/* Giao diện mẫu. Màu lấy từ config.json (brand.colors) qua biến --primary, --accent, --ink, --muted, --bg, --card, --r.
   Đổi phong cách: sửa biến ở config, hoặc sửa tệp này. Mọi hiệu ứng tắt khi người dùng bật "giảm chuyển động". */
*{box-sizing:border-box}
[hidden]{display:none!important} /* thuộc tính hidden luôn thắng display:flex/grid */
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;font-family:Inter,"Inter Fallback",system-ui,-apple-system,"Segoe UI",sans-serif;font-size:16px;line-height:1.65;color:var(--ink);background:var(--bg);-webkit-font-smoothing:antialiased}
@font-face{font-family:"Inter Fallback";src:local("Arial");size-adjust:107%;ascent-override:90%}
img{max-width:100%;height:auto}
a{color:var(--primary)}
h1,h2,h3{line-height:1.2;letter-spacing:-.01em;text-wrap:balance}
h1{font-size:clamp(30px,4.4vw,48px);margin:.4em 0}
h2{font-size:clamp(22px,2.8vw,32px);margin:1.6em 0 .5em}
h3{font-size:19px}
.wrap{max-width:1180px;margin:0 auto;padding:0 20px}
.skip{position:absolute;left:-999px}.skip:focus{left:12px;top:12px;z-index:99;background:#fff;padding:8px 12px}
:focus-visible{outline:2px solid var(--primary);outline-offset:3px;border-radius:6px}
.lede{font-size:19px;color:var(--muted);max-width:62ch}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:0;border-radius:999px;padding:12px 22px;background:var(--primary);color:#fff;font:600 15px/1 inherit;font-family:inherit;cursor:pointer;text-decoration:none;transition:transform .15s,box-shadow .15s}
.btn:hover{transform:translateY(-1px);box-shadow:0 8px 24px -10px var(--primary)}
.btn.ghost{background:transparent;color:var(--ink);border:1px solid #d5dbe6}
.linkbtn{background:none;border:0;padding:0;color:inherit;font:inherit;text-decoration:underline;cursor:pointer}

/* ---- Thanh menu ---- */
.nav{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.92);border-bottom:1px solid #e6eaf2;transition:background .2s,box-shadow .2s}
.nav.scrolled{background:rgba(255,255,255,.78);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);box-shadow:0 6px 24px -18px rgba(0,0,0,.4)}
.nav-in{display:flex;align-items:center;gap:18px;height:68px}
.logo img{display:block;height:40px;width:auto}
.menu{display:flex;align-items:center;gap:2px;margin-left:auto}
.menu a.top,.dd-btn{display:flex;align-items:center;gap:6px;padding:10px 12px;border-radius:10px;color:var(--ink);font:500 15px/1 inherit;font-family:inherit;text-decoration:none;background:none;border:0;cursor:pointer;white-space:nowrap}
.menu a.top:hover,.dd-btn:hover,.menu a[aria-current="page"],.dd.on>.dd-btn{color:var(--primary);background:color-mix(in srgb,var(--primary) 8%,transparent)}
.dd{position:relative}
.dd-btn svg{width:12px;height:12px;fill:none;stroke:currentColor;stroke-width:1.6;transition:transform .15s}
.dd-panel{position:absolute;left:0;top:calc(100% + 8px);min-width:280px;padding:8px;background:var(--card);border:1px solid #e6eaf2;border-radius:var(--r);box-shadow:0 24px 48px -24px rgba(15,23,42,.35);opacity:0;visibility:hidden;transform:translateY(6px);transition:opacity .15s,transform .15s,visibility .15s}
.dd-panel::before{content:"";position:absolute;left:0;right:0;top:-10px;height:10px} /* cầu nối: rê chuột xuống không mất menu */
.dd-panel a{display:block;padding:10px 12px;border-radius:10px;color:var(--ink);text-decoration:none}
.dd-panel a b{display:block;font-weight:600}
.dd-panel a small{display:block;color:var(--muted);font-size:13px;line-height:1.4;margin-top:2px}
.dd-panel a:hover,.dd-panel a[aria-current="page"]{background:color-mix(in srgb,var(--primary) 8%,transparent)}
@media (hover:hover) and (min-width:1025px){.dd:hover>.dd-panel,.dd:focus-within>.dd-panel{opacity:1;visibility:visible;transform:none}.dd:hover .dd-btn svg{transform:rotate(180deg)}}
.dd.open>.dd-panel{opacity:1;visibility:visible;transform:none}.dd.open .dd-btn svg{transform:rotate(180deg)}
