/* Gia sư Việt Nam: hệ thống thiết kế dùng chung cho trang giới thiệu, tin tức và ứng dụng */
:root{
  --bg:#f5f7f4;--card:#fff;--ink:#14231e;--mute:#566660;--line:#dbe3de;
  --pri:#1f7a5c;--pri-d:#165c45;--pri-s:#e3f2ec;--pri-t:#0e3b2e;
  --acc:#f2b84b;--acc-s:#fff3d6;--acc-ink:#5a3d00;
  --warn:#b3380a;--ok:#1f7a5c;
  --r:14px;--r-s:10px;--sh:0 1px 2px rgba(20,35,30,.06),0 8px 24px rgba(20,35,30,.07);
  --w:1120px;
}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]){
  --bg:#0e1714;--card:#16221d;--ink:#e8f0ec;--mute:#9db0a8;--line:#27372f;
  --pri:#4cc79a;--pri-d:#7fdcb7;--pri-s:#1b3a2f;--pri-t:#d4f3e6;
  --acc:#f2b84b;--acc-s:#3a2f12;--acc-ink:#fbe3a6;--warn:#ff9a6b;--ok:#4cc79a;
  --sh:0 1px 2px rgba(0,0,0,.4),0 8px 24px rgba(0,0,0,.35)}}
:root[data-theme="dark"]{
  --bg:#0e1714;--card:#16221d;--ink:#e8f0ec;--mute:#9db0a8;--line:#27372f;
  --pri:#4cc79a;--pri-d:#7fdcb7;--pri-s:#1b3a2f;--pri-t:#d4f3e6;
  --acc:#f2b84b;--acc-s:#3a2f12;--acc-ink:#fbe3a6;--warn:#ff9a6b;--ok:#4cc79a;
  --sh:0 1px 2px rgba(0,0,0,.4),0 8px 24px rgba(0,0,0,.35)}
*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{animation:none!important;transition:none!important}}
body{margin:0;font:16px/1.6 system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;background:var(--bg);color:var(--ink);-webkit-font-smoothing:antialiased}
a{color:var(--pri);text-underline-offset:3px}
a:hover{color:var(--pri-d)}
:focus-visible{outline:3px solid var(--acc);outline-offset:2px;border-radius:4px}
img,svg{max-width:100%;height:auto}
.skip{position:absolute;left:-999px;top:8px;background:var(--pri);color:#fff;padding:10px 16px;border-radius:8px;z-index:50}
.skip:focus{left:8px}
.wrap{max-width:var(--w);margin:0 auto;padding:0 16px}

/* Đầu trang và điều hướng */
.top{display:flex;flex-wrap:wrap;gap:6px 20px;align-items:center;padding:10px 16px;background:color-mix(in srgb,var(--card) 92%,transparent);backdrop-filter:saturate(1.4) blur(8px);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20}
.brand{display:flex;align-items:center;gap:10px;font-size:20px;font-weight:700;text-decoration:none;color:var(--ink);letter-spacing:-.01em}
.brand b{color:var(--pri)}
.brand svg{width:34px;height:34px;flex:none}
.top nav{display:flex;flex-wrap:wrap;gap:2px;margin-left:auto;align-items:center}
.top nav a{padding:9px 12px;border-radius:10px;text-decoration:none;color:var(--ink);min-height:44px;display:inline-flex;align-items:center}
.top nav a:hover{background:var(--pri-s)}
.top nav a.on{background:var(--pri-s);color:var(--pri);font-weight:600}
.top nav a.cta{background:var(--pri);color:#fff;font-weight:600;margin-left:6px}
.top nav a.cta:hover{background:var(--pri-d);color:#fff}
.menu-btn{display:none}
@media (max-width:760px){.top nav{margin-left:0;width:100%}.top nav a{padding:8px 10px}}

main{max-width:var(--w);margin:0 auto;padding:20px 16px 32px}
body.site main{max-width:none;padding:0}
footer{background:var(--pri-t);color:#d4e6de;padding:36px 16px 28px;margin-top:40px;font-size:15px}
footer a{color:#fff}
footer .cols{max-width:var(--w);margin:0 auto;display:grid;grid-template-columns:2fr 1fr 1fr;gap:24px}
footer h2{font-size:15px;margin:0 0 8px;color:#fff;text-transform:none}
footer ul{list-style:none;margin:0;padding:0}footer li{margin:4px 0}
footer .small{max-width:var(--w);margin:20px auto 0;padding-top:16px;border-top:1px solid #ffffff2e;font-size:13px;color:#a9c4b8}
