/* ============================================================
   Bảo Việt concept — scoped under [data-site="baoviet"]
   Fingerprint: institutional-dossier-rail · monument-year-roofline ·
   heritage-serif-institutional · rafter-pillar-roof ·
   year-spine-ledger · documentary-heritage-plate ·
   roofline-rafter · measured-institutional-rise
   Imagery: real, lawfully-licensed Hanoi heritage photography
   (Wikimedia Commons) — hero portico + four credited documentary
   plates; WebP, explicit width/height, provenance in sources.yaml.
   Palette: navy #0B2A4A · blue #0E4C92 · bone #F4F1EA · brass #B8892B
   ============================================================ */

[data-site="baoviet"] {
  --bv-navy: #0b2a4a;
  --bv-navy-deep: #071b30;
  --bv-blue: #0e4c92;
  --bv-blue-soft: #e7eef7;
  --bv-bone: #f4f1ea;
  --bv-paper: #ffffff;
  --bv-brass: #b8892b;
  --bv-brass-soft: #efe3c8;
  --bv-ink: #12233a;
  --bv-muted: #5b6b7e;
  --bv-line: #d8d2c4;
  --bv-container: 76rem;
  --bv-fast: 150ms;
  --bv-base: 280ms;
  --bv-ease: cubic-bezier(0.22, 0.68, 0.24, 1);

  --bv-serif: "Iowan Old Style", "Palatino Linotype", Palatino, "Book Antiqua", Georgia, "Times New Roman", serif;
  --bv-sans: "Helvetica Neue", "Segoe UI", system-ui, Arial, sans-serif;
  --bv-mono: ui-monospace, "SF Mono", SFMono-Regular, Menlo, Consolas, monospace;

  margin: 0;
  background: var(--bv-bone);
  color: var(--bv-ink);
  font-family: var(--bv-sans);
  font-size: clamp(16px, 1.02vw, 17.5px);
  line-height: 1.62;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

[data-site="baoviet"] h1,
[data-site="baoviet"] h2,
[data-site="baoviet"] h3 {
  font-family: var(--bv-serif);
  font-weight: 700;
  line-height: 1.06;
  letter-spacing: -0.01em;
  color: var(--bv-navy);
  margin: 0 0 0.5em;
}
[data-site="baoviet"] h1 { font-size: clamp(2.5rem, 5.8vw, 4.4rem); }
[data-site="baoviet"] h2 { font-size: clamp(1.85rem, 3.7vw, 2.8rem); }
[data-site="baoviet"] h3 { font-size: 1.18rem; }
[data-site="baoviet"] p { margin: 0 0 1em; }
[data-site="baoviet"] ul,
[data-site="baoviet"] ol { margin: 0; padding: 0; list-style: none; }
[data-site="baoviet"] a { color: var(--bv-blue); }
[data-site="baoviet"] img { max-width: 100%; height: auto; }
[data-site="baoviet"] address { font-style: normal; }

[data-site="baoviet"] :focus-visible {
  outline: 3px solid var(--bv-blue);
  outline-offset: 3px;
  border-radius: 2px;
}

[data-site="baoviet"] .skip {
  position: absolute;
  left: 1rem; top: -5rem;
  z-index: 100;
  background: var(--bv-navy);
  color: #fff;
  font-weight: 700;
  padding: 0.7rem 1.2rem;
  text-decoration: none;
  transition: top var(--bv-fast) ease;
}
[data-site="baoviet"] .skip:focus { top: 0.5rem; }

/* ---------- concept strip ---------- */
[data-site="baoviet"] .concept-strip {
  background: var(--bv-navy-deep);
  color: #c8d3e0;
  font-size: 0.78rem;
  padding: 0.55rem 1.1rem;
  text-align: center;
}
[data-site="baoviet"] .concept-tag {
  display: inline-block;
  background: var(--bv-brass);
  color: var(--bv-navy-deep);
  font-weight: 800;
  font-size: 0.64rem;
  letter-spacing: 0.14em;
  padding: 0.1rem 0.55rem;
  margin-right: 0.5rem;
  vertical-align: 1px;
}