.burger{display:none;width:44px;height:44px;border:1px solid #d5dbe6;border-radius:12px;background:#fff;cursor:pointer;flex-direction:column;align-items:center;justify-content:center;gap:5px}
.burger span{display:block;width:20px;height:2px;background:var(--ink);transition:transform .2s,opacity .2s}
.burger[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.burger[aria-expanded="true"] span:nth-child(2){opacity:0}
.burger[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
@media (max-width:1024px){
  .burger{display:flex;margin-left:auto}
  .join{display:none}
  .menu{display:none;position:absolute;top:68px;left:0;right:0;flex-direction:column;align-items:stretch;gap:0;padding:10px 16px 18px;background:#fff;border-bottom:1px solid #e6eaf2;max-height:calc(100vh - 68px);overflow:auto}
  .menu.open{display:flex}
  .menu a.top,.dd-btn{width:100%;justify-content:space-between;padding:14px 8px;font-size:16px}
  .dd-panel{position:static;min-width:0;box-shadow:none;border:0;border-left:2px solid color-mix(in srgb,var(--primary) 25%,transparent);border-radius:0;padding:0 0 0 10px;margin:0 0 6px 8px;display:none;opacity:1;visibility:visible;transform:none}
  .dd.open>.dd-panel{display:block}
  .dd-panel a small{display:none}
}

/* ---- Khối nội dung ---- */
main{min-height:60vh}
.crumbs{max-width:1180px;margin:14px auto 0;padding:0 20px;font-size:13px;color:var(--muted)}
.crumbs a{color:var(--muted)}
.hero{position:relative;overflow:hidden;padding:72px 0 56px}
.hero::before{content:"";position:absolute;inset:-30% -10% auto auto;width:620px;height:620px;border-radius:50%;background:radial-gradient(circle,color-mix(in srgb,var(--primary) 22%,transparent),transparent 65%);animation:troi 18s ease-in-out infinite alternate;pointer-events:none}
@keyframes troi{to{transform:translate(-80px,60px) scale(1.08)}}
.hero .wrap{position:relative}
.hero .actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px}
section{padding:24px 0}
.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin:18px 0}
@media (max-width:900px){.grid{grid-template-columns:repeat(2,1fr)}}
@media (max-width:600px){.grid{grid-template-columns:1fr}}
.card{display:flex;flex-direction:column;gap:8px;padding:22px;background:var(--card);border:1px solid #e6eaf2;border-radius:var(--r);color:var(--ink);text-decoration:none;transition:transform .2s,box-shadow .2s,border-color .2s}
a.card:hover{transform:translateY(-3px);border-color:color-mix(in srgb,var(--primary) 35%,#e6eaf2);box-shadow:0 18px 36px -24px rgba(15,23,42,.45)}
.card img{border-radius:calc(var(--r) - 6px);margin:-6px -6px 4px;width:calc(100% + 12px);max-width:none}
.card p{margin:0;color:var(--muted)}
.tag{display:inline-block;align-self:flex-start;font-size:12px;font-weight:600;text-transform:uppercase;letter-spacing:.06em;color:var(--accent)}
.meta{font-size:13px;color:var(--muted)}
.chips{display:flex;flex-wrap:wrap;gap:8px}
.chip{border:1px solid #d5dbe6;background:#fff;border-radius:999px;padding:8px 14px;font:500 14px/1 inherit;font-family:inherit;cursor:pointer}
.chip.on{background:var(--ink);color:#fff;border-color:var(--ink)}
.post-body{max-width:780px}
.post-body table{width:100%;border-collapse:collapse;display:block;overflow-x:auto}
.post-body th,.post-body td{border-bottom:1px solid #e6eaf2;padding:10px;text-align:left;vertical-align:top}
.post-body figure{margin:24px 0}.post-body figcaption{font-size:13px;color:var(--muted)}
details.faq{border:1px solid #e6eaf2;border-radius:12px;background:var(--card);margin:10px 0;padding:0 16px}
details.faq summary{cursor:pointer;font-weight:600;padding:14px 0}
.cta-box{margin:36px 0;padding:26px;border-radius:var(--r);background:color-mix(in srgb,var(--primary) 7%,var(--card));border:1px solid color-mix(in srgb,var(--primary) 20%,transparent)}
.cta-box h2{margin-top:0}

/* ---- Chân trang, nút nổi ---- */
.foot{margin-top:60px;padding:40px 0 90px;background:var(--ink);color:#cfd6e4}