@media (max-width:760px){footer .cols{grid-template-columns:1fr}}
#app-footer{text-align:center;color:var(--mute);font-size:13px;padding:24px 16px}

/* Chữ */
h1{font-size:clamp(28px,4.2vw,44px);line-height:1.15;margin:0 0 12px;letter-spacing:-.02em}
h2{font-size:clamp(22px,3vw,30px);line-height:1.25;margin:28px 0 10px;letter-spacing:-.01em}
h3{margin:0 0 4px;font-size:18px;line-height:1.3}
.app h1{font-size:26px}.app h2{font-size:20px}
.sub{color:var(--mute);margin:0 0 16px}
.lead{font-size:clamp(17px,2vw,20px);color:var(--mute);max-width:56ch}
.eyebrow{display:inline-block;font-size:13px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:var(--pri);background:var(--pri-s);padding:4px 12px;border-radius:999px;margin-bottom:14px}

/* Nút */
button,.btn{font:inherit;font-weight:600;cursor:pointer;border:2px solid var(--pri);background:var(--pri);color:#fff;border-radius:12px;padding:9px 18px;min-height:44px;text-decoration:none;display:inline-flex;align-items:center;justify-content:center;gap:8px;transition:background .15s,transform .15s}
button:hover,.btn:hover{background:var(--pri-d);border-color:var(--pri-d);color:#fff}
button:active,.btn:active{transform:translateY(1px)}
button:disabled{opacity:.55;cursor:not-allowed}
button.alt,.btn.alt-l,.btn.ghost{background:transparent;color:var(--pri)}
button.alt:hover,.btn.alt-l:hover,.btn.ghost:hover{background:var(--pri-s);color:var(--pri-d)}
.btn.lg{padding:13px 26px;font-size:17px;min-height:52px}
.btn.acc{background:var(--acc);border-color:var(--acc);color:#2a1d00}
.btn.acc:hover{background:#ffcb63;border-color:#ffcb63;color:#2a1d00}
button.sm{padding:3px 12px;font-size:14px;min-height:36px}
button.del{border-color:var(--warn);color:var(--warn);background:transparent}
button.del:hover{background:var(--warn);color:#fff}

/* Trang giới thiệu */
.hero-site{background:linear-gradient(160deg,var(--pri-s),var(--bg) 70%);border-bottom:1px solid var(--line);overflow:hidden}
.hero-grid{max-width:var(--w);margin:0 auto;padding:48px 16px 40px;display:grid;grid-template-columns:1.05fr .95fr;gap:32px;align-items:center}
.hero-grid .art{width:100%;height:auto;filter:drop-shadow(0 18px 30px rgba(14,59,46,.18))}
.hero-cta{display:flex;flex-wrap:wrap;gap:12px;margin:22px 0 18px}
.chips{display:flex;flex-wrap:wrap;gap:8px 10px;list-style:none;margin:0;padding:0}
.chips li{display:inline-flex;align-items:center;gap:8px;background:var(--card);border:1px solid var(--line);border-radius:999px;padding:6px 14px;font-size:14px}
.chips li::before{content:"";width:8px;height:8px;border-radius:50%;background:var(--pri)}
@media (max-width:860px){.hero-grid{grid-template-columns:1fr;padding-top:28px}.hero-grid .art{max-width:520px;margin:0 auto}}

.strip{background:var(--pri-t);color:#e7f4ee}
.strip .in{max-width:var(--w);margin:0 auto;padding:16px;display:flex;flex-wrap:wrap;gap:12px 24px;align-items:center;justify-content:space-between}
.strip p{margin:0;font-size:17px;max-width:60ch}
.strip strong{color:#fff}

section.sec{padding:44px 0}
section.sec.alt{background:var(--card);border-block:1px solid var(--line)}
.sec-h{max-width:62ch;margin-bottom:24px}
.sec-h h2{margin-top:0}
.sec-h p{color:var(--mute);margin:0}
.feat{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:16px;list-style:none;margin:0;padding:0}
.feat li{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:20px;box-shadow:var(--sh)}