/* ---------- header ---------- */
[data-site="baoviet"] .site-header {
  position: sticky;
  top: 0;
  z-index: 80;
  background: var(--bv-navy);
  border-bottom: 3px solid var(--bv-brass);
}
[data-site="baoviet"] .header-inner {
  width: min(100% - 2.5rem, var(--bv-container));
  margin-inline: auto;
  display: flex;
  align-items: center;
  gap: 1.25rem;
  padding: 0.65rem 0;
}
[data-site="baoviet"] .brand { display: flex; align-items: center; gap: 0.65rem; text-decoration: none; color: #fff; }
[data-site="baoviet"] .brand-mark {
  display: grid;
  place-items: center;
  width: 44px; height: 44px;
  color: var(--bv-brass);
  border: 1px solid rgba(184, 137, 43, 0.6);
}
[data-site="baoviet"] .brand-mark svg { width: 30px; height: 30px; }
[data-site="baoviet"] .brand-text { display: flex; flex-direction: column; line-height: 1.12; }
[data-site="baoviet"] .brand-name { font-family: var(--bv-serif); font-size: 1.3rem; font-weight: 700; }
[data-site="baoviet"] .brand-sub {
  font-size: 0.6rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: #a9bcd0;
}
[data-site="baoviet"] .main-nav { margin-left: auto; }
[data-site="baoviet"] .main-nav ul { display: flex; gap: 0.1rem; flex-wrap: wrap; }
[data-site="baoviet"] .main-nav a {
  display: block;
  text-decoration: none;
  color: #e6edf4;
  font-weight: 600;
  font-size: 0.85rem;
  padding: 0.5rem 0.8rem;
  border-bottom: 2px solid transparent;
  transition: border-color var(--bv-fast) ease, color var(--bv-fast) ease;
}
[data-site="baoviet"] .main-nav a:hover { color: #fff; border-color: var(--bv-brass); }
[data-site="baoviet"] .header-cta {
  text-decoration: none;
  white-space: nowrap;
  font-weight: 700;
  font-size: 0.84rem;
  color: var(--bv-navy-deep);
  background: var(--bv-brass);
  padding: 0.6rem 1rem;
  transition: background var(--bv-fast) ease;
}
[data-site="baoviet"] .header-cta:hover { background: #d3a544; }

[data-site="baoviet"] .nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: 0;
  padding: 0.5rem;
  cursor: pointer;
  margin-left: auto;
}
[data-site="baoviet"] .nav-toggle span { width: 24px; height: 3px; background: #fff; }

/* ---------- shared ---------- */
[data-site="baoviet"] .container {
  width: min(100% - 2.5rem, var(--bv-container));
  margin-inline: auto;
}
[data-site="baoviet"] .section { padding: clamp(3.4rem, 7vw, 5.8rem) 0; }
[data-site="baoviet"] .section-head { max-width: 50rem; margin-bottom: clamp(2rem, 4vw, 3rem); }
[data-site="baoviet"] .section-note { color: var(--bv-muted); margin: 0; }
[data-site="baoviet"] .eyebrow {
  font-family: var(--bv-mono);
  font-weight: 700;
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--bv-blue);
  margin: 0 0 1rem;
}
[data-site="baoviet"] .eyebrow-light { color: var(--bv-brass-soft); }
[data-site="baoviet"] .mono { font-family: var(--bv-mono); }

/* ---------- buttons ---------- */
[data-site="baoviet"] .btn {
  display: inline-block;
  text-decoration: none;
  font-weight: 700;
  font-size: 0.92rem;
  padding: 0.85rem 1.5rem;
  border: 1.5px solid transparent;
  transition: background var(--bv-fast) ease, color var(--bv-fast) ease,
    border-color var(--bv-fast) ease, transform var(--bv-fast) var(--bv-ease);
}
[data-site="baoviet"] .btn-primary { background: var(--bv-blue); color: #fff; }
[data-site="baoviet"] .btn-primary:hover { background: var(--bv-navy); transform: translateY(-2px); }
[data-site="baoviet"] .btn-ghost { color: var(--bv-navy); border-color: var(--bv-navy); background: transparent; }
[data-site="baoviet"] .btn-ghost:hover { background: var(--bv-navy); color: #fff; }
[data-site="baoviet"] .btn-lg { padding: 1rem 2rem; font-size: 1rem; }

