:root{--navy:#0d1b3e;--navy2:#122452;--gold:#f5b921;--gold2:#ffd54a;--ink:#1f2430;
--muted:#5b6472;--bg:#f6f8fc;--card:#ffffff;--line:#e4e9f2;--green:#1e9e6a;--red:#d64545;
--radius:14px;--shadow:0 8px 28px rgba(13,27,62,.08)}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:'Segoe UI',system-ui,-apple-system,Roboto,Helvetica,Arial,sans-serif;
color:var(--ink);background:var(--bg);line-height:1.7}
img{max-width:100%}
a{color:var(--navy2);text-decoration:none}
a:hover{color:var(--gold)}
.wrap{max-width:1180px;margin:0 auto;padding:0 20px}
/* Header */
header.site{position:sticky;top:0;z-index:50;background:var(--navy);box-shadow:0 2px 12px rgba(0,0,0,.25)}
.hd{display:flex;align-items:center;justify-content:space-between;height:66px}
.logo{color:#fff;font-weight:800;font-size:1.35rem;letter-spacing:.3px;display:flex;align-items:center;gap:9px}
.logo .dot{width:14px;height:14px;background:var(--gold);border-radius:4px;transform:rotate(45deg)}
.logo span{color:var(--gold)}
nav.main{display:flex;gap:4px}
nav.main a{color:#dbe3f5;padding:10px 15px;border-radius:8px;font-weight:600;font-size:.95rem}
nav.main a:hover,nav.main a.on{background:var(--navy2);color:var(--gold2)}
.burger{display:none;background:none;border:none;color:#fff;font-size:1.6rem;cursor:pointer}
/* Hero */
.hero{background:linear-gradient(135deg,#0d1b3e 0%,#16306e 60%,#1d3f8f 100%);color:#fff;padding:74px 0 84px;position:relative;overflow:hidden}
.hero::after{content:"";position:absolute;right:-120px;top:-120px;width:420px;height:420px;background:radial-gradient(circle,rgba(245,185,33,.25),transparent 65%)}
.hero .kicker{color:var(--gold2);font-weight:700;text-transform:uppercase;letter-spacing:2px;font-size:.8rem}
.hero h1{font-size:clamp(1.9rem,4.4vw,3.1rem);line-height:1.2;margin:14px 0 16px;max-width:820px}
.hero p{max-width:720px;color:#cfdaf2;font-size:1.08rem}
.btn{display:inline-block;background:var(--gold);color:#0d1b3e;font-weight:800;padding:13px 28px;border-radius:10px;margin-top:26px;box-shadow:0 6px 18px rgba(245,185,33,.35)}
.btn:hover{background:var(--gold2);color:#0d1b3e}
/* Sections */
section.block{padding:64px 0}
.sec-title{font-size:clamp(1.5rem,3vw,2.1rem);color:var(--navy);margin-bottom:8px}
.sec-sub{color:var(--muted);max-width:760px;margin-bottom:34px}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:24px}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:26px;box-shadow:var(--shadow);transition:transform .2s,box-shadow .2s;display:flex;flex-direction:column}
.card:hover{transform:translateY(-4px);box-shadow:0 14px 34px rgba(13,27,62,.13)}
.card h3{font-size:1.18rem;margin:4px 0 10px;color:var(--navy)}
.card p{color:var(--muted);font-size:.95rem;flex:1}
.tag{display:inline-block;background:#eef2fb;color:var(--navy2);font-size:.72rem;font-weight:700;text-transform:uppercase;letter-spacing:1px;padding:4px 12px;border-radius:20px;width:fit-content}
.tag.gold{background:#fdf3d7;color:#9a7200}
.read{font-weight:700;font-size:.92rem;margin-top:14px;color:var(--navy2)}
/* Ad network cards */
.net{position:relative}
.net .pill{position:absolute;top:22px;right:22px;font-size:.7rem;font-weight:800;padding:4px 11px;border-radius:20px;letter-spacing:.5px}
.pill.easy{background:#e2f6ec;color:var(--green)}
.pill.mid{background:#fdf3d7;color:#9a7200}
.pill.hard{background:#fbe4e4;color:var(--red)}
.net ul{list-style:none;margin:14px 0 4px;flex:1}
.net li{font-size:.9rem;color:var(--muted);padding:5px 0 5px 20px;position:relative}
.net li::before{content:"";position:absolute;left:0;top:12px;width:8px;height:8px;background:var(--gold);border-radius:2px;transform:rotate(45deg)}
/* Table */