section.alt .feat li{background:var(--bg);box-shadow:none}
.feat .ic{width:44px;height:44px;border-radius:12px;background:var(--pri-s);color:var(--pri);display:grid;place-items:center;margin-bottom:12px}
.feat .ic svg{width:24px;height:24px}
.feat h3{margin-bottom:6px}.feat p{margin:0;color:var(--mute);font-size:15px}
.steps{counter-reset:s;display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:16px;list-style:none;margin:0;padding:0}
.steps li{counter-increment:s;position:relative;background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:56px 18px 18px}
.steps li::before{content:counter(s);position:absolute;left:18px;top:14px;width:32px;height:32px;border-radius:50%;background:var(--acc);color:#2a1d00;font-weight:800;display:grid;place-items:center}
.steps p{margin:4px 0 0;color:var(--mute);font-size:15px}
.two{display:grid;grid-template-columns:1fr 1fr;gap:32px;align-items:center}
@media (max-width:860px){.two{grid-template-columns:1fr}}
.poster-box{display:grid;grid-template-columns:minmax(220px,340px) 1fr;gap:32px;align-items:center}
.poster-box img{width:100%;border-radius:10px;border:1px solid var(--line);box-shadow:var(--sh)}
@media (max-width:760px){.poster-box{grid-template-columns:1fr}.poster-box img{max-width:320px;margin:0 auto}}
.tick{list-style:none;margin:12px 0;padding:0}
.tick li{padding-left:30px;position:relative;margin:8px 0}
.tick li::before{content:"";position:absolute;left:0;top:5px;width:18px;height:18px;border-radius:50%;background:var(--pri) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='3.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M5 12.5l4.5 4.5L19 7.5'/%3E%3C/svg%3E") center/12px no-repeat}
.news{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:18px}
.ncard{background:var(--card);border:1px solid var(--line);border-radius:var(--r);overflow:hidden;box-shadow:var(--sh);display:flex;flex-direction:column;transition:transform .15s}
.ncard:hover{transform:translateY(-2px)}
.ncard .thumb{aspect-ratio:16/8;background:var(--pri-s);display:block;width:100%}
.ncard .body{padding:16px 18px 18px;display:flex;flex-direction:column;gap:6px;flex:1}
.ncard h3 a{color:var(--ink);text-decoration:none}
.ncard h3 a:hover{color:var(--pri)}
.ncard p{margin:0;color:var(--mute);font-size:15px}
.ncard .meta{font-size:13px;color:var(--mute)}
.ncard .more{margin-top:auto;font-weight:600;font-size:15px}
details.faq{background:var(--card);border:1px solid var(--line);border-radius:12px;margin:10px 0;padding:0}
details.faq summary{cursor:pointer;padding:14px 18px;font-weight:600;list-style:none;display:flex;justify-content:space-between;gap:12px;min-height:48px;align-items:center}
details.faq summary::-webkit-details-marker{display:none}
details.faq summary::after{content:"+";font-size:22px;color:var(--pri);line-height:1}
details.faq[open] summary::after{content:"\2212"}
details.faq .ans{padding:0 18px 16px;color:var(--mute)}
.cta-band{background:linear-gradient(135deg,var(--pri),var(--pri-d));color:#fff;border-radius:20px;padding:36px 28px;display:flex;flex-wrap:wrap;gap:18px 32px;align-items:center;justify-content:space-between;margin:12px 0}
.cta-band h2{margin:0;color:#fff}.cta-band p{margin:6px 0 0;color:#e1f1ea;max-width:52ch}

/* Bài viết */
.crumb{font-size:14px;color:var(--mute);margin:18px 0 8px}
.crumb a{color:var(--mute)}
