/* Vận Tải Bắc Đẩu — original stylesheet, no external fonts/libraries */
:root {
  --navy: #0b1f3a;
  --navy-2: #123056;
  --navy-3: #1a3d6b;
  --gold: #c49616;
  --gold-2: #e0b33a;
  --gold-soft: #f8e8b0;
  --cream: #f7f4ee;
  --paper: #fffdf8;
  --ink: #1c2430;
  --muted: #5b6573;
  --line: #e4ddd0;
  --ok: #0f8a6a;
  --ok-2: #0c6e55;
  --danger: #b42318;
  --shadow: 0 8px 28px rgba(11, 31, 58, 0.12);
  --radius: 14px;
  --header-h: 72px;
  --max: 1120px;
  --font: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", "Liberation Sans", sans-serif;
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font);
  color: var(--ink);
  background: var(--cream);
  line-height: 1.65;
  min-height: 100%;
}
img, svg { max-width: 100%; height: auto; display: block; }
a { color: var(--navy-3); text-underline-offset: 2px; }
a:hover { color: var(--gold); }
:focus-visible {
  outline: 3px solid var(--gold-2);
  outline-offset: 2px;
}
.skip {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--gold);
  color: var(--navy);
  padding: 8px 16px;
  z-index: 1000;
}
.skip:focus { left: 8px; top: 8px; }

/* Header */
.topbar {
  background: var(--navy);
  color: #fff;
  font-size: 0.875rem;
}
.topbar-inner, .nav-inner, .wrap {
  width: min(var(--max), calc(100% - 32px));
  margin: 0 auto;
}
.topbar-inner {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 20px;
  justify-content: space-between;
  align-items: center;
  padding: 8px 0;
}
.topbar a { color: #fff; text-decoration: none; font-weight: 600; }
.topbar a:hover { color: var(--gold-2); }
.topbar .sep { opacity: 0.4; margin: 0 6px; }
.site-header {
  position: sticky;
  top: 0;
  z-index: 80;
  background: rgba(255, 253, 248, 0.96);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: var(--header-h);
  gap: 16px;
}
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--navy);
  font-weight: 800;
  letter-spacing: 0.01em;
  flex-shrink: 0;
}
.logo svg { width: 40px; height: 40px; }
.logo-text { line-height: 1.15; }
.logo-text small {
  display: block;
  font-weight: 600;
  font-size: 0.7rem;
  color: var(--muted);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.nav {
  display: flex;
  align-items: center;
  gap: 4px;
}
.nav > a, .nav summary {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  text-decoration: none;
  color: var(--navy);
  font-weight: 600;
  font-size: 0.94rem;
  padding: 10px 12px;
  border-radius: 8px;
  cursor: pointer;
  list-style: none;
  background: none;
  border: 0;
}
.nav > a:hover, .nav summary:hover, .nav > a[aria-current="page"] {
  background: var(--cream);
  color: var(--navy);
}
.nav details { position: relative; }
.nav details ul {
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 260px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 12px;
  box-shadow: var(--shadow);
  list-style: none;
  margin: 4px 0 0;
  padding: 8px;
  z-index: 20;
}
.nav details ul a {
  display: block;
  padding: 10px 12px;
  text-decoration: none;
  color: var(--ink);
  border-radius: 8px;
  font-weight: 600;
  font-size: 0.92rem;
}
.nav details ul a:hover { background: var(--cream); color: var(--navy); }
.header-calls {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  line-height: 1.25;
}
.header-calls a {
  color: var(--navy);
  font-weight: 800;
  text-decoration: none;
  font-size: 0.95rem;
  white-space: nowrap;
}
.header-calls a:hover { color: var(--gold); }
.header-calls span { font-size: 0.72rem; color: var(--muted); font-weight: 600; }
.menu-btn {
  display: none;
  width: 44px;
  height: 44px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: #fff;
  cursor: pointer;
  align-items: center;
  justify-content: center;
}
.menu-btn span, .menu-btn span::before, .menu-btn span::after {
  display: block;
  width: 18px;
  height: 2px;
  background: var(--navy);
  position: relative;
  border-radius: 1px;
}
.menu-btn span::before, .menu-btn span::after {
  content: "";
  position: absolute;
  left: 0;
}
.menu-btn span::before { top: -6px; }
.menu-btn span::after { top: 6px; }

