/* Self-hosted service grotesk: Public Sans 700 (OFL 1.1) - a STATIC 700 instance, not a
   variable face; declared font-weight:700 so no synthetic weight is requested. latin +
   vietnamese subsets. Family name is site-prefixed ("VNPost Sans") so @font-face cannot leak. */
@font-face{font-family:"VNPost Sans";font-style:normal;font-weight:700;font-display:swap;src:url("./font-publicsans-latin.woff2") format("woff2");unicode-range:U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD}
@font-face{font-family:"VNPost Sans";font-style:normal;font-weight:700;font-display:swap;src:url("./font-publicsans-vietnamese.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}
/* ============================================================
   VNPost concept — scoped under [data-site="vnpost"]
   Fingerprint: audience three track · documentary postal photography hero ·
   service grid plain spoken · ledger counter rows · postmark
   band cadence · documentary postal photography · postmark circle
   perforation · reliable brisk
   ============================================================ */

[data-site="vnpost"] {
  --vp-canvas: #faf7f2;
  --vp-surface: #ffffff;
  --vp-text: #232732;
  --vp-muted: #5e6470;
  --vp-red: #b01227;
  --vp-red-deep: #8c0e1f;
  --vp-cream: #f4e9d8;
  --vp-blue: #1d5fa8;
  --vp-blue-deep: #164a80;
  --vp-border: #e5dccb;
  --vp-container: 74rem;
  --vp-t-fast: 130ms;
  --vp-t-base: 220ms;

  font-family: system-ui, "Segoe UI", "Helvetica Neue", Arial, sans-serif;
  background: var(--vp-canvas);
  color: var(--vp-text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  margin: 0;
}

[data-site="vnpost"] *,
[data-site="vnpost"] *::before,
[data-site="vnpost"] *::after { box-sizing: border-box; }

[data-site="vnpost"] h1,
[data-site="vnpost"] h2,
[data-site="vnpost"] h3 {
  font-weight: 800;
  line-height: 1.14;
  letter-spacing: -0.015em;
  margin: 0 0 0.6em;
}

[data-site="vnpost"] p { margin: 0 0 1em; }
[data-site="vnpost"] ul, [data-site="vnpost"] ol { margin: 0; padding: 0; list-style: none; }
[data-site="vnpost"] a { color: var(--vp-red-deep); }
[data-site="vnpost"] svg { max-width: 100%; }

[data-site="vnpost"] :focus-visible {
  outline: 3px solid var(--vp-red);
  outline-offset: 3px;
  border-radius: 6px;
}

[data-site="vnpost"] .visually-hidden {
  position: absolute !important;
  width: 1px; height: 1px;
  margin: -1px; padding: 0;
  overflow: hidden; clip: rect(0 0 0 0);
  white-space: nowrap; border: 0;
}

[data-site="vnpost"] .skip {
  position: absolute;
  left: 1rem; top: -4rem;
  background: var(--vp-red-deep);
  color: #fff;
  font-weight: 700;
  padding: 0.7rem 1.2rem;
  z-index: 100;
  text-decoration: none;
  transition: top var(--vp-t-fast) ease;
}
[data-site="vnpost"] .skip:focus { top: 1rem; }

[data-site="vnpost"] .container {
  width: min(100% - 2.5rem, var(--vp-container));
  margin-inline: auto;
}

/* ---------- concept strip ---------- */
[data-site="vnpost"] .concept-strip {
  background: var(--vp-red-deep);
  color: #f3d9dc;
  font-size: 0.8rem;
  padding: 0.55rem 1rem;
  text-align: center;
}
[data-site="vnpost"] .concept-tag {
  display: inline-block;
  background: var(--vp-cream);
  color: #4a3a1c;
  font-weight: 800;
  font-size: 0.66rem;
  letter-spacing: 0.12em;
  padding: 0.12rem 0.6rem;
  margin-right: 0.5rem;
  vertical-align: 1px;
}

