/*
Theme Name: TechHiHi
Theme URI: https://techihi.com/
Author: TechHiHi
Description: Theme WordPress tin công nghệ được chuyển đổi từ giao diện tĩnh TechHiHi, hỗ trợ 6 chuyên mục, dark mode, mobile bottom nav, tìm kiếm, mục lục bài viết, schema cơ bản và nhập dữ liệu mẫu.
Version: 1.4.3
Requires at least: 6.4
Requires PHP: 7.4
Text Domain: techhihi
*/
/* ===== TechHiHi Design System ===== */
:root{
  --bg:#F6F7FA;--surface:#FFFFFF;--ink:#12161C;--ink-2:#4A5361;--ink-3:#8A93A3;--line:#E4E8EF;
  --brand:#1F52F0;
  --c-news:#1F52F0;--c-app:#0FA36B;--c-game:#E8443A;--c-ai:#7A3FF2;--c-tips:#0E9BB5;--c-review:#F09A0C;
  --radius:14px;--shadow:0 1px 2px rgba(18,22,28,.05),0 8px 24px rgba(18,22,28,.06);
  --font-display:'Space Grotesk','Be Vietnam Pro',sans-serif;
  --font-body:'Be Vietnam Pro',system-ui,sans-serif;
  --font-mono:'JetBrains Mono',monospace;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:var(--font-body);background:var(--bg);color:var(--ink);line-height:1.6}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
.container{max-width:1180px;margin:0 auto;padding:0 20px}
:focus-visible{outline:3px solid var(--brand);outline-offset:2px;border-radius:4px}
@media (prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}

/* Ticker */
.ticker{background:var(--ink);color:#fff;font-size:13px;overflow:hidden;white-space:nowrap}
.ticker-inner{display:inline-flex;gap:40px;padding:8px 0;animation:scroll 32s linear infinite}
.ticker-inner span{display:inline-flex;align-items:center;gap:8px}
.tick-dot{width:7px;height:7px;border-radius:50%;display:inline-block}
@keyframes scroll{from{transform:translateX(0)}to{transform:translateX(-50%)}}

/* Header */
header{background:var(--surface);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:50}
.header-in{display:flex;align-items:center;gap:24px;height:64px}
.logo{display:flex;align-items:center;gap:10px;font-family:var(--font-display);font-weight:700;font-size:23px;letter-spacing:-.5px;flex-shrink:0}
.logo-chip{width:34px;height:34px;border-radius:9px;background:linear-gradient(135deg,var(--brand),#6FA0FF);display:grid;place-items:center;color:#fff;font-size:14px;font-family:var(--font-mono)}
.logo b{color:var(--brand)}
nav.main-nav{display:flex;gap:2px;flex:1}
nav.main-nav a{display:flex;align-items:center;gap:7px;padding:8px 12px;border-radius:99px;font-size:14px;font-weight:500;color:var(--ink-2);transition:.15s;white-space:nowrap}
nav.main-nav a .nd{display:inline-block;width:8px;height:8px;flex:0 0 8px;border-radius:50%}
nav.main-nav a:hover{background:var(--bg);color:var(--ink)}
nav.main-nav a.active{background:var(--ink);color:#fff}
.h-actions{display:flex;align-items:center;gap:10px}
.search-link{display:flex;align-items:center;gap:8px;background:var(--bg);border:1px solid var(--line);border-radius:99px;padding:8px 14px;font-size:13.5px;color:var(--ink-3);min-width:170px}
.btn{display:inline-flex;align-items:center;gap:8px;padding:10px 18px;border-radius:99px;font-weight:600;font-size:14px;border:none;cursor:pointer;transition:.15s}
.btn-primary{background:var(--brand);color:#fff}
.btn-primary:hover{background:#1743CC}
.burger{display:none;background:none;border:none;font-size:22px;cursor:pointer}
.mobile-nav{display:none;background:var(--surface);border-bottom:1px solid var(--line);padding:8px 20px 14px}
.mobile-nav a{display:flex;align-items:center;gap:9px;padding:9px 6px;font-size:15px;font-weight:500;border-bottom:1px solid var(--bg)}
.mobile-nav a .nd{display:inline-block;width:8px;height:8px;flex:0 0 8px;border-radius:50%}
.mobile-nav.open{display:block}

/* Cards & generic */
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden}
.tag{display:inline-flex;align-items:center;gap:7px;font-size:11px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;padding:5px 11px;border-radius:99px;color:#fff;width:max-content}
.section{padding:44px 0 8px}
.sec-head{display:flex;align-items:baseline;justify-content:space-between;margin-bottom:20px}
.sec-head h2{font-family:var(--font-display);font-size:24px;letter-spacing:-.4px;display:flex;align-items:center;gap:11px}
.sec-bar{width:5px;height:24px;border-radius:3px;background:var(--brand)}
.sec-head a{font-size:14px;font-weight:600;color:var(--brand)}

/* Hero */
.hero{padding:34px 0 10px}
.hero-grid{display:grid;grid-template-columns:1.9fr 1fr;gap:22px}
.feature{position:relative;display:flex;flex-direction:column;justify-content:flex-end;min-height:430px;color:#fff;padding:30px;background:
  linear-gradient(180deg,rgba(10,14,22,0) 30%,rgba(10,14,22,.88) 82%),
  radial-gradient(900px 500px at 80% -10%,#3A6BFF55,transparent 60%),
  linear-gradient(135deg,#0E1524,#1B2C52 60%,#12365C)}
.feature::before{content:"";position:absolute;inset:0;background-image:
  linear-gradient(rgba(255,255,255,.045) 1px,transparent 1px),
  linear-gradient(90deg,rgba(255,255,255,.045) 1px,transparent 1px);
  background-size:36px 36px;pointer-events:none}
.feature h1{font-family:var(--font-display);font-size:clamp(26px,3.4vw,38px);line-height:1.16;letter-spacing:-.5px;margin:14px 0 10px;max-width:640px;position:relative}
.feature p{color:#C7D0E0;max-width:560px;font-size:15px;position:relative}
.feature .meta{margin-top:16px;font-size:13px;color:#9FB0CC;display:flex;gap:16px;position:relative}
.side-list{display:flex;flex-direction:column}
.side-item{display:flex;gap:14px;padding:15px 18px;border-bottom:1px solid var(--line);transition:.15s;border-left:3px solid transparent}
.side-item:last-child{border-bottom:none}
.side-item:hover{background:var(--bg)}
.side-item .thumb{width:74px;height:74px;border-radius:10px;flex-shrink:0;display:grid;place-items:center;font-size:26px}
.side-item h3{font-size:14.5px;line-height:1.4;font-weight:600}
.side-item .cat{font-size:11px;font-weight:700;letter-spacing:.07em;text-transform:uppercase;margin-bottom:4px}
.side-item time{font-size:12px;color:var(--ink-3)}

