/*!
 * web/static/landing.css  (nguồn: assets/landing.css)
 * GIAO DIỆN TRANG CHỦ (LANDING) - stylesheet dùng chung cho MỌI ngôn ngữ.
 *
 * VÌ SAO LÀ FILE RỜI MÀ KHÔNG NHÚNG VÀO MỘT THẺ <style>
 *   Trước đây bản xem trước ở test/landing-*.html mang theo ~200 dòng CSS inline.
 *   Nhân bản khối đó cho 12 ngôn ngữ làm mỗi trang chủ phình thêm ~10 KB HTML
 *   KHÔNG cache được, và biến việc sửa một màu thành 12 lần sửa. Tách ra một file
 *   tĩnh đặt tại /assets/landing.css để:
 *     (a) trình duyệt cache một lần cho cả 12 ngôn ngữ;
 *     (b) sửa thiết kế chỉ sửa MỘT chỗ;
 *     (c) HTML trang chủ còn lại đúng phần ngữ nghĩa + nội dung dịch.
 *   Generator (generate-landing-pages.js) chỉ tham chiếu
 *   <link rel="stylesheet" href="/assets/landing.css">, không chèn CSS nữa.
 *
 * QUAN HỆ VỚI SEO STYLESHEET: KHÔNG liên quan. Landing cố ý có ngôn ngữ thiết kế
 * riêng (token, thang chữ, bề mặt, component) để đọc như một trang sản phẩm, còn
 * các cụm trang SEO giữ stylesheet của chúng. Đừng "hợp nhất" hai bên.
 *
 * QUY ƯỚC SỬA FILE NÀY
 *   - Class đặt theo BEM rút gọn (block__element--modifier), tiền tố theo khối:
 *     site-head__*, langdrop__*, hero__*, console__*, sig__*, sec__*, market-card,
 *     feature, step, credit-cell, plan, install, cta-final, disclaimer, stats/stat.
 *   - Màu luôn lấy từ biến trong :root, KHÔNG viết mã màu trực tiếp trong selector
 *     (ngoại lệ duy nhất là màu alpha nằm trong box-shadow/glow, vì cần độ mờ).
 *   - Mọi khối lớn đều có nhánh @media thu hẹp về 1 cột để trang đọc được trên
 *     điện thoại - landing là điểm vào chính của lưu lượng tìm kiếm di động.
 */
:root{
  --brand:#6366f1;--brand2:#0ea5e9;--brand3:#22d3ee;
  --bg:#070b14;--panel:rgba(255,255,255,.04);--line:rgba(255,255,255,.09);--line2:rgba(255,255,255,.16);
  --txt:#eef2ff;--txt2:#b6c2e2;--muted:#8b9ac0;
  --up:#34d399;--buy:#34d399;--buybg:rgba(52,211,153,.10);--down:#fb7185;--sell:#fb7185;--sellbg:rgba(251,113,133,.10);
  --gold:#fbbf24;
  --radius:18px;--radius-lg:26px;--radius-sm:12px;--maxw:1180px;--gutter:clamp(18px,4vw,40px);
  --grad:linear-gradient(120deg,#6366f1 0%,#0ea5e9 58%,#22d3ee 100%);
  --glow:0 18px 50px -16px rgba(99,102,241,.65);
  --shadow:0 22px 60px -22px rgba(2,6,23,.85);--shadow-sm:0 2px 10px rgba(2,6,23,.5);
  --font:"Inter",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  --font-d:"Plus Jakarta Sans","Inter",-apple-system,"Segoe UI",Roboto,sans-serif;
  --font-m:"JetBrains Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;font-family:var(--font);background:var(--bg);color:var(--txt);line-height:1.62;letter-spacing:-.011em;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;overflow-x:hidden}
img,svg{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4{font-family:var(--font-d);margin:0;line-height:1.12;letter-spacing:-.028em;font-weight:800}
p{margin:0}
ul,ol{margin:0;padding:0}
kbd{font-family:var(--font-m);font-size:.85em;background:var(--panel);border:1px solid var(--line2);border-bottom-width:2px;border-radius:7px;padding:1px 7px;color:#fff}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
::selection{background:rgba(99,102,241,.42);color:#fff}
:focus-visible{outline:2px solid var(--brand3);outline-offset:3px;border-radius:8px}
.wrap{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 var(--gutter);position:relative}
.eyebrow{display:inline-flex;align-items:center;gap:9px;font-size:12.5px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:#c7d2fe}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--grad);border-radius:2px;display:inline-block}
.mono{font-family:var(--font-m);font-variant-numeric:tabular-nums}
.hl{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.muted{color:var(--muted)}
.bg-fx{position:fixed;inset:0;z-index:-1;pointer-events:none;overflow:hidden;background:
  radial-gradient(1100px 620px at 78% -12%,rgba(99,102,241,.30),transparent 62%),
  radial-gradient(900px 560px at 6% 4%,rgba(14,165,233,.20),transparent 60%),
  radial-gradient(760px 520px at 50% 108%,rgba(34,211,238,.13),transparent 62%),var(--bg)}
.bg-fx::before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.045) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.045) 1px,transparent 1px);background-size:74px 74px;mask-image:radial-gradient(120% 88% at 50% 0%,#000 8%,transparent 76%);-webkit-mask-image:radial-gradient(120% 88% at 50% 0%,#000 8%,transparent 76%)}
.bg-fx::after{content:"";position:absolute;inset:0;background-image:radial-gradient(rgba(255,255,255,.13) 1px,transparent 1px);background-size:34px 34px;opacity:.5;mask-image:radial-gradient(80% 60% at 74% 8%,#000,transparent 70%);-webkit-mask-image:radial-gradient(80% 60% at 74% 8%,#000,transparent 70%)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;font-family:var(--font-d);font-weight:700;font-size:15px;padding:14px 24px;border-radius:999px;border:1px solid transparent;cursor:pointer;white-space:nowrap;transition:transform .18s ease,box-shadow .25s ease,background .25s ease,border-color .25s ease}
.btn svg{flex:0 0 auto}
.btn-primary{background:var(--grad);color:#fff;box-shadow:var(--glow)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 24px 60px -14px rgba(99,102,241,.85)}
.btn-sm{padding:10px 18px;font-size:13.5px}
.btn-lg{padding:17px 32px;font-size:16.5px}
@media (prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important;scroll-behavior:auto!important}}

