/* Be Vietnam Pro — self-host, subset latin + vietnamese */
@font-face {
  font-family: "Be Vietnam Pro"; font-style: normal; font-weight: 400; font-display: swap;
  src: url("fonts/bvp-vietnamese-400.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("fonts/bvp-latin-400.woff2") format("woff2");
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+2000-206F, U+2074, 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("fonts/bvp-vietnamese-500.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("fonts/bvp-latin-500.woff2") format("woff2");
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+2000-206F, U+2074, 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("fonts/bvp-vietnamese-700.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("fonts/bvp-latin-700.woff2") format("woff2");
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+2000-206F, U+2074, 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: 800; font-display: swap;
  src: url("fonts/bvp-vietnamese-800.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: 800; font-display: swap;
  src: url("fonts/bvp-latin-800.woff2") format("woff2");
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+2000-206F, U+2074, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}

:root {
  --bg: #f6f9fd;
  --surface: #ffffff;
  --ink: #0e1a2b;
  --ink-2: #44536b;
  --ink-3: #8794a9;
  --line: #e2e9f2;
  --brand: #1d6ef5;
  --brand-2: #0ea5e9;
  --brand-deep: #1246a8;
  --brand-soft: #e8f1ff;
  --green: #059669;
  --green-soft: #e7f6f0;
  --amber: #b45309;
  --amber-soft: #fdf3e2;
  --red: #dc2626;
  --radius: 14px;
  --shadow: 0 1px 2px rgba(14, 26, 43, .05), 0 8px 24px -12px rgba(14, 26, 43, .12);
  --shadow-lg: 0 24px 60px -24px rgba(14, 26, 43, .25);
  --font: "Be Vietnam Pro", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { font-family: var(--font); background: var(--bg); color: var(--ink); line-height: 1.6; font-size: 15.5px; }
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
button { font: inherit; cursor: pointer; border: 0; background: none; }
input, select, textarea { font: inherit; color: inherit; }

.wrap { max-width: 1120px; margin: 0 auto; padding: 0 20px; }

/* ---------- Header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255, 255, 255, .85);
  backdrop-filter: saturate(1.4) blur(12px);
  border-bottom: 1px solid var(--line);
}
.site-header .wrap { display: flex; align-items: center; gap: 28px; height: 64px; }
/* gap:0 vì "Autoera" và ".vn" là hai flex item riêng — để gap thì .vn bị đẩy xa ra.
   Khoảng cách với logo đặt bằng margin trên chính logo. */
.logo { display: flex; align-items: center; gap: 0; font-weight: 800; font-size: 19px; letter-spacing: -.02em; }
.logo .mark {
  width: 30px; height: 30px; border-radius: 9px; flex: none;
  background: linear-gradient(135deg, var(--brand), var(--brand-2));
  display: grid; place-items: center; color: #fff; font-size: 15px; font-weight: 800;
}
.logo .tld { color: var(--ink-3); font-weight: 600; }
.main-nav { display: flex; gap: 4px; margin-right: auto; }
.main-nav a {
  padding: 7px 13px; border-radius: 9px; color: var(--ink-2); font-weight: 500; font-size: 14.5px;
}
.main-nav a:hover { background: var(--brand-soft); color: var(--brand); }
.main-nav a.active { background: var(--brand-soft); color: var(--brand); font-weight: 600; }
.header-actions { display: flex; align-items: center; gap: 10px; }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 9px 18px; border-radius: 10px; font-weight: 600; font-size: 14.5px;
  transition: transform .12s ease, box-shadow .12s ease, background .12s ease;
  white-space: nowrap;
}
.btn:active { transform: translateY(1px); }
.btn-primary { background: linear-gradient(135deg, var(--brand), var(--brand-2)); color: #fff; box-shadow: 0 6px 18px -8px rgba(29, 110, 245, .55); }
.btn-primary:hover { box-shadow: 0 10px 24px -8px rgba(29, 110, 245, .65); }
.btn-ghost { color: var(--ink-2); }
.btn-ghost:hover { background: var(--brand-soft); color: var(--brand); }
.btn-outline { border: 1.5px solid var(--line); background: var(--surface); color: var(--ink); }
.btn-outline:hover { border-color: var(--brand); color: var(--brand); }
.btn-lg { padding: 13px 26px; font-size: 16px; border-radius: 12px; }
.btn-sm { padding: 6px 12px; font-size: 13.5px; border-radius: 8px; }
.btn-green { background: var(--green); color: #fff; }
.btn-block { width: 100%; }