/* ---------- header ---------- */
[data-site="vnpost"] .site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(250, 247, 242, 0.96);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--vp-border);
}
[data-site="vnpost"] .header-inner {
  display: flex;
  align-items: center;
  gap: 1.4rem;
  padding: 0.65rem 0;
}
[data-site="vnpost"] .brand {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  text-decoration: none;
  color: var(--vp-red);
}
[data-site="vnpost"] .brand-text { display: flex; flex-direction: column; line-height: 1.15; }
[data-site="vnpost"] .brand-name { font-size: 1.35rem; font-weight: 900; color: var(--vp-red-deep); }
[data-site="vnpost"] .brand-sub {
  font-size: 0.62rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--vp-blue-deep);
  text-transform: uppercase;
}
[data-site="vnpost"] .main-nav { margin-left: auto; }
[data-site="vnpost"] .main-nav ul { display: flex; gap: 0.15rem; flex-wrap: wrap; }
[data-site="vnpost"] .main-nav a {
  display: block;
  text-decoration: none;
  color: var(--vp-text);
  font-weight: 700;
  font-size: 0.9rem;
  padding: 0.55rem 0.9rem;
  border-radius: 10px;
  transition: background var(--vp-t-fast) ease, color var(--vp-t-fast) ease;
}
[data-site="vnpost"] .main-nav a:hover { background: var(--vp-red); color: #fff; }
[data-site="vnpost"] .header-cta {
  text-decoration: none;
  font-weight: 800;
  font-size: 0.85rem;
  color: #fff;
  background: var(--vp-red);
  padding: 0.6rem 1.05rem;
  border-radius: 999px;
  white-space: nowrap;
  transition: background var(--vp-t-fast) ease;
}
[data-site="vnpost"] .header-cta:hover { background: var(--vp-red-deep); }

[data-site="vnpost"] .nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: 0;
  padding: 0.5rem;
  cursor: pointer;
  margin-left: auto;
}
[data-site="vnpost"] .nav-toggle span {
  width: 24px; height: 3px;
  background: var(--vp-red-deep);
}

/* ---------- hero ---------- */
[data-site="vnpost"] .hero {
  background:
    radial-gradient(48rem 26rem at -10% 0%, var(--vp-cream) 0%, transparent 60%),
    var(--vp-canvas);
  padding: 3.75rem 0;
}
[data-site="vnpost"] .hero-grid {
  display: grid;
  grid-template-columns: 1.02fr 0.98fr;
  gap: 2.75rem;
  align-items: center;
}
[data-site="vnpost"] .eyebrow {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  flex-wrap: wrap;
  color: var(--vp-red-deep);
  font-weight: 800;
  font-size: 0.82rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin: 0 0 1rem;
}
[data-site="vnpost"] .eyebrow-dark { color: #4d5261; }
[data-site="vnpost"] .chip {
  background: var(--vp-red);
  color: #fff;
  padding: 0.18rem 0.7rem;
  font-size: 0.76rem;
  letter-spacing: 0.08em;
}
[data-site="vnpost"] .hero h1 {
  font-size: clamp(2.3rem, 5vw, 3.8rem);
  margin-bottom: 0.35em;
}
[data-site="vnpost"] .hero h1 em { font-style: normal; color: var(--vp-red); }
[data-site="vnpost"] .lede { color: var(--vp-muted); max-width: 40rem; }
[data-site="vnpost"] .hero-actions { display: flex; gap: 0.8rem; flex-wrap: wrap; margin-top: 1.5rem; }

[data-site="vnpost"] .btn {
  display: inline-block;
  text-decoration: none;
  font-weight: 800;
  border-radius: 12px;
  padding: 0.85rem 1.6rem;
  transition: transform var(--vp-t-fast) ease, background var(--vp-t-fast) ease, border-color var(--vp-t-fast) ease;
}
[data-site="vnpost"] .btn-red { background: var(--vp-red); color: #fff; }
[data-site="vnpost"] .btn-red:hover { background: var(--vp-red-deep); transform: translateY(-2px); }
[data-site="vnpost"] .btn-outline { color: var(--vp-red-deep); border: 2px solid var(--vp-red); }
[data-site="vnpost"] .btn-outline:hover { border-color: var(--vp-blue-deep); color: var(--vp-blue-deep); }
[data-site="vnpost"] .btn-lg { padding: 1rem 1.9rem; font-size: 1rem; }