/* Verticals */
.verticals{display:grid;grid-template-columns:repeat(6,1fr);gap:14px}
.v-card{border-radius:var(--radius);background:var(--surface);border:1px solid var(--line);border-top:4px solid var(--vc,var(--brand));padding:18px 16px;transition:.18s;box-shadow:var(--shadow)}
.v-card:hover{transform:translateY(-3px);box-shadow:0 10px 28px rgba(18,22,28,.12)}
.v-icon{width:42px;height:42px;border-radius:11px;display:grid;place-items:center;font-size:20px;margin-bottom:12px;background:var(--vc-bg,#EAF0FE);color:var(--vc)}
.v-card h3{font-size:15px;font-weight:700}
.v-card p{font-size:12.5px;color:var(--ink-3);margin-top:3px;font-family:var(--font-mono)}

/* Posts grid */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.post{display:flex;flex-direction:column;border-left:4px solid var(--pc,var(--brand))}
.post .cover{height:168px;display:grid;place-items:center;font-size:42px}
.post-body{padding:16px 18px 18px}
.post h3{font-size:16.5px;line-height:1.42;margin:10px 0 8px;font-weight:700}
.post p{font-size:13.5px;color:var(--ink-2)}
.post .meta{margin-top:12px;font-size:12.5px;color:var(--ink-3);display:flex;gap:14px}
.post:hover h3{color:var(--brand)}

/* APK zone */
.apk-zone{background:linear-gradient(135deg,#07220F,#0E3D22 55%,#0F5233);border-radius:20px;padding:34px;color:#fff;display:grid;grid-template-columns:1fr 1.35fr;gap:30px;align-items:center;position:relative;overflow:hidden}
.apk-zone::after{content:"⬡";position:absolute;font-size:280px;right:-40px;top:-70px;opacity:.06}
.apk-zone h2{font-family:var(--font-display);font-size:28px;letter-spacing:-.4px;margin-bottom:10px}
.apk-zone>div>p{color:#B6E3C9;font-size:14.5px}
.btn-lite{background:#fff;color:#0E3D22;margin-top:18px}
.apk-table{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14);border-radius:14px;overflow:hidden;backdrop-filter:blur(4px)}
.apk-row{display:flex;align-items:center;gap:14px;padding:13px 18px;border-bottom:1px solid rgba(255,255,255,.1);font-size:14px}
.apk-row:last-child{border-bottom:none}
.apk-ic{width:40px;height:40px;border-radius:10px;display:grid;place-items:center;font-size:19px;background:rgba(255,255,255,.14)}
.apk-row .nm{font-weight:600;flex:1}
.apk-row .nm span{display:block;font-weight:400;font-size:12px;color:#9CCBAF;font-family:var(--font-mono)}
.apk-dl{background:#2ADB7F;color:#06220F;font-size:12.5px;font-weight:700;padding:7px 14px;border-radius:99px}

/* Newsletter */
.news-cta{background:var(--surface);border:1px solid var(--line);border-radius:20px;padding:36px;text-align:center;box-shadow:var(--shadow)}
.news-cta h2{font-family:var(--font-display);font-size:26px;letter-spacing:-.4px}
.news-cta p{color:var(--ink-2);margin:8px 0 20px;font-size:14.5px}
.news-form{display:flex;gap:10px;max-width:460px;margin:0 auto}
.news-form input{flex:1;padding:12px 18px;border-radius:99px;border:1px solid var(--line);font-size:14px;font-family:inherit;background:var(--bg)}

/* Footer */
footer{background:var(--ink);color:#B9C2D0;margin-top:60px;padding:46px 0 26px;font-size:14px}
.f-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:34px;margin-bottom:34px}
.f-grid h4{color:#fff;font-size:14px;margin-bottom:14px;font-family:var(--font-display)}
.f-grid a{display:block;margin-bottom:9px;color:#B9C2D0}
.f-grid a:hover{color:#fff}
.f-bottom{border-top:1px solid #2A3140;padding-top:20px;display:flex;justify-content:space-between;gap:10px;flex-wrap:wrap;font-size:13px;color:#7C8698}

/* ===== Category page ===== */
.cat-banner{border-radius:20px;padding:38px 34px;color:#fff;margin-top:30px;position:relative;overflow:hidden}
.cat-banner h1{font-family:var(--font-display);font-size:34px;letter-spacing:-.5px;display:flex;align-items:center;gap:14px}
.cat-banner p{margin-top:8px;max-width:620px;opacity:.92;font-size:15px}
.cat-banner .count{position:absolute;right:34px;top:34px;font-family:var(--font-mono);font-size:13px;background:rgba(255,255,255,.18);padding:6px 14px;border-radius:99px}
.filters{display:flex;gap:8px;margin:22px 0 4px;flex-wrap:wrap}
.filters a{padding:7px 15px;border-radius:99px;background:var(--surface);border:1px solid var(--line);font-size:13.5px;font-weight:500;color:var(--ink-2)}
.filters a.on{background:var(--ink);color:#fff;border-color:var(--ink)}
.pagination{display:flex;gap:8px;justify-content:center;margin-top:36px}
.pagination a{width:38px;height:38px;display:grid;place-items:center;border-radius:10px;background:var(--surface);border:1px solid var(--line);font-weight:600;font-size:14px}
.pagination a.on{background:var(--brand);color:#fff;border-color:var(--brand)}