/* ---------- Hero ---------- */
.hero {
  position: relative; overflow: hidden; isolation: isolate;
  background:
    radial-gradient(1100px 620px at 50% 42%, #0f2f5e, transparent 72%),
    linear-gradient(180deg, #050f1e, #06142a 55%, #050e1c);
  padding: 84px 0 76px;
  text-align: center;
  color: #eaf3ff;
}
/* viền sáng chuyển từ hero tối sang phần trang sáng */
.hero::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 1px;
  background: linear-gradient(90deg, transparent, rgba(86, 168, 255, .55), rgba(125, 211, 252, .75), rgba(86, 168, 255, .55), transparent);
}
#neural-canvas {
  position: absolute; inset: 0; width: 100%; height: 100%; z-index: -1; display: block;
}
/* mép trên/dưới của lưới mờ dần để không bị cắt cụt */
.hero-mask {
  position: absolute; inset: 0; z-index: -1; pointer-events: none;
  background:
    linear-gradient(180deg, rgba(5, 15, 30, .85), transparent 18%, transparent 80%, rgba(5, 14, 28, .9)),
    radial-gradient(52% 48% at 50% 47%, rgba(5, 13, 26, .72), transparent 78%);
}
.hero h1 {
  font-size: clamp(34px, 5.6vw, 60px); line-height: 1.08; letter-spacing: -.035em;
  font-weight: 800; max-width: 860px; margin: 0 auto 20px; color: #fff;
  text-shadow: 0 2px 40px rgba(5, 14, 28, .8);
}
.hero h1 .grad {
  background: linear-gradient(96deg, #7dd3fc, #56a8ff, #bae6fd, #56a8ff);
  background-size: 250% 100%;
  -webkit-background-clip: text; background-clip: text; color: transparent;
  animation: gradShift 7s ease-in-out infinite;
  /* inline-block để transform có tác dụng (transform không áp dụng cho thẻ inline);
     max-width giữ cho chữ vẫn xuống dòng được trên màn hẹp thay vì tràn ngang */
  display: inline-block; max-width: 100%;
  /* background-clip:text chỉ sơn trong hộp nền. line-height 1.08 bóp hộp lại khiến
     dấu nặng của "ệ" (tràn 15.2px dưới đường chân, hộp chỉ có 10.4px) bị cắt cụt.
     Nới hộp bằng padding rồi bù margin âm -> không xê dịch bố cục. */
  padding: .06em .04em .18em; margin: -.06em -.04em -.18em;
}
@keyframes gradShift { 0%, 100% { background-position: 0% 50%; } 50% { background-position: 100% 50%; } }

/* tách chữ để hiện dần từng ký tự */
.split-word { display: inline-block; white-space: nowrap; }
.split-char { display: inline-block; will-change: transform, opacity; }

.hero .wrap { position: relative; }
.hero-blob {
  position: absolute; border-radius: 50%; filter: blur(90px); opacity: .5; z-index: -1;
  pointer-events: none; will-change: transform; mix-blend-mode: screen;
}
.hero-blob.b1 {
  width: 640px; height: 640px; left: -180px; top: -180px;
  background: radial-gradient(circle, rgba(29, 110, 245, .5), transparent 65%);
  animation: blobFloat 24s ease-in-out infinite;
}
.hero-blob.b2 {
  width: 700px; height: 700px; right: -220px; top: -140px;
  background: radial-gradient(circle, rgba(14, 165, 233, .42), transparent 65%);
  animation: blobFloat 30s ease-in-out infinite reverse;
}
.hero-blob.b3 {
  width: 620px; height: 620px; left: 50%; margin-left: -310px; bottom: -380px;
  background: radial-gradient(circle, rgba(56, 189, 248, .32), transparent 65%);
  animation: blobFloat 27s ease-in-out 3s infinite;
}
@keyframes blobFloat {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(40px, 30px) scale(1.08); }
  66% { transform: translate(-30px, 15px) scale(.95); }
}
@media (prefers-reduced-motion: reduce) {
  .hero h1 .grad, .hero-blob { animation: none; }
}
.hero p.lead { font-size: 18px; color: #a9c3e0; max-width: 660px; margin: 0 auto 34px; }
.hero-cta { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }
.hero-cta .btn-lg { will-change: transform; }
.hero .btn-outline {
  background: rgba(255, 255, 255, .06); border-color: rgba(147, 197, 253, .3); color: #eaf3ff;
  backdrop-filter: blur(6px);
}
.hero .btn-outline:hover { border-color: #7dd3fc; color: #fff; background: rgba(125, 211, 252, .14); }
.hero .btn-primary { box-shadow: 0 10px 34px -10px rgba(56, 189, 248, .75); }
.hero-stats {
  display: flex; gap: 0; justify-content: center; margin-top: 54px; flex-wrap: wrap;
}
.hero-stats .stat { padding: 0 30px; position: relative; }
.hero-stats .stat + .stat::before {
  content: ""; position: absolute; left: 0; top: 12%; height: 76%; width: 1px;
  background: linear-gradient(180deg, transparent, rgba(125, 211, 252, .28), transparent);
}
.hero-stats .stat b {
  display: block; font-size: 30px; letter-spacing: -.02em; color: #fff;
  font-variant-numeric: tabular-nums;
}
.hero-stats .stat span { color: #7f9cbd; font-size: 13.5px; }