/* Hero */
.hero {
  background:
    radial-gradient(1200px 400px at 10% -10%, rgba(224, 179, 58, 0.18), transparent 50%),
    linear-gradient(160deg, var(--navy) 0%, var(--navy-2) 55%, #0a2a4a 100%);
  color: #fff;
  padding: 56px 0 64px;
  position: relative;
  overflow: hidden;
}
.hero-grid {
  width: min(var(--max), calc(100% - 32px));
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 40px;
  align-items: center;
}
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--gold-2);
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-size: 0.75rem;
  margin-bottom: 12px;
}
h1, h2, h3 { line-height: 1.25; margin: 0 0 12px; color: var(--navy); }
.hero h1 { color: #fff; font-size: clamp(1.8rem, 3.4vw, 2.7rem); max-width: 18ch; }
.hero p { color: rgba(255,255,255,0.86); font-size: 1.05rem; margin: 0 0 24px; max-width: 46ch; }
.btns { display: flex; flex-wrap: wrap; gap: 12px; }
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 48px;
  padding: 10px 20px;
  border-radius: 999px;
  font-weight: 700;
  text-decoration: none;
  border: 2px solid transparent;
  cursor: pointer;
  font-size: 1rem;
  font-family: inherit;
}
.btn-gold { background: var(--gold-2); color: var(--navy); }
.btn-gold:hover { background: #f0c85a; color: var(--navy); }
.btn-ghost { background: transparent; color: #fff; border-color: rgba(255,255,255,0.35); }
.btn-ghost:hover { border-color: var(--gold-2); color: var(--gold-2); }
.btn-navy { background: var(--navy); color: #fff; }
.btn-navy:hover { background: var(--navy-3); color: #fff; }
.btn-line { background: #fff; color: var(--navy); border-color: var(--line); }
.btn-line:hover { border-color: var(--navy); color: var(--navy); }

.hero-art {
  justify-self: center;
  width: min(100%, 420px);
}

/* Sections */
section { padding: 56px 0; }
.section-head { margin-bottom: 28px; }
.section-head p { color: var(--muted); margin: 0; max-width: 60ch; }
.grid-4, .grid-3, .grid-2 {
  display: grid;
  gap: 20px;
}
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.card {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 22px;
  box-shadow: 0 1px 0 rgba(11,31,58,0.03);
  display: flex;
  flex-direction: column;
  gap: 10px;
  text-decoration: none;
  color: inherit;
  min-height: 100%;
}
a.card:hover { border-color: var(--gold); transform: translateY(-2px); box-shadow: var(--shadow); }
.card h3 { font-size: 1.1rem; margin: 0; }
.card p { margin: 0; color: var(--muted); flex: 1; }
.card .icon {
  width: 52px;
  height: 52px;
  color: var(--navy);
}
.more {
  font-weight: 700;
  color: var(--navy-3);
  font-size: 0.92rem;
}
.band {
  background: var(--navy);
  color: #fff;
}
.band h2, .band p { color: #fff; }
.band p { opacity: 0.85; }
.steps { counter-reset: step; display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.step {
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius);
  padding: 22px;
}
.step::before {
  counter-increment: step;
  content: "0" counter(step);
  display: block;
  color: var(--gold-2);
  font-weight: 800;
  font-size: 1.1rem;
  margin-bottom: 8px;
}
.step h3 { color: #fff; }
.step p { margin: 0; }

