/* AI Thạo Việc v0.4.1 · Theo Brand Kit v1.0 "Nhịp làm việc mới" (tokens: cobalt, lime, ink, white, fog; radius editorial 0 / button 4 / utility 8).
   Font Be Vietnam Pro (SIL OFL 1.1) lưu trên site, không gọi dịch vụ ngoài. Logo: vector trong assets/brand. Biểu tượng: Phosphor Icons (MIT). */
@font-face{font-family:"Be Vietnam Pro";font-style:normal;font-weight:400;font-display:swap;src:url(/assets/fonts/be-vietnam-pro-vietnamese-400-normal.woff2) format("woff2");unicode-range:U+0102-0103,U+0110-0111,U+0128-0129,U+0168-0169,U+01A0-01A1,U+01AF-01B0,U+0300-0301,U+0303-0304,U+0308-0309,U+0323,U+0329,U+1EA0-1EF9,U+20AB;}
@font-face{font-family:"Be Vietnam Pro";font-style:normal;font-weight:500;font-display:swap;src:url(/assets/fonts/be-vietnam-pro-vietnamese-500-normal.woff2) format("woff2");unicode-range:U+0102-0103,U+0110-0111,U+0128-0129,U+0168-0169,U+01A0-01A1,U+01AF-01B0,U+0300-0301,U+0303-0304,U+0308-0309,U+0323,U+0329,U+1EA0-1EF9,U+20AB;}
@font-face{font-family:"Be Vietnam Pro";font-style:normal;font-weight:600;font-display:swap;src:url(/assets/fonts/be-vietnam-pro-vietnamese-600-normal.woff2) format("woff2");unicode-range:U+0102-0103,U+0110-0111,U+0128-0129,U+0168-0169,U+01A0-01A1,U+01AF-01B0,U+0300-0301,U+0303-0304,U+0308-0309,U+0323,U+0329,U+1EA0-1EF9,U+20AB;}
@font-face{font-family:"Be Vietnam Pro";font-style:normal;font-weight:700;font-display:swap;src:url(/assets/fonts/be-vietnam-pro-vietnamese-700-normal.woff2) format("woff2");unicode-range:U+0102-0103,U+0110-0111,U+0128-0129,U+0168-0169,U+01A0-01A1,U+01AF-01B0,U+0300-0301,U+0303-0304,U+0308-0309,U+0323,U+0329,U+1EA0-1EF9,U+20AB;}
@font-face{font-family:"Be Vietnam Pro";font-style:normal;font-weight:400;font-display:swap;src:url(/assets/fonts/be-vietnam-pro-latin-400-normal.woff2) format("woff2");unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD;}
@font-face{font-family:"Be Vietnam Pro";font-style:normal;font-weight:500;font-display:swap;src:url(/assets/fonts/be-vietnam-pro-latin-500-normal.woff2) format("woff2");unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD;}
@font-face{font-family:"Be Vietnam Pro";font-style:normal;font-weight:600;font-display:swap;src:url(/assets/fonts/be-vietnam-pro-latin-600-normal.woff2) format("woff2");unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD;}
@font-face{font-family:"Be Vietnam Pro";font-style:normal;font-weight:700;font-display:swap;src:url(/assets/fonts/be-vietnam-pro-latin-700-normal.woff2) format("woff2");unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD;}

/* ================= Biến thiết kế: đổi ở đây là đổi toàn site ================= */
:root{
  --bg:#FFFFFF; --ink:#10131A; --muted:#5B626F; --line:#D8DDE6; --soft:#F2F4F7;
  --accent:#2448FF; --accent-deep:#1733C9; --hi:#D6F43C; --foot:#10131A;
  --r:0px; --rb:4px; --pill:8px; --motion:180ms;
  --display:"Be Vietnam Pro",system-ui,sans-serif;
  --body:"Be Vietnam Pro",system-ui,-apple-system,"Segoe UI",sans-serif;
  --wrap:1280px;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-padding-top:16px}
body{margin:0;background:var(--bg);color:var(--ink);font:400 17px/1.6 var(--body)}
img,video{display:block;max-width:100%;height:auto}
a{color:inherit}
p a,li a,dd a,.lead a{color:var(--accent);text-underline-offset:3px}
.wrap{width:min(100% - 32px,var(--wrap));margin-inline:auto}
.narrow{max-width:720px}
.visually-hidden{position:absolute!important;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0;padding:0;margin:-1px}
.skip{position:absolute;left:-9999px;top:8px;z-index:60;background:var(--ink);color:#fff;padding:8px 14px;border-radius:var(--rb)}
.skip:focus{left:16px}
:focus-visible{outline:3px solid var(--accent);outline-offset:2px}
.ic{width:1em;height:1em;fill:currentColor;flex:none;vertical-align:-.125em}
.muted{color:var(--muted)}.small{font-size:14px}.d-block{display:block}.is-hidden{display:none!important}
code{font:14px ui-monospace,SFMono-Regular,Menlo,monospace;background:var(--soft);padding:1px 6px;border-radius:var(--rb)}