.foot a,.foot .linkbtn{color:#fff}
.foot-in{display:grid;grid-template-columns:1.2fr 1fr 1fr;gap:28px}
.foot h3{color:#fff;font-size:15px;text-transform:uppercase;letter-spacing:.06em}
.foot p{margin:.3em 0}
.copy{font-size:13px;opacity:.7;margin-top:24px}
@media (max-width:800px){.foot-in{grid-template-columns:1fr}}
.float-cta{position:fixed;right:16px;bottom:16px;z-index:40;display:flex;flex-direction:column;gap:10px}
.float-cta a{display:grid;place-items:center;width:54px;height:54px;border-radius:50%;color:#fff;font-weight:700;font-size:13px;text-decoration:none;box-shadow:0 10px 24px -10px rgba(0,0,0,.5)}
.fz{background:#0068ff}.fp{background:var(--accent)}

/* ---- Form trượt, cookie ---- */
.drawer{position:fixed;inset:0;z-index:60}
.drawer-bg{position:absolute;inset:0;background:rgba(15,23,42,.45)}
.drawer-box{position:absolute;right:0;top:0;bottom:0;width:min(440px,100%);background:#fff;padding:28px 24px;overflow:auto;animation:vao .25s ease-out}
@keyframes vao{from{transform:translateX(30px);opacity:0}}
.drawer-x{position:absolute;right:14px;top:10px;border:0;background:none;font-size:30px;cursor:pointer}
form label{display:grid;gap:6px;margin:12px 0;font-size:14px;font-weight:500}
form input,form textarea{font:inherit;padding:12px;border:1px solid #d5dbe6;border-radius:10px;width:100%}
form .consent{grid-template-columns:auto 1fr;align-items:start;font-weight:400;font-size:13px;color:var(--muted)}
form .consent input{width:auto;margin-top:3px}
.hp{position:absolute!important;left:-9999px!important}
.form-msg{min-height:1.4em;font-size:14px}
.form-msg.err{color:#c62828}.form-msg.ok{color:#1b7f3b}
.ck-bar{position:fixed;left:16px;right:16px;bottom:16px;z-index:70;max-width:720px;margin:0 auto;display:flex;flex-wrap:wrap;gap:10px;align-items:center;padding:14px 16px;background:#fff;border:1px solid #e6eaf2;border-radius:16px;box-shadow:0 18px 40px -20px rgba(0,0,0,.45);font-size:14px}
.ck-bar p{flex:1 1 300px;margin:0}

/* ---- Phong cách Đội Quân AI: navy + cyan theo logo AB AI ---- */
.logo img{height:42px}
.btn{background:linear-gradient(135deg,var(--primary),#0891B2)}
.btn.ghost{background:transparent}
.hero{background:radial-gradient(1200px 500px at 85% -10%,rgba(34,211,238,.22),transparent 60%),radial-gradient(900px 500px at -10% 110%,rgba(37,99,235,.35),transparent 60%),var(--navy);color:#E2E8F0;padding:84px 0 72px}
.hero::after{content:"";position:absolute;inset:0;background-image:radial-gradient(rgba(148,197,255,.18) 1px,transparent 1px);background-size:26px 26px;-webkit-mask-image:linear-gradient(to bottom,#000,transparent 85%);mask-image:linear-gradient(to bottom,#000,transparent 85%);pointer-events:none}
.hero::before{background:radial-gradient(circle,rgba(34,211,238,.28),transparent 65%)}
.hero h1{color:#fff;max-width:20ch}
.hero h1 em{font-style:normal;background:linear-gradient(90deg,#60A5FA,var(--cyan));-webkit-background-clip:text;background-clip:text;color:transparent}
.hero .lede{color:#CBD5E1}
.hero .tag{color:var(--cyan)}
.hero .btn.ghost{color:#fff;border-color:rgba(255,255,255,.35)}
.hero .btn.ghost:hover{background:rgba(255,255,255,.08)}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:40px;align-items:center}
@media (max-width:900px){.hero-grid{grid-template-columns:1fr}}
.pill{display:inline-flex;align-items:center;gap:8px;padding:6px 12px;border-radius:999px;background:rgba(34,211,238,.12);border:1px solid rgba(34,211,238,.35);color:#A5F3FC;font-size:13px;font-weight:600}
.pill i{width:8px;height:8px;border-radius:50%;background:var(--cyan);box-shadow:0 0 0 0 rgba(34,211,238,.6);animation:nhip 2s infinite}
@keyframes nhip{70%{box-shadow:0 0 0 8px rgba(34,211,238,0)}100%{box-shadow:0 0 0 0 rgba(34,211,238,0)}}
.trust{display:flex;flex-wrap:wrap;gap:8px 18px;margin-top:22px;padding:0;list-style:none;font-size:14px;color:#94A3B8}