article.post{max-width:740px;margin:0 auto;padding:12px 16px 24px}
article.post h1{font-size:clamp(28px,4vw,38px)}
article.post .meta{color:var(--mute);font-size:14px;margin-bottom:20px}
article.post h2{font-size:24px;margin-top:32px}
article.post p,article.post li{font-size:18px;line-height:1.75}
article.post li{margin:6px 0}
article.post .hero-img{width:100%;border-radius:var(--r);border:1px solid var(--line);margin:8px 0 20px}
.note{background:var(--acc-s);color:var(--acc-ink);border-left:4px solid var(--acc);border-radius:8px;padding:14px 18px;margin:20px 0}
.note p{margin:0;font-size:17px}
.related{border-top:1px solid var(--line);margin-top:36px;padding-top: 8px}

/* Ứng dụng */
.app .hero{background:var(--pri-s);border-radius:var(--r);padding:28px 22px;margin-bottom:20px}
.hero p{max-width:620px}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:14px}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:16px}
.tag{display:inline-block;background:var(--pri-s);color:var(--pri);border-radius:999px;padding:1px 10px;font-size:13px;margin:2px 4px 2px 0}
.tag.gr{background:var(--line);color:var(--mute)}
.mute{color:var(--mute);font-size:14px}
.price{font-weight:700;color:var(--pri)}
.row{display:flex;flex-wrap:wrap;gap:10px;align-items:center}
.row.sb{justify-content:space-between}
input,select,textarea{font:inherit;width:100%;padding:9px 12px;min-height:44px;border:1px solid var(--line);border-radius:10px;background:var(--card);color:var(--ink)}
input:focus,select:focus,textarea:focus{border-color:var(--pri)}
label{display:block;font-size:14px;color:var(--mute);margin:10px 0 3px}
.form{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:0 16px}
.full{grid-column:1/-1}
.filters{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:8px;margin-bottom:16px}
.filters label{margin:0 0 2px}
.chk{display:flex;flex-wrap:wrap;gap:6px}
.chk label{display:inline-flex;align-items:center;gap:6px;margin:0;color:var(--ink);border:1px solid var(--line);border-radius:999px;padding:5px 14px;cursor:pointer;min-height:36px}
.chk input{width:auto;min-height:0}
.chk label:has(input:checked){background:var(--pri-s);border-color:var(--pri)}
table.tt{border-collapse:collapse;width:100%;min-width:560px}
table.tt th,table.tt td{border:1px solid var(--line);padding:6px;text-align:center;font-size:14px;height:36px}
table.tt th{background:var(--pri-s);color:var(--pri)}
table.tt td.on{background:var(--pri-s);cursor:pointer}
table.tt td.ovl{background:var(--pri);color:#fff}
table.tt td.bk{background:#fde68a;color:#422006;font-weight:600}
.scroll{overflow-x:auto}
.score{font-size:22px;font-weight:700;color:var(--pri)}
dialog{border:1px solid var(--line);border-radius:16px;max-width:560px;width:calc(100% - 32px);background:var(--card);color:var(--ink)}
dialog::backdrop{background:#0008}
.empty{padding:24px;text-align:center;color:var(--mute);border:1px dashed var(--line);border-radius:12px}
.narrow{max-width:420px}
.errt{color:var(--warn)}.okt{color:var(--ok)}
.who{padding:6px 8px;color:var(--mute)}
table.tbl{border-collapse:collapse;width:100%;min-width:560px;background:var(--card)}
table.tbl th,table.tbl td{border:1px solid var(--line);padding:8px 10px;text-align:left;font-size:14px;vertical-align:top}
table.tbl th{background:var(--pri-s);color:var(--pri)}
.stat .big{font-size:22px;font-weight:700}
label.line{display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin:6px 0;color:var(--ink);font-size:15px}