/* ===== Article page ===== */
.breadcrumb{font-size:13px;color:var(--ink-3);padding:22px 0 0;display:flex;gap:8px;flex-wrap:wrap}
.breadcrumb a:hover{color:var(--brand)}
.article-layout{display:grid;grid-template-columns:1fr 300px;gap:34px;padding:20px 0 10px;align-items:start}
.article-main{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:34px 38px}
.article-main h1{font-family:var(--font-display);font-size:clamp(24px,3vw,33px);line-height:1.22;letter-spacing:-.5px;margin:14px 0 12px}
.article-meta{display:flex;gap:18px;font-size:13.5px;color:var(--ink-3);padding-bottom:20px;border-bottom:1px solid var(--line);margin-bottom:8px;flex-wrap:wrap}
.article-meta b{color:var(--ink-2);font-weight:600}
.article-body{font-size:16px;color:#2A313C}
.article-body p{margin:16px 0}
.article-body h2{font-family:var(--font-display);font-size:21px;margin:30px 0 4px;letter-spacing:-.3px;display:flex;gap:10px;align-items:center}
.article-body h2::before{content:"";width:5px;height:20px;border-radius:3px;background:var(--pc,var(--brand));flex-shrink:0}
.article-body ul{margin:14px 0 14px 22px}
.article-body li{margin:6px 0}
.article-cover{height:260px;border-radius:12px;display:grid;place-items:center;font-size:74px;margin:20px 0}
.toc{background:var(--bg);border:1px solid var(--line);border-radius:12px;padding:18px 20px;margin:20px 0}
.toc h3{font-size:13px;text-transform:uppercase;letter-spacing:.07em;color:var(--ink-3);margin-bottom:10px}
.toc a{display:block;padding:5px 0;font-size:14px;font-weight:500;color:var(--ink-2)}
.toc a:hover{color:var(--brand)}
.sidebar{position:sticky;top:84px;display:flex;flex-direction:column;gap:20px}
.sb-box{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:20px}
.sb-box h3{font-family:var(--font-display);font-size:16px;margin-bottom:14px;display:flex;align-items:center;gap:9px}
.sb-item{display:flex;gap:12px;padding:10px 0;border-bottom:1px solid var(--bg)}
.sb-item:last-child{border-bottom:none}
.sb-item .n{width:26px;height:26px;border-radius:8px;display:grid;place-items:center;font-family:var(--font-mono);font-size:12px;font-weight:700;flex-shrink:0;color:#fff}
.sb-item h4{font-size:13.5px;line-height:1.4;font-weight:600}
.sb-item h4:hover{color:var(--brand)}
.author-box{display:flex;gap:14px;align-items:center;background:var(--bg);border-radius:12px;padding:16px 18px;margin-top:28px}
.author-avatar{width:52px;height:52px;border-radius:50%;display:grid;place-items:center;font-size:22px;color:#fff;font-weight:700;flex-shrink:0}
.author-box h4{font-size:15px}
.author-box p{font-size:13px;color:var(--ink-2);margin:2px 0 0}
.related{margin-top:34px}
.related h2{font-family:var(--font-display);font-size:20px;margin-bottom:16px}

/* ===== App page ===== */
.app-head{display:flex;gap:24px;align-items:center;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:30px 34px;margin-top:24px;flex-wrap:wrap}
.app-icon{width:96px;height:96px;border-radius:24px;display:grid;place-items:center;font-size:46px;flex-shrink:0}
.app-head h1{font-family:var(--font-display);font-size:28px;letter-spacing:-.4px}
.app-head .dev{color:var(--c-app);font-weight:600;font-size:14px;margin:2px 0 8px}
.app-badges{display:flex;gap:8px;flex-wrap:wrap}
.app-badges span{font-family:var(--font-mono);font-size:12px;background:var(--bg);border:1px solid var(--line);padding:5px 11px;border-radius:99px;color:var(--ink-2)}
.app-cta{margin-left:auto;text-align:center}
.app-cta .btn{font-size:16px;padding:14px 30px}
.app-cta small{display:block;margin-top:8px;color:var(--ink-3);font-size:12px}
.app-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin:20px 0}
.stat{background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:16px;text-align:center}
.stat b{display:block;font-family:var(--font-display);font-size:20px}
.stat span{font-size:12.5px;color:var(--ink-3)}
.screens{display:flex;gap:12px;overflow-x:auto;padding-bottom:6px}
.screen{min-width:150px;height:280px;border-radius:14px;display:grid;place-items:center;font-size:40px;border:1px solid var(--line)}
.changelog{background:var(--bg);border-left:4px solid var(--c-app);border-radius:0 12px 12px 0;padding:16px 20px;margin:16px 0}
.changelog h3{font-size:14px;margin-bottom:8px}
.changelog li{font-size:14px;margin:4px 0 4px 18px;color:var(--ink-2)}

/* Download page */
.dl-box{max-width:560px;margin:60px auto;text-align:center;background:var(--surface);border:1px solid var(--line);border-radius:20px;box-shadow:var(--shadow);padding:44px 36px}
.dl-box .app-icon{margin:0 auto 18px}
.dl-box h1{font-family:var(--font-display);font-size:24px}
.dl-count{font-family:var(--font-mono);font-size:54px;font-weight:700;color:var(--brand);margin:18px 0 6px}
.dl-note{font-size:13.5px;color:var(--ink-3);margin-top:16px}
.dl-safe{display:inline-flex;gap:8px;align-items:center;background:#E9F7F1;color:#0A7A4E;font-size:13px;font-weight:600;padding:8px 16px;border-radius:99px;margin-top:18px}