.trust li::before{content:"✓ ";color:var(--cyan);font-weight:700}
/* bảng điều khiển đội quân (minh hoạ) */
.squad{background:rgba(15,23,42,.65);border:1px solid rgba(148,163,184,.25);border-radius:22px;padding:18px;backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);box-shadow:0 30px 60px -30px rgba(0,0,0,.7)}
.squad-h{display:flex;justify-content:space-between;align-items:center;font-size:13px;color:#94A3B8;margin-bottom:12px}
.squad-h b{color:#fff;font-size:14px}
.agent{display:flex;gap:12px;align-items:center;padding:12px;border-radius:14px;background:rgba(30,41,59,.7);border:1px solid rgba(148,163,184,.14);margin-top:8px}
.agent .ic{flex:none;width:38px;height:38px;border-radius:11px;display:grid;place-items:center;font-size:18px;background:linear-gradient(135deg,rgba(37,99,235,.35),rgba(34,211,238,.25))}
.agent b{display:block;color:#F1F5F9;font-size:14px}
.agent small{display:block;color:#94A3B8;font-size:12.5px;line-height:1.4}
.agent .st{margin-left:auto;font-size:11.5px;font-weight:600;color:#67E8F9;white-space:nowrap}
.brain{margin-top:10px;padding:10px 12px;border-radius:12px;border:1px dashed rgba(34,211,238,.45);color:#A5F3FC;font-size:13px;text-align:center}
.note{font-size:12px;color:#64748B;margin-top:8px}
.hero .note{color:#94A3B8}
/* khối nội dung */
.sec-lede{color:var(--muted);max-width:66ch;margin-top:-.2em}
.icon{width:44px;height:44px;border-radius:12px;display:grid;place-items:center;font-size:22px;background:color-mix(in srgb,var(--primary) 10%,#fff)}
.pain{border-left:3px solid var(--cyan)}
.steps{counter-reset:b;display:grid;gap:14px;margin:18px 0;padding:0;list-style:none}
.steps li{counter-increment:b;position:relative;padding:18px 18px 18px 64px;background:var(--card);border:1px solid #e6eaf2;border-radius:var(--r)}
.steps li::before{content:counter(b);position:absolute;left:18px;top:18px;width:32px;height:32px;border-radius:50%;display:grid;place-items:center;font-weight:700;color:#fff;background:linear-gradient(135deg,var(--primary),#0891B2)}
.steps li b{display:block}
.steps li span{color:var(--muted)}
.ladder{display:grid;gap:12px;margin:18px 0}
.rung{display:grid;grid-template-columns:64px 1fr auto;gap:16px;align-items:center;padding:18px;background:var(--card);border:1px solid #e6eaf2;border-radius:var(--r)}
.rung .lv{font-size:12px;font-weight:700;text-transform:uppercase;letter-spacing:.06em;color:var(--accent);text-align:center}
.rung .lv strong{display:block;font-size:28px;line-height:1;color:var(--ink)}
.rung h3{margin:0 0 4px}
.rung p{margin:0;color:var(--muted)}
.rung .gia{font-weight:700;white-space:nowrap}
.rung.hot{border-color:color-mix(in srgb,var(--primary) 45%,#e6eaf2);box-shadow:0 18px 40px -28px var(--primary)}
@media (max-width:640px){.rung{grid-template-columns:48px 1fr}.rung .gia{grid-column:2}}
.band{background:var(--navy);color:#CBD5E1;border-radius:calc(var(--r) + 6px);padding:34px;margin:28px 0;position:relative;overflow:hidden}
.band h2{color:#fff;margin-top:0}
.band .btn.ghost{color:#fff;border-color:rgba(255,255,255,.35)}
.band::after{content:"";position:absolute;right:-120px;top:-120px;width:320px;height:320px;border-radius:50%;background:radial-gradient(circle,rgba(34,211,238,.25),transparent 65%)}
.band>*{position:relative;z-index:1}
.band .tag{color:#67E8F9}
.band-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:18px}
.split{display:grid;grid-template-columns:1fr 1fr;gap:28px;align-items:start}
@media (max-width:820px){.split{grid-template-columns:1fr}}
.check{list-style:none;padding:0;margin:12px 0}
.check li{position:relative;padding:6px 0 6px 30px}
.check li::before{content:"✓";position:absolute;left:0;top:6px;width:20px;height:20px;border-radius:50%;display:grid;place-items:center;font-size:12px;font-weight:700;color:#fff;background:var(--accent)}
.check.no li::before{content:"✕";background:#94A3B8}