.tbl-wrap{overflow-x:auto;border-radius:var(--radius);box-shadow:var(--shadow);border:1px solid var(--line)}
table{width:100%;border-collapse:collapse;background:#fff;font-size:.9rem;min-width:720px}
th{background:var(--navy);color:#fff;text-align:left;padding:13px 16px;font-size:.82rem;text-transform:uppercase;letter-spacing:.6px}
td{padding:12px 16px;border-bottom:1px solid var(--line);color:var(--muted)}
tr:last-child td{border-bottom:none}
td b{color:var(--navy)}
/* Article */
.post-hero{background:var(--navy);color:#fff;padding:56px 0}
.post-hero .crumb{color:#9fb0d8;font-size:.85rem;margin-bottom:14px}
.post-hero .crumb a{color:var(--gold2)}
.post-hero h1{font-size:clamp(1.6rem,3.6vw,2.4rem);line-height:1.25;max-width:880px}
.meta{margin-top:16px;color:#b9c6e6;font-size:.88rem;display:flex;gap:18px;flex-wrap:wrap}
article.article{background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:44px clamp(22px,5vw,58px);margin:-34px auto 0;max-width:920px;position:relative}
article.article p{margin:0 0 20px;color:#333a46;font-size:1.02rem}
article.article h2{color:var(--navy);font-size:1.45rem;margin:36px 0 14px;padding-left:16px;border-left:5px solid var(--gold)}
article.article h3{color:var(--navy2);font-size:1.15rem;margin:26px 0 10px}
article.article ul,article.article ol{margin:0 0 20px 26px;color:#333a46}
article.article li{margin-bottom:8px}
.note{background:#fdf3d7;border-left:5px solid var(--gold);border-radius:8px;padding:16px 20px;margin:24px 0;font-size:.94rem;color:#6b5b1f}
/* Related */
.related{max-width:920px;margin:40px auto 0}
/* Footer */
footer{background:var(--navy);color:#b9c6e6;padding:56px 0 26px;margin-top:70px}
.ft-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:40px}
footer h4{color:#fff;margin-bottom:14px;font-size:1rem}
footer a{color:#b9c6e6;display:block;padding:4px 0;font-size:.92rem}
footer a:hover{color:var(--gold2)}
.copy{border-top:1px solid rgba(255,255,255,.12);margin-top:40px;padding-top:20px;text-align:center;font-size:.85rem;color:#8fa0c8}
/* Responsive */
@media(max-width:860px){
.burger{display:block}
nav.main{display:none;position:absolute;top:66px;left:0;right:0;background:var(--navy);flex-direction:column;padding:12px 20px 20px}
nav.main.open{display:flex}
.ft-grid{grid-template-columns:1fr}
article.article{padding:34px 22px}
}

/* Post layout with sidebar */
.post-layout{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:34px;max-width:1180px;margin:-34px auto 0;padding:0 20px;position:relative;z-index:2;align-items:start}
.post-layout article.article{margin:0;max-width:none;padding:40px clamp(20px,4vw,48px)}
.post-img{width:100%;border-radius:12px;margin:0 0 26px;box-shadow:0 6px 18px rgba(13,27,62,.12)}
aside.sidebar{position:sticky;top:86px}
.widget{background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:22px;margin-bottom:26px}
.widget h4{color:var(--navy);font-size:1rem;margin-bottom:16px;padding-bottom:10px;border-bottom:2px solid var(--gold)}
.widget ul{list-style:none}
.widget li a{display:block;padding:8px 0;font-size:.92rem;border-bottom:1px solid var(--line);color:var(--muted)}
.widget li:last-child a{border-bottom:none}
.widget li a:hover{color:var(--navy2);padding-left:6px}
.ad-label{font-size:.65rem;font-weight:700;letter-spacing:1.5px;color:#9aa3b2;text-align:center;text-transform:uppercase;margin-bottom:8px}
.ad-unit{display:flex;justify-content:center;align-items:center;overflow:hidden}
.ad-leaderboard{margin:40px auto;max-width:1180px;padding:0 20px}
@media(max-width:960px){
.post-layout{grid-template-columns:1fr}
aside.sidebar{position:static;max-width:420px;margin:0 auto;width:100%}
}