/* ===== Search ===== */
.search-hero{padding:50px 0 24px;text-align:center}
.search-hero h1{font-family:var(--font-display);font-size:32px;letter-spacing:-.5px}
.search-box{display:flex;gap:10px;max-width:620px;margin:22px auto 0}
.search-box input{flex:1;padding:15px 22px;border-radius:99px;border:2px solid var(--line);font-size:16px;font-family:inherit;background:var(--surface)}
.search-box input:focus{border-color:var(--brand);outline:none}
.techhihi-search-results{max-width:760px;margin:26px auto 0}
.sr-item{display:block;background:var(--surface);border:1px solid var(--line);border-left:4px solid var(--pc,var(--brand));border-radius:12px;padding:18px 22px;margin-bottom:12px}
.sr-item h3{font-size:16px;margin:6px 0 4px}
.sr-item p{font-size:13.5px;color:var(--ink-2)}
.sr-empty{text-align:center;color:var(--ink-3);padding:34px 0}

/* ===== Static pages ===== */
.static-page{max-width:820px;margin:30px auto 0;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:38px 42px}
.static-page h1{font-family:var(--font-display);font-size:30px;letter-spacing:-.5px;margin-bottom:6px}
.static-page .sub{color:var(--ink-3);font-size:14px;margin-bottom:22px}
.static-page h2{font-family:var(--font-display);font-size:20px;margin:26px 0 8px}
.static-page p,.static-page li{font-size:15px;color:#2A313C;margin:10px 0}
.static-page ul,.static-page ol{margin-left:22px}
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:20px}
.contact-card{background:var(--bg);border:1px solid var(--line);border-radius:12px;padding:20px}
.contact-card h3{font-size:15px;margin-bottom:6px}
.contact-card p{font-size:14px;margin:2px 0}

/* Responsive */
@media(max-width:960px){
  nav.main-nav{display:none}
  .burger{display:block}
  .hero-grid{grid-template-columns:1fr}
  .verticals{grid-template-columns:repeat(3,1fr)}
  .grid-3{grid-template-columns:1fr 1fr}
  .apk-zone{grid-template-columns:1fr}
  .f-grid{grid-template-columns:1fr 1fr}
  .article-layout{grid-template-columns:1fr}
  .sidebar{position:static}
  .app-stats{grid-template-columns:1fr 1fr}
  .app-cta{margin-left:0;width:100%}
}
@media(max-width:600px){
  .verticals{grid-template-columns:repeat(2,1fr)}
  .grid-3{grid-template-columns:1fr}
  .search-link{display:none}
  .feature{min-height:340px;padding:22px}
  .news-form{flex-direction:column}
  .article-main{padding:24px 20px}
  .static-page{padding:26px 20px}
  .contact-grid{grid-template-columns:1fr}
  .cat-banner .count{position:static;display:inline-block;margin-top:12px}
}

/* ============================================================
   NÂNG CẤP UX/UI — MOBILE & PC
   ============================================================ */

/* ---- Chế độ tối (tự động theo hệ thống + nút chuyển) ---- */
[data-theme="dark"]{
  --bg:#0F1319;--surface:#161C25;--ink:#E9EDF4;--ink-2:#A9B3C2;--ink-3:#77828F;--line:#252D3A;
  --shadow:0 1px 2px rgba(0,0,0,.35),0 8px 24px rgba(0,0,0,.35);
}
[data-theme="dark"] .cover,[data-theme="dark"] .thumb,[data-theme="dark"] .v-icon,
[data-theme="dark"] .article-cover,[data-theme="dark"] .apk-ic{filter:brightness(.72) saturate(.85)}
[data-theme="dark"] .search-link,[data-theme="dark"] .filters a{background:var(--surface)}
[data-theme="dark"] .toc,[data-theme="dark"] .author-box,[data-theme="dark"] .contact-card,
[data-theme="dark"] .news-form input,[data-theme="dark"] .search-box input{background:#1D2530;border-color:var(--line);color:var(--ink)}
[data-theme="dark"] .ticker{background:#05070B}
[data-theme="dark"] footer{background:#0A0E14}
html{color-scheme:light}
[data-theme="dark"]{color-scheme:dark}

/* Nút chuyển giao diện sáng/tối */
.theme-btn{width:40px;height:40px;border-radius:99px;border:1px solid var(--line);background:var(--bg);cursor:pointer;font-size:17px;display:grid;place-items:center;transition:.15s}
.theme-btn:hover{background:var(--line)}

/* ---- Chuyển động & hover tinh chỉnh (PC) ---- */
.side-item,.sb-item h4,.sr-item,.filters a,.v-card,.post{transition:.18s ease}
.sr-item:hover{transform:translateX(4px);border-color:var(--pc,var(--brand))}
.side-item:hover .thumb{transform:scale(1.06)}
.side-item .thumb{transition:.18s ease}
nav.main-nav a{position:relative}
.post .cover{transition:.25s ease}
.post:hover .cover{transform:scale(1.03)}
.post{overflow:hidden}

/* ---- Thanh tiến độ đọc bài ---- */
.read-progress{position:fixed;top:0;left:0;height:3px;width:0;background:linear-gradient(90deg,var(--brand),#6FA0FF);z-index:200;transition:width .1s linear}

/* ---- Nút về đầu trang ---- */
.to-top{position:fixed;right:18px;bottom:22px;width:46px;height:46px;border-radius:50%;background:var(--ink);color:var(--bg);border:none;font-size:19px;cursor:pointer;opacity:0;pointer-events:none;transition:.25s;z-index:90;box-shadow:0 6px 18px rgba(0,0,0,.25);display:grid;place-items:center}
.to-top.show{opacity:1;pointer-events:auto}
.to-top:hover{transform:translateY(-3px)}
[data-theme="dark"] .to-top{background:#E9EDF4;color:#0F1319}

/* ---- Header tự ẩn khi cuộn xuống (mobile) ---- */
header{transition:transform .28s ease}
@media(max-width:960px){
  header.hide{transform:translateY(-100%)}
}

