/*
Theme Name: Kituvip
Version: 1.0.0
Requires at least: 6.4
Tested up to: 7.1
Requires PHP: 8.1
Text Domain: kituvip
License: GNU General Public License v2 or later
License URI: https://www.gnu.org/licenses/gpl-2.0.html
*/

/* ==========================================================================
   Single stylesheet: tokens -> base -> layout -> components -> responsive
   ========================================================================== */

:root{
  --accent:#7c3aed;
  --accent-dark:#5b21b6;
  --accent-soft:#f3ebff;
  --ink:#111722;
  --ink-strong:#15161c;
  --muted:#5b6779;
  --soft:#8d99ab;
  --line:#dbe2ec;
  --line-soft:#f0f3f8;
  --bg:#eaeef4;
  --card:#fff;
  --field:#f8fafd;
  --ok:#0f766e;      --ok-bg:#effaf7;
  --warn:#c2410c;    --warn-bg:#fff7ed;
  --info:#1d4ed8;    --info-bg:#eef3ff;
  --amber:#b45309;   --amber-bg:#fffbeb;
  --bad:#b91c1c;     --bad-bg:#fef2f2;
  --r-lg:20px; --r-md:16px; --r-sm:12px;
  --shell:1240px;
  --pad:20px;        /* desktop shell padding */
  --pad-sm:14px;     /* mobile shell padding  */
}

/* ---------- base ---------- */
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;background:var(--bg);color:var(--ink);
  font-family:Manrope,system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:17px;line-height:1.6;overflow-x:hidden;
}
h1,h2,h3,h4{font-family:Sora,Manrope,system-ui,sans-serif;letter-spacing:-.02em;margin:0}
h1{font-size:38px;line-height:1.14;font-weight:800}
h2{font-size:29px;line-height:1.18;font-weight:800}
h3{font-size:20px;line-height:1.3;font-weight:700}
h4{font-size:17px;font-weight:700}
p{font-size:17px;line-height:1.68;margin:0 0 14px}
p:last-child{margin-bottom:0}
li{font-size:17px;line-height:1.7}
a{color:var(--accent);text-decoration:none}
a:hover{color:var(--accent-dark);text-decoration:underline}
button,input,textarea,select{font:inherit;color:inherit}
button{cursor:pointer}
img,svg{max-width:100%}
img{height:auto}
table{border-collapse:collapse;width:100%;table-layout:fixed}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.muted{color:var(--muted)}
.soft{color:var(--soft)}
.nowrap{white-space:nowrap}
.tabnum{font-variant-numeric:tabular-nums}
.center{text-align:center}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.skip{position:absolute;left:-9999px;top:0;z-index:100;background:#fff;padding:10px 16px;border-radius:0 0 10px 0}
.skip:focus{left:0}

/* ---------- layout ---------- */
.sh{max-width:var(--shell);margin:0 auto;padding:0 var(--pad)}
.sec{padding:32px 0 8px}
.sec-tight{padding:18px 0 8px}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;flex-wrap:wrap;margin-bottom:18px}
.sec-head p{margin:8px 0 0;color:var(--soft)}
.grid{display:grid;gap:14px}
.g2{grid-template-columns:1fr 1fr}
.g3{grid-template-columns:repeat(3,1fr)}
.g4{grid-template-columns:repeat(4,1fr)}
.g5{grid-template-columns:1.5fr 1fr 1.1fr 1fr 1.3fr}
.hero-grid{display:grid;grid-template-columns:1.55fr 1fr;gap:18px;padding:26px 0 8px}
.side-grid{display:grid;grid-template-columns:1fr 330px;gap:20px;align-items:start}
/* Cột của khu vực bài viết. Phải là class chứ không phải style nội tuyến: style nội tuyến
   thắng mọi rule trong tệp này nên media query gộp cột bên dưới sẽ không có tác dụng. */
.side-grid-art{padding:16px 0 8px}
.side-grid-toc{grid-template-columns:1fr 320px}
.side-grid-solo{grid-template-columns:1fr}
/* Ô của lưới mặc định là min-width:auto, nghĩa là không co hẹp hơn bề rộng nội dung
   nhỏ nhất — một cái bảng min-width:520px bên trong là đủ để đẩy cả cột rộng ra và
   làm trang tràn ngang trên điện thoại. min-width:0 trả quyền co lại cho cột, phần
   bảng quá khổ đã có .table-scroll cuộn ngang riêng. */
.side-grid>*{min-width:0}
.stack{display:flex;flex-direction:column;gap:18px}
.stack-sm{display:flex;flex-direction:column;gap:12px}
.row-flex{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.spacer{flex:1}
.mt-16{margin-top:16px}
.mb-12{margin-bottom:12px}

