:root{color-scheme:light;
  --surface:#fcfcfb;--surface-2:#f3f2ef;--border:#e2e1dc;--text:#0b0b0b;--text-2:#52514e;--text-3:#7a7974;
  --vn:#2a78d6;--gl:#eb6834;--good:#0ca30c;--warning:#fab219;--serious:#ec835a;--critical:#d03b3b;--grid:#e6e5e0}
@media (prefers-color-scheme:dark){:root:where(:not([data-theme="light"])){color-scheme:dark;
  --surface:#1a1a19;--surface-2:#242422;--border:#383835;--text:#fff;--text-2:#c3c2b7;--text-3:#8f8e86;
  --vn:#3987e5;--gl:#d95926;--grid:#33332f}}
:root[data-theme="dark"]{color-scheme:dark;--surface:#1a1a19;--surface-2:#242422;--border:#383835;--text:#fff;
  --text-2:#c3c2b7;--text-3:#8f8e86;--vn:#3987e5;--gl:#d95926;--grid:#33332f}
*{box-sizing:border-box}
body{margin:0;background:var(--surface);color:var(--text);font:15px/1.55 system-ui,-apple-system,"Segoe UI",Roboto,sans-serif}
main{max-width:920px;margin:0 auto;padding:20px 16px 48px}
header .brand{font-weight:700;color:var(--text-2);letter-spacing:.02em;font-size:13px;text-transform:uppercase}
h1{font-size:26px;line-height:1.2;margin:4px 0 2px}
h2{font-size:17px;margin:28px 0 10px}
.sub,.muted{color:var(--text-2)} .small{font-size:13px}
.headline{background:var(--surface-2);border:1px solid var(--border);border-radius:10px;padding:14px 16px;margin:16px 0}
.headline p{margin:4px 0}
.grid{display:grid;gap:12px;grid-template-columns:repeat(auto-fit,minmax(260px,1fr))}
.card{border:1px solid var(--border);border-radius:10px;padding:14px 16px;background:var(--surface)}
.card .label{color:var(--text-2);font-size:13px}
.hero{font-size:44px;font-weight:700;line-height:1;margin:6px 0}
.hero small{font-size:16px;color:var(--text-3);font-weight:500}
.badge{display:inline-flex;gap:6px;align-items:center;font-size:13px;font-weight:600;padding:2px 8px;border-radius:999px;border:1px solid var(--border)}
.dot{font-size:11px}
.s-good .dot{color:var(--good)} .s-warning .dot{color:var(--warning)} .s-serious .dot{color:var(--serious)} .s-critical .dot{color:var(--critical)}
table{width:100%;border-collapse:collapse;font-size:14px}
th,td{padding:7px 6px;border-bottom:1px solid var(--border);text-align:left;vertical-align:top}
th{color:var(--text-2);font-weight:600;font-size:12px;text-transform:uppercase;letter-spacing:.03em}
td.n,th.n{text-align:right;font-variant-numeric:tabular-nums}
.bar{height:8px;border-radius:4px;background:var(--grid);overflow:hidden;min-width:80px}
.bar>span{display:block;height:100%;border-radius:4px;background:var(--text-3)}
.chart{position:relative;margin-top:6px}
.chart svg{width:100%;height:auto;display:block}
.legend{display:flex;gap:16px;flex-wrap:wrap;font-size:13px;color:var(--text-2);margin:4px 0}
.swatch{display:inline-block;width:14px;height:3px;border-radius:2px;vertical-align:middle;margin-right:6px}
.tip{position:absolute;pointer-events:none;background:var(--surface);border:1px solid var(--border);border-radius:8px;
  padding:6px 9px;font-size:13px;box-shadow:0 2px 8px rgba(0,0,0,.12);display:none;white-space:nowrap}
details{margin-top:8px} summary{cursor:pointer;color:var(--text-2);font-size:13px}
footer{margin-top:36px;border-top:1px solid var(--border);padding-top:14px;font-size:13px;color:var(--text-2)}
ul{padding-left:18px} li{margin:3px 0}
.draft{background:#fff4d6;border:1px solid #fab219;color:#0b0b0b;border-radius:10px;padding:10px 14px;margin:12px 0;font-size:14px}
.heat td.c{text-align:center;font-variant-numeric:tabular-nums;font-size:12px;padding:6px 2px;border:2px solid var(--surface)}
.v-pass{color:var(--good)} .v-warn{color:#b07800} .v-fail{color:var(--critical)}
.src{font-size:12px;color:var(--text-2)}
/* bổ sung cho website (kết hợp với templates/bulletin/_style.css) */
.wrap{max-width:960px;margin:0 auto;padding:0 16px}
main.wrap{padding-top:16px;padding-bottom:48px}
.site-head{border-bottom:1px solid var(--border);background:var(--surface);position:sticky;top:0;z-index:5}
.site-head .wrap{display:flex;align-items:center;justify-content:space-between;gap:12px;min-height:56px;flex-wrap:wrap}
.logo{font-weight:800;font-size:19px;color:var(--text);text-decoration:none;letter-spacing:-.01em}
.logo span{color:var(--vn)}
nav{display:flex;gap:14px;flex-wrap:wrap;font-size:14px}
nav a{color:var(--text-2);text-decoration:none;padding:4px 0}
nav a[aria-current="page"],nav a:hover{color:var(--text);border-bottom:2px solid var(--vn)}
nav a.lang{border:1px solid var(--border);border-radius:999px;padding:3px 10px}
.preview-bar{background:#fff4d6;color:#0b0b0b;text-align:center;font-size:13px;padding:6px}
.intro h1{font-size:28px;margin:8px 0 4px}
.kicker{color:var(--text-2);font-size:13px;text-transform:uppercase;letter-spacing:.04em;margin:0}
a{color:var(--vn)}
.weekly-card,.cta{margin:24px 0}
.cta{display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap}
.btn{display:inline-block;background:var(--vn);color:#fff;border:0;border-radius:8px;padding:10px 16px;font-weight:600;text-decoration:none;cursor:pointer;font-size:15px}
.btn[disabled]{opacity:.6;cursor:wait}
.form{display:grid;gap:12px;max-width:560px;margin-top:12px}
.form label{display:grid;gap:4px;font-size:14px;color:var(--text-2)}
.form input,.form textarea{font:inherit;padding:9px 10px;border:1px solid var(--border);border-radius:8px;background:var(--surface);color:var(--text)}
.form .check{display:flex;gap:8px;align-items:flex-start;font-size:13px}
.form .check input{margin-top:3px}
.hp{position:absolute;left:-9999px;width:1px;height:1px;opacity:0}
.form-msg{min-height:1.5em;font-size:14px}
.form-msg.ok{color:var(--good)} .form-msg.err{color:var(--critical)}
.list{list-style:none;padding:0} .list li{padding:6px 0;border-bottom:1px solid var(--border)}
.prose{max-width:760px} .prose h2{margin-top:28px} .prose p,.prose li{line-height:1.65}
.site-foot{border-top:1px solid var(--border);margin-top:40px;padding:18px 0;font-size:13px;color:var(--text-2)}
.site-foot .links{display:flex;gap:14px;flex-wrap:wrap}
.site-foot a{color:var(--text-2)}