/* Nền tảng dùng chung cho cả 4 site. Màu/font đến từ biến :root (site-config.json). */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{display:flex;flex-direction:column;min-height:100vh;margin:0;background:var(--bg);color:var(--ink);font:17px/1.7 var(--font-body);-webkit-font-smoothing:antialiased}
img{max-width:100%;height:auto;display:block}
a{color:var(--primary);text-decoration:none}
a:hover{text-decoration:underline}
h1,h2,h3,h4{font-family:var(--font-head);line-height:1.25;margin:0 0 .5em;color:var(--ink)}
p{margin:0 0 1em}
ul,ol{margin:0;padding:0}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.skip{position:absolute;left:-999px}.skip:focus{left:8px;top:8px;z-index:99;background:#fff;color:#000;padding:8px 12px}
.wrap{max-width:1200px;margin:0 auto;padding:0 20px}
.wrap.narrow{max-width:820px}
.has-side{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:36px;align-items:start}
.main-col{min-width:0}
main{width:100%;flex:1 0 auto}
main.wrap{padding-top:28px;padding-bottom:48px}

/* Header */
.hd{background:var(--hd-bg);color:var(--hd-ink);position:relative;z-index:20}
.hd a{color:inherit}
.hd-top{font-size:13px;opacity:.85;border-bottom:1px solid rgba(255,255,255,.12)}
.hd-top .wrap{display:flex;justify-content:space-between;padding-top:6px;padding-bottom:6px;gap:12px}
.hd-main .wrap{display:flex;align-items:center;gap:24px;padding-top:14px;padding-bottom:14px}
.brand{display:flex;align-items:center;gap:10px;color:inherit;text-decoration:none!important;flex:none}
.brand .logo{color:var(--accent);flex:none}
.brand-t{display:flex;flex-direction:column;line-height:1.15}
.brand-t b{font:800 22px var(--font-head);letter-spacing:.2px}
.brand-t small{font-size:12px;opacity:.75;white-space:nowrap}
.nav{display:flex;align-items:center;gap:18px;margin-left:auto}
.menu{display:flex;gap:4px;list-style:none;flex-wrap:wrap}
.menu a{display:block;padding:8px 12px;border-radius:6px;font:600 15px var(--font-body);white-space:nowrap}
.menu a:hover,.menu .current-menu-item>a,.menu .current-cat>a{background:rgba(255,255,255,.14);text-decoration:none}
.sf{display:flex;background:rgba(255,255,255,.12);border-radius:8px;overflow:hidden}
.sf input{background:transparent;border:0;color:inherit;padding:8px 10px;font:inherit;font-size:14px;width:150px;outline:0}
.sf input::placeholder{color:inherit;opacity:.6}
.sf button{background:transparent;border:0;color:inherit;padding:0 10px;cursor:pointer}
.nav-toggle{display:none;margin-left:auto;background:transparent;border:0;color:inherit;padding:8px;cursor:pointer}
.nav-toggle span{display:block;width:24px;height:2px;background:currentColor;margin:5px 0;transition:.2s}

