/* ===== TocDoMang theme ===== */
:root{
	--bg:#0b1220; --bg2:#111c33; --card:#16233d; --line:rgba(255,255,255,.08);
	--text:#e8eefc; --muted:#9fb0d0; --brand:#3b82f6; --brand2:#22d3ee; --accent:#22d3ee;
	--radius:16px;
}
*{box-sizing:border-box}
body{margin:0;font-family:-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,"Noto Sans",sans-serif;
	background:var(--bg);color:var(--text);line-height:1.6}
a{color:var(--brand2);text-decoration:none}
a:hover{text-decoration:underline}
img{max-width:100%;height:auto}
.container{max-width:1140px;margin:0 auto;padding:0 20px}
.center{text-align:center}

/* Header */
.site-header{background:rgba(10,16,28,.85);backdrop-filter:blur(8px);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:50}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:68px}
.site-title{display:flex;align-items:center;gap:8px;font-size:22px;font-weight:800;color:#fff}
.site-title:hover{text-decoration:none}
.logo-icon{color:var(--brand2)}
.nav-menu,.footer-menu{list-style:none;display:flex;gap:24px;margin:0;padding:0}
.nav-menu a{color:var(--muted);font-weight:600}
.nav-menu a:hover{color:#fff;text-decoration:none}

/* Hero */
.hero{padding:48px 0 8px;text-align:center;background:radial-gradient(1200px 400px at 50% -50px,rgba(34,211,238,.12),transparent)}
.hero-title{font-size:34px;margin:0 0 10px;font-weight:800}
.hero-sub{color:var(--muted);max-width:640px;margin:0 auto;font-size:17px}

/* Speedtest box */
.speedtest-section{padding:24px 0 8px}
.speedtest-box{max-width:560px;margin:0 auto;text-align:center}
.st-gauge-wrap{position:relative;width:420px;max-width:90vw;margin:0 auto}
.st-gauge{width:100%;height:auto;display:block}
.st-gauge-center{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;pointer-events:none}
.st-current-value{font-size:52px;font-weight:800;line-height:1;font-variant-numeric:tabular-nums}
.st-current-unit{color:var(--muted);font-size:16px;margin-top:4px}
.st-current-phase{margin-top:10px;color:var(--brand2);font-weight:600;font-size:14px;min-height:18px}

.st-start-btn{margin:18px auto 6px;display:inline-flex;align-items:center;justify-content:center;
	min-width:200px;height:56px;border:0;border-radius:999px;cursor:pointer;
	font-size:17px;font-weight:800;letter-spacing:.5px;color:#04111f;
	background:linear-gradient(90deg,var(--brand2),var(--brand));
	box-shadow:0 10px 30px rgba(59,130,246,.35);transition:transform .15s,box-shadow .15s}
.st-start-btn:hover{transform:translateY(-2px);box-shadow:0 14px 36px rgba(59,130,246,.45)}
.st-start-btn.running{background:linear-gradient(90deg,#f87171,#ef4444);color:#fff}

.st-results{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin:26px 0 6px}
.st-result-item{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:14px 8px}
.st-result-icon{font-size:20px;color:var(--brand2)}
.st-result-label{color:var(--muted);font-size:13px;margin:4px 0}
.st-result-value{font-size:22px;font-weight:800;font-variant-numeric:tabular-nums}
.st-result-value small{font-size:12px;color:var(--muted);font-weight:600}
.st-meta{color:var(--muted);font-size:14px;margin-top:14px}
.st-meta strong{color:var(--text)}

/* Info cards */
.info-section{padding:40px 0}
.info-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.info-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:20px}
.info-card h3{margin:0 0 8px;font-size:17px}
.info-card p{margin:0;color:var(--muted);font-size:14px}

/* Sections */
.section-title{font-size:24px;margin:0 0 20px;text-align:center}
.recent-section{padding:20px 0 50px}

/* Post grid */
.post-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.post-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
.post-card-link{color:inherit;display:block}
.post-card-link:hover{text-decoration:none}
.post-card-thumb img{width:100%;height:180px;object-fit:cover;display:block}
.post-card-body{padding:16px}
.post-card-title{font-size:18px;margin:0 0 8px}
.post-card-meta{color:var(--muted);font-size:13px;margin-bottom:8px}
.post-card-excerpt{color:var(--muted);font-size:14px;margin:0}

/* Blog layout */
.blog-section{padding:40px 0}
.content-sidebar{display:grid;grid-template-columns:1fr 300px;gap:32px}
.content-area--wide{max-width:820px;margin:0 auto}
.page-title{font-size:28px;margin:0 0 24px}
.single-title{font-size:32px;margin:0 0 10px}
.single-meta{color:var(--muted);font-size:14px;margin-bottom:18px}
.single-thumb{margin:0 0 20px;border-radius:var(--radius);overflow:hidden}
.single-content{font-size:17px}
.single-content h2{margin-top:1.6em}
.single-content img{border-radius:12px}
.sidebar .widget{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:18px;margin-bottom:20px}
.widget-title{margin:0 0 12px;font-size:16px}
.sidebar ul{list-style:none;padding:0;margin:0}
.sidebar li{padding:6px 0;border-bottom:1px solid var(--line)}

/* Pagination */
.pagination{margin-top:30px;display:flex;justify-content:center}
.pagination .page-numbers{display:inline-block;padding:8px 14px;margin:0 4px;border:1px solid var(--line);border-radius:8px;color:var(--text)}
.pagination .current{background:var(--brand);border-color:var(--brand);color:#fff}

/* Footer */
.site-footer{background:var(--bg2);border-top:1px solid var(--line);margin-top:40px}
.footer-inner{display:flex;justify-content:space-between;gap:24px;padding:36px 20px;flex-wrap:wrap}
.footer-about{max-width:380px}
.footer-about p{color:var(--muted);font-size:14px}
.footer-menu{flex-direction:column;gap:10px}
.footer-menu a{color:var(--muted)}
.footer-bottom{border-top:1px solid var(--line);padding:16px 0;text-align:center;color:var(--muted);font-size:13px}

/* Responsive */
@media(max-width:880px){
	.content-sidebar{grid-template-columns:1fr}
	.info-grid{grid-template-columns:repeat(2,1fr)}
	.post-grid{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:560px){
	.hero-title{font-size:26px}
	.st-results{grid-template-columns:repeat(2,1fr)}
	.info-grid,.post-grid{grid-template-columns:1fr}
	.main-nav{display:none}
}