/* ---------- card ---------- */
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:0 1px 2px rgba(16,24,40,.04)}
.card-pad{padding:28px}
.card-pad-sm{padding:20px}
.card-dark{background:var(--ink-strong);border-color:var(--ink-strong);color:#fff}
.card-dark h2,.card-dark h3{color:#fff}
.card-dark p{color:#b9bcc9}
.card-accent{background:linear-gradient(160deg,var(--accent),var(--accent-dark));border:0;color:#fff}
.card-accent h3{color:#fff}
.card-accent p{color:#ded0ff}

/* ---------- placeholder art ---------- */
.ph{background-image:repeating-linear-gradient(135deg,#e6e8f1 0 9px,#dee1ee 9px 18px);display:grid;place-items:center;border-radius:var(--r-sm);overflow:hidden}
.ph span{font:600 12px/1.4 ui-monospace,Menlo,monospace;color:#8b90a3;letter-spacing:.04em;text-align:center;padding:6px}
.ph img{width:100%;height:100%;object-fit:cover;display:block}
.ph-round{border-radius:50%}

/* ---------- buttons, chips, tags ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:1.5px solid var(--line);background:#fff;color:var(--ink);border-radius:var(--r-sm);padding:12px 18px;font-size:16px;font-weight:700;text-decoration:none}
.btn:hover{text-decoration:none;border-color:#c6d0e0}
.btn-primary{border:0;background:var(--accent);color:#fff}
.btn-primary:hover{background:var(--accent-dark);color:#fff}
.btn-dark{border:0;background:var(--ink-strong);color:#fff}
.btn-dark:hover{color:#fff;background:#000}
.btn-sm{padding:9px 14px;font-size:14.5px;border-radius:10px}
.btn-lg{padding:14px 22px;font-size:17px}
.btn-block{display:flex;width:100%}
.btn[disabled],.btn.is-done{background:#f5f8fc;border:1px solid var(--line);color:var(--soft);cursor:default}
.chip{border:1.5px solid #dde4ee;background:#fff;color:#3c4759;border-radius:11px;padding:10px 15px;font-size:15px;font-weight:700;text-decoration:none;display:inline-block}
.chip:hover{text-decoration:none;color:#3c4759;border-color:#c6d0e0}
.chip.is-on{border-color:var(--accent);background:rgba(124,58,237,.08);color:var(--accent)}
.chip-pill{border-radius:999px;padding:8px 14px;font-size:14.5px}
.tag{display:inline-block;font-size:12px;font-weight:800;letter-spacing:.05em;text-transform:uppercase;padding:5px 9px;border-radius:6px;color:var(--accent);background:var(--accent-soft)}
a.tag:hover{text-decoration:none;color:var(--accent-dark)}
.tag-warn{color:var(--warn);background:var(--warn-bg)}
.tag-ok{color:var(--ok);background:var(--ok-bg)}
.tag-info{color:var(--info);background:var(--info-bg)}
.tag-amber{color:var(--amber);background:var(--amber-bg)}
.pill{display:inline-block;font-size:14px;font-weight:700;padding:5px 11px;border-radius:999px;background:#f4f6fa;border:1px solid #e4e9f1;color:#3c4759}
a.pill:hover{text-decoration:none;border-color:var(--accent);color:var(--accent)}
.pill-ok{color:var(--ok);background:var(--ok-bg);border-color:#cbe9e1}
.pill-amber{color:var(--amber);background:var(--amber-bg);border-color:#f4e3bd}
.pill-bad{color:var(--bad);background:var(--bad-bg);border-color:#f6d3d3}