.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  background: rgba(125, 211, 252, .1); border: 1px solid rgba(125, 211, 252, .28); border-radius: 999px;
  padding: 7px 16px; font-size: 13px; font-weight: 600; color: #bae6fd; margin-bottom: 26px;
  backdrop-filter: blur(8px);
}
.eyebrow .dot { box-shadow: 0 0 0 0 rgba(52, 211, 153, .7); animation: dotPing 2.4s ease-out infinite; }
@keyframes dotPing {
  0% { box-shadow: 0 0 0 0 rgba(52, 211, 153, .65); }
  70%, 100% { box-shadow: 0 0 0 9px rgba(52, 211, 153, 0); }
}
@media (prefers-reduced-motion: reduce) { .eyebrow .dot { animation: none; } }

/* Header trong suốt khi còn nằm trên hero tối */
/* Ở đầu trang header có ô riêng trong luồng (không đè lên hero) nên nền body sáng
   sẽ lộ qua lớp kính -> dùng màu đặc trùng với đỉnh hero để liền khối. */
.site-header.over-hero {
  background: #050f1e; border-bottom-color: rgba(125, 211, 252, .12);
  backdrop-filter: none;
}
.site-header.over-hero .logo { color: #fff; }
.site-header.over-hero .logo .tld { color: #7f9cbd; }
.site-header.over-hero .main-nav a { color: #b7cbe4; }
.site-header.over-hero .main-nav a:hover,
.site-header.over-hero .main-nav a.active { background: rgba(125, 211, 252, .14); color: #e0f2fe; }
.site-header.over-hero .btn-ghost { color: #cfe0f5; }
.site-header.over-hero .btn-ghost:hover { background: rgba(125, 211, 252, .14); color: #fff; }
.eyebrow .dot { width: 7px; height: 7px; border-radius: 50%; background: var(--green); }

/* ---------- Sections ---------- */
.section { padding: 56px 0; }
.section-head { display: flex; align-items: end; justify-content: space-between; gap: 20px; margin-bottom: 26px; flex-wrap: wrap; }
.section-head h2 { font-size: 26px; letter-spacing: -.02em; font-weight: 700; }
.section-head p { color: var(--ink-2); margin-top: 4px; }
.section-head .more { color: var(--brand); font-weight: 600; font-size: 14.5px; }

/* ---------- Search & tabs ---------- */
.market-bar { display: flex; gap: 12px; flex-wrap: wrap; align-items: center; margin-bottom: 24px; }
.search {
  flex: 1; min-width: 260px; display: flex; align-items: center; gap: 10px;
  background: var(--surface); border: 1.5px solid var(--line); border-radius: 12px; padding: 11px 16px;
}
.search:focus-within { border-color: var(--brand); box-shadow: 0 0 0 3px rgba(29, 110, 245, .14); }
.search input { border: 0; outline: 0; flex: 1; background: none; font-size: 15px; }
.search svg { color: var(--ink-3); flex: none; }
.tabs { display: flex; gap: 6px; background: var(--surface); border: 1px solid var(--line); padding: 5px; border-radius: 12px; flex-wrap: wrap; }
.tabs button { padding: 8px 16px; border-radius: 9px; font-weight: 600; font-size: 14px; color: var(--ink-2); }
.tabs button.active { background: linear-gradient(135deg, var(--brand), var(--brand-2)); color: #fff; }
.tabs button:not(.active):hover { background: var(--brand-soft); color: var(--brand); }

/* ---------- Cards grid ---------- */
.grid { display: grid; gap: 18px; }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
@media (max-width: 960px) { .grid-3, .grid-4 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 620px) { .grid-3, .grid-4 { grid-template-columns: 1fr; } }