/* ---------- metrics ---------- */
[data-site="vnpost"] .metrics { padding: 2.75rem 0; }
[data-site="vnpost"] .metrics-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
}
[data-site="vnpost"] .metric {
  border-radius: 18px;
  padding: 1.5rem 1.35rem;
}
[data-site="vnpost"] .metric-red { background: var(--vp-red); color: #fff; }
[data-site="vnpost"] .metric-cream { background: var(--vp-cream); color: var(--vp-text); }
[data-site="vnpost"] .metric-value {
  display: block;
  font-size: 2.3rem;
  font-weight: 900;
  line-height: 1;
  margin-bottom: 0.4rem;
  letter-spacing: -0.02em;
}
[data-site="vnpost"] .metric-label { font-size: 0.86rem; }

/* ---------- sections ---------- */
[data-site="vnpost"] .section { padding: 4rem 0; }
[data-site="vnpost"] .section-head { max-width: 44rem; margin-bottom: 2.25rem; }
[data-site="vnpost"] .section-head h2 { font-size: clamp(1.75rem, 3.3vw, 2.4rem); }
[data-site="vnpost"] .section-note { color: var(--vp-muted); }
[data-site="vnpost"] .postmark-sm { color: var(--vp-red); display: inline-block; margin-bottom: 0.6rem; }

/* counters */
[data-site="vnpost"] .track-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.1rem;
}
[data-site="vnpost"] .counter {
  background: var(--vp-surface);
  border: 1.5px solid var(--vp-border);
  border-top: 8px solid var(--vp-red);
  border-radius: 16px;
  padding: 1.7rem 1.6rem;
}
[data-site="vnpost"] .counter-blue { border-top-color: var(--vp-blue); }
[data-site="vnpost"] .counter-no {
  display: inline-block;
  font-size: 0.74rem;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--vp-red-deep);
  border: 1.5px dashed var(--vp-red);
  border-radius: 999px;
  padding: 0.2rem 0.75rem;
  margin-bottom: 0.9rem;
}
[data-site="vnpost"] .counter-blue .counter-no { color: var(--vp-blue-deep); border-color: var(--vp-blue); }
[data-site="vnpost"] .counter h3 { font-size: 1.25rem; margin-bottom: 0.55em; }
[data-site="vnpost"] .counter ul { display: grid; gap: 0.5rem; }
[data-site="vnpost"] .counter li {
  position: relative;
  padding-left: 1.15rem;
  color: var(--vp-muted);
  font-size: 0.94rem;
}
[data-site="vnpost"] .counter li::before {
  content: "";
  position: absolute;
  left: 0; top: 0.55em;
  width: 0.5rem; height: 0.5rem;
  border: 2px solid var(--vp-red);
  border-radius: 50%;
}
[data-site="vnpost"] .counter-blue li::before { border-color: var(--vp-blue); }

/* ecosystem */
[data-site="vnpost"] .eco { background: var(--vp-cream); }
[data-site="vnpost"] .stamp-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.1rem;
}
[data-site="vnpost"] .stamp-card {
  background: var(--vp-surface);
  border: 2px dashed var(--vp-border);
  border-radius: 4px;
  padding: 1.7rem 1.6rem;
  display: grid;
  gap: 0.3rem;
}
[data-site="vnpost"] .stamp-card strong { font-size: 1.25rem; font-weight: 900; color: var(--vp-red-deep); }
[data-site="vnpost"] .stamp-card span { color: var(--vp-muted); font-size: 0.92rem; }

/* history */
[data-site="vnpost"] .hist-steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  margin-bottom: 2rem;
}
[data-site="vnpost"] .hist-steps li {
  background: var(--vp-surface);
  border: 1.5px solid var(--vp-border);
  border-left: 6px solid var(--vp-red);
  border-radius: 14px;
  padding: 1.4rem 1.35rem;
}
[data-site="vnpost"] .h-year {
  display: block;
  font-size: 1.6rem;
  font-weight: 900;
  color: var(--vp-red);
  line-height: 1.1;
}
[data-site="vnpost"] .hist-steps p { margin: 0.4em 0 0; color: var(--vp-muted); font-size: 0.92rem; }