.timeline{display:grid;gap:0;margin:18px 0;border-left:2px solid color-mix(in srgb,var(--primary) 25%,transparent);padding-left:22px}
.timeline div{position:relative;padding:10px 0 14px}
.timeline div::before{content:"";position:absolute;left:-29px;top:16px;width:12px;height:12px;border-radius:50%;background:var(--cyan);border:2px solid #fff;box-shadow:0 0 0 2px var(--cyan)}
.timeline b{display:block}
.timeline span{color:var(--muted)}
.chat-demo{display:grid;gap:8px;max-width:440px}
.chat-demo p{margin:0;padding:10px 14px;border-radius:16px;font-size:15px;max-width:85%}
.chat-demo .kh{background:#E2E8F0;justify-self:end;border-bottom-right-radius:4px}
.chat-demo .ai{background:color-mix(in srgb,var(--primary) 10%,#fff);border:1px solid color-mix(in srgb,var(--primary) 20%,transparent);border-bottom-left-radius:4px}
.chat-demo .note{max-width:none}
.table-wrap{overflow-x:auto}
.table-wrap table{width:100%;border-collapse:collapse;background:var(--card);border-radius:var(--r);overflow:hidden}
.table-wrap th,.table-wrap td{padding:12px 14px;border-bottom:1px solid #e6eaf2;text-align:left;vertical-align:top}
.table-wrap th{background:color-mix(in srgb,var(--primary) 6%,#fff);font-size:14px}
.foot .logo-foot{height:42px;width:auto}

/* ==== Royal Violet: cả web nền đen, nhấn tím #9312ff ==== */
:root{--line:rgba(255,255,255,.09);--vline:rgba(147,18,255,.28)}
body{background:#000;color:var(--ink)}
a{color:#C99BFF}
.btn{background:linear-gradient(135deg,#a020ff,#7a1cf8);transition:transform .15s,box-shadow .2s,filter .2s}
.btn:hover{filter:brightness(1.12);box-shadow:0 0 0 1px rgba(160,32,255,.5),0 10px 34px -6px rgba(147,18,255,.75)}
.btn.ghost{background:#141218;color:#f7f7f8;border:1px solid var(--line)}
.btn.ghost:hover{background:#1c1922;box-shadow:0 0 24px -6px rgba(147,18,255,.6)}
.nav{background:rgba(0,0,0,.55);border-bottom:1px solid var(--line);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px)}
.nav.scrolled{background:rgba(0,0,0,.75)}
.menu a.top,.dd-btn{color:#d6d4d3}
.menu a[aria-current="page"],.menu a.top:hover,.dd-btn:hover,.dd.on>.dd-btn{color:#fff;background:#1a1720}
.dd-panel{background:#0c0a12;border-color:var(--line)}
.dd-panel a{color:var(--ink)}
.dd-panel a:hover,.dd-panel a[aria-current="page"]{background:#1a1720}
.burger{background:#141218;border-color:var(--line)}
@media (max-width:1024px){.menu{background:#07050c;border-bottom-color:var(--line)}}
.card,.steps li,.rung,details.faq,.table-wrap table{background:var(--card);border-color:var(--vline)}
.card{border:1px solid var(--vline)}
a.card:hover{border-color:rgba(160,32,255,.6);box-shadow:0 18px 44px -24px rgba(147,18,255,.8)}
.table-wrap th,.table-wrap td,.post-body th,.post-body td{border-bottom-color:var(--line)}
.table-wrap th{background:#14101c}
.icon{background:rgba(147,18,255,.14)}
.pain{border-left:3px solid var(--primary)}
.chip{background:#141218;color:var(--ink);border-color:var(--line)}
.chip.on{background:var(--primary);border-color:var(--primary);color:#fff}
.cta-box{background:rgba(147,18,255,.08);border-color:var(--vline)}
.chat-demo .kh{background:#1c1a22}
.chat-demo .ai{background:rgba(147,18,255,.14);border-color:var(--vline)}
.steps li::before{background:linear-gradient(135deg,#a020ff,#7a1cf8)}
.timeline{border-left-color:var(--vline)}
.timeline div::before{background:var(--primary);border-color:#000;box-shadow:0 0 0 2px var(--primary),0 0 14px var(--primary)}
.rung.hot{border-color:rgba(160,32,255,.7);box-shadow:0 0 40px -18px var(--primary)}
.hero{background:radial-gradient(1100px 480px at 50% -18%,rgba(147,18,255,.42),transparent 62%),radial-gradient(700px 400px at 100% 110%,rgba(122,28,248,.18),transparent 60%),#000}
.hero::after{background-image:radial-gradient(rgba(255,255,255,.22) 1px,transparent 1px)}
.hero::before{background:radial-gradient(circle,rgba(224,36,195,.22),transparent 65%)}