/* ---------- hero ---------- */
[data-site="baoviet"] .hero {
  background: linear-gradient(180deg, var(--bv-bone), #fff);
  padding: clamp(2.8rem, 6vw, 5.2rem) 0 clamp(2.6rem, 5vw, 4.4rem);
  border-bottom: 1px solid var(--bv-line);
}
[data-site="baoviet"] .hero-grid {
  display: grid;
  grid-template-columns: 1.02fr 0.98fr;
  gap: clamp(1.6rem, 4vw, 3.4rem);
  align-items: center;
}
[data-site="baoviet"] .hero h1 em { font-style: italic; color: var(--bv-blue); }
[data-site="baoviet"] .hero-sub {
  font-family: var(--bv-serif);
  font-size: clamp(1.05rem, 1.7vw, 1.25rem);
  font-weight: 600;
  color: var(--bv-navy);
  margin: 0 0 0.7rem;
}
[data-site="baoviet"] .lede { color: var(--bv-muted); max-width: 40rem; }
[data-site="baoviet"] .hero-actions { display: flex; flex-wrap: wrap; gap: 0.7rem; margin-top: 1.5rem; }
[data-site="baoviet"] .hero-marks {
  display: flex;
  gap: 2.4rem;
  margin: 2rem 0 0;
  padding-top: 1.3rem;
  border-top: 1px solid var(--bv-line);
}
[data-site="baoviet"] .hero-marks dt {
  font-family: var(--bv-serif);
  font-size: 1.7rem;
  font-weight: 700;
  color: var(--bv-navy);
  line-height: 1;
}
[data-site="baoviet"] .hero-marks dd { margin: 0.3rem 0 0; font-size: 0.82rem; color: var(--bv-muted); }

[data-site="baoviet"] .monument { margin: 0; }
[data-site="baoviet"] .monument-panel {
  position: relative;
  background: var(--bv-navy);
  overflow: hidden;
  border-bottom: 4px solid var(--bv-brass);
}
[data-site="baoviet"] .monument-photo {
  display: block;
  width: 100%;
  height: 100%;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  object-position: 50% 44%;
  filter: saturate(1.02) contrast(1.03);
}
[data-site="baoviet"] .monument-panel::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(
    180deg,
    rgba(7, 27, 48, 0.46) 0%,
    rgba(7, 27, 48, 0.04) 38%,
    rgba(7, 27, 48, 0.62) 100%
  );
  pointer-events: none;
}
[data-site="baoviet"] .monument-cornice {
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  height: 6px;
  background: var(--bv-brass);
}
[data-site="baoviet"] .monument-year {
  position: absolute;
  top: 0.2rem;
  right: 0.9rem;
  z-index: 2;
  font-family: var(--bv-serif);
  font-size: clamp(3.4rem, 8vw, 5.4rem);
  font-weight: 700;
  color: rgba(255, 255, 255, 0.3);
  text-shadow: 0 2px 16px rgba(7, 27, 48, 0.7);
  line-height: 1;
  pointer-events: none;
}
[data-site="baoviet"] .monument figcaption {
  display: flex;
  flex-wrap: wrap;
  gap: 0.3rem 1rem;
  margin-top: 0.9rem;
  font-size: 0.76rem;
  color: var(--bv-muted);
}

/* ---------- documentary plates (real photography) ---------- */
[data-site="baoviet"] .plate { margin: 0 0 1.6rem; }
[data-site="baoviet"] .plate img {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  border-bottom: 3px solid var(--bv-brass);
}
[data-site="baoviet"] .plate-columns img { aspect-ratio: 2 / 1; object-position: 50% 92%; }
[data-site="baoviet"] .plate-compact { margin: 1.6rem 0 0; }
[data-site="baoviet"] .plate-compact img { aspect-ratio: 5 / 4; object-position: 50% 42%; }
[data-site="baoviet"] .plate figcaption {
  margin-top: 0.55rem;
  font-size: 0.73rem;
  line-height: 1.5;
  color: var(--bv-muted);
}
[data-site="baoviet"] .plate:last-child { margin-bottom: 0; }