/* ---------- fields ---------- */
.field{display:flex;align-items:center;gap:10px;border:1.5px solid #d6deea;background:var(--field);border-radius:var(--r-sm);padding:0 14px;height:50px}
.field input{flex:1;min-width:0;border:0;background:transparent;outline:none;font-size:16px;font-weight:600}
.input{height:54px;padding:0 16px;border:1.5px solid #d6deea;border-radius:13px;background:var(--field);font-size:17px;font-weight:600;outline:none;width:100%}
.textarea{width:100%;min-height:100px;resize:vertical;padding:14px;border:1.5px solid #d6deea;border-radius:13px;background:var(--field);font-size:16px;outline:none}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:40;background:#fff;border-bottom:1px solid #e8e8ef}
.site-header .bar{height:64px;display:flex;align-items:center;gap:24px}
.logo{display:flex;align-items:flex-end;gap:5px;text-decoration:none;color:var(--ink-strong);flex:none}
.logo:hover{text-decoration:none;color:var(--ink-strong)}
.logo b{font-family:Sora,sans-serif;font-weight:800;font-size:23px;letter-spacing:-.02em;line-height:1}
.logo .vip{position:relative;display:inline-flex;align-items:center;justify-content:center;background:var(--accent);border-radius:6px;padding:3px 9px 4px}
.logo .vip i{position:absolute;top:-13px;left:50%;transform:translateX(-50%);line-height:0}
.logo .vip span{font-family:Sora,sans-serif;font-weight:800;font-size:19px;color:#fff;line-height:1}
.logo-sm b{font-size:21px}
.logo-sm .vip span{font-size:17px}
.nav{display:flex;gap:19px;align-items:center;height:64px;margin:0;padding:0;list-style:none}
.nav li{position:relative;height:100%;display:flex;align-items:center}
.nav a{position:relative;height:100%;display:flex;align-items:center;font-size:15px;font-weight:600;white-space:nowrap;color:#3f4250;text-decoration:none}
.nav a:hover{color:var(--accent);text-decoration:none}
.nav .current-menu-item>a,.nav .current_page_item>a,.nav a.is-active{color:var(--accent)}
.nav .current-menu-item>a::after,.nav .current_page_item>a::after,.nav a.is-active::after{content:"";position:absolute;left:-4px;right:-4px;bottom:0;height:3px;background:var(--accent);border-radius:3px 3px 0 0}
.nav .new{position:absolute;top:-12px;right:-22px;background:var(--accent);color:#fff;font-size:9px;font-weight:800;letter-spacing:.05em;padding:2px 5px;border-radius:5px}
.nav .sub-menu{display:none;position:absolute;top:100%;left:-14px;min-width:200px;background:#fff;border:1px solid var(--line);border-radius:12px;padding:8px;list-style:none;margin:0;box-shadow:0 10px 30px rgba(16,24,40,.1)}
.nav li:hover>.sub-menu,.nav li:focus-within>.sub-menu{display:block}
.nav .sub-menu li{height:auto;display:block}
.nav .sub-menu a{height:auto;padding:8px 10px;border-radius:8px;display:block}
.nav .sub-menu a:hover{background:var(--accent-soft)}
.nav .sub-menu a::after{display:none}
.icon-btn{width:36px;height:36px;border-radius:50%;border:1px solid #e4e4ee;background:#fff;display:grid;place-items:center}
.header-cta{display:flex;align-items:center;gap:14px;flex:none}

/* ---------- name tool ---------- */
.result{border:1.5px dashed #c9d4e6;border-radius:var(--r-md);background:linear-gradient(180deg,#f9f6ff,#f2ecfd);padding:20px;display:flex;align-items:center;gap:14px;flex-wrap:wrap}
.result .label{font-size:13px;font-weight:800;color:#7b879a;text-transform:uppercase;letter-spacing:.07em;margin-bottom:6px}
.result .out{font-size:26px;font-weight:400;line-height:1.35;word-break:break-word}
.recent{border:1px solid #dde4ee;background:#fff;border-radius:999px;padding:7px 13px;font-size:15px;font-weight:400}
.recent:hover{border-color:var(--accent)}
.stat{background:#1b2433;border:1px solid #26324a;border-radius:13px;padding:13px 14px}
.stat b{display:block;font-family:Sora,sans-serif;font-size:21px;font-weight:700;color:#fff}
.stat span{font-size:13px;color:#9aa8bd}