/* ============================== HEADER ============================== */
.site-head{position:sticky;top:0;z-index:60;backdrop-filter:blur(16px) saturate(150%);background:rgba(7,11,20,.72);border-bottom:1px solid var(--line)}
.site-head.scrolled{background:rgba(7,11,20,.93);box-shadow:0 10px 40px -20px rgba(0,0,0,.9)}
.site-head__bar{position:relative;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:12px 0}
.site-head__brand{display:inline-flex;align-items:center;gap:11px;color:#fff;line-height:1}
.site-head__logo{width:38px;height:38px;border-radius:11px;object-fit:cover;flex:0 0 auto;box-shadow:0 6px 20px rgba(0,0,0,.5);display:block}
.site-head__name{font-family:var(--font-d);font-size:20px;font-weight:800;letter-spacing:-.02em}
.site-head__name small{display:block;font-family:var(--font);font-size:10px;font-weight:600;letter-spacing:.14em;text-transform:uppercase;color:var(--brand3);margin-top:1px}
.site-head__nav{display:flex;align-items:center;gap:2px}
.site-head__nav a{color:var(--txt2);font-size:14px;font-weight:600;padding:9px 13px;border-radius:10px;white-space:nowrap;transition:color .18s,background .18s}
.site-head__nav a:hover{color:#fff;background:rgba(255,255,255,.07)}
.site-head__nav a.app{background:var(--grad);color:#fff;font-weight:700;margin-left:8px;box-shadow:var(--glow)}
.site-head__toggle{display:none;margin-left:auto;background:var(--panel);border:1px solid var(--line);border-radius:11px;padding:10px 12px;cursor:pointer;flex-direction:column;gap:5px}
.site-head__toggle span{display:block;width:20px;height:2px;border-radius:2px;background:#fff}
@media(min-width:881px){.site-head__toggle{display:none}.site-head__nav{display:flex;position:static;height:auto;max-height:none;padding:0;border:0;background:none;box-shadow:none;flex-direction:row;align-items:center}}
@media(max-width:880px){.site-head__toggle{display:flex}.site-head__nav{display:none;position:absolute;left:0;right:0;top:calc(100% + 12px);z-index:80;flex-direction:column;align-items:stretch;gap:4px;max-height:calc(100vh - 96px);overflow-y:auto;background:rgba(10,16,32,.99);border:1px solid var(--line2);border-radius:var(--radius);padding:10px;backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);box-shadow:var(--shadow)}.site-head__nav.open{display:flex}.site-head__nav a{padding:12px 14px;text-align:left;border-radius:11px}.site-head__nav a.app{margin:4px 0 0;text-align:center}}