/* ---- Menu trượt mobile ---- */
.mobile-nav{display:block;max-height:0;overflow:hidden;transition:max-height .3s ease;padding:0 20px;border-bottom:none}
.mobile-nav.open{max-height:480px;padding:8px 20px 14px;border-bottom:1px solid var(--line)}
.mobile-nav a{min-height:46px}

/* ---- Thanh điều hướng đáy kiểu app (chỉ mobile) ---- */
.bottom-nav{display:none}
@media(max-width:960px){
  body{padding-bottom:66px}
  .bottom-nav{display:grid;grid-template-columns:repeat(4,1fr);position:fixed;bottom:0;left:0;right:0;background:var(--surface);border-top:1px solid var(--line);z-index:100;padding-bottom:env(safe-area-inset-bottom)}
  .bottom-nav a,.bottom-nav button{display:flex;flex-direction:column;align-items:center;gap:3px;padding:9px 4px 8px;font-size:11px;font-weight:600;color:var(--ink-3);background:none;border:none;font-family:inherit;cursor:pointer;min-height:56px;justify-content:center}
  .bottom-nav .bi{font-size:20px;line-height:1}
  .bottom-nav a.on{color:var(--brand)}
  .to-top{bottom:80px}
  footer{margin-bottom:0}
}

/* ---- Vùng chạm & chữ trên mobile ---- */
@media(max-width:600px){
  .btn{min-height:44px}
  .news-form input,.search-box input{font-size:16px;min-height:48px}
  .feature h1{font-size:clamp(22px,6vw,28px)}
  .sec-head h2{font-size:20px}
  .article-main h1{font-size:clamp(21px,5.5vw,26px)}
  .article-body{font-size:15.5px}
  .side-item{padding:14px 16px}
  .apk-zone{padding:24px 20px}
  .apk-zone h2{font-size:22px}
  .news-cta{padding:26px 20px}
  .cat-banner{padding:26px 22px}
  .cat-banner h1{font-size:26px}
  .pagination a{width:44px;height:44px}
  .filters a{padding:10px 16px}
  .grid-3{gap:16px}
  .container{padding:0 16px}
}

/* ---- Mục lục thu gọn được trên mobile ---- */
details.toc summary{cursor:pointer;list-style:none;display:flex;align-items:center;justify-content:space-between}
details.toc summary::-webkit-details-marker{display:none}
details.toc summary::after{content:"▾";color:var(--ink-3);transition:.2s}
details.toc[open] summary::after{transform:rotate(180deg)}
details.toc summary h3{margin-bottom:0}
details.toc[open] summary{margin-bottom:10px}

/* ---- Ticker: dừng khi rê chuột (PC) ---- */
.ticker:hover .ticker-inner{animation-play-state:paused}

/* ===== WordPress integration ===== */
.admin-bar header{top:32px}
.admin-bar .read-progress{top:32px}
.wp-site-blocks{padding:0}
.screen-reader-text{position:absolute!important;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.cover.has-image,.article-cover.has-image{padding:0;overflow:hidden;background:var(--bg)!important}
.cover.has-image img,.article-cover.has-image img{width:100%;height:100%;object-fit:cover}
.feature.has-image{background-size:cover;background-position:center}
.feature.has-image::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(10,14,22,.05) 20%,rgba(10,14,22,.9) 88%);z-index:0}
.feature.has-image>*{z-index:1}
.feature>*{position:relative}
.pagination .page-numbers{width:auto;min-width:38px;height:38px;padding:0 12px;display:grid;place-items:center;border-radius:10px;background:var(--surface);border:1px solid var(--line);font-weight:600;font-size:14px}
.pagination .page-numbers.current{background:var(--brand);color:#fff;border-color:var(--brand)}
.article-body img{border-radius:12px;margin:20px auto}
.article-body a,.static-page a{color:var(--brand);font-weight:600}
.article-body blockquote{border-left:4px solid var(--pc,var(--brand));padding:12px 18px;margin:20px 0;background:var(--bg);border-radius:0 10px 10px 0;color:var(--ink-2)}
.article-body pre,.article-body code{font-family:var(--font-mono)}
.article-body pre{overflow:auto;background:#0E1524;color:#EAF0FE;border-radius:12px;padding:16px;margin:18px 0}
.article-body table{width:100%;border-collapse:collapse;margin:18px 0;display:block;overflow-x:auto}
.article-body th,.article-body td{border:1px solid var(--line);padding:10px 12px;text-align:left}
.article-body h3{font-family:var(--font-display);font-size:18px;margin:24px 0 6px}
.page-main{min-height:55vh}
.archive-title-wrap{padding-top:24px}
.search-box button{flex-shrink:0}
.techhihi-search-results .tag{margin-bottom:3px}
.no-results{max-width:760px;margin:30px auto;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:30px;text-align:center}
.no-results p{color:var(--ink-2);margin:8px 0 18px}
.site-nav-menu{list-style:none;display:flex;gap:2px;padding:0;margin:0}
.site-nav-menu li{list-style:none}
.site-nav-menu a{display:flex;align-items:center;gap:7px;padding:8px 12px;border-radius:99px;font-size:14px;font-weight:500;color:var(--ink-2);white-space:nowrap}
.site-nav-menu .current-menu-item>a,.site-nav-menu .current-menu-ancestor>a{background:var(--ink);color:#fff}
.news-form .notice{font-size:13px;margin-top:8px}
.news-form-wrap{max-width:520px;margin:0 auto}
.news-form-wrap .news-form{max-width:none}
.news-success{color:#0A7A4E;font-weight:600;margin-top:10px}
.news-error{color:#C52D2D;font-weight:600;margin-top:10px}
.post-edit-link{display:inline-block;margin-top:15px;color:var(--brand);font-weight:600}
.wp-caption{max-width:100%}.wp-caption-text{font-size:13px;color:var(--ink-3);margin-top:6px}
.aligncenter{margin-left:auto;margin-right:auto}.alignleft{float:left;margin:0 20px 15px 0}.alignright{float:right;margin:0 0 15px 20px}
@media(max-width:782px){.admin-bar header{top:46px}.admin-bar .read-progress{top:46px}}
@media(max-width:600px){#wpadminbar{position:fixed}.alignleft,.alignright{float:none;margin:16px auto}}
[data-theme="dark"] .article-body,[data-theme="dark"] .static-page p,[data-theme="dark"] .static-page li{color:var(--ink-2)}