.kv-bar{gap:10px;margin:18px 0 14px;flex-wrap:nowrap}
.kv-bar .input{flex:1;min-width:0}   /* let the field shrink on a 320px screen */
.kv-bar .btn{height:54px;flex:none}
.kv-chips{gap:8px;margin-bottom:16px}
.kv-recent{margin-top:16px}
.kv-recent-label{font-size:14px;font-weight:600;color:#7b879a}
.kv-note{font-size:14px;color:var(--soft);margin-top:12px}

.kv-out{padding-top:8px}
.kv-block{margin-top:18px}
.kv-block>h3{display:flex;align-items:center;gap:9px;margin-bottom:12px;font-size:19px}
.kv-block>h3 .kv-name{color:var(--accent)}
.kv-grid{display:flex;flex-wrap:wrap;gap:10px}
.kv-item{flex:0 1 auto;max-width:100%;display:flex;flex-direction:column;align-items:flex-start;gap:4px;text-align:left;background:#fff;border:1px solid #dde4ee;border-radius:13px;padding:11px 14px;line-height:1.5}
.kv-item:hover{border-color:var(--accent);box-shadow:0 4px 14px rgba(124,58,237,.12)}
.kv-item .v{font-size:19px;overflow-wrap:anywhere}
.kv-item .k{font-size:12px;font-weight:700;letter-spacing:.04em;text-transform:uppercase;color:var(--soft)}
.kv-emoji-grid{display:flex;flex-wrap:wrap;gap:8px}
.kv-emoji{flex:0 1 auto;max-width:100%;border:1px solid #dde4ee;background:#fff;border-radius:10px;min-width:44px;min-height:44px;padding:9px 12px;font-size:19px;line-height:1.4;display:inline-flex;align-items:center;justify-content:center}
.kv-emoji:hover{border-color:var(--accent);background:var(--accent-soft)}
.kv-load{display:flex;align-items:center;gap:10px;color:var(--soft);font-size:15px;font-weight:600;padding:14px 0}
.kv-spin{width:16px;height:16px;border:2px solid #d9e0ec;border-top-color:var(--accent);border-radius:50%;animation:kvspin .7s linear infinite}
@keyframes kvspin{to{transform:rotate(360deg)}}
.kv-chip-vote{border:0;background:transparent;font-size:13px;font-weight:700;color:var(--soft);padding:2px 0;display:inline-flex;gap:5px;align-items:center}
.kv-chip-vote:hover,.kv-chip-vote.is-on{color:var(--accent)}
.kv-add{display:flex;gap:10px;flex-wrap:wrap}
.kv-add .input{flex:1;min-width:200px;height:50px}
.kv-msg{font-size:14.5px;font-weight:600;margin-top:10px}
.kv-msg.is-ok{color:var(--ok)}
.kv-msg.is-bad{color:var(--bad)}
.kv-meta{font-size:12.5px;color:var(--soft)}
.kv-suggest{display:flex;align-items:center;gap:10px;flex-wrap:wrap;font-size:15.5px}

/* ---------- leaderboard ---------- */
.podium{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.podium-card{position:relative;display:flex;flex-direction:column;align-items:center;gap:12px;text-align:center;border-radius:var(--r-lg);padding:34px 20px 22px;width:100%;background:#fff;border:2px solid var(--line)}
.podium-card .rank{position:absolute;top:-16px;left:50%;transform:translateX(-50%);width:34px;height:34px;border-radius:50%;color:#fff;font-family:Sora,sans-serif;font-weight:700;font-size:16px;display:grid;place-items:center;border:3px solid #fff}
.podium-card .name{font-size:26px;font-weight:400;line-height:1.3;word-break:break-word}
.podium-card .meta{font-size:13.5px;font-weight:700;background:#fff;padding:6px 12px;border-radius:999px;border:1px solid rgba(0,0,0,.08)}
.p1{border-color:var(--warn);background:var(--warn-bg)}
.p1 .rank{background:var(--warn)} .p1 .meta{color:var(--warn)}
.p2{border-color:var(--accent);background:#f6f1ff}
.p2 .rank{background:var(--accent)} .p2 .meta{color:var(--accent)}
.p3{border-color:var(--ok);background:var(--ok-bg)}
.p3 .rank{background:var(--ok)} .p3 .meta{color:var(--ok)}
.rank-row{display:flex;align-items:center;gap:13px;text-align:left;background:#fff;border:1px solid var(--line);border-radius:15px;padding:15px 16px;width:100%}
.rank-row:hover{border-color:var(--accent)}
.rank-row .n{font-family:Sora,sans-serif;font-size:15px;font-weight:700;color:#a3aebe;min-width:20px}
.rank-row .name{font-size:19px;font-weight:400;flex:1;min-width:0;word-break:break-word}
.rank-row .c{font-size:13px;font-weight:600;color:var(--soft)}