/* ========================= BỘ CHỌN NGÔN NGỮ ========================= */
.langdrop{position:relative;display:inline-block;margin:18px 0 0}
.langdrop__btn{display:inline-flex;align-items:center;gap:9px;font-family:inherit;font-size:13px;font-weight:600;color:var(--txt);background:var(--panel);border:1px solid var(--line2);border-radius:999px;padding:9px 15px;cursor:pointer;transition:border-color .18s,background .18s,box-shadow .18s;line-height:1}
.langdrop__btn:hover{border-color:var(--brand3);background:rgba(34,211,238,.10)}
.langdrop.open .langdrop__btn{border-color:var(--brand3);background:rgba(34,211,238,.12);box-shadow:0 0 0 3px rgba(34,211,238,.12)}
.langdrop__btn svg{width:18px;height:18px;flex:none;color:var(--brand3)}
.langdrop__btn .chev{width:14px;height:14px;color:var(--muted);transition:transform .2s}
.langdrop.open .langdrop__btn .chev{transform:rotate(180deg)}
.langdrop__menu{position:absolute;top:calc(100% + 10px);left:0;z-index:60;min-width:232px;background:rgba(10,16,32,.98);border:1px solid var(--line2);border-radius:16px;box-shadow:var(--shadow);padding:8px;backdrop-filter:blur(24px);display:none;grid-template-columns:1fr;gap:2px}
.langdrop.open .langdrop__menu{display:grid}
.langdrop__menu a,.langdrop__menu span{display:flex;align-items:center;gap:10px;padding:10px 12px;border-radius:11px;color:var(--txt2);font-size:13.5px;font-weight:600;transition:background .16s,color .16s;white-space:nowrap}
.langdrop__menu a:hover{background:rgba(34,211,238,.12);color:#fff}
.langdrop__menu span{background:rgba(99,102,241,.14);color:#fff;cursor:default}
.langdrop__menu span::after{content:"\2713";margin-left:auto;color:var(--brand3);font-weight:800}
.langdrop__menu em{font-style:normal;font-weight:700;color:var(--muted);font-size:11px;text-transform:uppercase;letter-spacing:.1em;padding:8px 12px 4px}
@media(max-width:520px){.langdrop{margin-top:14px}.langdrop__menu{min-width:214px}}
.langdrop--up .langdrop__menu{top:auto;bottom:calc(100% + 10px)}

/* ================================ HERO ================================ */
.hero{padding:clamp(46px,7vw,86px) 0 28px;position:relative}
.hero__grid{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);gap:clamp(28px,5vw,64px);align-items:center}
@media(max-width:960px){.hero__grid{grid-template-columns:1fr;gap:38px}}
.hero h1{font-size:clamp(34px,5.4vw,62px);font-weight:900;letter-spacing:-.04em;margin:18px 0 0}
.lede{color:var(--txt2);font-size:clamp(16px,1.75vw,19px);line-height:1.68;margin-top:20px;max-width:60ch}
.lede strong{color:#fff;font-weight:700}
.hero__actions{display:flex;flex-wrap:wrap;gap:13px;margin-top:30px}
.hero__trust{display:flex;flex-wrap:wrap;gap:18px;margin-top:26px;color:var(--muted);font-size:13px}
.hero__trust span{display:inline-flex;align-items:center;gap:7px}
.hero__trust i{width:6px;height:6px;border-radius:50%;background:var(--up);box-shadow:0 0 0 4px rgba(52,211,153,.16);display:inline-block}