[data-site="vnpost"] .fact-card {
  background: var(--vp-surface);
  border: 1.5px solid var(--vp-border);
  padding: 1.5rem 1.6rem;
  display: grid;
  gap: 0.9rem;
  margin: 0;
  max-width: 46rem;
  border-radius: 14px;
}
[data-site="vnpost"] .fact-card div {
  display: grid;
  grid-template-columns: 8rem 1fr;
  gap: 0.75rem;
  padding-bottom: 0.9rem;
  border-bottom: 1px dashed var(--vp-border);
}
[data-site="vnpost"] .fact-card div:last-child { border-bottom: 0; padding-bottom: 0; }
[data-site="vnpost"] .fact-card dt {
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--vp-muted);
}
[data-site="vnpost"] .fact-card dd { margin: 0; font-weight: 600; font-size: 0.95rem; }

/* cta */
[data-site="vnpost"] .cta { padding: 4rem 0; text-align: center; }
[data-site="vnpost"] .cta-inner h2 { font-size: clamp(1.75rem, 3.3vw, 2.4rem); }

/* footer */
[data-site="vnpost"] .site-footer {
  background: #26201a;
  color: #d9c9b5;
  padding: 3.25rem 0 2rem;
}
[data-site="vnpost"] .footer-brand { display: flex; align-items: baseline; gap: 0.9rem; margin-bottom: 1.4rem; flex-wrap: wrap; }
[data-site="vnpost"] .f-name { color: #fff; font-size: 1.4rem; font-weight: 900; }
[data-site="vnpost"] .f-sub { font-size: 0.8rem; color: #e0909d; }
[data-site="vnpost"] .footer-nav ul { display: flex; flex-wrap: wrap; gap: 0.5rem 1.5rem; margin-bottom: 1.6rem; }
[data-site="vnpost"] .footer-nav a { color: #efe5d8; text-decoration: none; font-size: 0.9rem; font-weight: 600; }
[data-site="vnpost"] .footer-nav a:hover { color: #e0909d; }
[data-site="vnpost"] .disclaimer {
  border-top: 1px solid rgba(255, 255, 255, 0.14);
  padding-top: 1.4rem;
  font-size: 0.82rem;
  color: #b5a48e;
  max-width: 60rem;
}
[data-site="vnpost"] .colophon { font-size: 0.75rem; color: #97866f; }

/* ---------- responsive ---------- */
@media (max-width: 1020px) {
  [data-site="vnpost"] .hero-grid { grid-template-columns: 1fr; }
  [data-site="vnpost"] .metrics-grid { grid-template-columns: repeat(2, 1fr); }
  [data-site="vnpost"] .track-grid,
  [data-site="vnpost"] .stamp-row { grid-template-columns: 1fr; }
  [data-site="vnpost"] .hist-steps { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 760px) {
  [data-site="vnpost"] .nav-toggle { display: flex; }
  [data-site="vnpost"] .main-nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0; right: 0;
    background: var(--vp-canvas);
    border-bottom: 1px solid var(--vp-border);
    padding: 0.75rem 1.25rem 1.25rem;
  }
  [data-site="vnpost"] .main-nav.is-open { display: block; }
  [data-site="vnpost"] .main-nav ul { flex-direction: column; gap: 0.25rem; }
  [data-site="vnpost"] .header-cta { display: none; }
  [data-site="vnpost"] .hist-steps { grid-template-columns: 1fr; }
}

@media (max-width: 520px) {
  [data-site="vnpost"] .metrics-grid { grid-template-columns: 1fr; }
  [data-site="vnpost"] .section { padding: 3rem 0; }
  [data-site="vnpost"] .fact-card div { grid-template-columns: 1fr; }
}

/* ---------- motion ---------- */
@media (prefers-reduced-motion: reduce) {
  [data-site="vnpost"] * {
    animation: none !important;
    transition: none !important;
  }
}

