/* Token (màu, font, bo góc) nằm ở theme.css, tự sinh từ theme/theme.json: sửa theme ở đó, không sửa ở đây. File này chỉ dùng var(--...). */
* { box-sizing: border-box; }
[hidden] { display:none !important; } /* các lớp đặt display (.stack, .row...) không được làm thuộc tính hidden mất tác dụng */
html { scroll-behavior: smooth; }
body { margin:0; background:var(--bg); color:var(--fg); font:16px/1.65 var(--font); }
[data-lang="vi"] .en, [data-lang="en"] .vi { display:none !important; }
a { color:var(--brand1); }
.wrap { max-width:1040px; margin:0 auto; padding:0 20px; }
header.top { position:sticky; top:0; z-index:5; background:color-mix(in srgb,var(--bg) 88%,transparent); backdrop-filter:blur(10px); border-bottom:1px solid var(--line); }
header.top .wrap { display:flex; align-items:center; gap:18px; height:60px; }
.brand { display:flex; align-items:center; gap:10px; font-weight:700; color:var(--fg); text-decoration:none; }
.brand img { width:30px; height:30px; border-radius:8px; }
nav { margin-left:auto; display:flex; align-items:center; gap:18px; }
nav a { color:var(--mut); text-decoration:none; font-size:15px; }
nav a:hover { color:var(--fg); }
.lang { border:1px solid var(--line); background:var(--card); color:var(--fg); border-radius:8px; padding:4px 10px; font:inherit; font-size:13px; cursor:pointer; }
.btn { display:inline-flex; align-items:center; justify-content:center; padding:12px 24px; border-radius:var(--radius); font-weight:600; text-decoration:none; border:1px solid var(--line); background:var(--card); color:var(--fg); }
.btn.primary { background:var(--grad); color:#fff; border:0; box-shadow:0 8px 22px var(--shadow-brand); }
.btn.off { opacity:.6; pointer-events:none; }
.hero { text-align:center; padding:84px 0 56px; }
.hero img.big { width:84px; height:84px; border-radius:22px; box-shadow:0 12px 30px var(--shadow-brand); }
h1 { font-size:clamp(30px,5vw,48px); line-height:1.15; margin:22px auto 14px; max-width:780px; }
h1 em { font-style:normal; background:var(--grad); -webkit-background-clip:text; background-clip:text; color:transparent; }
.lead { color:var(--mut); font-size:19px; max-width:640px; margin:0 auto 28px; }
.cta { display:flex; gap:12px; justify-content:center; flex-wrap:wrap; }
.note { color:var(--mut); font-size:13px; margin-top:12px; }
section { padding:44px 0; }
h2 { font-size:28px; margin:0 0 8px; text-align:center; }
.sub { text-align:center; color:var(--mut); margin:0 auto 30px; max-width:620px; }
.grid { display:grid; gap:16px; grid-template-columns:repeat(auto-fit,minmax(230px,1fr)); }
.card { background:var(--card); border:1px solid var(--line); border-radius:var(--radius-lg); padding:22px; }
.card h3 { margin:0 0 6px; font-size:17px; }
.card p { margin:0; color:var(--mut); font-size:15px; }
.ico { width:38px; height:38px; border-radius:10px; background:var(--grad); color:#fff; display:grid; place-items:center; font-weight:700; margin-bottom:12px; }
.plans { display:grid; gap:16px; grid-template-columns:repeat(auto-fit,minmax(250px,1fr)); align-items:stretch; }
.plan { display:flex; flex-direction:column; }
.plan.hot { border:2px solid var(--brand1); }
.price { font-size:34px; font-weight:700; margin:8px 0 0; }
.price small { font-size:15px; font-weight:400; color:var(--mut); }
.plan ul { padding-left:20px; margin:14px 0 0; color:var(--mut); font-size:15px; }
.toggle { display:flex; justify-content:center; gap:6px; margin-bottom:22px; }