/* ====================== BẢNG TÍN HIỆU (CONSOLE) ====================== */
.console{border:1px solid var(--line2);border-radius:var(--radius-lg);background:linear-gradient(180deg,rgba(18,26,48,.96),rgba(9,14,28,.96));box-shadow:var(--shadow);overflow:hidden;backdrop-filter:blur(18px);position:relative}
.console::after{content:"";position:absolute;inset:0;border-radius:inherit;pointer-events:none;background:linear-gradient(140deg,rgba(99,102,241,.22),transparent 42%)}
.console__bar{display:flex;align-items:center;gap:10px;padding:13px 16px;border-bottom:1px solid var(--line);background:rgba(255,255,255,.028)}
.console__dots{display:flex;gap:6px}
.console__dots i{width:10px;height:10px;border-radius:50%;background:rgba(255,255,255,.16)}
.console__dots i:nth-child(1){background:#fb7185}.console__dots i:nth-child(2){background:#fbbf24}.console__dots i:nth-child(3){background:#34d399}
.console__title{font-family:var(--font-m);font-size:12px;color:var(--muted);letter-spacing:.04em}
.console__live{margin-left:auto;display:inline-flex;align-items:center;gap:6px;font-size:11px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--up)}
.console__live i{width:7px;height:7px;border-radius:50%;background:var(--up);animation:pulse 1.6s ease-in-out infinite}
@keyframes pulse{0%,100%{opacity:1;box-shadow:0 0 0 0 rgba(52,211,153,.55)}50%{opacity:.55;box-shadow:0 0 0 6px rgba(52,211,153,0)}}
.console__body{padding:6px 8px 12px}
.sig{display:grid;grid-template-columns:auto 1fr auto;gap:12px;align-items:center;padding:13px 12px;border-radius:14px;transition:background .2s}
.sig + .sig{border-top:1px solid var(--line)}
.sig:hover{background:rgba(255,255,255,.035)}
.sig__sym{font-family:var(--font-m);font-weight:700;font-size:14px}
.sig__dir{font-size:10.5px;font-weight:800;letter-spacing:.09em;text-transform:uppercase;padding:3px 9px;border-radius:999px;justify-self:start}
.sig__dir.buy{color:var(--buy);background:var(--buybg);border:1px solid rgba(52,211,153,.32)}
.sig__dir.sell{color:var(--sell);background:var(--sellbg);border:1px solid rgba(251,113,133,.32)}
.sig__lv{font-family:var(--font-m);font-size:12.5px;color:var(--txt2);white-space:nowrap;text-align:right}
.sig__lv b{color:#fff}
.sig__tf{font-family:var(--font-m);font-size:11px;color:var(--muted);margin-left:6px}
@media(max-width:420px){.sig__lv{font-size:11.5px}}
.console__foot{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:12px 16px;border-top:1px solid var(--line);background:rgba(0,0,0,.25);font-size:12px;color:var(--muted)}
.console__foot b{color:var(--gold);font-family:var(--font-m)}

/* ============================= SỐ LIỆU ============================= */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin:clamp(34px,5vw,58px) 0 0}
@media(max-width:760px){.stats{grid-template-columns:repeat(2,1fr)}}
.stat{border:1px solid var(--line);border-radius:var(--radius);background:linear-gradient(180deg,rgba(255,255,255,.05),rgba(255,255,255,.02));padding:20px 18px;text-align:center;backdrop-filter:blur(12px);transition:border-color .25s,transform .25s}
.stat:hover{border-color:var(--line2);transform:translateY(-3px)}
.stat .v{font-family:var(--font-d);font-size:clamp(26px,3.6vw,38px);font-weight:800;line-height:1;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.stat .k{margin-top:8px;font-size:12.5px;color:var(--muted)}

/* ======================== KHỐI NỘI DUNG CHUNG ======================== */
.sec{padding:clamp(46px,7vw,84px) 0;border-top:1px solid var(--line);margin:0}
.sec:first-of-type{border-top:0}
.sec__head{max-width:74ch;margin-bottom:clamp(26px,4vw,44px)}
.sec__head h2{font-size:clamp(26px,3.6vw,40px);letter-spacing:-.035em;margin-top:14px}
.sec__head p{color:var(--txt2);font-size:clamp(15px,1.6vw,17px);margin-top:14px;line-height:1.68}

/* ============================== THỊ TRƯỜNG ============================== */
.market-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
@media(max-width:1000px){.market-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:520px){.market-grid{grid-template-columns:1fr}}
.market-card{border:1px solid var(--line);border-radius:var(--radius);background:linear-gradient(180deg,rgba(255,255,255,.05),rgba(255,255,255,.018));padding:24px 22px;display:flex;flex-direction:column;gap:12px;backdrop-filter:blur(12px);transition:transform .28s ease,border-color .28s ease,box-shadow .28s ease;position:relative;overflow:hidden}
.market-card::before{content:"";position:absolute;inset:0 0 auto;height:2px;background:var(--grad);opacity:0;transition:opacity .28s}
.market-card:hover{transform:translateY(-5px);border-color:var(--line2);box-shadow:var(--shadow)}
.market-card:hover::before{opacity:1}
.market-card .ico{width:50px;height:50px;border-radius:14px;display:grid;place-items:center;font-size:24px;background:rgba(99,102,241,.14);border:1px solid rgba(99,102,241,.28)}
.market-card h3{font-size:19px}
.market-card p{color:var(--txt2);font-size:14px;line-height:1.6}
.tags{display:flex;flex-wrap:wrap;gap:7px;margin-top:auto;padding-top:6px}
.tag{font-size:11.5px;font-weight:600;color:var(--brand3);background:rgba(34,211,238,.09);border:1px solid rgba(34,211,238,.22);border-radius:999px;padding:3px 10px}