.hero h1 em,.grad{font-style:normal;background:linear-gradient(90deg,#d8b4fe,#a020ff 55%,#e024c3);-webkit-background-clip:text;background-clip:text;color:transparent}
.pill{background:rgba(147,18,255,.14);border-color:rgba(160,32,255,.45);color:#E9D5FF}
.pill i{background:#B26BFF}
.trust li::before{color:#B26BFF}
.squad{background:rgba(12,10,18,.8);border-color:var(--vline)}
.agent{background:#14101c;border-color:var(--line)}
.agent .ic{background:linear-gradient(135deg,rgba(160,32,255,.4),rgba(122,28,248,.2))}
.agent .st{color:#C99BFF}
.brain{border-color:rgba(160,32,255,.5);color:#E9D5FF}
.band{background:radial-gradient(600px 300px at 90% -20%,rgba(147,18,255,.45),transparent 60%),#0a0612;border:1px solid var(--vline);color:#bdbac0}
.band::after{background:radial-gradient(circle,rgba(224,36,195,.2),transparent 65%)}
.band .tag{color:#C99BFF}
.foot{background:#050307;border-top:1px solid var(--line);color:#a8a5ab}
.drawer-box{background:#0c0a12;color:var(--ink);border-left:1px solid var(--vline)}
.drawer-x{color:#fff}
form input,form textarea{background:#14101c;color:var(--ink);border-color:var(--line)}
form input:focus,form textarea:focus{border-color:var(--primary);outline:none}
.ck-bar{background:#0c0a12;border-color:var(--vline)}
.form-msg.err{color:#ff7a6b}.form-msg.ok{color:#6fd47f}
.note{color:#7d7a80}
h1,h2,h3{font-family:"Be Vietnam Pro",Inter,system-ui,sans-serif}

/* ==== Nút nổi + khung chat AI (n8n) ==== */
.float-cta a,.float-cta button{display:grid;place-items:center;width:54px;height:54px;border-radius:50%;border:0;color:#fff;font:700 13px/1 Inter,sans-serif;text-decoration:none;cursor:pointer;box-shadow:0 10px 24px -10px rgba(0,0,0,.6)}
.fm{background:#0866ff}
.fc{background:linear-gradient(135deg,#a020ff,#7a1cf8);box-shadow:0 0 0 0 rgba(160,32,255,.6),0 10px 24px -10px rgba(0,0,0,.6)!important;animation:nhip 2.4s infinite}
.chat{position:fixed;right:84px;bottom:16px;z-index:65;width:min(380px,calc(100vw - 32px));height:min(560px,calc(100vh - 100px));display:flex;flex-direction:column;background:#0c0a12;border:1px solid rgba(147,18,255,.45);border-radius:18px;box-shadow:0 30px 70px -20px rgba(147,18,255,.55);overflow:hidden;animation:vao .2s ease-out}
.chat-h{display:flex;align-items:center;gap:10px;padding:12px 14px;border-bottom:1px solid var(--line);background:radial-gradient(200px 80px at 0 0,rgba(160,32,255,.35),transparent),#0f0c15}
.chat-h b{display:block;font-size:14px}.chat-h small{display:block;color:#8b8988;font-size:12px}
.chat-ava{width:34px;height:34px;border-radius:10px;display:grid;place-items:center;background:linear-gradient(135deg,#a020ff,#7a1cf8)}
.chat-x{margin-left:auto;background:none;border:0;color:#fff;font-size:26px;cursor:pointer;width:40px;height:40px}
.chat-log{flex:1;overflow-y:auto;padding:14px;display:flex;flex-direction:column;gap:8px}
.chat-log p{margin:0;padding:9px 13px;border-radius:15px;font-size:14.5px;line-height:1.5;max-width:86%;white-space:pre-line}
.chat-log .kh{align-self:flex-end;background:linear-gradient(135deg,#a020ff,#7a1cf8);color:#fff;border-bottom-right-radius:4px}
.chat-log .ai{align-self:flex-start;background:#1c1822;border-bottom-left-radius:4px}
.chat-log .typing{color:#8b8988;font-style:italic}
.chat-log .err{border:1px solid rgba(240,59,42,.5)}
.chat-f{display:flex;gap:8px;padding:10px;border-top:1px solid var(--line)}
.chat-f input{flex:1;min-width:0;font:inherit;font-size:16px;padding:10px 12px;border-radius:12px;border:1px solid var(--line);background:#14101c;color:var(--ink)}
.chat-f input:focus{outline:none;border-color:var(--primary)}
.chat-f .btn{padding:10px 16px}
.chat-note{margin:0;padding:0 12px 10px;font-size:11.5px;color:#6f6c73}
.chat-note a{color:#9c97a3}
@media (max-width:600px){.chat{right:8px;left:8px;bottom:8px;width:auto;height:calc(100vh - 90px);height:calc(100svh - 90px)}}
.post-hero{display:block;width:100%;height:auto;border-radius:var(--r);margin:10px 0 24px;border:1px solid var(--vline)}