/* Thẻ bài & thành phần */
.chip{display:inline-block;font:700 12px var(--font-body);text-transform:uppercase;letter-spacing:.6px;color:var(--primary-ink);background:var(--primary);padding:3px 9px;border-radius:4px;margin-bottom:8px}
.chip:hover{text-decoration:none;filter:brightness(1.1)}
.meta{font-size:13.5px;color:var(--muted);display:flex;flex-wrap:wrap;gap:0 6px;align-items:center}
.meta.big{font-size:14.5px}
.dot{opacity:.6}
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius,10px);overflow:hidden;display:flex;flex-direction:column;transition:box-shadow .2s,transform .2s}
.card:hover{box-shadow:0 8px 24px rgba(0,0,0,.1);transform:translateY(-2px)}
.card-img{display:block;aspect-ratio:16/9;overflow:hidden;background:var(--soft)}
.card-img img{width:100%;height:100%;object-fit:cover}
.card-body{padding:14px 16px 16px;display:flex;flex-direction:column;flex:1}
.card-body .chip{align-self:flex-start}
.card-title{font-size:18px;margin:0 0 6px}
.card-title a{color:var(--ink)}.card-title a:hover{color:var(--primary);text-decoration:none}
.card-ex{color:var(--muted);font-size:15px;margin:0 0 10px}
.card .meta{margin-top:auto}
.grid3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.list{display:flex;flex-direction:column;gap:18px}
.card.row-card{flex-direction:row}
.card.row-card .card-img{width:260px;flex:none;aspect-ratio:auto;min-height:160px}
.card.compact{flex-direction:row;border:0;border-bottom:1px solid var(--line);border-radius:0;background:transparent}
.card.compact:hover{box-shadow:none;transform:none}
.card.compact .card-img{width:110px;flex:none;aspect-ratio:4/3;align-self:flex-start}
.card.compact .card-body{padding:0 0 0 12px}
.card.compact .card-title{font-size:15px}
.ov{position:relative;border-radius:var(--radius,10px);overflow:hidden;background:#000;min-height:220px}
.ov-img,.ov-img img,.ov-img .ph{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;display:block}
.ov::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 30%,rgba(0,0,0,.82));pointer-events:none}
.ov-body{position:absolute;left:0;right:0;bottom:0;padding:16px 18px;z-index:2;color:#fff}
.ov-title{font-size:19px;margin:0 0 6px;color:#fff}
.ov-title a{color:#fff}.ov-big .ov-title{font-size:28px}
.ov .meta{color:rgba(255,255,255,.8)}
.sec-t{font-size:21px;margin:0 0 16px;display:flex;align-items:center;gap:12px}
.sec-t span{border-left:5px solid var(--accent);padding-left:10px}
.sec-t a{color:inherit}
.blk{margin-top:34px}.main-col>.blk:first-child{margin-top:0}
.catblk{display:grid;grid-template-columns:1.2fr 1fr;gap:20px}
.catblk.solo{grid-template-columns:1fr}
.catblk.solo .card{flex-direction:row}
.catblk.solo .card-img{width:44%;flex:none;aspect-ratio:auto;min-height:200px}
.catblk.solo .card-title{font-size:22px}
.rows,.mini,.rank{list-style:none}
.row{display:flex;gap:10px;align-items:baseline;padding:10px 0;border-bottom:1px solid var(--line)}
.row-t{color:var(--ink);font-weight:600;flex:1;line-height:1.4}
.row-n{font:800 20px var(--font-head);color:var(--accent);min-width:30px}
.row .meta{white-space:nowrap;font-size:12.5px}

/* Thanh bên */
.side{display:flex;flex-direction:column;gap:20px;position:sticky;top:16px}
.box{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius,10px);padding:16px 18px}
.box-t{font-size:16px;margin:0 0 10px;text-transform:uppercase;letter-spacing:.5px}
.box p{font-size:14.5px;color:var(--muted);margin:0}
.box.note{background:var(--soft);border-style:dashed}
.catlist{list-style:none}.catlist li{padding:6px 0;border-bottom:1px solid var(--line);font-size:15px;display:flex;justify-content:space-between;gap:8px}
.catlist a{color:var(--ink);font-weight:600}
.mini .row{flex-direction:column;gap:2px}

/* Nền thay ảnh: sân cỏ vẽ bằng CSS, 4 biến thể */
.ph{display:block;width:100%;height:100%;min-height:100%;aspect-ratio:16/9;background:
 radial-gradient(circle at 50% 50%,transparent 0 17%,rgba(255,255,255,.28) 17.5% 18.5%,transparent 19%),
 linear-gradient(90deg,transparent 49.6%,rgba(255,255,255,.28) 49.6% 50.4%,transparent 50.4%),
 linear-gradient(135deg,var(--ph1,var(--primary)),var(--ph2,var(--accent)))}
.ph-1{background-position:0 0,0 0,0 0;filter:hue-rotate(18deg)}
.ph-2{background:linear-gradient(90deg,transparent 49.6%,rgba(255,255,255,.25) 49.6% 50.4%,transparent 50.4%),repeating-linear-gradient(90deg,rgba(255,255,255,.07) 0 40px,transparent 40px 80px),linear-gradient(200deg,var(--ph2,var(--accent)),var(--ph1,var(--primary)))}
.ph-3{background:radial-gradient(circle at 20% 80%,rgba(255,255,255,.22) 0 14%,transparent 14.5%),radial-gradient(circle at 85% 20%,rgba(255,255,255,.16) 0 22%,transparent 22.5%),linear-gradient(315deg,var(--ph1,var(--primary)),var(--ph2,var(--accent)))}