.toggle button { border:1px solid var(--line); background:var(--card); color:var(--fg); padding:7px 18px; border-radius:var(--radius-pill); font:inherit; cursor:pointer; }
.toggle button.on { background:var(--grad); color:#fff; border-color:transparent; }
[data-bill="month"] .yr, [data-bill="year"] .mo { display:none; }
details { background:var(--card); border:1px solid var(--line); border-radius:12px; padding:14px 18px; margin-bottom:10px; }
summary { cursor:pointer; font-weight:600; }
details p { color:var(--mut); margin:10px 0 0; }
footer { border-top:1px solid var(--line); margin-top:40px; padding:28px 0 40px; color:var(--mut); font-size:14px; }
footer .wrap { display:flex; flex-wrap:wrap; gap:10px 22px; align-items:center; }
footer .sp { flex:1; }
footer a { color:var(--mut); }
.doc { max-width:760px; margin:0 auto; padding:48px 20px 20px; }
.doc h1 { text-align:left; font-size:34px; margin:0 0 6px; }
.doc h2 { text-align:left; font-size:21px; margin:30px 0 6px; }
.doc p, .doc li { color:var(--fg); }
.doc .upd { color:var(--mut); font-size:14px; }
/* ---- Thành phần dùng lại được (trang tài khoản và các trang sau): chỉ dùng token của theme.css, không đặt màu/font riêng ---- */
button.btn { cursor:pointer; font:inherit; font-weight:600; }
.btn.sm { padding:8px 16px; font-size:14px; }
.btn.danger { color:var(--danger); border-color:color-mix(in srgb,var(--danger) 45%,var(--line)); }
.btn[disabled] { opacity:.55; pointer-events:none; }
.stack { display:grid; gap:16px; }
.row { display:flex; align-items:center; gap:12px; flex-wrap:wrap; }
.row .grow { flex:1; min-width:0; }
.row .right { text-align:right; }
.center { text-align:center; }
.muted { color:var(--mut); font-size:15px; }
.strong { font-weight:600; }
.strong.big { font-size:22px; }
.big-num { font-size:40px; font-weight:700; line-height:1.1; }
.avatar { display:inline-grid; place-items:center; width:44px; height:44px; flex:none; border-radius:50%; background:var(--grad); color:#fff; font-weight:700; overflow:hidden; }
.avatar img { width:100%; height:100%; object-fit:cover; }
.badge { display:inline-block; padding:2px 10px; border-radius:var(--radius-pill); background:color-mix(in srgb,var(--brand1) 14%,transparent); color:var(--brand1); font-size:13px; font-weight:600; }
.msg { padding:10px 14px; border-radius:var(--radius); border:1px solid var(--line); background:var(--card); margin:0 0 16px; }
.msg.ok { color:var(--ok); border-color:color-mix(in srgb,var(--ok) 40%,var(--line)); }
.msg.err { color:var(--danger); border-color:color-mix(in srgb,var(--danger) 40%,var(--line)); }
.kv { width:100%; border-collapse:collapse; margin-top:14px; font-size:14px; }
.kv td { padding:7px 0; border-top:1px solid var(--line); color:var(--mut); }
.kv td:last-child { text-align:right; color:var(--fg); }
.acct { max-width:760px; margin:0 auto; padding:36px 20px 20px; }
.gbtn { display:flex; justify-content:center; min-height:44px; margin:18px 0 6px; }
.plan .confirm { color:var(--mut); font-size:13px; margin:10px 0 0; }
.plan .actions { margin-top:auto; padding-top:16px; display:grid; gap:8px; }
.danger-zone { border-color:color-mix(in srgb,var(--danger) 30%,var(--line)); }
nav .btn.sm { padding:6px 14px; }
@media (max-width: 640px) { nav a { display: none; } nav a.btn { display: inline-flex; } .hero { padding: 48px 0 32px; } }
.bad-note{margin:6px 0;padding:10px 12px;border:1px solid #f8717166;border-radius:10px;background:#f871711a;font-size:14px}
.bad-note ul{margin:6px 0 8px 18px;padding:0}
.contact{margin-top:8px}.contact-info{margin-top:6px;font-size:14px}