.post-body figure img{display:block;width:100%;height:auto;border-radius:14px;border:1px solid var(--vline);background:#0c0a12}
.post-body blockquote{margin:16px 0;padding:14px 18px;border-left:3px solid var(--primary);background:rgba(147,18,255,.08);border-radius:0 12px 12px 0}
.post-body blockquote p{margin:0}
@media print{.nav,.foot,.float-cta,.chat,.drawer,.ck-bar,.cta-box{display:none!important}body{background:#fff;color:#000}.card,.table-wrap table{background:#fff}}

/* ==== Hero trang chủ: bầu trời sao + vành hành tinh tím + bảng điều khiển (sân khấu 1672×941) ==== */
.zl{position:relative;height:100vh;height:100svh;min-height:620px;margin-top:-68px;overflow:hidden;background:#000;isolation:isolate}
.zl-stars{position:absolute;inset:0;width:100%;height:100%;z-index:0}
.zl-stage{position:absolute;left:50%;top:50%;width:1672px;height:941px;transform:translate(-50%,-50%) scale(var(--s,1));z-index:1}
.zl-rim,.zl-video{position:absolute;left:0;top:0;width:1672px;height:717px;pointer-events:none}
.zl-rim{transition:opacity .8s}
.zl-video{object-fit:cover;mix-blend-mode:screen;opacity:0;transition:opacity .8s}
.zl-video.on{opacity:1}
.zl-video.on~.zl-rim,.zl.has-video .zl-rim{opacity:0}
.zl-copy{position:absolute;left:0;right:0;top:262px;text-align:center}
.zl-h{margin:0 auto;font:700 84px/1.12 "Be Vietnam Pro",Inter,sans-serif;letter-spacing:-.025em;color:#f7f7f8}
.zl-h .ln{display:block;overflow:hidden;padding:0 0 .06em}
.zl-h .ln>span{display:inline-block}
.zl-h .grad{padding-right:.04em}
.zl-lede{max-width:900px;margin:18px auto 0;font:400 19px/1.6 Inter,sans-serif;color:#8b8988}
.zl-actions{display:flex;justify-content:center;gap:14px;margin-top:22px}
.zl-actions .btn{padding:15px 28px;font-size:16px}
.zl-glow{position:absolute;left:234px;top:520px;width:1204px;height:180px;background:url("https://d2ol7oe51mr4n9.cloudfront.net/user_38xzZboKViGWJOttwIXH07lWA1P/e0e14572-12e1-4c08-b471-a21521844945.png") center bottom/100% auto no-repeat;mix-blend-mode:screen;pointer-events:none;opacity:.9}
.zl-panel{position:absolute;left:234px;top:651px;width:1204px;height:640px;border-radius:14px;background:linear-gradient(180deg,rgba(18,14,26,.94),rgba(8,6,12,.97));border:1px solid rgba(147,18,255,.45);box-shadow:0 -20px 80px -30px rgba(147,18,255,.7);display:grid;grid-template-columns:224px 1fr;overflow:hidden;font-family:Inter,sans-serif;text-align:left}
.zl-panel::before{content:"";position:absolute;left:8%;right:8%;top:-1px;height:2px;background:linear-gradient(90deg,transparent,#c084fc 30%,#fff 50%,#c084fc 70%,transparent);box-shadow:0 0 18px 2px rgba(160,32,255,.9)}
.zl-side{border-right:1px solid var(--line);padding:18px 14px;display:flex;flex-direction:column;gap:4px}
.zl-brand{display:flex;align-items:center;justify-content:space-between;font-weight:600;font-size:15px;color:#fff;padding:4px 8px 14px}
.zl-brand b{display:flex;align-items:center;gap:8px}
.zl-bolt{width:22px;height:22px;border-radius:7px;display:grid;place-items:center;background:linear-gradient(135deg,#a020ff,#7a1cf8);font-size:12px}
.zl-it{display:flex;align-items:center;gap:10px;padding:9px 10px;border-radius:10px;font-size:13.5px;color:#a8a5ab}
.zl-it i{width:16px;text-align:center;font-style:normal;opacity:.85}
.zl-it.on{background:#1d1726;color:#fff;box-shadow:inset 0 0 0 1px rgba(147,18,255,.35)}
.zl-sep{height:1px;background:var(--line);margin:8px 6px}
.zl-promo{margin-top:12px;padding:14px;border-radius:12px;background:radial-gradient(120px 80px at 80% 0,rgba(160,32,255,.45),transparent),#14101c;border:1px solid var(--vline);font-size:12.5px;color:#a8a5ab}
.zl-promo b{display:block;color:#fff;font-size:14px;margin-bottom:4px}
.zl-promo span{display:inline-block;margin-top:10px;padding:6px 14px;border-radius:999px;background:linear-gradient(135deg,#a020ff,#7a1cf8);color:#fff;font-weight:600;font-size:12px}