/* ---------- pillars / rafters ---------- */
[data-site="baoviet"] .rafters { border-top: 2px solid var(--bv-navy); }
[data-site="baoviet"] .rafter-tools {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.9rem;
  margin-bottom: 1.2rem;
}
[data-site="baoviet"] .rafter-filters { display: flex; flex-wrap: wrap; gap: 0.4rem; }
[data-site="baoviet"] .rfilter {
  font-family: var(--bv-sans);
  font-weight: 700;
  font-size: 0.8rem;
  color: var(--bv-navy);
  background: transparent;
  border: 1.5px solid var(--bv-line);
  padding: 0.42rem 0.9rem;
  cursor: pointer;
  transition: background var(--bv-fast) ease, color var(--bv-fast) ease, border-color var(--bv-fast) ease;
}
[data-site="baoviet"] .rfilter:hover { border-color: var(--bv-navy); }
[data-site="baoviet"] .rfilter.is-active { background: var(--bv-navy); border-color: var(--bv-navy); color: #fff; }
[data-site="baoviet"] .rafter-count {
  margin: 0;
  font-family: var(--bv-mono);
  font-size: 0.76rem;
  letter-spacing: 0.08em;
  color: var(--bv-muted);
}
[data-site="baoviet"] .rafter-empty {
  margin: 1.2rem 0 0;
  padding: 1rem 1.2rem;
  border: 1px dashed var(--bv-line);
  background: var(--bv-blue-soft);
  color: var(--bv-navy);
  font-weight: 600;
}
[data-site="baoviet"] .rafter-empty[hidden] { display: none; }
[data-site="baoviet"] .rafter { border-bottom: 1px solid var(--bv-line); transition: background var(--bv-base) var(--bv-ease); }
[data-site="baoviet"] .rafter > summary {
  display: grid;
  grid-template-columns: 3.4rem minmax(12rem, 1fr) minmax(0, 1.7fr) 1.6rem;
  gap: 1rem;
  align-items: baseline;
  padding: 1.15rem 0.4rem;
  cursor: pointer;
  list-style: none;
  transition: background var(--bv-fast) ease, padding-left var(--bv-fast) ease;
}
[data-site="baoviet"] .rafter > summary::-webkit-details-marker { display: none; }
[data-site="baoviet"] .rafter > summary::marker { content: ""; }
[data-site="baoviet"] .rafter > summary:hover { background: var(--bv-blue-soft); padding-left: 0.9rem; }
[data-site="baoviet"] .rafter[open] > summary { background: var(--bv-blue-soft); }
[data-site="baoviet"] .rafter-no {
  font-family: var(--bv-mono);
  font-weight: 700;
  font-size: 0.84rem;
  color: #8a6417;
}
[data-site="baoviet"] .rafter-name { display: flex; flex-direction: column; gap: 0.15rem; }
[data-site="baoviet"] .rafter-name strong {
  font-family: var(--bv-serif);
  font-size: 1.12rem;
  font-weight: 700;
  color: var(--bv-navy);
}
[data-site="baoviet"] .rafter-name span {
  font-size: 0.66rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--bv-muted);
}
[data-site="baoviet"] .rafter-line { color: var(--bv-muted); font-size: 0.92rem; }
[data-site="baoviet"] .rafter-mark {
  text-align: right;
  color: var(--bv-blue);
  font-weight: 800;
  font-size: 1.15rem;
  transition: transform var(--bv-fast) ease;
}
[data-site="baoviet"] .rafter[open] .rafter-mark { transform: rotate(45deg); }
[data-site="baoviet"] .rafter-body { padding: 0 0.4rem 1.5rem 4.8rem; max-width: 58rem; }
[data-site="baoviet"] .rafter-body p { margin: 0 0 0.8rem; color: var(--bv-ink); font-size: 0.94rem; }
[data-site="baoviet"] .rafter-link {
  display: inline-block;
  font-weight: 700;
  font-size: 0.88rem;
  color: var(--bv-blue);
  text-decoration: none;
  border-bottom: 1.5px solid var(--bv-blue);
  padding-bottom: 1px;
}
[data-site="baoviet"] .rafter-link:hover { color: var(--bv-brass); border-color: var(--bv-brass); }