.card {
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius);
  box-shadow: var(--shadow); overflow: hidden; display: flex; flex-direction: column;
  transition: transform .15s ease, box-shadow .15s ease;
}
a.card:hover, .card.hoverable:hover { transform: translateY(-3px); box-shadow: var(--shadow-lg); }
.card-thumb { height: 120px; display: flex; align-items: center; justify-content: flex-start; padding: 18px; position: relative; }
.card-thumb .emoji { font-size: 40px; filter: drop-shadow(0 6px 10px rgba(0,0,0,.12)); }
.card-body { padding: 16px 18px 18px; display: flex; flex-direction: column; gap: 8px; flex: 1; }
.card-body h3 { font-size: 16.5px; font-weight: 700; letter-spacing: -.01em; line-height: 1.35; }
.card-body .desc { color: var(--ink-2); font-size: 13.8px; line-height: 1.5; flex: 1; }
.card-meta { display: flex; align-items: center; justify-content: space-between; gap: 10px; margin-top: 4px; }
.price { font-weight: 800; font-size: 17px; letter-spacing: -.01em; }
.price small { color: var(--ink-3); font-weight: 500; font-size: 12px; }
.seller-line { display: flex; align-items: center; gap: 8px; font-size: 13px; color: var(--ink-2); }
.avatar {
  width: 26px; height: 26px; border-radius: 50%; flex: none;
  display: grid; place-items: center; color: #fff; font-size: 11.5px; font-weight: 700;
  background: linear-gradient(135deg, #0ea5e9, #1d6ef5);
}
.avatar.lg { width: 72px; height: 72px; font-size: 26px; border-radius: 20px; }
.avatar.md { width: 44px; height: 44px; font-size: 17px; border-radius: 13px; }

/* ---------- Badges ---------- */
.badge {
  display: inline-flex; align-items: center; gap: 5px; padding: 3px 10px;
  border-radius: 999px; font-size: 12px; font-weight: 600; white-space: nowrap;
}
.badge-cat { background: var(--brand-soft); color: var(--brand); }
.badge-green { background: var(--green-soft); color: var(--green); }
.badge-amber { background: var(--amber-soft); color: var(--amber); }
.badge-gray { background: #eef0f4; color: var(--ink-2); }
.badge-abs { position: absolute; top: 12px; right: 12px; box-shadow: var(--shadow); }

.stars { color: #f59e0b; font-size: 13px; letter-spacing: 1px; }
.rating-line { display: flex; align-items: center; gap: 6px; font-size: 13px; color: var(--ink-2); }
.rating-line b { color: var(--ink); }

.trust {
  display: inline-flex; align-items: center; gap: 6px; padding: 4px 11px; border-radius: 999px;
  font-size: 12.5px; font-weight: 700; background: var(--green-soft); color: var(--green);
}
.trust.mid { background: var(--amber-soft); color: var(--amber); }
.trust svg { flex: none; }

/* ---------- Feature blocks ---------- */
.feature-card { padding: 26px; }
.feature-card .icon {
  width: 44px; height: 44px; border-radius: 12px; display: grid; place-items: center;
  background: var(--brand-soft); font-size: 21px; margin-bottom: 14px;
}
.feature-card h3 { font-size: 17px; margin-bottom: 6px; }
.feature-card p { color: var(--ink-2); font-size: 14px; }

/* ---------- Steps ---------- */
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; counter-reset: step; }
@media (max-width: 960px) { .steps { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 620px) { .steps { grid-template-columns: 1fr; } }
.step { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 22px; position: relative; }
.step::before {
  counter-increment: step; content: counter(step);
  width: 30px; height: 30px; border-radius: 50%; display: grid; place-items: center;
  background: linear-gradient(135deg, var(--brand), var(--brand-2)); color: #fff; font-weight: 700; font-size: 14px;
  margin-bottom: 12px;
}
.step h4 { font-size: 15.5px; margin-bottom: 4px; }
.step p { font-size: 13.8px; color: var(--ink-2); }

/* ---------- Footer ---------- */
.site-footer { border-top: 1px solid var(--line); background: var(--surface); margin-top: 40px; }
.site-footer .wrap { padding: 40px 20px 28px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 30px; margin-bottom: 28px; }
@media (max-width: 820px) { .footer-grid { grid-template-columns: 1fr 1fr; } }
.footer-grid h4 { font-size: 13.5px; text-transform: uppercase; letter-spacing: .06em; color: var(--ink-3); margin-bottom: 12px; }
.footer-grid a { display: block; padding: 4px 0; color: var(--ink-2); font-size: 14px; }
.footer-grid a:hover { color: var(--brand); }
.footer-note { border-top: 1px solid var(--line); padding-top: 20px; display: flex; justify-content: space-between; gap: 14px; flex-wrap: wrap; color: var(--ink-3); font-size: 13px; }

.demo-banner {
  background: linear-gradient(90deg, #0a1e40, #123c78); color: #dbeafe;
  text-align: center; font-size: 13px; padding: 7px 16px;
}
.demo-banner b { color: #fff; }