/* ---------- dòng tiện ích ---------- */
.util{background:var(--ink);color:#E5E7EB;font-size:13px}
.util-in{display:flex;justify-content:space-between;align-items:center;gap:12px;padding:7px 0;min-height:34px}
.preview-bar{color:var(--hi);font-weight:700}
.preview-bar a{color:#fff;font-weight:500;margin-left:6px}

/* ---------- đầu trang ---------- */
.mast-in{display:grid;grid-template-columns:auto 1fr minmax(260px,380px);align-items:center;gap:24px;padding:16px 0}
.logo{display:inline-flex;align-items:center;margin:0}
.logo img{height:40px;width:auto}
.site-footer .logo img{height:34px}
.mast-tag{margin:0;font-weight:600;color:var(--muted);font-size:14px;line-height:1.3}
.mast-tag span{white-space:nowrap}
.header-search{position:relative;display:flex}
.header-search input{width:100%;font:inherit;font-size:15px;padding:10px 16px 10px 42px;border:2px solid var(--ink);border-radius:var(--rb);background:#fff}
.header-search>.ic{position:absolute;left:15px;top:50%;transform:translateY(-50%);font-size:18px}
.search-toggle{display:none;border:0;background:var(--soft);width:44px;height:44px;border-radius:var(--rb);font-size:20px;cursor:pointer;color:var(--ink)}
.navbar{background:var(--accent);color:#fff}
.nav-in{display:flex;justify-content:space-between;align-items:center;gap:20px}
.navbar ul{list-style:none;margin:0;padding:0;display:flex}
.site-nav a{display:block;padding:14px 18px;font-weight:700;font-size:16px;text-decoration:none;white-space:nowrap}
.site-nav li:first-child a{padding-left:0}
.site-nav a:hover,.site-nav a[aria-current]{box-shadow:inset 0 -4px 0 var(--hi)}
.nav-aux a{display:block;padding:14px 12px;font-size:14px;font-weight:500;text-decoration:none;opacity:.92}
.nav-aux a:hover{opacity:1;text-decoration:underline}
.topics{border-bottom:1px solid var(--line)}
.topics-in{display:flex;align-items:center;gap:16px;padding:12px 0;overflow-x:auto;scrollbar-width:none}
.topics-in::-webkit-scrollbar{display:none}
.topics-h{flex:none;font-weight:700;font-size:13px;text-transform:uppercase;letter-spacing:.08em;color:var(--accent)}
.topics ul{list-style:none;margin:0;padding:0;display:flex;gap:8px}
.topics a{display:block;white-space:nowrap;padding:6px 14px;border-radius:var(--pill);background:var(--soft);font-size:14px;font-weight:500;text-decoration:none;color:var(--ink)}
.topics a:hover{background:var(--hi)}

/* ---------- chip, nhãn, meta, nút ---------- */
.chip{display:inline-flex;align-items:center;gap:6px;margin:0;padding:6px 14px;border-radius:var(--pill);font-size:13px;font-weight:700;letter-spacing:.02em;background:var(--soft);color:var(--ink)}
.chip-hi{background:var(--hi);color:var(--ink)}
.kicker{display:flex;align-items:center;gap:6px;margin:0 0 6px;font-size:12px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--accent)}
.kicker a{color:inherit;text-decoration:none}
.meta-line,.article-badges{display:flex;flex-wrap:wrap;align-items:center;gap:6px 14px;margin:12px 0 0;font-size:14px;color:var(--muted)}
.meta-dot{display:inline-flex;align-items:center;gap:6px}
.badge{display:inline-block;padding:3px 10px;border-radius:var(--pill);font-size:12.5px;font-weight:700;border:1.5px solid currentColor;line-height:1.4}
.badge-chua-thu{color:#92400E;background:#FEF3C7;border-color:#FCD34D}
.badge-doi-chieu-tai-lieu{color:#1E3A8A;background:#DBEAFE;border-color:#93C5FD}
.badge-da-thu{color:#14532D;background:#DCFCE7;border-color:#86EFAC}
.badge-can-kiem-lai{color:#9A3412;background:#FFEDD5;border-color:#FDBA74}
.badge-loi-thoi{color:#991B1B;background:#FEE2E2;border-color:#FCA5A5}
.badge-trang-thai{color:#374151;background:#F3F4F6;border-color:#D1D5DB;border-style:dashed}
.credit{margin:8px 0 0;font-size:12.5px;color:var(--muted)}
.btn{display:inline-flex;align-items:center;gap:10px;padding:13px 22px;border:0;border-radius:var(--rb);font:700 15.5px var(--body);text-decoration:none;white-space:nowrap;cursor:pointer;transition:transform var(--motion) ease,background var(--motion) ease}
.btn:active{transform:translateY(1px) scale(.98)}
.btn .ic{transition:transform var(--motion) ease}.btn:hover .ic{transform:translateX(3px)}
.btn-ink{background:var(--ink);color:#fff}
.btn-hi{background:var(--hi);color:var(--ink)}
.btn-accent{background:var(--accent);color:#fff}.btn-accent:hover{background:var(--accent-deep)}
.stretch{text-decoration:none}
.stretch:after{content:"";position:absolute;inset:0;z-index:1}