.zl-main{padding:14px 20px;display:grid;grid-template-columns:1fr 300px;grid-template-rows:auto auto 1fr;gap:14px;align-content:start}
.zl-top{grid-column:1/-1;display:flex;align-items:center;gap:10px;font-size:13px;color:#8b8988;padding-bottom:10px;border-bottom:1px solid var(--line)}
.zl-top .ico{width:30px;height:30px;border-radius:9px;display:grid;place-items:center;background:#14101c;border:1px solid var(--line);font-size:13px}
.zl-user{margin-left:auto;display:flex;align-items:center;gap:10px;color:#f7f7f8;font-weight:500}
.zl-user small{display:block;color:#8b8988;font-weight:400;font-size:11.5px}
.zl-ava{width:32px;height:32px;border-radius:50%;background:linear-gradient(135deg,#c084fc,#7a1cf8)}
.zl-stats{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.zl-card{background:#0f0c15;border:1px solid var(--line);border-radius:12px;padding:14px 16px}
.zl-card small{display:block;color:#8b8988;font-size:12.5px}
.zl-card strong{font:600 28px/1.2 Inter,sans-serif;color:#fff;margin-top:6px;display:inline-block}
.up{color:var(--green);font-size:12.5px;font-weight:600;margin-left:8px}
.down{color:var(--red);font-size:12.5px;font-weight:600;margin-left:8px}
.zl-chart{grid-column:1}
.zl-chart svg{display:block;width:100%;height:170px;margin-top:8px}
.zl-cal{grid-column:2;grid-row:2/4}
.zl-cal h4{margin:0;font:600 15px Inter,sans-serif;color:#fff}
.zl-row{display:flex;justify-content:space-between;align-items:center;padding:11px 0;border-bottom:1px solid var(--line);font-size:13px;color:#a8a5ab}
.zl-row b{color:#fff;font-weight:600}
.zl-tagdemo{position:absolute;right:14px;bottom:12px;font-size:11px;color:#6c6970}
/* entrance: một dòng thời gian */
@keyframes zlDown{from{opacity:0;transform:translateY(-14px)}}
@keyframes zlWipe{from{transform:translateY(105%)}}
@keyframes zlUp{from{opacity:0;transform:translateY(18px)}}
@keyframes zlRise{from{opacity:0;transform:translateY(120px)}}
.zl-page .nav{animation:zlDown .6s ease-out both}
.zl-h .ln>span{animation:zlWipe .8s cubic-bezier(.2,.8,.2,1) both}
.zl-h .ln:nth-child(1)>span{animation-delay:.15s}.zl-h .ln:nth-child(2)>span{animation-delay:.3s}
.zl-lede{animation:zlUp .7s .55s ease-out both}
.zl-actions{animation:zlUp .7s .7s ease-out both}
.zl-panel,.zl-glow{animation:zlRise 1s .85s cubic-bezier(.2,.8,.2,1) both}
.zl-side{animation:zlUp .6s 1.25s both}.zl-stats{animation:zlUp .6s 1.35s both}.zl-chart{animation:zlUp .6s 1.45s both}.zl-cal{animation:zlUp .6s 1.55s both}
/* điện thoại / màn dọc: xếp chồng */
@media (max-width:900px),(orientation:portrait){
  .zl{height:auto;min-height:0}
  .zl-stage{position:relative;left:auto;top:auto;width:auto;height:auto;transform:none;padding:120px 16px 40px}
  .zl-rim{left:50%;width:1000px;height:429px;transform:translateX(-50%) translateY(-40px);-webkit-mask-image:radial-gradient(60% 75% at 50% 25%,#000 55%,transparent 100%);mask-image:radial-gradient(60% 75% at 50% 25%,#000 55%,transparent 100%)}
  .zl-video{display:none}
  .zl-copy{position:relative;top:auto;padding-top:60px}
  .zl-h{font-size:clamp(30px,8.6vw,56px);letter-spacing:-.03em}
  .zl-h .ln,.zl-h .ln>span{display:inline}
  .zl-lede{font-size:16px}
  .zl-actions{flex-wrap:wrap}
  .zl-glow{display:none}
  .zl-panel{position:relative;left:auto;top:auto;width:auto;height:auto;margin-top:40px;grid-template-columns:1fr}
  .zl-side{flex-direction:row;overflow-x:auto;border-right:0;border-bottom:1px solid var(--line);padding:12px;gap:6px;scrollbar-width:none}
  .zl-brand,.zl-sep,.zl-promo{display:none}
  .zl-it{flex:none;border:1px solid var(--line);border-radius:999px;padding:7px 12px}
  .zl-main{grid-template-columns:1fr;padding:14px}
  .zl-cal{grid-column:1;grid-row:auto}
  .zl-user small{display:none}
  .zl-stats{grid-template-columns:1fr}
}

@media (prefers-reduced-motion:reduce){*,*::before,*::after{animation:none!important;transition:none!important;scroll-behavior:auto!important}}