/* ============================ CÁC BƯỚC ============================ */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;counter-reset:s}
@media(max-width:900px){.steps{grid-template-columns:1fr}}
.step{border:1px solid var(--line);border-radius:var(--radius);background:var(--panel);padding:28px 24px;position:relative;backdrop-filter:blur(12px)}
.step::before{counter-increment:s;content:"0" counter(s);font-family:var(--font-m);font-size:13px;font-weight:700;color:var(--brand3);display:block;margin-bottom:14px;letter-spacing:.08em}
.step h3{font-size:19px}
.step p{color:var(--txt2);font-size:14.5px;margin-top:10px;line-height:1.66}

/* ============================= TÍNH NĂNG ============================= */
.feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
@media(max-width:980px){.feature-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:600px){.feature-grid{grid-template-columns:1fr}}
.feature{border:1px solid var(--line);border-radius:var(--radius);background:linear-gradient(180deg,rgba(255,255,255,.045),rgba(255,255,255,.016));padding:24px 22px;display:flex;flex-direction:column;gap:12px;transition:transform .28s,border-color .28s,box-shadow .28s}
.feature:hover{transform:translateY(-4px);border-color:var(--line2);box-shadow:var(--shadow)}
.feature .ico{width:44px;height:44px;border-radius:13px;display:grid;place-items:center;font-size:21px;background:rgba(14,165,233,.13);border:1px solid rgba(14,165,233,.26)}
.feature h3{font-size:17px}
.feature p{color:var(--txt2);font-size:14px;line-height:1.62}

/* ====================== CREDIT & GIỚI THIỆU ====================== */
.credits{border:1px solid var(--line2);border-radius:var(--radius-lg);background:linear-gradient(150deg,rgba(99,102,241,.15),rgba(14,165,233,.07) 55%,rgba(34,211,238,.05));padding:clamp(26px,4vw,44px);position:relative;overflow:hidden}
.credit-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin:26px 0 24px}
@media(max-width:820px){.credit-grid{grid-template-columns:repeat(2,1fr)}}
.credit-cell{border:1px solid var(--line);border-radius:var(--radius);background:rgba(7,11,20,.55);padding:18px;text-align:center;backdrop-filter:blur(10px)}
.credit-cell .big{font-family:var(--font-d);font-size:clamp(22px,2.8vw,30px);font-weight:800;display:block;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.credit-cell .lbl{font-size:12.5px;color:var(--txt2);display:block;margin-top:8px;line-height:1.45}
.plans{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
@media(max-width:760px){.plans{grid-template-columns:1fr}}
.plan{border:1px solid var(--line);border-radius:var(--radius);background:rgba(7,11,20,.55);padding:20px;backdrop-filter:blur(10px)}
.plan h3{font-size:16px;color:#fff}
.plan .price{font-family:var(--font-m);font-size:12.5px;color:var(--brand3);margin:8px 0 6px;letter-spacing:.06em;text-transform:uppercase}
.plan .note{font-size:13px;color:var(--txt2);line-height:1.55}

/* ========================== CÀI ĐẶT PWA ========================== */
.install-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
@media(max-width:900px){.install-grid{grid-template-columns:1fr}}
.install{border:1px solid var(--line);border-radius:var(--radius);background:var(--panel);padding:24px 22px;backdrop-filter:blur(12px)}
.install h3{font-size:17px}
.install ol{margin-top:14px;padding-left:0;list-style:none;counter-reset:i;color:var(--txt2);font-size:14px}
.install ol li{position:relative;padding-left:30px;margin:9px 0;line-height:1.55}
.install ol li::before{counter-increment:i;content:counter(i);position:absolute;left:0;top:1px;width:20px;height:20px;border-radius:50%;background:rgba(34,211,238,.14);border:1px solid rgba(34,211,238,.3);color:var(--brand3);font-size:11px;font-weight:700;display:grid;place-items:center}
.install strong{color:#fff}