/* ---------- video + nút dừng ---------- */
.vwrap{position:relative;border-radius:var(--r);overflow:hidden;background:var(--ink);box-shadow:0 0 0 1px var(--line)}
.vwrap video,.vwrap img{width:100%;aspect-ratio:16/9;object-fit:cover}
.vbtn{position:absolute;right:14px;bottom:14px;z-index:4;display:inline-flex;align-items:center;gap:6px;padding:7px 12px;border:0;border-radius:var(--rb);background:rgba(16,19,26,.82);color:#fff;font:700 13px var(--body);cursor:pointer}
.vbtn .ic{font-size:14px}.vbtn .ic:nth-of-type(2){display:none}
.vbtn.is-paused .ic:nth-of-type(1){display:none}.vbtn.is-paused .ic:nth-of-type(2){display:inline}

/* ---------- trang chủ: định nghĩa gọn và bộ chọn bài ngay trong trang ---------- */
.home-intro{padding-top:26px}
.home-intro h1{font-family:var(--display);font-size:clamp(28px,3.2vw,40px);font-weight:700;line-height:1.2;letter-spacing:-.025em;margin:0 0 10px}
.home-definition{max-width:72ch;margin:0;font-size:16px;line-height:1.6}
.home-intro-actions{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:14px 24px;align-items:start;margin-top:16px}
.article-picker{min-width:0}
.article-picker>summary{width:fit-content;max-width:100%;list-style:none;white-space:normal}
.article-picker>summary::-webkit-details-marker{display:none}
.picker-toggle{font-size:22px;line-height:1;font-weight:400}
.article-picker[open] .picker-toggle{transform:rotate(45deg)}
.home-featured-link{display:inline-flex;align-items:center;gap:8px;min-height:46px;font-size:15px;font-weight:700;text-decoration:underline;text-underline-offset:4px}
.picker-panel{margin-top:16px;padding:22px;border-top:3px solid var(--accent);background:var(--soft)}
.picker-panel [hidden]{display:none!important}
.picker-choices{min-width:0;border:0;margin:0;padding:0}
.picker-question{padding:0;margin:0;font-size:22px;font-weight:700;line-height:1.3}
.picker-hint{margin:6px 0 14px;font-size:14px;color:var(--muted)}
.picker-options{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}
.picker-option{display:flex;align-items:center;justify-content:space-between;gap:14px;min-height:56px;padding:14px 16px;border:1px solid var(--line);border-radius:var(--rb);background:#fff;color:var(--ink);font:600 15px/1.45 var(--body);text-align:left;cursor:pointer}
.picker-option:hover{border-color:var(--accent);background:#EAEEFF}
.picker-option .ic{color:var(--accent)}
.picker-result h2{margin:8px 0 10px;max-width:40ch;font-size:clamp(22px,2.2vw,28px);line-height:1.3;letter-spacing:-.015em}
.picker-result>p:not(.kicker){max-width:72ch;margin:0;font-size:16px}
.picker-result-actions{display:flex;flex-wrap:wrap;align-items:center;gap:12px 22px;margin-top:18px}
.picker-reset{min-height:44px;padding:8px 0;border:0;background:transparent;color:var(--ink);font:600 15px var(--body);text-decoration:underline;text-underline-offset:4px;cursor:pointer}
.picker-fallback-list{list-style:none;padding:0;margin:0;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px 24px}
.picker-fallback-list a{display:inline-flex;align-items:center;gap:8px;font-size:15px;font-weight:700}
.picker-fallback-list p{margin:6px 0 0;font-size:14px;color:var(--muted)}

/* ---------- trang chủ: cụm bài chính ---------- */
.lead-grid{display:grid;grid-template-columns:minmax(0,8fr) minmax(0,4fr);gap:32px;padding:28px 0 44px}
.lead{position:relative}
.lead-media{position:relative;border-radius:var(--r);overflow:hidden;color:#fff;background:var(--ink);aspect-ratio:16/10}
.lead-media video,.lead-media>img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.lead-media .vbtn{top:14px;bottom:auto}
.lead-over{position:absolute;left:0;right:0;bottom:0;padding:120px 32px 28px;background:linear-gradient(0deg,rgba(16,19,26,.95) 0%,rgba(16,19,26,.78) 45%,rgba(16,19,26,0) 100%)}
.lead-h{font-family:var(--display);font-weight:700;font-size:clamp(32px,3.9vw,54px);line-height:1.12;letter-spacing:-.025em;margin:14px 0 10px;max-width:20ch}
.lead-media:hover .lead-h a{text-decoration:underline;text-decoration-color:var(--hi);text-decoration-thickness:4px;text-underline-offset:6px}
.lead-d{margin:0;max-width:60ch;color:#E5E7EB}
.lead-over .meta-line{color:#E5E7EB}
.side-h{margin:0 0 14px;font-family:var(--display);font-weight:700;font-size:24px;border-bottom:3px solid var(--ink);padding-bottom:8px}
.side-card{display:grid;grid-template-columns:128px 1fr;gap:14px;margin:0 0 20px}
.side-media img{width:128px;aspect-ratio:16/11;object-fit:cover}
.side-title{margin:0;font-family:var(--display);font-weight:600;font-size:18px;line-height:1.25}
.side-title a{text-decoration:none}.side-title a:hover{color:var(--accent)}
.side-card .meta-line{margin-top:6px;font-size:13px}
.side-start{margin-top:6px;padding:18px 20px;border-radius:var(--r);background:var(--soft)}
.side-start-h{margin:0;font-family:var(--display);font-weight:700;font-size:22px}
.side-start p{margin:4px 0 14px}