label.line input{width:auto;min-height:0}
img.qr{display:block;max-width:240px;width:100%;margin:8px 0}
.thread{display:flex;flex-direction:column;gap:8px;max-height:55vh;overflow-y:auto;padding:8px 0;margin-bottom:10px}
.bub{align-self:flex-start;max-width:80%;background:var(--card);border:1px solid var(--line);border-radius:14px;padding:8px 12px}
.bub.me{align-self:flex-end;background:var(--pri-s)}
.bub span{display:block;font-size:12px}
code{background:var(--line);padding:1px 6px;border-radius:6px}
.banner{background:var(--acc);color:#2a1d00;padding:10px 16px;text-align:center;font-size:14px}
label.inl{display:inline-flex;align-items:center;gap:6px;margin:0}
canvas#bd{display:block;width:100%;height:auto;background:#fff;border:1px solid var(--line);border-radius:12px;touch-action:none;cursor:crosshair;margin-top:10px}
/* Thông tin lớp học Zoom / Meet */
.room{margin:10px 0 4px;border:1px solid var(--line);border-left:4px solid var(--pri);border-radius:10px;padding:10px 12px;background:var(--pri-s)}
.room.none{border-left-color:var(--acc);background:var(--acc-s)}
.room .rt{display:flex;flex-wrap:wrap;gap:8px 12px;align-items:center;margin-bottom:4px}
.room .plat{font-weight:700}
.room .host{font-size:13px;color:var(--mute);word-break:break-all}
.room .rb{display:flex;flex-wrap:wrap;gap:8px;margin-top:8px}
.room p{margin:2px 0 0;font-size:13px;color:var(--mute)}
.btn.sm{min-height:36px;padding:4px 14px;font-size:14px}
/* Luồng học thử, điểm danh, xếp hạng, bảng điều khiển */
.badge{display:inline-block;border-radius:999px;padding:2px 12px;font-size:13px;font-weight:600;white-space:nowrap}
.badge.wait{background:var(--acc-s);color:var(--acc-ink)}
.badge.try{background:#dbeafe;color:#1e3a8a}
.badge.ok{background:var(--pri-s);color:var(--pri)}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]) .badge.try{background:#1e3a5f;color:#bfdbfe}}
.stepper{list-style:none;margin:10px 0 18px;padding:0;display:grid;grid-template-columns:repeat(auto-fit,minmax(170px,1fr));gap:10px}
.stepper li a,.stepper li>span:not(.n){text-decoration:none}
.stepper li{background:var(--card);border:1px solid var(--line);border-radius:12px}
.stepper li a{display:flex;gap:10px;align-items:center;padding:10px 12px;color:var(--ink);text-decoration:none;min-height:48px}
.stepper .n{flex:none;width:28px;height:28px;border-radius:50%;display:grid;place-items:center;background:var(--line);color:var(--mute);font-weight:700;font-size:14px}
.stepper li.done{border-color:var(--pri);background:var(--pri-s)}
.stepper li.done .n{background:var(--pri);color:#fff}
.stepper.sm{grid-template-columns:repeat(3,1fr);gap:6px;margin:8px 0}
.stepper.sm li{display:flex;gap:6px;align-items:center;padding:5px 8px;font-size:13px;border-radius:10px}
.stepper.sm .n{width:20px;height:20px;font-size:11px}
.stats{grid-template-columns:repeat(auto-fill,minmax(180px,1fr));margin:8px 0}
.stats .card .big{font-size:28px}
ul.todo{list-style:none;margin:8px 0;padding:0;display:grid;gap:8px}
ul.todo li a{display:block;background:var(--card);border:1px solid var(--line);border-radius:12px;padding:12px 14px;color:var(--ink);text-decoration:none}
ul.todo li a:hover{border-color:var(--pri)}
.two-roles{margin-bottom:12px}
table.rank td,table.rank th{vertical-align:middle}
.medal{display:inline-grid;place-items:center;width:30px;height:30px;border-radius:50%;background:var(--line);color:var(--ink)}