.thumb.has-image{overflow:hidden}.thumb.has-image img{width:100%;height:100%;object-fit:cover}

/* ============================================================
   TechHiHi v1.1.1 — Ticker chạy liên tục + Header desktop mới
   ============================================================ */

/* Ticker marquee: 2 group giống nhau để vòng lặp không bị giật */
.ticker{
  position:relative;
  width:100%;
  min-height:34px;
  display:flex;
  align-items:center;
  overflow:hidden;
  background:#10161f;
  color:#fff;
}
.ticker::before,.ticker::after{
  content:"";
  position:absolute;
  z-index:2;
  top:0;
  bottom:0;
  width:48px;
  pointer-events:none;
}
.ticker::before{left:0;background:linear-gradient(90deg,#10161f,rgba(16,22,31,0))}
.ticker::after{right:0;background:linear-gradient(270deg,#10161f,rgba(16,22,31,0))}
.ticker-inner{
  display:flex;
  align-items:center;
  flex:none;
  width:max-content;
  min-width:max-content;
  padding:0;
  will-change:transform;
  animation:techhihiTicker var(--ticker-speed,30s) linear infinite;
}
.ticker-group{
  display:flex;
  align-items:center;
  flex:none;
  gap:42px;
  padding:8px 42px 8px 0;
}
.ticker-group span{
  display:inline-flex;
  align-items:center;
  gap:8px;
  flex:none;
  font-size:12.5px;
  font-weight:600;
  line-height:18px;
}
.ticker-group a{transition:opacity .15s ease}
.ticker-group a:hover{opacity:.75}
.ticker:hover .ticker-inner{animation-play-state:paused}
@keyframes techhihiTicker{
  from{transform:translate3d(0,0,0)}
  to{transform:translate3d(-50%,0,0)}
}
[data-theme="dark"] .ticker{background:#05070b}
[data-theme="dark"] .ticker::before{background:linear-gradient(90deg,#05070b,rgba(5,7,11,0))}
[data-theme="dark"] .ticker::after{background:linear-gradient(270deg,#05070b,rgba(5,7,11,0))}

/* Header: rộng, cân đối, ít khoảng trống và rõ khu vực hành động */
#site-header{
  background:rgba(255,255,255,.94);
  border-bottom:1px solid rgba(18,22,28,.08);
  box-shadow:0 5px 22px rgba(18,22,28,.045);
  backdrop-filter:saturate(180%) blur(14px);
  -webkit-backdrop-filter:saturate(180%) blur(14px);
}
#site-header .header-in{
  width:100%;
  max-width:1440px;
  min-height:70px;
  height:70px;
  margin:0 auto;
  padding:0 28px;
  gap:18px;
}
#site-header .logo{
  font-size:22px;
  gap:9px;
  margin-right:4px;
}
#site-header .logo-chip{
  width:36px;
  height:36px;
  border-radius:10px;
  box-shadow:0 6px 16px rgba(31,82,240,.22);
}
#site-header .main-nav{
  min-width:0;
  display:flex;
  align-items:center;
  justify-content:center;
}
#site-header .site-nav-menu{
  display:flex;
  align-items:center;
  justify-content:center;
  gap:3px;
  flex-wrap:nowrap;
}
#site-header .main-nav a,
#site-header .site-nav-menu a{
  min-height:38px;
  padding:8px 11px;
  border-radius:11px;
  font-size:13.5px;
  font-weight:600;
  transition:background .16s ease,color .16s ease,transform .16s ease;
}
#site-header .main-nav a:hover,
#site-header .site-nav-menu a:hover{
  background:#f1f4f9;
  color:var(--ink);
  transform:translateY(-1px);
}
#site-header .main-nav a.active,
#site-header .site-nav-menu .current-menu-item>a,
#site-header .site-nav-menu .current-menu-ancestor>a{
  background:var(--ink);
  color:#fff;
  box-shadow:0 4px 12px rgba(18,22,28,.12);
}
#site-header .h-actions{
  margin-left:auto;
  gap:8px;
  flex:none;
}
#site-header .search-link{
  width:210px;
  min-width:210px;
  min-height:40px;
  padding:8px 14px;
  border-radius:12px;
  background:#f5f7fa;
  border-color:#e5e9f0;
  color:#8a93a3;
  overflow:hidden;
  text-overflow:ellipsis;
  white-space:nowrap;
  transition:border-color .16s ease,background .16s ease,box-shadow .16s ease;
}
#site-header .search-link:hover{
  background:#fff;
  border-color:#cfd6e1;
  box-shadow:0 4px 14px rgba(18,22,28,.06);
}
#site-header .btn-primary{
  min-height:40px;
  padding:9px 16px;
  border-radius:12px;
  box-shadow:0 6px 16px rgba(31,82,240,.2);
}
#site-header .theme-btn{
  width:40px;
  height:40px;
  flex:0 0 40px;
  border-radius:12px;
  background:#f7f8fa;
}
[data-theme="dark"] #site-header{
  background:rgba(22,28,37,.94);
  border-bottom-color:rgba(255,255,255,.07);
  box-shadow:0 5px 22px rgba(0,0,0,.22);
}
[data-theme="dark"] #site-header .main-nav a:hover,
[data-theme="dark"] #site-header .site-nav-menu a:hover{background:#202936}
[data-theme="dark"] #site-header .search-link,
[data-theme="dark"] #site-header .theme-btn{background:#1d2530;border-color:#2b3543}

