
.need-top h2{font-size:clamp(20px,3vw,32px);font-weight:700;margin:12px 0 12px}
.need-top p{color:rgba(255,255,255,.74);font-size:16px}
.need-grid{position:relative;z-index:2;display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.nc{background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.1);border-radius:14px;padding:24px;transition:.2s}
.nc:hover{background:rgba(255,255,255,.09);border-color:rgba(91,141,239,.4);transform:translateY(-3px)}
.nc .ic{width:46px;height:46px;border-radius:12px;background:rgba(45,108,255,.2);color:var(--blue-2);display:grid;place-items:center;margin-bottom:14px}
.nc .ic svg{width:22px;height:22px}
.nc h4{font-size:16px;font-weight:600;color:#fff;margin-bottom:5px}
.nc p{font-size:13.2px;color:rgba(255,255,255,.66);margin-bottom:12px}
.nc a{font-family:'Poppins';font-weight:600;font-size:13px;color:var(--blue-2);display:inline-flex;align-items:center;gap:6px}
.nc a svg{width:14px;height:14px;transition:.2s}
.nc:hover a svg{transform:translateX(4px)}


@media(max-width:960px){
  .nav-links,.nav-right .login{display:none}
  .menu-btn{display:block}
  .cat-grid{grid-template-columns:repeat(2,1fr)}
  .pop-grid,.need-grid{grid-template-columns:1fr}
  .f-top{grid-template-columns:1fr 1fr}
}
@media(max-width:560px){
  .wrap{padding:0 18px}
  .cat-grid{grid-template-columns:1fr}
  .f-top{grid-template-columns:1fr}
  .hero-in{padding-top:56px;padding-bottom:54px}
  .search{flex-wrap:wrap;padding:14px}
  .search .btn{width:100%;justify-content:center}
  .need-box{padding:30px 22px}
}
@media(prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto}}