/* ---------- chronicle / spine ---------- */
[data-site="baoviet"] .chronicle { background: var(--bv-navy); color: #dbe4ee; }
[data-site="baoviet"] .chronicle .section-head h2 { color: #fff; }
[data-site="baoviet"] .chronicle .section-note { color: #b3c3d4; }
[data-site="baoviet"] .chronicle .plate figcaption { color: #b3c3d4; }
[data-site="baoviet"] .chronicle-grid { display: grid; grid-template-columns: 0.8fr 1.2fr; gap: clamp(1.6rem, 4vw, 3.6rem); align-items: start; }
[data-site="baoviet"] .chronicle-head { position: sticky; top: 6.5rem; margin-bottom: 0; }
[data-site="baoviet"] .spine { position: relative; }
[data-site="baoviet"] .spine::before {
  content: "";
  position: absolute;
  left: 5.6rem; top: 0.5rem; bottom: 1.2rem;
  width: 2px;
  background: linear-gradient(180deg, var(--bv-brass), rgba(184, 137, 43, 0.2));
}
[data-site="baoviet"] .spine li { padding-bottom: 0.7rem; position: relative; }
[data-site="baoviet"] .spine li:last-child { padding-bottom: 0; }
[data-site="baoviet"] .spine-item > summary {
  position: relative;
  display: grid;
  grid-template-columns: 5.6rem minmax(0, 1fr) 1.4rem;
  gap: 0.3rem 1.4rem;
  align-items: baseline;
  padding: 0.55rem 0.3rem;
  cursor: pointer;
  list-style: none;
  transition: background var(--bv-fast) ease;
}
[data-site="baoviet"] .spine-item > summary::-webkit-details-marker { display: none; }
[data-site="baoviet"] .spine-item > summary::marker { content: ""; }
[data-site="baoviet"] .spine-item > summary:hover { background: rgba(255, 255, 255, 0.06); }
[data-site="baoviet"] .spine-item > summary::before {
  content: "";
  position: absolute;
  left: 5.6rem; top: 0.85rem;
  width: 13px; height: 13px;
  margin-left: -6.5px;
  border-radius: 50%;
  background: var(--bv-navy);
  border: 3px solid var(--bv-brass);
}
[data-site="baoviet"] .spine-year {
  font-family: var(--bv-serif);
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--bv-brass);
  text-align: right;
}
[data-site="baoviet"] .spine-summary { color: #cdd9e6; font-size: 0.95rem; }
[data-site="baoviet"] .spine-mark {
  color: var(--bv-brass);
  font-weight: 800;
  font-size: 1.1rem;
  text-align: right;
  transition: transform var(--bv-fast) ease;
}
[data-site="baoviet"] .spine-item[open] .spine-mark { transform: rotate(45deg); }
[data-site="baoviet"] .spine-body { position: relative; margin-left: 7rem; padding: 0.3rem 0 0.7rem; }
[data-site="baoviet"] .spine-body p { margin: 0 0 0.5rem; color: #e7eef6; }
[data-site="baoviet"] .spine-tag {
  font-family: var(--bv-mono);
  font-size: 0.64rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: #b3c3d4;
  border: 1px solid rgba(255, 255, 255, 0.24);
  padding: 0.15rem 0.55rem;
}
[data-site="baoviet"] .spine li.is-now .spine-item > summary::before { background: var(--bv-brass); }
[data-site="baoviet"] .spine li.is-now .spine-tag { background: var(--bv-brass); color: var(--bv-navy-deep); border-color: var(--bv-brass); }