/* ---------- Product detail ---------- */
.breadcrumbs { display: flex; gap: 8px; align-items: center; font-size: 13.5px; color: var(--ink-3); padding: 18px 0 0; flex-wrap: wrap; }
.breadcrumbs a:hover { color: var(--brand); }
.product-layout { display: grid; grid-template-columns: 1fr 360px; gap: 28px; align-items: start; padding: 24px 0 56px; }
@media (max-width: 900px) { .product-layout { grid-template-columns: 1fr; } }
.product-hero {
  border-radius: var(--radius); padding: 34px; display: flex; align-items: center; gap: 22px;
  background: linear-gradient(135deg, #e8f1ff, #e0f2fe); border: 1px solid var(--line); margin-bottom: 22px;
}
.product-hero .emoji { font-size: 64px; }
.product-hero h1 { font-size: 27px; letter-spacing: -.02em; line-height: 1.2; margin-bottom: 8px; }
.badge-row { display: flex; gap: 8px; flex-wrap: wrap; }
.panel { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow); }
.panel-pad { padding: 24px; }
.panel h2 { font-size: 19px; margin-bottom: 12px; letter-spacing: -.01em; }
.panel h3 { font-size: 16px; margin: 18px 0 8px; }
.panel p, .panel li { color: var(--ink-2); font-size: 14.5px; }
.panel ul { padding-left: 20px; display: grid; gap: 6px; }
.buy-box { position: sticky; top: 84px; }
.buy-box .price-big { font-size: 32px; font-weight: 800; letter-spacing: -.02em; }
.buy-box .price-big small { font-size: 14px; color: var(--ink-3); font-weight: 500; }
.line-item { display: flex; justify-content: space-between; font-size: 14px; color: var(--ink-2); padding: 7px 0; border-bottom: 1px dashed var(--line); }
.line-item:last-of-type { border-bottom: 0; }
.line-item b { color: var(--ink); }
.review { display: flex; gap: 13px; padding: 18px 0; border-top: 1px solid var(--line); }
.review .body { flex: 1; }
.review .who { display: flex; align-items: center; gap: 8px; margin-bottom: 3px; flex-wrap: wrap; }
.review .who b { font-size: 14.5px; }
.review .who span { color: var(--ink-3); font-size: 12.5px; }
.review p { font-size: 14px; color: var(--ink-2); }

/* ---------- Store page ---------- */
.store-head {
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius);
  box-shadow: var(--shadow); padding: 28px; display: flex; gap: 22px; align-items: flex-start;
  margin: 28px 0 24px; flex-wrap: wrap;
}
.store-head .info { flex: 1; min-width: 260px; }
.store-head h1 { font-size: 24px; letter-spacing: -.02em; display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.store-head .tagline { color: var(--ink-2); margin: 4px 0 12px; }
.store-stats { display: flex; gap: 26px; flex-wrap: wrap; margin-top: 6px; }
.store-stats .s b { display: block; font-size: 19px; letter-spacing: -.01em; }
.store-stats .s span { font-size: 12.5px; color: var(--ink-3); }
.chips { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 12px; }
.kv { display: grid; gap: 10px; }
.kv .row { display: flex; gap: 10px; font-size: 14px; }
.kv .row .k { color: var(--ink-3); min-width: 92px; flex: none; }

/* ---------- Feed ---------- */
.feed-layout { display: grid; grid-template-columns: 1fr 320px; gap: 26px; align-items: start; padding: 28px 0 56px; }
@media (max-width: 900px) { .feed-layout { grid-template-columns: 1fr; } }
.composer { padding: 18px; display: flex; gap: 12px; }
.composer .fake-input {
  flex: 1; background: var(--bg); border: 1.5px solid var(--line); border-radius: 999px;
  padding: 10px 18px; color: var(--ink-3); font-size: 14.5px; cursor: text;
}
.post { margin-bottom: 18px; }
.post-head { display: flex; gap: 12px; align-items: center; padding: 18px 20px 0; }
.post-head .who b { display: flex; align-items: center; gap: 7px; font-size: 15px; }
.post-head .who span { font-size: 12.5px; color: var(--ink-3); }
.post-body { padding: 12px 20px 16px; font-size: 14.8px; color: #2a2e45; }
.post-body p + p { margin-top: 8px; }
.attach {
  margin: 0 20px 16px; border: 1.5px solid var(--line); border-radius: 12px; padding: 14px 16px;
  display: flex; gap: 14px; align-items: center; background: var(--bg);
  transition: border-color .12s ease;
}
.attach:hover { border-color: var(--brand); }
.attach .emoji { font-size: 30px; }
.attach .t { flex: 1; }
.attach .t b { display: block; font-size: 14.5px; }
.attach .t span { font-size: 13px; color: var(--ink-2); }
.attach .go { color: var(--brand); font-weight: 700; font-size: 13.5px; white-space: nowrap; }
.post-foot { border-top: 1px solid var(--line); display: flex; gap: 4px; padding: 6px 12px; }
.post-foot button { flex: 1; padding: 8px; border-radius: 9px; color: var(--ink-2); font-size: 13.5px; font-weight: 600; }
.post-foot button:hover { background: var(--brand-soft); color: var(--brand); }
.side-card { padding: 20px; margin-bottom: 18px; }
.side-card h3 { font-size: 15px; margin-bottom: 12px; }
.side-card .item { display: flex; gap: 10px; align-items: center; padding: 8px 0; font-size: 14px; }
.side-card .item .t b { display: block; font-size: 13.8px; }
.side-card .item .t span { font-size: 12.5px; color: var(--ink-3); }