/* Co lại dần trước khi chuyển sang menu mobile */
@media(max-width:1280px) and (min-width:961px){
  #site-header .header-in{padding:0 20px;gap:12px}
  #site-header .logo{font-size:20px}
  #site-header .main-nav a,#site-header .site-nav-menu a{padding:8px 8px;font-size:12.5px}
  #site-header .search-link{width:44px;min-width:44px;padding:0;justify-content:center;font-size:0}
  #site-header .search-link::before{content:"🔍";font-size:16px}
  #site-header .btn-primary{padding:9px 13px}
}
@media(max-width:960px){
  #site-header .header-in{height:62px;min-height:62px;padding:0 18px}
  #site-header .logo{font-size:20px}
  #site-header .logo-chip{width:34px;height:34px}
  #site-header .h-actions{gap:7px}
  #site-header .search-link{display:none}
  #site-header .btn-primary{display:none}
  #site-header .theme-btn{width:38px;height:38px;flex-basis:38px}
  .ticker-group{gap:30px;padding-right:30px}
  .ticker-group span{font-size:12px}
}

/* Người dùng yêu cầu ticker luôn chạy; chỉ giữ giảm chuyển động cho phần còn lại. */
@media (prefers-reduced-motion:reduce){
  .ticker-inner{animation:techhihiTicker var(--ticker-speed,30s) linear infinite!important}
}


/* ============================================================
   TechHiHi v1.2.0 — Search class isolation
   Khung kết quả dùng .techhihi-search-results để không đụng body.search-results của WordPress.
   ============================================================ */
.techhihi-search-page{
  width:100%;
  max-width:none;
  min-width:0;
}
.techhihi-search-page #site-header,
.techhihi-search-page .ticker,
.techhihi-search-page footer{
  width:100%;
  max-width:none;
}


/* ============================================================
   TechHiHi v1.2.0 — Production news theme enhancements
   ============================================================ */
.site-branding{display:flex;align-items:center;flex:0 0 auto}
.custom-logo-link{display:flex;align-items:center;max-width:210px}
.custom-logo{width:auto;max-width:210px;max-height:46px;object-fit:contain}
.footer-custom-logo .custom-logo-link{max-width:200px}.footer-custom-logo .custom-logo{max-height:52px;filter:none}
.rating-mini{color:#b86b00;font-weight:700}
[data-theme="dark"] .rating-mini{color:#ffc65a}

.techhihi-ad{width:100%;text-align:center;overflow:hidden;margin:22px auto;min-height:1px}
.techhihi-ad.container{padding-left:20px;padding-right:20px}
.techhihi-ad iframe,.techhihi-ad img{max-width:100%}
.techhihi-ad-sidebar{margin:0}

.topic-zone{background:linear-gradient(135deg,#160d28,color-mix(in srgb,var(--topic) 70%,#20133b) 55%,var(--topic))!important}
.topic-zone .topic-label{background:rgba(255,255,255,.16)!important}
.topic-zone>div:first-child>p{color:#e6dcf7!important}
.topic-zone .btn-lite{color:#25143e!important}
.topic-zone .apk-dl{background:#fff;color:#25143e}

.share-row{display:flex;align-items:center;gap:8px;flex-wrap:wrap;margin:8px 0 18px;padding-bottom:18px;border-bottom:1px solid var(--line)}
.share-row>span{font-size:13px;font-weight:700;color:var(--ink-3);margin-right:2px}
.share-row a,.share-row button{appearance:none;border:1px solid var(--line);background:var(--bg);color:var(--ink-2);border-radius:9px;padding:7px 10px;font:600 12.5px var(--font-body);cursor:pointer}
.share-row a:hover,.share-row button:hover{border-color:var(--brand);color:var(--brand)}

.review-box{display:grid;grid-template-columns:150px 1fr;gap:22px;margin:30px 0;background:var(--bg);border:1px solid var(--line);border-radius:16px;padding:22px}
.review-score{display:flex;flex-direction:column;align-items:center;justify-content:center;background:var(--surface);border:1px solid var(--line);border-radius:14px;min-height:145px}
.review-score strong{font:700 46px/1 var(--font-display);color:var(--pc,var(--brand))}.review-score span{font-size:13px;color:var(--ink-3)}.review-score small{font-size:11px;color:var(--ink-3);margin-top:7px}
.review-details h2{font:700 19px var(--font-display);margin:0 0 10px}.review-bar{height:8px;background:var(--line);border-radius:99px;overflow:hidden}.review-bar i{display:block;height:100%;background:var(--pc,var(--brand));border-radius:99px}
.review-cols{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-top:16px}.review-cols h3{font-size:14px;margin:0 0 6px}.review-cols ul{margin:0;padding-left:20px}.review-cols li{font-size:13.5px;margin:4px 0}.pros-title{color:#0a8a57}.cons-title{color:#c43d34}

.author-info{min-width:0}.author-job{display:block;font-size:12px;color:var(--pc,var(--brand));font-weight:700;margin:1px 0 3px}.author-socials{display:flex;gap:9px;flex-wrap:wrap;margin-top:6px}.author-socials a{font-size:12px;color:var(--brand);font-weight:600}
.sidebar-newsletter{background:linear-gradient(135deg,#0E1524,#1B2C52)!important;border:none!important;color:#fff}.sidebar-newsletter h3{color:#fff!important}.sidebar-newsletter p{font-size:13.5px;color:#C7D0E0;margin-bottom:14px}.sidebar-newsletter .btn{margin:0;color:#1B2C52;background:#fff}

.footer-description{margin-top:12px;font-size:13.5px;max-width:330px}.footer-socials{display:flex;gap:8px;flex-wrap:wrap;margin-top:15px}.footer-socials a{display:inline-flex!important;margin:0!important;padding:5px 9px;border:1px solid #343d4d;border-radius:8px;font-size:12px}.footer-menu{list-style:none;margin:4px 0 0;padding:0}.footer-menu li{list-style:none}