/* ---------- name cards ---------- */
.name-card{display:flex;flex-direction:column;text-align:left;background:#fff;border:1px solid #dde4ee;border-radius:15px;padding:14px;width:100%;box-shadow:0 1px 2px rgba(16,24,40,.03)}
.name-card:hover{border-color:var(--accent);box-shadow:0 4px 14px rgba(124,58,237,.12)}
.name-card .top{display:flex;align-items:center;justify-content:space-between;gap:8px}
.name-card .idx{font-family:Sora,sans-serif;font-size:13px;font-weight:700;color:#a3aebe}
.name-card .hot{font-size:12px;font-weight:700;color:var(--warn);background:var(--warn-bg);border:1px solid #fed7aa;padding:3px 8px;border-radius:999px}
.name-card .nm{font-size:20px;font-weight:400;line-height:1.35;word-break:break-word;padding:6px 0 8px}
.name-card .bot{display:flex;align-items:center;justify-content:space-between;gap:8px;font-size:13.5px;font-weight:600;color:var(--soft)}

/* ---------- table ---------- */
.tbl th{text-align:left;padding:14px 8px;font-size:13px;font-weight:800;letter-spacing:.06em;text-transform:uppercase;color:#7b879a;border-bottom:1px solid #e6ebf3}
.tbl td{padding:13px 8px;border-bottom:1px solid var(--line-soft);overflow-wrap:break-word}
.tbl tr:last-child td{border-bottom:0}
.tbl .r{text-align:right}
.tbl .nm{font-size:17px;font-weight:600}
.tbl .num{font-size:16px;font-weight:700}
.tbl .rk{font-family:Sora,sans-serif;font-size:14px;font-weight:700;color:#a3aebe}
.tbl .rk.top{color:var(--warn)}
.up{font-size:14px;font-weight:700;color:var(--ok)}
.down{font-size:14px;font-weight:700;color:var(--bad)}
.w-56{width:56px}.w-150{width:150px}.w-110{width:110px}.w-96{width:96px}