/* ---------- Forms / register ---------- */
.auth-layout { display: grid; grid-template-columns: 400px 1fr; gap: 30px; align-items: start; padding: 36px 0 60px; }
@media (max-width: 900px) { .auth-layout { grid-template-columns: 1fr; } }
.form-panel { padding: 28px; }
.form-panel h1 { font-size: 23px; letter-spacing: -.02em; margin-bottom: 4px; }
.form-panel .sub { color: var(--ink-2); font-size: 14.5px; margin-bottom: 22px; }
fieldset { border: 0; margin-bottom: 26px; }
legend {
  font-size: 13px; font-weight: 700; text-transform: uppercase; letter-spacing: .07em;
  color: var(--brand); margin-bottom: 14px; display: flex; align-items: center; gap: 8px;
}
legend::after { content: ""; height: 1px; background: var(--line); flex: 1; }
.field { margin-bottom: 15px; }
.field label { display: block; font-size: 13.5px; font-weight: 600; margin-bottom: 6px; }
.field label .req { color: var(--red); }
.field input, .field select, .field textarea {
  width: 100%; border: 1.5px solid var(--line); border-radius: 10px; padding: 10px 14px;
  background: var(--surface); outline: none; font-size: 14.5px;
  transition: border-color .12s ease, box-shadow .12s ease;
}
.field input:focus, .field select:focus, .field textarea:focus {
  border-color: var(--brand); box-shadow: 0 0 0 3px rgba(29, 110, 245, .14);
}
.field .hint { font-size: 12.5px; color: var(--ink-3); margin-top: 5px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
@media (max-width: 560px) { .form-row { grid-template-columns: 1fr; } }
.role-pick { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-bottom: 22px; }
.role-pick label {
  border: 1.5px solid var(--line); border-radius: 12px; padding: 15px; cursor: pointer; display: block;
  transition: border-color .12s ease, background .12s ease;
}
.role-pick label:has(input:checked) { border-color: var(--brand); background: var(--brand-soft); }
.role-pick input { display: none; }
.role-pick b { display: block; font-size: 14.5px; margin-bottom: 2px; }
.role-pick span { font-size: 12.8px; color: var(--ink-2); }
.check { display: flex; gap: 10px; align-items: flex-start; font-size: 13.8px; color: var(--ink-2); margin-bottom: 15px; }
.check input { margin-top: 4px; accent-color: var(--brand); }

/* ---------- Modal ---------- */
.modal-backdrop {
  position: fixed; inset: 0; background: rgba(15, 17, 32, .55); z-index: 100;
  display: none; align-items: center; justify-content: center; padding: 20px;
  backdrop-filter: blur(3px);
}
.modal-backdrop.open { display: flex; }
.modal {
  background: var(--surface); border-radius: 18px; max-width: 460px; width: 100%;
  box-shadow: var(--shadow-lg); overflow: hidden; animation: pop .18s ease;
}
@keyframes pop { from { transform: scale(.96); opacity: 0; } to { transform: scale(1); opacity: 1; } }
.modal-head { padding: 20px 24px 0; display: flex; justify-content: space-between; align-items: center; }
.modal-head h3 { font-size: 18px; }
.modal-head .x { font-size: 22px; color: var(--ink-3); line-height: 1; padding: 4px 8px; border-radius: 8px; }
.modal-head .x:hover { background: var(--bg); color: var(--ink); }
.modal-body { padding: 18px 24px 24px; }
.notice {
  border-radius: 10px; padding: 12px 15px; font-size: 13.5px; margin-top: 14px;
  background: var(--brand-soft); color: #1246a8; border: 1px solid #d3e3fd;
}
.notice.green { background: var(--green-soft); color: #065f46; border-color: #c9ecdf; }

/* ---------- Tables ---------- */
.table-scroll { overflow-x: auto; }
table.data { width: 100%; border-collapse: collapse; font-size: 14px; }
table.data th { text-align: left; font-size: 12.5px; text-transform: uppercase; letter-spacing: .05em; color: var(--ink-3); padding: 10px 14px; border-bottom: 1px solid var(--line); white-space: nowrap; }
table.data td { padding: 12px 14px; border-bottom: 1px solid var(--line); vertical-align: middle; }
table.data tr:last-child td { border-bottom: 0; }

.hidden { display: none !important; }

/* ---------- Logo SVG ---------- */
.logo .mark-svg {
  flex: none; display: block; width: 32px; height: 32px; margin-right: 10px;
  border-radius: 9px; filter: drop-shadow(0 4px 12px rgba(9, 31, 53, .45));
}
.logo .tld { margin-left: 1px; }