/* ---------- dải cobalt ---------- */
.band{background:var(--accent);color:#fff}
.band-in{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,7fr);gap:44px;align-items:center;padding:56px 0}
.band-h{font-family:var(--display);font-weight:700;font-size:clamp(32px,3.6vw,48px);line-height:1.15;letter-spacing:-.025em;margin:16px 0 18px}
.band-list{margin:0 0 26px;padding:0;list-style:none}
.band-list li{position:relative;padding-left:30px;margin:0 0 10px}
.band-list li:before{content:"";position:absolute;left:0;top:.42em;width:16px;height:9px;border-left:4px solid var(--hi);border-bottom:4px solid var(--hi);transform:rotate(-45deg)}
.band-media{margin:0}
.band-media figcaption{margin-top:8px;font-size:12.5px;color:#DCE3FF}

/* Dải ba bước thay phần cuộc họp lặp; giữ nhịp màu nhưng không thêm một hero. */
.home-method{background:var(--accent);color:#fff}
.home-method-in{padding:28px 0 30px}
.home-method h2{margin:0 0 20px;font-size:24px;font-weight:700;line-height:1.25;letter-spacing:-.015em}
.home-steps{list-style:none;padding:0;margin:0;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:28px}
.home-steps li{display:flex;align-items:start;gap:14px}
.home-step-number{display:grid;place-items:center;flex:none;width:32px;height:32px;background:var(--hi);color:var(--ink);font-weight:700;font-size:18px}
.home-steps h3{margin:0 0 5px;font-size:17px;font-weight:700;line-height:1.4}
.home-steps p{margin:0;font-size:14px;line-height:1.55;color:#E8ECFF}

/* ---------- ba đường vào ---------- */
.routes{padding:56px 0 20px}
.sec-head{display:flex;justify-content:space-between;align-items:end;gap:20px;border-bottom:3px solid var(--ink);padding-bottom:10px;margin-bottom:22px}
.sec-head h2,.sec-title{margin:0;font-family:var(--display);font-weight:700;font-size:clamp(26px,2.6vw,34px);line-height:1.15;letter-spacing:-.02em}
.sec-title{border-bottom:3px solid var(--ink);padding-bottom:8px;margin:40px 0 20px}
.sec-head p{margin:0;color:var(--muted)}
.route-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.route-grid-2{grid-template-columns:repeat(2,minmax(0,1fr))}
.route-tile{position:relative;display:block;border-radius:var(--r);overflow:hidden;color:#fff;text-decoration:none;aspect-ratio:4/5;background:var(--ink)}
.route-tile-sm{aspect-ratio:16/9}
.route-tile img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform .5s cubic-bezier(.2,.7,.2,1)}
.route-tile:hover img{transform:scale(1.04)}
.route-over{position:absolute;left:0;right:0;bottom:0;display:flex;flex-direction:column;padding:90px 22px 22px;background:linear-gradient(0deg,rgba(16,19,26,.95) 0%,rgba(16,19,26,.75) 55%,rgba(16,19,26,0) 100%)}
.route-over .kicker{color:var(--hi)}
.route-t{margin:0 0 8px;font-family:var(--display);font-weight:700;font-size:24px;line-height:1.15;letter-spacing:-.01em}
.route-d{margin:0 0 14px;font-size:15px;color:#E5E7EB}
.route-go{align-self:flex-start;display:inline-flex;align-items:center;gap:8px;font-weight:700;font-size:14.5px;border-bottom:3px solid var(--hi);padding-bottom:2px}

/* ---------- hiểu để chọn đúng ---------- */
.explain{display:grid;grid-template-columns:minmax(0,6fr) minmax(0,6fr);gap:40px;align-items:center;padding:48px 0 64px}
.explain-media img{border-radius:var(--r);aspect-ratio:16/10;object-fit:cover;width:100%}
.explain h2{font-family:var(--display);font-weight:700;font-size:clamp(28px,3vw,40px);line-height:1.15;letter-spacing:-.02em;margin:14px 0}
.explain h2 a{text-decoration:none}.explain h2 a:hover{color:var(--accent)}
.explain p{max-width:56ch}
.src{font-size:14px;color:var(--muted)}
.explain .btn{margin-top:18px}