/* ---------- numbers ledger ---------- */
[data-site="baoviet"] .numbers { background: var(--bv-brass-soft); }
[data-site="baoviet"] .numbers .eyebrow-light { color: #6b4c12; }
[data-site="baoviet"] .numbers-grid {
  display: grid;
  grid-template-columns: 1.5fr 0.5fr;
  gap: clamp(1.4rem, 3vw, 2.8rem);
  align-items: center;
}
[data-site="baoviet"] .plaque { position: relative; margin: 0; overflow: hidden; border-bottom: 4px solid var(--bv-brass); }
[data-site="baoviet"] .plaque img {
  display: block;
  width: 100%;
  aspect-ratio: 4 / 5;
  object-fit: cover;
  object-position: 50% 55%;
}
[data-site="baoviet"] .plaque-mark {
  position: absolute;
  inset: auto 0 0 0;
  z-index: 2;
  padding: 2.4rem 1.1rem 1rem;
  text-align: center;
  background: linear-gradient(180deg, rgba(7, 27, 48, 0) 0%, rgba(7, 27, 48, 0.86) 62%, rgba(7, 27, 48, 0.96) 100%);
}
[data-site="baoviet"] .plaque-num {
  display: block;
  font-family: var(--bv-serif);
  font-size: clamp(2.8rem, 6vw, 3.6rem);
  font-weight: 700;
  line-height: 1;
  color: var(--bv-brass);
}
[data-site="baoviet"] .plaque-unit {
  display: block;
  margin-top: 0.15rem;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.42em;
  text-transform: uppercase;
  color: #f0e6cf;
}
[data-site="baoviet"] .plaque-range {
  display: block;
  margin-top: 0.35rem;
  font-family: var(--bv-mono);
  font-size: 0.68rem;
  letter-spacing: 0.16em;
  color: #93a6ba;
}
[data-site="baoviet"] .plaque figcaption {
  position: absolute;
  inset: auto 0 auto 0;
  top: 0;
  z-index: 2;
  padding: 0.5rem 0.8rem;
  font-size: 0.66rem;
  line-height: 1.4;
  color: #eaf0f6;
  background: linear-gradient(180deg, rgba(7, 27, 48, 0.9) 0%, rgba(7, 27, 48, 0) 100%);
}
[data-site="baoviet"] .ledger { border-top: 2px solid var(--bv-navy); max-width: 60rem; }
[data-site="baoviet"] .ledger-row {
  display: flex;
  align-items: baseline;
  gap: 1.4rem;
  padding: 1.15rem 0.2rem;
  border-bottom: 1px solid rgba(18, 35, 58, 0.18);
}
[data-site="baoviet"] .ledger-row dt {
  font-family: var(--bv-serif);
  font-size: clamp(2rem, 4.6vw, 3rem);
  font-weight: 700;
  line-height: 1;
  color: var(--bv-navy);
  min-width: 6.5rem;
}
[data-site="baoviet"] .ledger-row dd { margin: 0; font-size: 1rem; color: var(--bv-ink); }
[data-site="baoviet"] .led-unit {
  font-family: var(--bv-sans);
  font-size: 0.9rem;
  font-weight: 600;
  margin-left: 0.35rem;
  color: var(--bv-blue);
}
[data-site="baoviet"] .numbers-note { margin: 1.5rem 0 0; font-size: 0.82rem; color: #6b5a3c; max-width: 52rem; }