.medal.m1{background:#f2b84b;color:#2a1d00}.medal.m2{background:#cbd5e1;color:#1e293b}.medal.m3{background:#e0a77a;color:#3b1d00}
ul.att{list-style:none;margin:6px 0;padding:0;display:grid;gap:6px}
ul.att li{border-left:3px solid var(--line);padding-left:10px;font-size:14px}
.decide{border:2px solid var(--pri);background:var(--pri-s);border-radius:12px;padding:12px;margin:10px 0}
.card h4{margin:12px 0 4px;font-size:15px}
.banner.demo{background:#fde68a;color:#422006;border-bottom:1px solid #eab308}
.demo-login{margin-top:14px}
/* Thương hiệu Online, chọn cấp học, luồng học thử, thành tích */
.brand .on{font-style:normal;font-size:11px;font-weight:800;letter-spacing:.06em;text-transform:uppercase;background:var(--acc);color:#2a1d00;padding:2px 8px;border-radius:999px;margin-left:8px;vertical-align:middle}
.picker{margin-top:-28px;position:relative;z-index:2}
.picker-card{background:var(--card);border:1px solid var(--line);border-radius:20px;box-shadow:var(--sh);padding:24px}
.picker-h h2{margin:0 0 4px;font-size:24px}.picker-h p{margin:0 0 14px;color:var(--mute)}
.levels{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:10px;margin-bottom:16px}
.lv{display:flex;flex-direction:column;align-items:flex-start;gap:2px;text-align:left;background:var(--bg);color:var(--ink);border:2px solid var(--line);border-radius:14px;padding:10px 14px;font-weight:400}
.lv b{font-size:17px}.lv small{color:var(--mute);font-size:13px;line-height:1.3}
.lv:hover{background:var(--pri-s);border-color:var(--pri);color:var(--ink)}
.lv[aria-pressed="true"]{background:var(--pri);border-color:var(--pri);color:#fff}
.lv[aria-pressed="true"] small{color:#d8efe6}
.subj{list-style:none;margin:0 0 16px;padding:0;display:flex;flex-wrap:wrap;gap:8px}
.subj a{display:inline-flex;align-items:center;min-height:44px;padding:8px 18px;border-radius:999px;background:var(--pri-s);color:var(--pri-t);font-weight:600;text-decoration:none;border:1px solid transparent}
.subj a:hover{border-color:var(--pri);color:var(--pri)}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]) .subj a{color:var(--pri-t)}}
.picker-go{display:flex;flex-wrap:wrap;gap:12px;align-items:center}
.flow2{display:grid;grid-template-columns:1fr 1fr;gap:20px}
@media (max-width:900px){.flow2{grid-template-columns:1fr}}
.flowcard{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:20px;box-shadow:var(--sh)}
.flowcard .steps{grid-template-columns:1fr 1fr;margin:14px 0}
@media (max-width:520px){.flowcard .steps{grid-template-columns:1fr}}
.eyebrow.acc{background:var(--acc-s);color:var(--acc-ink)}
.tiles{display:grid;grid-template-columns:repeat(auto-fit,minmax(170px,1fr));gap:14px}
.tile{background:var(--pri-s);border:1px solid var(--line);border-radius:var(--r);padding:18px}
.tile .tv{font-size:32px;font-weight:800;color:var(--pri);line-height:1.1}
.tile .tl{color:var(--mute);font-size:14px;margin-top:4px}
.qh{margin:28px 0 12px}
.quotes{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:16px}
.quote{margin:0;background:var(--card);border:1px solid var(--line);border-left:4px solid var(--acc);border-radius:var(--r);padding:18px;box-shadow:var(--sh)}
.quote blockquote{margin:0 0 10px;font-size:17px;line-height:1.6}.quote blockquote p{margin:0}
.quote figcaption{font-size:14px}.quote .stars{color:#c98a00;letter-spacing:2px}