/* ---------- tin AI đáng chú ý (v0.6.10) ---------- */
.news{padding:48px 0 64px}
.news .sec-head p{max-width:60ch}
.news-grid{display:grid;grid-template-columns:minmax(0,7fr) minmax(0,5fr);gap:40px;align-items:start}
.news-grid-1{grid-template-columns:minmax(0,8fr)}
.news-media{display:block}
.news-media img{border-radius:var(--r);aspect-ratio:16/9;object-fit:cover;width:100%}
.news-meta{margin:14px 0 6px;font-size:13.5px;font-weight:600;color:var(--muted)}
.news-title{margin:0;font-family:var(--display);font-weight:700;font-size:20px;line-height:1.25;letter-spacing:-.01em}
.news-title-lead{font-size:clamp(24px,2.4vw,30px);line-height:1.18}
.news-title a{color:inherit;text-decoration:none}.news-title a:hover{color:var(--accent)}
.news-sum{margin:8px 0 0;max-width:60ch;color:var(--ink)}
.news-list{list-style:none;margin:0;padding:0;display:grid;gap:0}
.news-list li{border-top:1px solid var(--line);padding:0 0 20px}
.news-list li:first-child{border-top:0}
.news-list li:first-child .news-meta{margin-top:0}
.news-more{margin:28px 0 0}
.meta-date .news-date{font-weight:600}
@media (max-width: 900px){
  .news{padding:32px 0 48px}
  .news-grid{grid-template-columns:1fr;gap:8px}
  .news-list li:first-child{border-top:1px solid var(--line)}
  .news-list li:first-child .news-meta{margin-top:14px}
}

/* ---------- dải tin cậy ---------- */
.trust{background:var(--ink);color:#fff}
.trust-in{padding:44px 0}
.trust h2{margin:0 0 20px;font-family:var(--display);font-weight:700;font-size:32px}
.trust-list{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.trust-list p{margin:10px 0 0;color:#D1D5DB;font-size:15.5px}
.trust-more{margin:24px 0 0;color:#D1D5DB;font-size:15px}
.trust-more a{color:var(--hi)}

/* ---------- chân trang ---------- */
.site-footer{background:var(--foot);color:#E5E7EB}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px;padding:40px 0 28px}
.footer-who{margin:8px 0 12px;font-size:14px;color:#D1D5DB}
.footer-cta{display:inline-flex;align-items:center;gap:8px;color:#fff!important;font-weight:700;text-decoration:none;border-bottom:2px solid var(--hi)}
.footer-h{margin:0 0 8px;font-weight:700;font-size:13px;letter-spacing:.08em;text-transform:uppercase;color:#9CA3AF}
.site-footer ul{list-style:none;margin:0;padding:0}
.site-footer li a{display:block;padding:4px 0;text-decoration:none;color:#E5E7EB}
.site-footer li a:hover{color:var(--hi)}
.build-line{margin-left:8px}

/* ---------- đầu trang con (danh sách, trang tĩnh, tìm kiếm) ---------- */
.page-hero{background:var(--accent);color:#fff}
.page-hero-in{display:grid;grid-template-columns:1fr;gap:36px;align-items:center;padding:40px 0 44px}
.page-hero-in.has-img{grid-template-columns:minmax(0,6fr) minmax(0,5fr)}
.page-hero h1{font-family:var(--display);font-weight:700;font-size:clamp(32px,3.6vw,48px);line-height:1.15;letter-spacing:-.025em;margin:16px 0 12px}
.page-hero .lead{font-size:18px;max-width:60ch;color:#E8ECFF}
.page-hero .lead p{margin:0 0 8px}
.page-hero .lead a{color:#fff}
.page-hero-img{margin:0}
.page-hero-img img{border-radius:var(--r);aspect-ratio:16/10;object-fit:cover;width:100%}
.page-hero-img figcaption{font-size:12.5px;color:#DCE3FF;margin-top:8px}
.list-wrap{padding:28px 0 56px}
.list-count{margin:0 0 12px;font-weight:700;color:var(--muted)}
.filter{display:flex;flex-wrap:wrap;gap:8px;margin:0 0 20px}
.chip-btn{font:600 14px var(--body);padding:7px 14px;border-radius:var(--pill);border:1.5px solid var(--line);background:#fff;cursor:pointer}
.chip-btn.is-active{background:var(--ink);color:#fff;border-color:var(--ink)}
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.card-grid-2{grid-template-columns:repeat(2,minmax(0,1fr))}
.card{display:flex;flex-direction:column;border:1px solid var(--line);border-radius:var(--r);overflow:hidden;background:#fff}
.card-media img{width:100%;aspect-ratio:16/10;object-fit:cover}
.row-body{padding:16px 18px 20px}
.card-title{margin:0 0 8px;font-family:var(--display);font-weight:700;font-size:21px;line-height:1.2}
.card-title a{text-decoration:none}.card-title a:hover{color:var(--accent)}
.card-desc{margin:0;color:var(--muted);font-size:15.5px}
.other-routes{margin-top:48px}
.other-h{margin:0 0 12px;font-family:var(--display);font-weight:700;font-size:26px}
.empty{padding:20px;border-radius:var(--r);background:var(--soft)}