/* ---------- needs doors (directory, not cards) ---------- */
[data-site="baoviet"] .doors { border-top: 2px solid var(--bv-navy); }
[data-site="baoviet"] .door {
  display: grid;
  grid-template-columns: 3.4rem minmax(10rem, 1fr) minmax(0, 1.3fr) auto;
  gap: 0.4rem 1.4rem;
  align-items: baseline;
  padding: 1.4rem 0.4rem;
  border-bottom: 1px solid var(--bv-line);
  text-decoration: none;
  transition: background var(--bv-fast) ease, padding-left var(--bv-fast) ease;
}
[data-site="baoviet"] .door:hover { background: var(--bv-blue-soft); padding-left: 0.9rem; }
[data-site="baoviet"] .door-no { font-family: var(--bv-mono); font-size: 0.84rem; color: #8a6417; letter-spacing: 0.1em; }
[data-site="baoviet"] .door strong { font-family: var(--bv-serif); font-size: 1.4rem; color: var(--bv-navy); }
[data-site="baoviet"] .door p { margin: 0; color: var(--bv-muted); font-size: 0.92rem; align-self: center; }
[data-site="baoviet"] .door-go { font-weight: 700; font-size: 0.86rem; color: var(--bv-blue); white-space: nowrap; }

/* ---------- ecosystem strip (not cards) ---------- */
[data-site="baoviet"] .eco-list {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: 2px solid var(--bv-navy);
}
[data-site="baoviet"] .eco-list li {
  padding: 1.4rem 1.2rem 1.4rem 0;
  border-right: 1px solid var(--bv-line);
}
[data-site="baoviet"] .eco-list li:last-child { border-right: 0; }
[data-site="baoviet"] .eco-list strong { display: block; font-family: var(--bv-serif); font-size: 1.15rem; color: var(--bv-navy); margin-bottom: 0.3rem; }
[data-site="baoviet"] .eco-list span { font-size: 0.85rem; color: var(--bv-muted); }

/* ---------- cta ---------- */
[data-site="baoviet"] .cta { background: var(--bv-navy-deep); color: #dbe4ee; padding: clamp(3.2rem, 7vw, 5.4rem) 0; text-align: center; }
[data-site="baoviet"] .cta h2 { color: #fff; }
[data-site="baoviet"] .cta-actions { display: flex; flex-wrap: wrap; gap: 0.8rem; justify-content: center; margin-bottom: 1.2rem; }
[data-site="baoviet"] .cta .btn-ghost { color: #fff; border-color: rgba(255, 255, 255, 0.5); }
[data-site="baoviet"] .cta .btn-ghost:hover { background: #fff; color: var(--bv-navy-deep); }
[data-site="baoviet"] .fine { font-size: 0.8rem; color: #a9bcd0; margin: 0; }

/* ---------- footer ---------- */
[data-site="baoviet"] .site-footer { background: var(--bv-navy); color: #b3c3d4; padding: 3rem 0 2.2rem; }
[data-site="baoviet"] .footer-brand { display: flex; align-items: baseline; gap: 0.9rem; flex-wrap: wrap; margin-bottom: 1.3rem; }
[data-site="baoviet"] .f-name { font-family: var(--bv-serif); color: #fff; font-size: 1.35rem; font-weight: 700; }
[data-site="baoviet"] .f-sub { font-size: 0.8rem; color: var(--bv-brass); }
[data-site="baoviet"] .footer-nav ul { display: flex; flex-wrap: wrap; gap: 0.5rem 1.5rem; margin-bottom: 1.6rem; }
[data-site="baoviet"] .footer-nav a { color: #dbe4ee; text-decoration: none; font-size: 0.88rem; font-weight: 600; }
[data-site="baoviet"] .footer-nav a:hover { color: var(--bv-brass); }
[data-site="baoviet"] .disclaimer {
  border-top: 1px solid rgba(255, 255, 255, 0.16);
  padding-top: 1.3rem;
  font-size: 0.8rem;
  color: #93a6ba;
  max-width: 62rem;
}
[data-site="baoviet"] .colophon { font-size: 0.72rem; color: #7f93a8; }