/* ---------- polish: motion layer (2026+) ---------- */
[data-site="vnpost"] .hero-copy > *,
[data-site="vnpost"] .hero-post {
  animation: vp-stamp 0.65s cubic-bezier(0.2, 0.7, 0.3, 1) both;
}
[data-site="vnpost"] .hero-copy > *:nth-child(2) { animation-delay: 0.09s; }
[data-site="vnpost"] .hero-copy > *:nth-child(3) { animation-delay: 0.18s; }
[data-site="vnpost"] .hero-copy > *:nth-child(4) { animation-delay: 0.27s; }
[data-site="vnpost"] .hero-copy > *:nth-child(5) { animation-delay: 0.36s; }
[data-site="vnpost"] .hero-post { animation-delay: 0.2s; }
@keyframes vp-stamp {
  from { transform: translateY(20px) scale(0.99); }
}
[data-site="vnpost"] .counter:hover .counter-no {
  animation: vp-thump 0.45s ease;
}
@keyframes vp-thump {
  40% { transform: scale(1.12); }
}
@supports (animation-timeline: view()) {
  @media (prefers-reduced-motion: no-preference) {
    [data-site="vnpost"] .section-head,
    [data-site="vnpost"] .metrics-grid,
    [data-site="vnpost"] .track-grid,
    [data-site="vnpost"] .stamp-row,
    [data-site="vnpost"] .hist-steps,
    [data-site="vnpost"] .fact-card {
      animation: vp-rise linear both;
      animation-timeline: view();
      animation-range: entry 0% cover 26%;
    }
    @keyframes vp-rise {
      from { transform: translateY(30px); }
    }
  }
}

[data-site="vnpost"] h1,[data-site="vnpost"] h2,[data-site="vnpost"] h3 { font-family: "VNPost Sans", system-ui, "Segoe UI", Arial, sans-serif; }
[data-site="vnpost"] .hero-post { position: relative; margin: 0; aspect-ratio: 4 / 3.4; border-radius: 18px; overflow: hidden; background: #2a2f38; box-shadow: 0 26px 52px -36px rgba(35, 39, 50, .7); animation-delay: .2s; }
[data-site="vnpost"] .hero-post img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; filter: saturate(.96) contrast(1.05); }
[data-site="vnpost"] .hero-post figcaption { position: absolute; left: 0; right: 0; bottom: 0; z-index: 2; padding: 40px 16px 14px; font-size: .7rem; line-height: 1.45; color: #fdf7ec; background: linear-gradient(transparent 0%, rgba(20, 22, 28, .72) 26%, rgba(20, 22, 28, .95) 58%); text-shadow: 0 1px 2px rgba(0,0,0,.5); }
[data-site="vnpost"] .from-post { padding-block: 3.5rem 1rem; }
[data-site="vnpost"] .from-head { max-width: 44rem; margin-bottom: 1.5rem; }
[data-site="vnpost"] .post-plates { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: 1.1fr .9fr; gap: 1.15rem; }
[data-site="vnpost"] .post-plates figure { position: relative; margin: 0; aspect-ratio: 4 / 3; border-radius: 14px; overflow: hidden; background: #2a2f38; }
[data-site="vnpost"] .post-plates img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; filter: saturate(.96) contrast(1.05); }
[data-site="vnpost"] .post-plates figcaption { position: absolute; left: 0; right: 0; bottom: 0; z-index: 2; display: flex; flex-direction: column; gap: 3px; padding: 34px 16px 13px; color: #fff; background: linear-gradient(transparent, rgba(24, 27, 34, .92)); }
[data-site="vnpost"] .post-plates figcaption strong { font-family: "VNPost Sans", system-ui, sans-serif; font-size: 1.05rem; font-weight: 700; }
[data-site="vnpost"] .credit { font-size: .64rem; line-height: 1.4; color: #e3dccc; }
@media (max-width: 900px) { [data-site="vnpost"] .post-plates { grid-template-columns: 1fr; } [data-site="vnpost"] .post-plates figure { aspect-ratio: 16 / 10; } }

/* the shipped VNPost Sans file is a static 700 instance, so request 700 rather than letting the
   browser synthesise a heavier weight for the display voice */
[data-site="vnpost"] h1,
[data-site="vnpost"] h2,
[data-site="vnpost"] h3 { font-family: "VNPost Sans", system-ui, "Segoe UI", Arial, sans-serif; font-weight: 700; }