/* ======================== LIÊN KẾT NỘI DUNG ======================== */
.linknet__hubs{display:flex;flex-wrap:wrap;gap:11px}
.linknet__hubs a{border:1px solid var(--line2);border-radius:999px;padding:11px 19px;font-size:14px;font-weight:600;color:var(--txt);background:var(--panel);transition:all .2s}
.linknet__hubs a:hover{border-color:var(--brand3);color:#fff;background:rgba(34,211,238,.12);transform:translateY(-2px)}
.cta-final{margin:clamp(20px,3vw,34px) 0 0;padding:clamp(26px,4vw,44px);border-radius:var(--radius-lg);background:linear-gradient(130deg,rgba(99,102,241,.28),rgba(14,165,233,.16) 60%,rgba(34,211,238,.12));border:1px solid var(--line2);display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap;backdrop-filter:blur(14px)}
.cta-final strong{display:block;font-family:var(--font-d);font-size:clamp(20px,2.6vw,28px);font-weight:800;letter-spacing:-.03em}
.cta-final span{display:block;color:var(--txt2);font-size:14.5px;margin-top:8px}

/* =========================== CẢNH BÁO RỦI RO =========================== */
.disclaimer{border:1px solid rgba(251,191,36,.26);background:rgba(251,191,36,.06);border-radius:var(--radius);padding:18px 20px;margin:clamp(28px,4vw,46px) 0 0;color:#f3e2bb;font-size:13.5px;line-height:1.6}
.disclaimer strong{color:#ffe6ad}

/* =============================== CHÂN TRANG =============================== */
footer{padding:clamp(32px,4vw,48px) 0 40px;color:var(--muted);font-size:13.5px}
footer p{margin:.5em 0}
footer a{color:var(--txt2);font-weight:600}
footer a:hover{color:#fff}
.foot__grid{display:flex;flex-wrap:wrap;justify-content:space-between;gap:14px;align-items:flex-end}

/* =============================== HỎI ĐÁP ===============================
   Dùng <details>/<summary> gốc của trình duyệt nên không cần JavaScript.
   :marker phải ẩn vì mũi tên mặc định nằm sai vị trí so với thiết kế. */
.faq{display:grid;gap:12px;max-width:88ch}
.faq__item{border:1px solid var(--line);border-radius:var(--radius);background:var(--panel);padding:16px 20px;backdrop-filter:blur(10px)}
.faq__item[open]{border-color:var(--line2);background:linear-gradient(180deg,rgba(255,255,255,.05),rgba(255,255,255,.02))}
.faq__item summary{cursor:pointer;font-family:var(--font-d);font-weight:700;font-size:16.5px;color:var(--txt);list-style:none;display:flex;align-items:center;gap:12px}
.faq__item summary::-webkit-details-marker{display:none}
.faq__item summary::before{content:"+";font-family:var(--font-m);color:var(--brand3);font-weight:700;width:18px;flex:0 0 18px;text-align:center}
.faq__item[open] summary::before{content:"\2013"}
.faq__item p{color:var(--txt2);font-size:14.5px;line-height:1.68;margin-top:12px}


/* ==================== HIỆU ỨNG XUẤT HIỆN KHI TẢI ==================== */
.rv{opacity:0;transform:translateY(20px);animation:rv .7s cubic-bezier(.22,.68,.32,1) forwards}
@keyframes rv{to{opacity:1;transform:none}}

/* Khi in: bỏ mọi thứ không phải nội dung (menu, đổi ngôn ngữ, nền động). */
@media print{.notprint,.langdrop,.langdrop--up,.bg-fx{display:none}.site-head{position:static}}

/* ====================== NGÔN NGỮ VIẾT TỪ PHẢI SANG TRÁI ======================
   Chỉ /ar cần lật chiều. KHÔNG lật bằng cách viết lại 12 bản HTML: thuộc tính
   <html dir="rtl"> + hai dòng CSS này là đủ, vì mọi khối đều dùng flex/grid nên
   trục chính tự đảo theo direction của tài liệu. */
[dir="rtl"] .eyebrow::before{margin-left:0}
[dir="rtl"] .langdrop__menu span::after{margin-left:0;margin-right:auto}