/* ---------- blog list ---------- */
.post-row{display:grid;grid-template-columns:196px 1fr;gap:18px;background:#fff;border:1px solid var(--line);border-radius:var(--r-md);padding:14px;text-decoration:none;color:inherit;align-items:start}
.post-row:hover{text-decoration:none;border-color:var(--accent);box-shadow:0 6px 20px rgba(124,58,237,.1)}
.post-row .thumb{height:132px}
.post-row h3{font-size:20px}
.post-row p{color:var(--muted);margin:8px 0 0;font-size:16px}
.post-row .more{display:inline-flex;align-items:center;gap:6px;margin-top:10px;font-size:15px;font-weight:700;color:var(--accent)}
.feature{display:block;background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;text-decoration:none;color:inherit}
.feature:hover{text-decoration:none;border-color:var(--accent)}
.feature .grid2{display:grid;grid-template-columns:1.1fr 1fr}
.feature .ph{min-height:280px;border-radius:0}
.feature .body{padding:30px;display:flex;flex-direction:column;justify-content:center}
.feature h2{font-size:29px}
.pop-row{display:flex;gap:12px;padding:11px 0;border-bottom:1px solid var(--line-soft);text-decoration:none;color:inherit}
.pop-row:last-child{border-bottom:0}
.pop-row:hover{text-decoration:none;color:var(--accent)}
.pop-row .n{font-family:Sora,sans-serif;font-size:19px;font-weight:800;color:var(--line);min-width:26px}
.pop-row .t{font-size:16px;font-weight:600;line-height:1.35}
.pop-row .v{display:block;font-size:13.5px;color:var(--soft);margin-top:3px}
.pager{display:flex;justify-content:center;align-items:center;gap:8px;padding:22px 0 6px;flex-wrap:wrap}
.pager .page-numbers{min-width:42px;height:42px;border-radius:11px;font-size:16px;font-weight:700;border:1.5px solid #dde4ee;background:#fff;color:#3c4759;display:inline-flex;align-items:center;justify-content:center;padding:0 12px;text-decoration:none}
.pager .page-numbers:hover{text-decoration:none;border-color:var(--accent);color:var(--accent)}
.pager .page-numbers.current{border-color:var(--accent);background:var(--accent);color:#fff}
.pager .dots{border:0;background:transparent}
.card-mini{display:block;background:#fff;border:1px solid var(--line);border-radius:var(--r-md);overflow:hidden;text-decoration:none;color:inherit}
.card-mini:hover{text-decoration:none;border-color:var(--accent)}
.card-mini .ph{height:150px;border-radius:0}
.card-mini .body{padding:16px;display:block}
.card-mini h3{font-size:18px;line-height:1.32;margin:10px 0 6px}

/* ---------- article ---------- */
.progress{position:fixed;top:64px;left:0;right:0;height:3px;z-index:45}
.progress i{display:block;height:3px;background:var(--accent);width:0}
.crumb{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--soft);padding:18px 0 0;flex-wrap:wrap}
.crumb a{color:var(--soft)}
.crumb b{color:#3c4759;font-weight:600}
.article{padding:32px}
.article .lead{color:var(--muted);font-size:19px;margin:14px 0 18px}
.article h2{font-size:26px;margin:28px 0 12px}
.article h3{font-size:20px;margin:20px 0 10px}
.article p,.article li{color:#3c4759}
.article ul,.article ol{padding-left:22px}
.article img{border-radius:var(--r-sm)}
.article figure{margin:22px 0}
.article figcaption{font-size:14px;color:var(--soft);text-align:center;margin-top:8px}
.article table{margin:18px 0}
.article .wp-block-table td,.article .wp-block-table th{border:1px solid var(--line);padding:10px}
.byline{display:flex;align-items:center;gap:14px;flex-wrap:wrap;padding:16px 0;border-top:1px solid var(--line-soft);border-bottom:1px solid var(--line-soft)}
.byline .who{display:flex;flex-direction:column}
.byline .who b{font-size:16px;font-weight:700}
.byline .who span{font-size:14px;color:var(--soft)}
.cover{height:340px;border-radius:var(--r-md);margin:22px 0}
.samples{background:var(--field);border:1px solid #e4e9f1;border-radius:14px;padding:16px;margin:0 0 16px}
.samples .lbl{font-size:13px;font-weight:800;letter-spacing:.06em;text-transform:uppercase;color:var(--soft);margin-bottom:10px}
.sample{border:1px solid #dde4ee;background:#fff;border-radius:10px;padding:10px 14px;font-size:17px;font-weight:400;line-height:1.5}
.sample:hover{border-color:var(--accent)}
.article blockquote,blockquote{margin:22px 0;padding:18px 20px;background:var(--accent-soft);border-left:4px solid var(--accent);border-radius:0 14px 14px 0}
blockquote p{margin:0;color:#3c1a72;font-size:18px;font-weight:600}
.faq{border:1px solid #e4e9f1;border-radius:13px;padding:16px 18px;margin-bottom:10px}
.faq h3{font-size:17.5px;margin:0}
.faq p{margin:8px 0 0}
.toc{display:flex;flex-direction:column;gap:3px}
.toc a{font-size:15.5px;font-weight:600;color:#3c4759;padding:8px 10px;border-radius:9px;text-decoration:none;border-left:3px solid #eef1f6}
.toc a:hover,.toc a.is-on{color:var(--accent);background:var(--accent-soft);border-left-color:var(--accent);text-decoration:none}
.toc .lv3{padding-left:22px;font-size:14.5px}
.sticky{position:sticky;top:84px}
.rel-row{display:flex;gap:12px;padding:10px 0;border-bottom:1px solid var(--line-soft);text-decoration:none;color:inherit;font-size:15.5px;font-weight:600;line-height:1.35;align-items:center}
.rel-row:last-child{border-bottom:0}
.rel-row:hover{text-decoration:none;color:var(--accent)}
.rel-row .ph{width:64px;height:48px;flex:none;border-radius:9px}
.data-box{overflow:hidden;border:1px solid #e4e9f1;border-radius:14px;margin-bottom:16px}
.data-box th{border-bottom:0;background:var(--field)}
.data-box td{border-top:1px solid var(--line-soft);border-bottom:0}