/* ---------- bài viết ---------- */
.g-hero{background:var(--accent);color:#fff}
.g-hero-in{display:grid;grid-template-columns:minmax(0,7fr) minmax(0,5fr);gap:40px;align-items:center;padding:32px 0 60px}
.crumbs{display:flex;gap:8px;font-size:14px;margin-bottom:16px}
.crumbs a{text-decoration:none;opacity:.92;color:#fff}.crumbs a:hover{text-decoration:underline}
.g-hero h1{font-family:var(--display);font-weight:700;font-size:clamp(32px,3.6vw,48px);line-height:1.15;letter-spacing:-.025em;margin:16px 0 14px;max-width:20ch}
.article-desc{margin:0;font-size:18px;max-width:58ch;color:#E8ECFF}
.g-hero .article-badges{color:#E8ECFF}
.g-cover{margin:0}
.g-cover img{border-radius:var(--r);aspect-ratio:4/3;object-fit:cover;width:100%}
.g-cover img.is-graphic{object-fit:contain;background:var(--accent)}
.g-cover figcaption{font-size:12.5px;color:#DCE3FF;margin-top:8px}
.quick{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px;margin-top:-30px;position:relative}
.quick>div{background:#fff;border:2px solid var(--ink);border-radius:var(--r);padding:16px 18px}
.quick-h{margin:0 0 6px;font-size:12px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--accent)}
.quick p:last-child{margin:0;font-size:15px}
.tag{display:inline-block;padding:2px 10px;border-radius:var(--pill);background:var(--soft);font-size:13.5px;margin:0 4px 4px 0}
.notice-warn{margin:20px 0 0;padding:14px 18px;border-radius:var(--r);background:#FFEDD5;border:1.5px solid #FDBA74}
.article-grid{display:grid;grid-template-columns:260px minmax(0,1fr);gap:56px;padding:40px 0 24px}
.article-side{position:sticky;top:20px;align-self:start;display:grid;gap:20px;max-height:calc(100vh - 40px);max-height:calc(100dvh - 40px);overflow-y:auto;overscroll-behavior:contain;scrollbar-width:thin;scrollbar-color:var(--line) transparent;padding-right:6px}
.box-title{margin:0 0 10px;font-weight:700;font-size:13px;letter-spacing:.08em;text-transform:uppercase}
.toc ol{margin:0;padding:0;list-style:none;border-left:3px solid var(--line)}
.toc li a{display:flex;gap:8px;padding:6px 0 6px 14px;margin-left:-3px;border-left:3px solid transparent;font-size:14.5px;text-decoration:none;color:var(--muted)}
.toc a[data-step]:before{content:attr(data-step);flex:none;display:grid;place-items:center;width:20px;height:20px;border-radius:var(--rb);background:var(--soft);font-size:12px;font-weight:700;color:var(--ink)}
.toc li a:hover{color:var(--ink);border-left-color:var(--accent)}
.toc-mobile{display:none;margin:0 0 20px;border:2px solid var(--ink);border-radius:var(--r);padding:12px 16px}
.toc-mobile summary{font-weight:700;cursor:pointer}
.toc-mobile ol{margin-top:10px}
.meta-box{border-top:3px solid var(--ink);padding-top:12px;font-size:14px}
.meta-box dl{margin:0}
.meta-box dl>div{padding:8px 0;border-bottom:1px solid var(--line)}
.meta-box dt{font-weight:700;font-size:12.5px;color:var(--muted);text-transform:uppercase;letter-spacing:.06em}
.meta-box dd{margin:4px 0 0}
.meta-box .d-block{margin-top:4px}
.article-main{min-width:0;max-width:740px}
.clip{margin:0 0 28px}
.clip figcaption,.fig figcaption{font-size:13px;color:var(--muted);margin-top:8px}
.article-body{font-size:18px;line-height:1.65}
.article-body h2{font-family:var(--display);font-weight:700;font-size:28px;line-height:1.2;letter-spacing:-.015em;margin:52px 0 16px;scroll-margin-top:24px}
.article-body h2.step{display:flex;gap:16px;align-items:center}
.article-body h2.step:before{content:attr(data-step);flex:none;display:grid;place-items:center;width:48px;height:48px;border-radius:var(--pill);background:var(--hi);color:var(--ink);font-size:24px}
.article-body h3{font-family:var(--display);font-weight:700;font-size:22px;margin:32px 0 10px}
.article-body ul,.article-body ol{padding-left:1.3em}.article-body li{margin:.35em 0}
.article-body ul.checklist{list-style:none;padding:0}
.article-body ul.checklist li{position:relative;padding-left:34px}
.article-body ul.checklist li:before{content:"";position:absolute;left:0;top:.3em;width:20px;height:20px;border-radius:var(--rb);border:2px solid var(--ink)}
.article-body blockquote{margin:20px 0;padding:18px 22px;background:var(--soft);border-radius:var(--r);border-left:6px solid var(--accent);font-size:17px}
.article-body blockquote p{margin:0 0 6px}.article-body blockquote p:last-child{margin:0}
.article-body .fig{margin:24px 0}
.article-body .fig img{border:1px solid var(--line);border-radius:var(--r);background:#fff;width:100%}
.table-wrap{overflow-x:auto;margin:18px 0}
.article-body table{width:100%;border-collapse:collapse;font-size:15.5px}
.article-body th{background:var(--ink);color:#fff;text-align:left;font-weight:700;padding:10px 12px}
.article-body td{border-bottom:1px solid var(--line);padding:10px 12px;vertical-align:top}
.article-body figure.prompt{margin:22px 0;background:var(--ink);color:#F9FAFB;border-radius:var(--r);overflow:hidden}
.article-body figure.prompt figcaption{display:flex;justify-content:space-between;align-items:center;gap:10px;padding:10px 12px 10px 18px;font-size:13px;font-weight:700;letter-spacing:.04em;text-transform:uppercase;color:var(--hi)}
.copy-btn{font:700 14px var(--body);padding:8px 16px;border:0;border-radius:var(--rb);background:var(--hi);color:var(--ink);cursor:pointer;text-transform:none;letter-spacing:0}
.copy-btn:active{transform:scale(.97)}
.copy-btn.is-done{background:#fff}
.article-body pre{margin:0;padding:4px 18px 20px;white-space:pre-wrap;font:15px/1.6 ui-monospace,SFMono-Regular,Menlo,monospace}
.more{padding:24px 0 64px}
.static-body{max-width:760px;padding:36px 0 56px}
.pending-note{display:inline-block;padding:6px 12px;border-radius:var(--r);background:#FEF3C7;color:#92400E;font-weight:700;font-size:15px}