/* ---------- Mạch điện nối 4 bước ---------- */
.steps-flow { position: relative; }
.steps-rail {
  position: absolute; left: 0; right: 0; top: 36px; height: 24px; z-index: 0;
  pointer-events: none;
}
.steps-rail svg { width: 100%; height: 100%; display: block; overflow: visible; }
.steps-flow .step { position: relative; z-index: 1; }
@media (max-width: 960px) { .steps-rail { display: none; } }
@media (prefers-reduced-motion: reduce) {
  .circuit-pulse, .circuit-node-blink { display: none; }
}

/* ---------- Mobile ---------- */
@media (max-width: 760px) {
  .site-header .wrap {
    height: auto; flex-wrap: wrap; gap: 8px 12px; padding-top: 10px; padding-bottom: 10px;
  }
  .logo { font-size: 17px; }
  .header-actions { margin-left: auto; order: 2; }
  .header-actions .btn { padding: 8px 13px; font-size: 13.5px; }
  .main-nav {
    order: 3; width: 100%; margin: 0; overflow-x: auto; -webkit-overflow-scrolling: touch;
    scrollbar-width: none; gap: 2px;
  }
  .main-nav::-webkit-scrollbar { display: none; }
  .main-nav a { white-space: nowrap; padding: 7px 12px; }
  .hero { padding: 62px 0 56px; }
  .hero p.lead { font-size: 16px; margin-bottom: 26px; }
  .hero-cta { flex-direction: column; align-items: stretch; padding: 0 4px; }
  .hero-stats {
    display: grid; grid-template-columns: 1fr 1fr; gap: 22px 0; margin-top: 38px;
  }
  .hero-stats .stat { padding: 0 8px; }
  .hero-stats .stat + .stat::before { display: none; }
  .hero-stats .stat:nth-child(even)::after {
    content: ""; position: absolute; left: 0; top: 10%; height: 80%; width: 1px;
    background: linear-gradient(180deg, transparent, rgba(125, 211, 252, .22), transparent);
  }
  .hero-stats .stat b { font-size: 24px; }
  .site-header.over-hero { background: #050f1e; }
  .section { padding: 40px 0; }
  /* flex-wrap:wrap trong flex CỘT khiến mọi item bị kéo giãn theo item rộng nhất
     (dải tabs vốn để cuộn ngang, max-content ~452px) -> tràn ngang cả trang.
     nowrap + min-width:0 buộc các item bám đúng bề rộng cột. */
  .market-bar { flex-direction: column; align-items: stretch; flex-wrap: nowrap; }
  .market-bar > * { min-width: 0; }
  .tabs { justify-content: flex-start; overflow-x: auto; flex-wrap: nowrap; scrollbar-width: none; }
  .tabs::-webkit-scrollbar { display: none; }
  .tabs button { white-space: nowrap; }
  .store-head { padding: 20px; }
  .product-hero { padding: 22px; gap: 14px; }
  .product-hero .emoji { font-size: 44px; }
  .product-hero h1 { font-size: 22px; }
  .buy-box { position: static; }
  .panel-pad, .form-panel { padding: 20px 16px; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 20px; }
  /* iOS tự zoom khi focus input < 16px — giữ 16px để tránh */
  .field input, .field select, .field textarea, .search input { font-size: 16px; }
}
@media (hover: none) {
  a.card:hover, .card.hoverable:hover { transform: none; }
}

.feature-card .icon {
  color: var(--brand);
  background: linear-gradient(140deg, var(--brand-soft), #f0f7ff);
  border: 1px solid rgba(29, 110, 245, .14);
}
.feature-card .icon svg { width: 22px; height: 22px; }

/* ---------- Trust bar ---------- */
.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;
}
.trust-bar { background: var(--surface); border-bottom: 1px solid var(--line); }
.trust-bar .wrap {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; padding-block: 20px;
}
.trust-item { display: flex; gap: 11px; align-items: flex-start; }
.trust-item svg { width: 22px; height: 22px; flex: none; color: var(--brand); margin-top: 2px; }
.trust-item b { display: block; font-size: 14.5px; line-height: 1.3; }
.trust-item span { font-size: 12.8px; color: var(--ink-3); }
@media (max-width: 860px) { .trust-bar .wrap { grid-template-columns: 1fr 1fr; gap: 16px; } }
@media (max-width: 480px) { .trust-bar .wrap { grid-template-columns: 1fr; } }