/* ---------- bảng trong bài: luôn cuộn ngang thay vì tràn khung ---------- */
.table-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch;margin:18px 0;border:1px solid var(--line);border-radius:var(--r-sm)}
.table-scroll>table{margin:0;table-layout:auto;min-width:520px}
.table-scroll th,.table-scroll td{white-space:normal}
.article .table-scroll th{background:var(--field)}

/* ---------- feedback ---------- */
.vote{display:flex;flex-direction:column;align-items:flex-start;gap:6px;text-align:left;padding:18px;border-radius:var(--r-md);border:2px solid #e2e8f1;background:#fff;width:100%}
.vote b{font-size:17px;font-weight:700}
.vote span{font-size:14px;color:var(--soft)}
.vote.on-ok{border-color:var(--ok);background:var(--ok-bg)}
.vote.on-warn{border-color:var(--warn);background:var(--warn-bg)}
.vote-inline{display:flex;align-items:center;gap:8px;border:2px solid #e2e8f1;background:#fff;border-radius:13px;padding:12px 18px;font-size:16px;font-weight:700}
.vote-inline.on-ok{border-color:var(--ok);background:var(--ok-bg)}
.vote-inline.on-warn{border-color:var(--warn);background:var(--warn-bg)}

/* ---------- comments ---------- */
.comment-list{list-style:none;margin:0;padding:0}
.comment-list ol{list-style:none;padding-left:22px}
.comment-body{border-top:1px solid var(--line-soft);padding:16px 0}
.comment-meta{font-size:14px;color:var(--soft);margin-bottom:6px}
.comment-meta b{color:#3c4759;font-size:15px}
.comment-form p{margin-bottom:12px}
.comment-form input[type=text],.comment-form input[type=email],.comment-form input[type=url],.comment-form textarea{width:100%;padding:12px 14px;border:1.5px solid #d6deea;border-radius:12px;background:var(--field);outline:none;font-size:16px}
.comment-form .submit{border:0;background:var(--accent);color:#fff;border-radius:var(--r-sm);padding:12px 20px;font-weight:700;font-size:16px}

/* ---------- footer ---------- */
.site-footer{background:#f4f4f7;border-top:1px solid #e6e6ee;margin-top:40px}
.site-footer .top{padding:34px var(--pad) 30px;max-width:var(--shell);margin:0 auto}
.site-footer h4{font-size:13px;color:var(--ink-strong);letter-spacing:.09em;text-transform:uppercase;margin-bottom:13px}
.site-footer .col{display:flex;flex-direction:column;gap:9px;list-style:none;margin:0;padding:0}
.site-footer .col a{font-size:15px;color:#6b6f80}
.site-footer .col a:hover{color:var(--accent)}
.site-footer p{font-size:15px;color:#6b6f80}
.social{display:flex;gap:9px}
.social a{width:32px;height:32px;border-radius:8px;display:grid;place-items:center}
.social .fb{background:#1877f2}.social .tt{background:#15161c}.social .yt{background:#ff0033}.social .ig{background:#e1306c}
.footer-bottom{background:var(--ink-strong)}
.footer-bottom .in{max-width:var(--shell);margin:0 auto;padding:15px var(--pad);display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap}
.footer-bottom span{font-size:14px;color:#b9bcc9}
.foot-search{display:flex;gap:8px}
.foot-search input{flex:1;min-width:0;height:42px;padding:0 12px;border:1px solid #dcdce6;border-radius:8px;background:#fff;font-size:15px;outline:none}
.foot-search button{border:0;height:42px;padding:0 15px;border-radius:8px;background:var(--accent);color:#fff;font-weight:700;font-size:15px}