/* ---------- responsive ---------- */
@media (max-width: 1020px) {
  [data-site="baoviet"] .hero-grid { grid-template-columns: 1fr; }
  [data-site="baoviet"] .monument { max-width: 34rem; }
  [data-site="baoviet"] .chronicle-grid { grid-template-columns: 1fr; }
  [data-site="baoviet"] .chronicle-head { position: static; }
  [data-site="baoviet"] .numbers-grid { grid-template-columns: 1fr; }
  [data-site="baoviet"] .eco-list { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 760px) {
  [data-site="baoviet"] .nav-toggle { display: flex; }
  [data-site="baoviet"] .main-nav {
    display: none;
    position: absolute;
    top: 100%; left: 0; right: 0;
    background: var(--bv-navy);
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
    padding: 0.5rem 1.25rem 1rem;
  }
  [data-site="baoviet"] .main-nav.is-open { display: block; }
  [data-site="baoviet"] .main-nav ul { flex-direction: column; gap: 0; }
  [data-site="baoviet"] .main-nav a { padding: 0.8rem 0; border-bottom: 1px solid rgba(255, 255, 255, 0.14); }
  [data-site="baoviet"] .header-cta { display: none; }

  [data-site="baoviet"] .rafter > summary {
    grid-template-columns: 2.6rem minmax(0, 1fr) 1.4rem;
    gap: 0.4rem 0.8rem;
  }
  [data-site="baoviet"] .rafter-name { grid-column: 2; grid-row: 1; min-width: 0; }
  [data-site="baoviet"] .rafter-mark { grid-column: 3; grid-row: 1; }
  [data-site="baoviet"] .rafter-line { grid-column: 2 / -1; grid-row: 2; }
  [data-site="baoviet"] .rafter-body { padding: 0 0.2rem 1.3rem 3.4rem; }
  [data-site="baoviet"] .door { grid-template-columns: 2.6rem 1fr; gap: 0.35rem 0.9rem; }
  [data-site="baoviet"] .door p { grid-column: 2 / -1; }
  [data-site="baoviet"] .door-go { grid-column: 2 / -1; }
  [data-site="baoviet"] .spine::before { left: 3.8rem; }
  [data-site="baoviet"] .spine-item > summary { grid-template-columns: 3.8rem minmax(0, 1fr) 1.2rem; gap: 0.3rem 1.1rem; }
  [data-site="baoviet"] .spine-item > summary::before { left: 3.8rem; }
  [data-site="baoviet"] .spine-body { margin-left: 4.9rem; }
  [data-site="baoviet"] .spine-year { font-size: 1.25rem; }
  [data-site="baoviet"] .hero-marks { gap: 1.4rem; flex-wrap: wrap; }
}

@media (max-width: 520px) {
  [data-site="baoviet"] .section { padding: 2.6rem 0; }
  [data-site="baoviet"] .eco-list { grid-template-columns: 1fr; }
  [data-site="baoviet"] .ledger-row { flex-wrap: wrap; gap: 0.3rem; }
  [data-site="baoviet"] .hero-actions .btn { width: 100%; text-align: center; }
}

/* ---------- motion ---------- */
[data-site="baoviet"] .hero-copy > * { animation: bv-rise 0.7s var(--bv-ease) both; }
[data-site="baoviet"] .hero-copy > *:nth-child(2) { animation-delay: 0.06s; }
[data-site="baoviet"] .hero-copy > *:nth-child(3) { animation-delay: 0.12s; }
[data-site="baoviet"] .hero-copy > *:nth-child(4) { animation-delay: 0.18s; }
[data-site="baoviet"] .hero-copy > *:nth-child(5) { animation-delay: 0.24s; }
[data-site="baoviet"] .hero-copy > *:nth-child(6) { animation-delay: 0.3s; }
[data-site="baoviet"] .monument { animation: bv-rise 0.9s var(--bv-ease) both; animation-delay: 0.16s; }
@keyframes bv-rise { from { transform: translateY(22px); } }

@supports (animation-timeline: view()) {
  @media (prefers-reduced-motion: no-preference) {
    [data-site="baoviet"] .section-head {
      animation: bv-view linear both;
      animation-timeline: view();
      animation-range: entry 0% cover 20%;
    }
    @keyframes bv-view { from { transform: translateY(22px); } }
  }
}

@media (prefers-reduced-motion: reduce) {
  [data-site="baoviet"] *,
  [data-site="baoviet"] *::before,
  [data-site="baoviet"] *::after {
    animation: none !important;
    transition: none !important;
    scroll-behavior: auto !important;
  }
}