/* ---------- Sắp xếp ---------- */
/* min-width:0 để ô select co được xuống dưới bề rộng nội dung của nó;
   mặc định min-width:auto khiến select thò ra ngoài khung trên màn hẹp */
.sort-box { min-width: 0; }
.sort-box select {
  border: 1.5px solid var(--line); background: var(--surface); border-radius: 12px;
  padding: 11px 14px; font-size: 14.5px; font-weight: 500; cursor: pointer; outline: none;
  width: 100%; max-width: 100%;
}
.sort-box select:focus { border-color: var(--brand); box-shadow: 0 0 0 3px rgba(29, 110, 245, .14); }

/* ---------- Bảo vệ người mua ---------- */
.protect-grid { display: grid; grid-template-columns: 1fr 320px; gap: 26px; align-items: start; }
@media (max-width: 900px) { .protect-grid { grid-template-columns: 1fr; } }
.protect-flow { display: grid; gap: 14px; }
.pf-step {
  position: relative; padding: 18px 20px 18px 22px;
  background: var(--bg); border: 1px solid var(--line); border-radius: var(--radius);
}
.pf-step::before {
  content: ""; position: absolute; left: 0; top: 14px; bottom: 14px; width: 3px;
  border-radius: 3px; background: linear-gradient(180deg, var(--brand), var(--brand-2));
}
.pf-step b { display: block; font-size: 15.5px; margin-bottom: 4px; }
.pf-step p { font-size: 14px; color: var(--ink-2); }
.protect-side { position: sticky; top: 84px; }
@media (max-width: 900px) { .protect-side { position: static; } }

/* ---------- Đánh giá ---------- */
.score-badge { display: flex; align-items: center; gap: 12px; }
.score-badge > b { font-size: 34px; letter-spacing: -.02em; line-height: 1; }
.score-badge .stars { display: block; font-size: 15px; }
.score-sub { display: block; font-size: 12.5px; color: var(--ink-3); }
.quote { display: flex; flex-direction: column; gap: 12px; }
.quote blockquote { font-size: 14.8px; color: #2a3646; line-height: 1.6; flex: 1; }
.quote figcaption { display: flex; align-items: center; gap: 10px; }
.quote figcaption b { display: block; font-size: 14.5px; }
.quote figcaption span:last-child { font-size: 12.8px; color: var(--ink-3); }

/* ---------- FAQ ---------- */
.faq-wrap { max-width: 860px; }
.faq {
  background: var(--bg); border: 1px solid var(--line); border-radius: var(--radius);
  margin-bottom: 10px; overflow: hidden;
}
.faq summary {
  cursor: pointer; padding: 16px 46px 16px 20px; font-weight: 600; font-size: 15.5px;
  position: relative; list-style: none;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary:hover { color: var(--brand); }
.faq summary:focus-visible { outline: 2px solid var(--brand); outline-offset: -2px; }
.faq summary::after {
  content: ""; position: absolute; right: 20px; top: 50%; width: 9px; height: 9px;
  border-right: 2px solid var(--ink-3); border-bottom: 2px solid var(--ink-3);
  transform: translateY(-70%) rotate(45deg); transition: transform .2s ease;
}
.faq[open] summary::after { transform: translateY(-30%) rotate(225deg); }
.faq[open] summary { color: var(--brand); }
.faq p { padding: 0 20px 18px; font-size: 14.5px; color: var(--ink-2); }

/* ---------- Dải kêu gọi cuối trang ---------- */
.cta-band {
  background:
    radial-gradient(800px 380px at 50% 0%, #123a72, transparent 70%),
    linear-gradient(180deg, #061426, #050e1c);
  padding: 52px 0; color: #eaf3ff; margin-top: 8px;
}
.cta-inner {
  display: flex; align-items: center; justify-content: space-between; gap: 26px; flex-wrap: wrap;
}
.cta-inner h2 { font-size: 25px; letter-spacing: -.02em; color: #fff; }
.cta-inner p { color: #a9c3e0; font-size: 15px; margin-top: 5px; }
.cta-form { display: flex; gap: 10px; flex-wrap: wrap; }
.cta-form input {
  border: 1.5px solid rgba(147, 197, 253, .3); background: rgba(255, 255, 255, .07);
  color: #fff; border-radius: 12px; padding: 13px 18px; font-size: 15.5px; min-width: 260px; outline: none;
}
.cta-form input::placeholder { color: #7f9cbd; }
.cta-form input:focus { border-color: #7dd3fc; box-shadow: 0 0 0 3px rgba(125, 211, 252, .18); }
.cta-form input[aria-invalid="true"] { border-color: #f87171; }
.cta-note { color: #7f9cbd; font-size: 12.8px; margin-top: 14px; }
.cta-note.ok { color: #6ee7b7; }
.cta-note.err { color: #fca5a5; }
@media (max-width: 700px) {
  .cta-inner { flex-direction: column; align-items: stretch; }
  .cta-form { flex-direction: column; }
  .cta-form input { min-width: 0; width: 100%; }
}