@media (max-width:520px){.stats{grid-template-columns:repeat(2,1fr)}.stats .card{padding:12px}.stats .card .big{font-size:24px}.picker-card{padding:18px}}

/* Bảng giờ rảnh: ô Sáng / Chiều / Tối, điền khung từ giờ đến giờ */
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
table.tt.ed{min-width:760px;table-layout:fixed}table.tt.ed th:first-child{width:74px}
table.tt.ed td{height:auto;padding:6px;vertical-align:top;text-align:left}
.ed .cl{display:grid;gap:6px;justify-items:center}
.rr{display:inline-flex;align-items:center;gap:2px;padding:3px 2px 3px 6px;border:1px solid var(--line);border-radius:999px;background:var(--pri-s)}
.rr input{width:40px;min-height:34px;padding:0 2px;text-align:center;font-size:16px;border:1px solid var(--line);border-radius:8px;background:#fff}
.rr .rs{color:var(--pri);font-weight:600}
.rr .x{min-width:32px;min-height:32px;padding:0;border-radius:50%;background:transparent;color:#a33a1d;border:0;font-size:18px;line-height:1;cursor:pointer}
.cadd{display:block;width:100%;min-height:34px;margin-top:4px;padding:0;background:transparent;color:var(--pri);border:1px dashed var(--line);border-radius:8px;font-size:18px;cursor:pointer}
.cadd:hover{background:var(--pri-s)}
.rhint{margin:0 0 8px}
td .bh{font-size:12px;opacity:.8}
table.tt td.on,table.tt td.ovl{font-size:13px}
[hidden]{display:none!important}

table.tt{table-layout:fixed}table.tt th:first-child{width:74px}table.tt td{overflow-wrap:anywhere}

/* Hotline, menu Kho đề, thông tin công ty */
.hotline{display:inline-flex;align-items:center;gap:8px;color:#d00000;font-weight:800;font-size:22px;letter-spacing:.01em;text-decoration:none;white-space:nowrap;padding:4px 6px}
.hotline svg{width:26px;height:26px;flex:none}
.hotline:hover{color:#a30000}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]) .hotline{color:#ff6b6b}}
.top nav .dd{position:relative}
.top nav .dd summary{list-style:none;cursor:pointer;padding:9px 12px;border-radius:10px;min-height:44px;display:inline-flex;align-items:center;gap:6px;color:var(--ink)}
.top nav .dd summary::-webkit-details-marker{display:none}
.top nav .dd summary::after{content:"";width:6px;height:6px;border:solid currentColor;border-width:0 2px 2px 0;transform:rotate(45deg) translateY(-2px)}
.top nav .dd summary:hover,.top nav .dd[open] summary{background:var(--pri-s)}
.top nav .dd .menu{position:absolute;top:100%;left:0;min-width:240px;background:var(--card);border:1px solid var(--line);border-radius:12px;box-shadow:var(--sh);padding:6px;display:flex;flex-direction:column;z-index:30}
.top nav .dd .menu a{min-height:40px;white-space:nowrap}
.kho{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:16px;margin-top:22px}
.kho .card h2{font-size:18px;margin:0 0 6px}
footer .cols{grid-template-columns:1.6fr 1fr 1fr 1.5fr}
footer p{margin:0 0 8px}
@media (max-width:760px){footer .cols{grid-template-columns:1fr}.hotline{font-size:19px}.top nav .dd .menu{position:static;box-shadow:none}}
@media (min-width:761px){.top{gap:6px 12px}.top nav a,.top nav .dd summary{padding:9px 9px}.hotline{font-size:20px;margin-left:4px}}
@media (min-width:1180px){.top{flex-wrap:nowrap}.top nav{flex:1;justify-content:flex-end;flex-wrap:nowrap;margin-left:0}.top nav a,.top nav .dd summary{white-space:nowrap}.hotline{flex:none}}
.top .brand{white-space:nowrap;flex:none}

/* Đợt 2: tiêu đề hero, hình thức học, chân trang */