.search-summary{margin-bottom:16px;color:var(--ink-2)}.sr-item small{display:block;color:var(--ink-3);margin-top:7px}.sr-empty strong{display:block;font-size:18px;color:var(--ink);margin-bottom:5px}.sr-empty p{font-size:14px;color:var(--ink-3)}

.comments-area{margin-top:30px;border-top:1px solid var(--line);padding-top:24px}.comments-area>h2{font:700 20px var(--font-display);margin-bottom:16px}.comment-list{list-style:none;margin:0;padding:0}.comment-list li{list-style:none}.comment-body{padding:16px 0;border-bottom:1px solid var(--line)}.comment-author{display:flex;gap:9px;align-items:center}.comment-author img{border-radius:50%}.comment-meta{font-size:12px;color:var(--ink-3);margin:3px 0 8px}.comment-content p{font-size:14px}.comment-respond{margin-top:24px}.comment-respond input:not([type=submit]),.comment-respond textarea{width:100%;border:1px solid var(--line);border-radius:10px;padding:10px;background:var(--bg);color:var(--ink)}.comment-respond input[type=submit]{border:0;border-radius:10px;padding:10px 16px;background:var(--brand);color:#fff;font-weight:700;cursor:pointer}

.widget ul{list-style:none;margin:0;padding:0}.widget li{padding:6px 0;border-bottom:1px solid var(--line);font-size:13.5px}.widget li:last-child{border-bottom:0}

@media(max-width:760px){.review-box{grid-template-columns:1fr}.review-score{min-height:120px}.review-cols{grid-template-columns:1fr}.custom-logo{max-width:160px;max-height:40px}}

.hp-field{position:absolute!important;left:-9999px!important;width:1px!important;height:1px!important;opacity:0!important;pointer-events:none!important}


/* ============================================================
   TechHiHi v1.2.1 — Chấm màu Category trong Menu chính
   ============================================================ */
#site-header .site-nav-menu a .nd{
  display:inline-block;
  width:8px;
  height:8px;
  min-width:8px;
  flex:0 0 8px;
  border-radius:50%;
}
#site-header .site-nav-menu a .nav-label{
  display:inline-block;
  line-height:1.2;
}
#site-header .site-nav-menu .current-menu-item>a .nd,
#site-header .site-nav-menu .current-menu-ancestor>a .nd{
  box-shadow:0 0 0 1px rgba(255,255,255,.18);
}

/* ============================================================
   TechHiHi v1.4.2 — Mobile responsive / horizontal overflow fix
   ============================================================ */
html,
body{
  width:100%;
  max-width:100%;
}
body{
  overflow-x:hidden;
}
.container,
#site-header .header-in,
.hero-grid,
.feature,
.side-list,
.grid-3,
.verticals,
.article-layout,
.article-main,
.post-body,
.apk-row,
.apk-row .nm{
  min-width:0;
}
.side-item>div:last-child{
  min-width:0;
}

@media(max-width:960px){
  /* Rule #site-header .main-nav phía dưới stylesheet từng ghi đè rule mobile cũ. */
  #site-header .main-nav{
    display:none!important;
  }
  #site-header .header-in{
    width:100%;
    max-width:100%;
    padding-left:16px;
    padding-right:16px;
    gap:10px;
  }
  #site-header .site-branding{
    min-width:0;
    max-width:calc(100% - 104px);
    overflow:hidden;
  }
  #site-header .h-actions{
    margin-left:auto;
    flex:0 0 auto;
  }
  #site-header .burger{
    display:grid;
    place-items:center;
    width:38px;
    height:38px;
    flex:0 0 38px;
  }
  .hero-grid{
    grid-template-columns:minmax(0,1fr);
  }
  .feature .meta{
    flex-wrap:wrap;
    gap:6px 12px;
  }
  .feature h1,
  .feature p,
  .side-item h3,
  .post h3,
  .apk-row .nm{
    overflow-wrap:anywhere;
    word-break:normal;
  }
}

@media(max-width:600px){
  .hero{
    padding-top:20px;
  }
  .feature{
    width:100%;
    max-width:100%;
    min-height:320px;
    padding:20px;
  }
  .feature .meta span{
    min-width:0;
  }
  .side-item{
    width:100%;
    max-width:100%;
    gap:12px;
    padding:13px 14px;
  }
  .side-item .thumb{
    width:64px;
    height:64px;
  }
  .tag{
    max-width:100%;
  }
  .apk-row{
    gap:10px;
    padding:12px 14px;
  }
  .apk-row .nm{
    min-width:0;
  }
  .apk-dl{
    flex:0 0 auto;
  }
}

/* ============================================================
   TechHiHi v1.4.3 — Mobile QA hardening
   ============================================================ */
/* Pagination can contain several numbered links on narrow screens. */
.pagination{
  flex-wrap:wrap;
  max-width:100%;
}
.pagination .page-numbers{
  flex:0 0 auto;
}

/* Prevent the search input's intrinsic width from pushing the submit button off-screen. */
.search-box{
  width:100%;
  min-width:0;
}
.search-box input{
  min-width:0;
}

/* Long URLs / words in posts and breadcrumbs must stay inside the article column. */
.breadcrumb>*{
  min-width:0;
}
.breadcrumb span,
.article-body,
.article-body p,
.article-body li,
.article-body a{
  overflow-wrap:anywhere;
  word-break:normal;
}
.article-body pre,
.article-body table{
  max-width:100%;
}

@media(max-width:960px){
  /* Keep content above the iPhone/Android bottom safe area. */
  body{
    padding-bottom:calc(66px + env(safe-area-inset-bottom));
  }
  /* Works correctly whether the optional newsletter shortcut is enabled or disabled. */
  .bottom-nav{
    display:flex;
  }
  .bottom-nav>a,
  .bottom-nav>button{
    flex:1 1 0;
    min-width:0;
  }
}

@media(max-width:600px){
  /* Four footer columns are too compressed on phone widths. */
  .f-grid{
    grid-template-columns:1fr;
    gap:24px;
  }
}