@font-face { font-family: "UNI Sans"; src: url("../fonts/UNISans-Regular.woff2") format("woff2"); font-weight: 400; font-display: swap; }
@font-face { font-family: "UNI Sans"; src: url("../fonts/UNISans-SemiBold.woff2") format("woff2"); font-weight: 600; font-display: swap; }
@font-face { font-family: "UNI Sans"; src: url("../fonts/UNISans-Bold.woff2") format("woff2"); font-weight: 700; font-display: swap; }

:root {
  --navy: #1B2A6B;
  --gold: #A8832F;        /* vàng kim đậm — dùng trên nền sáng */
  --gold-light: #C9A24B;  /* vàng kim — dùng trên nền tối */
  --mist: #F2F4F8;        /* nền Sương xanh */
  --paper: #FFFFFF;
  --ink: #1F2328;
  --muted: #4A5068;
  --line: #DCE1EC;
  --holding: #23282F;
  --consulting: #0B565E;
  --tech: #5B2DA0;
  --fourever: #2F5BFF;
  --radius: 14px;
  --wrap: 1120px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: "UNI Sans", "Be Vietnam Pro", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  color: var(--ink);
  background: var(--mist);
  line-height: 1.6;
  font-size: 17px;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; }
h1, h2, h3 { line-height: 1.2; margin: 0; text-wrap: balance; color: var(--navy); }
p { margin: 0; text-wrap: pretty; }
.nb { white-space: nowrap; }

/* Hai ngôn ngữ trên cùng một trang */
html[data-lang="vi"] [lang="en"]:not(html) { display: none !important; }
html[data-lang="en"] [lang="vi"]:not(html) { display: none !important; }

.wrap { max-width: var(--wrap); margin: 0 auto; padding: 0 24px; }
section { padding: 88px 0; }
.eyebrow { font-size: 14px; font-weight: 600; letter-spacing: .14em; text-transform: uppercase; color: var(--gold); margin-bottom: 14px; }
.section-title { font-size: clamp(28px, 3.4vw, 40px); font-weight: 700; margin-bottom: 16px; }
.section-lead { color: var(--muted); max-width: 680px; }

/* Đầu trang */
.site-header { position: sticky; top: 0; z-index: 10; background: rgba(242, 244, 248, .92); backdrop-filter: blur(10px); border-bottom: 1px solid var(--line); }
.site-header .wrap { display: flex; align-items: center; justify-content: space-between; height: 72px; gap: 16px; }
.brand img { height: 34px; width: auto; }
.nav { display: flex; align-items: center; gap: 28px; font-weight: 600; font-size: 15px; }
.nav a { text-decoration: none; color: var(--navy); }
.nav a:hover { color: var(--gold); }
.lang { display: inline-flex; border: 1px solid var(--line); border-radius: 999px; padding: 3px; background: var(--paper); }
.lang button { border: 0; background: none; font: inherit; font-size: 13px; font-weight: 600; padding: 4px 10px; border-radius: 999px; color: var(--muted); cursor: pointer; }
.lang button[aria-pressed="true"] { background: var(--navy); color: var(--paper); }

/* Nút */
.btn { display: inline-flex; align-items: center; gap: 8px; padding: 14px 24px; border-radius: 999px; font-weight: 600; font-size: 16px; text-decoration: none; transition: transform .15s ease, box-shadow .15s ease; }
.btn:hover { transform: translateY(-1px); }
.btn-primary { background: var(--navy); color: var(--paper); box-shadow: 0 8px 20px rgba(27, 42, 107, .22); }
.btn-ghost { border: 1.5px solid var(--navy); color: var(--navy); }

/* Phần mở đầu */
.hero { padding: 96px 0 104px; position: relative; overflow: hidden; }
.hero .wrap { display: grid; grid-template-columns: 1.25fr .75fr; align-items: center; gap: 48px; }
.hero h1 { font-size: clamp(38px, 5vw, 60px); font-weight: 700; letter-spacing: -.01em; }
.hero h1 .dot { color: var(--gold); }
.hero .lead { font-size: 19px; color: var(--muted); margin: 24px 0 36px; max-width: 600px; }
.hero .actions { display: flex; gap: 14px; flex-wrap: wrap; }
.hero-mark { justify-self: center; width: min(360px, 100%); opacity: .95; }

/* Câu chuyện */
.story { background: var(--paper); }
.story-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; margin-top: 48px; }
.story-item { padding: 28px; border-radius: var(--radius); border: 1px solid var(--line); }
.story-item h3 { font-size: 20px; margin-bottom: 10px; }
.story-item p { color: var(--muted); font-size: 16px; }
.story-item .num { display: inline-flex; width: 36px; height: 36px; border-radius: 50%; align-items: center; justify-content: center; background: var(--mist); color: var(--gold); font-weight: 700; margin-bottom: 18px; }

/* Thương hiệu */
.brands-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; margin-top: 48px; }
.brand-card { background: var(--paper); border-radius: var(--radius); border: 1px solid var(--line); padding: 32px; display: flex; flex-direction: column; gap: 16px; border-top: 4px solid var(--c, var(--navy)); }
.brand-card .logo { height: 44px; width: auto; align-self: flex-start; }
.brand-card h3 { font-size: 15px; letter-spacing: .08em; text-transform: uppercase; color: var(--c, var(--navy)); }
.brand-card p { color: var(--muted); font-size: 16px; flex: 1; }
.chip { align-self: flex-start; font-size: 13px; font-weight: 600; padding: 5px 12px; border-radius: 999px; background: var(--mist); color: var(--muted); }
.brand-card a.more { align-self: flex-start; font-weight: 600; color: var(--c); text-decoration: none; }
.brand-card a.more:hover { text-decoration: underline; }

/* Liên hệ + chân trang (nền tối) */
.contact { background: var(--navy); color: #E6E9F2; }
.contact h2 { color: #FFFFFF; }
.contact .eyebrow { color: var(--gold-light); }
.contact-grid { display: grid; grid-template-columns: 1.2fr .8fr; gap: 48px; align-items: start; }
.contact .mail { display: inline-block; margin-top: 28px; font-size: clamp(22px, 3vw, 30px); font-weight: 700; color: var(--gold-light); text-decoration: none; border-bottom: 2px solid rgba(201, 162, 75, .45); }
.contact .mail:hover { border-bottom-color: var(--gold-light); }
.contact dl { margin: 0; display: grid; gap: 14px; font-size: 16px; }
.contact dt { font-size: 13px; letter-spacing: .1em; text-transform: uppercase; color: #9FA8C9; }
.contact dd { margin: 2px 0 0; color: #FFFFFF; }
.footer { border-top: 1px solid rgba(255, 255, 255, .14); margin-top: 72px; padding-top: 28px; display: flex; justify-content: space-between; align-items: center; gap: 16px; flex-wrap: wrap; font-size: 14px; color: #9FA8C9; }
.footer img { height: 28px; width: auto; }

@media (max-width: 860px) {
  section { padding: 64px 0; }
  .nav a { display: none; }
  .hero { padding: 56px 0 72px; }
  .hero .wrap, .contact-grid { grid-template-columns: 1fr; }
  .hero-mark { width: 180px; justify-self: start; order: -1; }
  .story-grid, .brands-grid { grid-template-columns: 1fr; }
}
@media (max-width: 480px) {
  .wrap { padding: 0 16px; }
  body { font-size: 16px; }
  .brand img { height: 28px; }
}

.sym { font-family: system-ui, -apple-system, "Segoe UI", Arial, sans-serif; }