/* Bài viết */
.post-hd{margin-bottom:20px}
.post-title{font-size:clamp(28px,4vw,40px);margin:6px 0 12px}
.post-img{margin:0 0 24px;border-radius:var(--radius,10px);overflow:hidden}
.entry{font-size:18px;line-height:1.8}
.entry h2{font-size:27px;margin:1.7em 0 .6em;padding-left:12px;border-left:5px solid var(--accent)}
.entry h3{font-size:21px;margin:1.4em 0 .5em}
.entry ul,.entry ol{margin:0 0 1.2em 1.3em}.entry li{margin-bottom:.4em}
.entry a{text-decoration:underline}
.entry blockquote{margin:1.4em 0;padding:12px 18px;border-left:4px solid var(--primary);background:var(--soft)}
.tbl{overflow-x:auto;margin:1.4em 0;border:1px solid var(--line);border-radius:8px}
.entry table{border-collapse:collapse;width:100%;min-width:480px;font-size:15.5px}
.entry th{background:var(--primary);color:var(--primary-ink);text-align:left}
.entry th,.entry td{padding:10px 12px;border-bottom:1px solid var(--line)}
.entry tbody tr:nth-child(even){background:var(--soft)}
.toc{background:var(--soft);border:1px solid var(--line);border-radius:8px;padding:14px 18px;margin:1.4em 0}
.toc-t{display:block;margin-bottom:6px;font:700 15px var(--font-head);text-transform:uppercase;letter-spacing:.5px}
.toc ol{margin-left:1.2em}.toc li{margin:3px 0;font-size:16px}
.notice{margin:28px 0;padding:14px 18px;border-radius:8px;background:var(--soft);border-left:4px solid var(--primary);font-size:15px;color:var(--muted)}
.author{display:flex;gap:14px;align-items:flex-start;padding:18px;border:1px solid var(--line);border-radius:10px;background:var(--surface)}
.author p{margin:4px 0 0;font-size:14.5px;color:var(--muted)}
.author-av{flex:none;width:46px;height:46px;border-radius:50%;background:var(--primary);color:var(--primary-ink);display:grid;place-items:center;font:800 20px var(--font-head)}
.arc-hd{margin-bottom:22px;padding-bottom:14px;border-bottom:2px solid var(--line)}
.arc-hd h1{font-size:32px;margin:0 0 6px}.arc-hd p{color:var(--muted);margin:0}
.pager{margin-top:28px}.pager .nav-links{display:flex;gap:6px;flex-wrap:wrap}
.pager .page-numbers{padding:7px 13px;border:1px solid var(--line);border-radius:6px;background:var(--surface);color:var(--ink)}
.pager .current{background:var(--primary);color:var(--primary-ink);border-color:var(--primary)}
.btn{display:inline-block;background:var(--primary);color:var(--primary-ink);font:700 15px var(--font-body);padding:11px 22px;border-radius:8px;margin-top:10px}
.btn:hover{text-decoration:none;filter:brightness(1.1)}
.e404{text-align:center;padding:30px 0}.e404-n{font:800 90px var(--font-head);color:var(--primary);margin:0;line-height:1}
.e404 .sf{max-width:380px;margin:18px auto 30px;background:var(--soft)}.e404 .sf input{color:var(--ink);width:100%}

/* Footer */
.ft{background:var(--ft-bg);color:var(--ft-ink);margin-top:40px}
.ft a{color:inherit;opacity:.85}
.ft-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.4fr;gap:32px;padding-top:40px;padding-bottom:30px}
.ft-t{font-size:15px;text-transform:uppercase;letter-spacing:.6px;color:var(--ft-ink);margin-bottom:12px}
.ft-menu{list-style:none}.ft-menu li{margin:7px 0;font-size:15px}
.ft p{font-size:14.5px;opacity:.8}
.ft-bot{border-top:1px solid rgba(255,255,255,.12);font-size:13.5px}
.ft-bot .wrap{display:flex;justify-content:space-between;padding-top:14px;padding-bottom:14px}

@media(max-width:960px){
 .has-side{grid-template-columns:1fr}.side{position:static}
 .grid3{grid-template-columns:repeat(2,minmax(0,1fr))}
 .catblk{grid-template-columns:1fr}
 .ft-grid{grid-template-columns:1fr 1fr}
 .nav-toggle{display:block}
 .nav{display:none;position:absolute;left:0;right:0;top:100%;background:var(--hd-bg);flex-direction:column;align-items:stretch;padding:12px 20px 18px;margin:0;box-shadow:0 14px 24px rgba(0,0,0,.25)}
 .nav.open{display:flex}.menu{flex-direction:column}.sf input{width:100%}.sf{flex:1}
}
@media(max-width:600px){
 body{font-size:16px}.entry{font-size:17px}
 .grid3{grid-template-columns:1fr}
 .catblk.solo .card,.card.row-card,.card.compact{flex-direction:column}.catblk.solo .card-img{width:100%;min-height:0;aspect-ratio:16/9}.card.row-card .card-img{width:100%;min-height:0;aspect-ratio:16/9}.card.compact .card-img{width:100%}.card.compact .card-body{padding:10px 0}
 .ft-grid{grid-template-columns:1fr}.hd-top .hd-note{display:none}
 .ov-big .ov-title{font-size:22px}.brand-t b{font-size:19px}
}