/* ---------- góp ý ---------- */
.gopy-form{padding:32px 0 64px}
.field{margin:0 0 18px}
.field label{display:block;font-weight:700;margin-bottom:6px}
.field input[type=email],.field select,.field textarea{width:100%;font:inherit;padding:12px 14px;border:2px solid var(--ink);border-radius:var(--rb);background:#fff}
.req,.opt{font-weight:500;color:var(--muted);font-size:14px}
.check{display:flex!important;gap:10px;align-items:flex-start;font-weight:500!important}
.check input{margin-top:5px;width:18px;height:18px}
.fine{font-size:13.5px;color:var(--muted);margin:0 0 18px}

/* ---------- tìm kiếm ---------- */
.search-form-page{display:flex;gap:10px;margin:0 0 14px}
.search-form-page input{flex:1;font:inherit;padding:12px 18px;border:2px solid var(--ink);border-radius:var(--rb)}
.suggest{padding-left:1.2em}

/* ---------- bảng thiết kế ---------- */
.sheet{padding:10px 0 60px}
.sheet-logos{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.sheet-logo{display:flex;align-items:end;justify-content:center;gap:18px;padding:36px 20px;border-radius:var(--r);background:var(--soft)}
.sheet-logo-dark{background:var(--accent);color:#fff}
.swatches{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:14px}
.swatch{display:flex;flex-direction:column;gap:4px;font-size:13px}
.swatch-chip{height:84px;border-radius:var(--r);border:1px solid var(--line)}
.swatch-name{font-weight:700;font-size:14px}
.demo-h1{font-family:var(--display);font-weight:700;font-size:48px;line-height:1.15;letter-spacing:-.025em;margin:10px 0}
.demo-h2{font-family:var(--display);font-weight:700;font-size:32px;line-height:1.15;margin:10px 0}
.demo-body{font-size:18px;max-width:62ch}
.btn-row{display:flex;flex-wrap:wrap;gap:12px}