.h1s{font-size:clamp(20px,2.1vw,26px);line-height:1.35;font-weight:700}
.chips li{white-space:normal}
.sec-h.center{text-align:center;max-width:none}
.forms h2{font-size:clamp(26px,3.4vw,38px);text-transform:uppercase;letter-spacing:.01em}
.forms h2 span{color:#2f6bff}
.fcards{display:grid;grid-template-columns:repeat(auto-fit,minmax(290px,1fr));gap:20px;align-items:start}
.fcard{background:var(--card);border:1px solid var(--line);border-radius:20px;padding:16px 18px 18px;box-shadow:var(--sh)}
.fcard:nth-child(2){border:2px solid #2f6bff;background:color-mix(in srgb,#2f6bff 5%,var(--card))}
.fhead{height:120px;border-radius:14px;display:grid;place-items:center;margin-bottom:12px;color:#fff}
.fhead svg{width:56px;height:56px}
.fhead.f1{background:linear-gradient(135deg,#1f7a5c,#4cc79a)}.fhead.f2{background:linear-gradient(135deg,#2f6bff,#6c9bff)}.fhead.f3{background:linear-gradient(135deg,#d98a1c,#f2b84b)}
.fcard h3{text-align:center;color:var(--pri);font-size:19px;margin:6px 0 8px}
.fcard:nth-child(2) h3{color:#2f6bff}
.fcard>p{font-size:15px;color:var(--mute);margin:0 0 10px}
.ticks{list-style:none;margin:0 0 12px;padding:0}
.ticks li{position:relative;padding-left:30px;margin:8px 0;font-size:15px}
.ticks li::before{content:"";position:absolute;left:0;top:2px;width:20px;height:20px;border-radius:50%;background:#2fb36a url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='3.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M5 12.500l4.500 4.500L19 7.500'/%3E%3C/svg%3E") center/14px no-repeat}
.fsubj{background:var(--bg);border:1px solid var(--line);border-radius:14px;padding:12px}
.fsubj h4{margin:0 0 8px;font-size:14px;letter-spacing:.03em}
.chipb{margin:6px 0 0;padding:9px 12px;border-radius:8px;background:#2f6bff;color:#fff;font-weight:600;font-size:14px;line-height:1.35}
.chipb.price{background:#2fa35f}
footer .cols{grid-template-columns:1.7fr 1fr 1.1fr 1.2fr}
.flogo{width:78px;height:78px;background:#fff;border-radius:10px;padding:8px;margin-bottom:14px}
.flogo svg{width:100%;height:100%}
footer .fcomp h2{font-size:17px;letter-spacing:.01em;margin-bottom:12px}
footer .fi{display:flex;gap:10px;align-items:flex-start;margin:0 0 10px}
footer .fi svg{width:18px;height:18px;flex:none;margin-top:3px;color:#a9c4b8}
footer h2{padding-bottom:8px;border-bottom:2px solid #ffffff2e;display:inline-block;margin-bottom:12px}
@media (max-width:980px){footer .cols{grid-template-columns:1fr 1fr}}
@media (max-width:620px){footer .cols{grid-template-columns:1fr}}
.fhead{height:auto;aspect-ratio:16/10;padding:0;overflow:hidden;background:#fff;border:1px solid var(--line)}
.fhead img{width:100%;height:100%;object-fit:cover;display:block}
.fhead.f1 img{object-fit:contain;background:#fff}
.pills{list-style:none;margin:0 0 6px;padding:0;display:flex;flex-wrap:wrap;gap:6px}
.pills li{background:#2f6bff;color:#fff;font-weight:600;font-size:13.5px;padding:6px 11px;border-radius:999px;line-height:1.3}
.fhead.f1{aspect-ratio:7/5}

.fcards{align-items:stretch}
.fcard{display:flex;flex-direction:column}
.fsubj{margin-top:auto}
.fcta{margin-top:16px;justify-content:center;width:100%;background:#2f6bff;border-color:#2f6bff}
.fcta:hover{background:#1f55d6;border-color:#1f55d6;color:#fff}
.fcard:first-child .fcta{background:var(--pri);border-color:var(--pri)}
.fcard:first-child .fcta:hover{background:var(--pri-d);border-color:var(--pri-d)}
.fsubj .pills{margin-top:8px}