/* ---------- mobile bottom nav + toast ---------- */
.mobnav{display:none;position:fixed;left:0;right:0;bottom:0;z-index:60;grid-template-columns:repeat(5,1fr);align-items:end;background:rgba(255,255,255,.97);backdrop-filter:blur(14px);border-top:1px solid #e4e4ee;padding:8px 4px 10px;box-shadow:0 -6px 22px rgba(16,24,40,.08)}
.mobnav a{display:flex;flex-direction:column;align-items:center;gap:4px;text-decoration:none;padding:4px 0;color:var(--muted)}
.mobnav a span{font-size:12px;font-weight:600}
.mobnav a.is-active{color:var(--accent)}
.mobnav a.is-active span{font-weight:700}
.mobnav .fab{width:52px;height:52px;border-radius:50%;background:var(--accent);display:grid;place-items:center;margin-top:-24px;box-shadow:0 8px 20px rgba(124,58,237,.42);border:4px solid #fff}
.toast{position:fixed;left:50%;bottom:104px;z-index:80;transform:translateX(-50%);background:var(--ink-strong);color:#fff;font-size:15px;font-weight:600;padding:12px 18px;border-radius:999px;box-shadow:0 10px 30px rgba(16,24,40,.3);max-width:88vw;text-align:center;animation:pop .18s ease-out}
@keyframes pop{from{transform:translate(-50%,14px);opacity:0}to{transform:translate(-50%,0);opacity:1}}

/* ---------- 404 / search ---------- */
.big-code{font-family:Sora,sans-serif;font-size:96px;font-weight:800;line-height:1;color:var(--accent);letter-spacing:-.04em}

/* ==========================================================================
   Responsive — <=1060px: desktop nav becomes the bottom bar;
   <=820px: single column, shell padding 14px so nothing touches the edge.
   ========================================================================== */
@media (max-width:1060px){
  .nav,.header-cta .icon-btn{display:none}
  .mobnav{display:grid}
  body{padding-bottom:82px}
}
@media (max-width:820px){
  :root{--pad:var(--pad-sm)}
  .sh{padding:0 var(--pad-sm)}
  h1{font-size:30px}
  h2{font-size:25px}
  .card{border-radius:14px}
  .card-pad{padding:18px 14px}
  .card-pad-sm{padding:16px 14px}
  .article{padding:20px 14px}
  .sec{padding:26px 0 8px}
  .g2,.g3,.g5,.hero-grid,.side-grid,.side-grid-toc,.podium,.feature .grid2{grid-template-columns:1fr}
  .g4{grid-template-columns:1fr 1fr}
  .kv-grid{grid-template-columns:1fr 1fr}
  .hide-sm{display:none}
  .post-row{grid-template-columns:112px 1fr;gap:14px}
  .post-row .thumb{height:84px}
  .post-row h3{font-size:18px}
  .post-row p{display:none}
  .feature .ph{min-height:180px}
  .feature .body{padding:20px 14px}
  .feature h2{font-size:23px}
  .cover{height:200px}
  .sticky{position:static}
  .result .out{font-size:22px}
  .podium-card .name{font-size:23px}
  .site-footer .top{padding:26px 14px}
  .footer-bottom .in{padding:14px}
  .big-code{font-size:72px}
}
@media (max-width:430px){
  .g4,.kv-grid{grid-template-columns:1fr}
  .post-row{grid-template-columns:1fr}
  .post-row .thumb{height:150px}
  .byline{gap:10px}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation-duration:.01ms !important;transition-duration:.01ms !important}
}

/* ---------- home store filter + header search ---------- */
.name-card.is-hidden{display:none}
.head-search{border-top:1px solid #eceef4;background:#fff;padding:12px 0}
.head-search .field{max-width:640px;margin:0 auto}
.head-search .btn{flex:none}