/* ---------- điện thoại ---------- */
@media (max-width: 900px){
  .util-date{display:none}
  .mast-in{grid-template-columns:auto minmax(0,1fr) auto;gap:12px;padding:12px 0}
  .mast-tag{font-size:12px;line-height:1.25}
  .logo img{height:32px}
  .search-toggle{display:grid;place-items:center}
  .header-search{display:none;grid-column:1 / -1}
  .header-search.is-open{display:flex}
  .nav-aux{display:none!important}
  .site-nav{width:100%;justify-content:space-between;gap:10px}
  .site-nav a{padding:12px 0;font-size:14px}
  .lead-grid,.band-in,.explain,.g-hero-in,.article-grid,.page-hero-in.has-img{grid-template-columns:1fr}
  .lead-grid{gap:24px;padding:16px 0 32px}
  .lead-media{aspect-ratio:4/5}
  .lead-over{padding:80px 18px 18px}
  .lead-d{font-size:15.5px}
  .route-grid,.route-grid-2,.trust-list,.footer-grid,.card-grid,.card-grid-2,.sheet-logos{grid-template-columns:1fr}
  .route-tile{aspect-ratio:16/11}
  .sec-head{flex-direction:column;align-items:start}
  .band-in{padding:40px 0;gap:28px}
  .g-hero-in{padding:24px 0 48px;gap:24px}
  .quick{grid-template-columns:1fr 1fr;margin-top:-24px}
  .article-side{position:static;order:2;max-height:none;overflow:visible;padding-right:0}
  .toc-desktop{display:none}
  .toc-mobile{display:block}
  .article-grid{gap:20px;padding-top:24px}
  .article-body{font-size:17px;line-height:1.65}
  .article-body h2{font-size:25px}
  .article-body h2.step:before{width:40px;height:40px;font-size:20px}
  .page-hero-in{padding:28px 0 32px}
  .home-intro{padding-top:20px}
  .home-steps{gap:20px}
  .home-steps li{flex-direction:column;gap:10px}
}
@media (max-width: 640px){
  .home-intro-actions{grid-template-columns:minmax(0,1fr);gap:8px}
  .home-featured-link{justify-self:start}
  .picker-panel{padding:18px 16px}
  .picker-options,.picker-fallback-list,.home-steps{grid-template-columns:minmax(0,1fr)}
  .home-steps li{flex-direction:row;gap:14px}
  .home-method-in{padding:24px 0}
}
@media (max-width: 480px){ .quick{grid-template-columns:1fr} }
@media (max-width: 560px){ .navbar .site-nav{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 16px} .site-nav a{padding:10px 0;font-size:14px;white-space:normal} .site-nav li:first-child a{padding-left:0} }
@media (max-width: 380px){ .navbar .site-nav a{font-size:13px} }
@media (prefers-reduced-motion: reduce){ *{transition:none!important;animation:none!important} }
/* sửa màu liên kết trong khối nền màu */
.navbar a,.lead-h a,.page-hero a.btn,.route-tile,.site-footer a{color:#fff}
.band a.btn-hi,.side-start a.btn-ink{color:inherit}
.btn-hi{color:var(--ink)!important}.btn-ink,.btn-accent{color:#fff!important}
.explain-media,.card-media,.side-media{display:block}
.kicker a{color:inherit}

/* ghi chú nguồn & lưu ý cuối bài (chỉ bài cần) */
.end-note{margin:32px 0 0;padding-top:12px;border-top:1px solid var(--line);font-size:14px;line-height:1.6;color:var(--muted);max-width:72ch}
.end-note p{margin:0}
.end-note a{color:var(--ink)}

/* Thanh lựa chọn cookie (chỉ khi bật consent_banner). Nhỏ, ở đáy, thêm khoảng đệm để không che nội dung cuối trang. */
.consent-bar{position:fixed;left:0;right:0;bottom:0;z-index:60;background:var(--bg);border-top:1px solid var(--line);box-shadow:0 -6px 20px rgba(16,19,26,.08)}
.consent-in{display:flex;align-items:center;justify-content:space-between;gap:16px;padding-top:12px;padding-bottom:12px}
.consent-in p{margin:0;font-size:14px;color:var(--ink);max-width:70ch}
.consent-in a{color:var(--accent-deep)}
.consent-btns{display:flex;gap:10px;flex-shrink:0}
.consent-btns .btn{padding:9px 16px;font-size:14.5px}
.btn-line{background:var(--bg);color:var(--ink);border:1px solid var(--ink)}.btn-line:hover{background:var(--soft)}
body.has-consent-bar{padding-bottom:var(--consent-h,72px)}
.footer-link-btn{background:none;border:0;padding:0;font:inherit;color:inherit;text-align:left;cursor:pointer}.footer-link-btn:hover{text-decoration:underline}
@media (max-width:640px){.consent-in{flex-direction:column;align-items:stretch;gap:10px}.consent-btns .btn{flex:1;justify-content:center}}

/* v0.7.0: AI theo công việc, gom bài theo nhóm */
.job-jump ul{list-style:none;margin:0 0 8px;padding:0;display:flex;flex-wrap:wrap;gap:8px}
.job-jump a.chip-btn{display:inline-flex;align-items:center;gap:8px;text-decoration:none;color:var(--ink)}
.job-jump a.chip-btn:hover{border-color:var(--ink)}
.job-n{font-size:12px;font-weight:700;min-width:22px;height:22px;display:inline-grid;place-items:center;border-radius:var(--pill);background:var(--soft)}
.job-group{scroll-margin-top:16px}
.job-group .sec-title{margin-bottom:8px}
.job-desc{margin:0 0 20px;color:var(--muted);max-width:68ch}

/* ---------- Hỏi Thạo: nút đóng mặc định (v0.6.11). Giao diện khung chat nằm ở thao.css, chỉ tải sau khi bấm ---------- */
.thao-btn{position:fixed;right:max(16px,env(safe-area-inset-right));bottom:max(16px,env(safe-area-inset-bottom));z-index:40;display:inline-flex;align-items:center;gap:8px;min-height:48px;padding:0 18px;border:0;border-radius:999px;background:var(--accent);color:#fff;font:600 16px/1 var(--body);cursor:pointer;box-shadow:0 6px 20px rgba(16,19,26,.22);transition:background var(--motion)}
.thao-btn:hover{background:var(--accent-deep)}
.thao-btn .ic{width:22px;height:22px}
.thao-btn[aria-busy="true"]{opacity:.75;cursor:progress}
.thao-btn:focus-visible{outline:3px solid var(--ink);outline-offset:3px}
.site-footer{padding-bottom:72px}
@media print{.thao{display:none}}