/* Page chrome */
.page-hero {
  background: linear-gradient(160deg, var(--navy), var(--navy-2));
  color: #fff;
  padding: 36px 0 40px;
}
.page-hero h1 { color: #fff; font-size: clamp(1.6rem, 3vw, 2.2rem); }
.page-hero p { color: rgba(255,255,255,0.82); margin: 0; max-width: 60ch; }
.crumbs { font-size: 0.85rem; margin-bottom: 10px; color: rgba(255,255,255,0.7); }
.crumbs a { color: var(--gold-2); text-decoration: none; }
.prose { max-width: 760px; }
.prose p, .prose li { color: #2a3340; }
.prose h2 { margin-top: 1.6em; font-size: 1.3rem; }
.prose h3 { margin-top: 1.2em; font-size: 1.08rem; }
.note {
  background: #fff8e1;
  border-left: 4px solid var(--gold);
  padding: 14px 16px;
  border-radius: 0 10px 10px 0;
  color: #3d3420;
}
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
  align-items: start;
}
.box {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 24px;
}
label { display: block; font-weight: 700; margin: 0 0 6px; font-size: 0.92rem; }
input, textarea {
  width: 100%;
  font: inherit;
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: #fff;
  margin-bottom: 14px;
}
textarea { min-height: 120px; resize: vertical; }
.form-msg {
  display: none;
  background: #e8f7f1;
  border: 1px solid #b7e4d4;
  color: #0c4a38;
  padding: 14px 16px;
  border-radius: 10px;
  margin-bottom: 14px;
}
.form-msg.is-on { display: block; }
.contact-list { list-style: none; padding: 0; margin: 0; }
.contact-list li { padding: 10px 0; border-bottom: 1px solid var(--line); }
.contact-list a { font-weight: 700; text-decoration: none; }

/* Footer */
.site-footer {
  background: #081628;
  color: rgba(255,255,255,0.82);
  padding: 48px 0 20px;
  margin-top: 20px;
}
.foot-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 28px;
  width: min(var(--max), calc(100% - 32px));
  margin: 0 auto 28px;
}
.site-footer h3 { color: #fff; font-size: 1rem; }
.site-footer a { color: rgba(255,255,255,0.82); text-decoration: none; }
.site-footer a:hover { color: var(--gold-2); }
.site-footer ul { list-style: none; margin: 0; padding: 0; }
.site-footer li { margin: 0 0 8px; }
.legal {
  width: min(var(--max), calc(100% - 32px));
  margin: 0 auto;
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: 16px;
  font-size: 0.85rem;
  color: rgba(255,255,255,0.6);
}
.logo-foot { display: flex; gap: 10px; align-items: center; color: #fff; font-weight: 800; text-decoration: none; margin-bottom: 12px; }
.logo-foot svg { width: 36px; height: 36px; }

/* Floating call buttons — Zalo-style, tel: only */
.float-calls {
  position: fixed;
  right: 16px;
  bottom: 16px;
  z-index: 90;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.float-calls a {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: #128c7e;
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 8px 20px rgba(18, 140, 126, 0.4);
  text-decoration: none;
  position: relative;
}
.float-calls a:hover { background: #0e6e63; color: #fff; }
.float-calls a svg { width: 26px; height: 26px; }
.float-calls a[data-label]::after {
  content: attr(data-label);
  position: absolute;
  right: 64px;
  background: #0e6e63;
  color: #fff;
  font-size: 0.78rem;
  font-weight: 700;
  padding: 6px 10px;
  border-radius: 8px;
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transform: translateX(6px);
  transition: 0.15s ease;
}
.float-calls a:hover::after, .float-calls a:focus-visible::after { opacity: 1; transform: none; }

/* News list */
.news-item { flex-direction: row; align-items: flex-start; gap: 18px; }
.news-item .thumb { width: 88px; flex-shrink: 0; }

/* 404 */
.err {
  text-align: center;
  padding: 80px 16px;
}
.err h1 { font-size: 3rem; }

@media (max-width: 980px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-3, .steps, .foot-grid, .hero-grid, .contact-grid { grid-template-columns: 1fr 1fr; }
  .foot-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 800px) {
  .header-calls { display: none; }
  .menu-btn { display: inline-flex; }
  .nav {
    display: none;
    position: absolute;
    left: 0; right: 0; top: 100%;
    background: #fff;
    border-bottom: 1px solid var(--line);
    flex-direction: column;
    align-items: stretch;
    padding: 8px 16px 16px;
    box-shadow: var(--shadow);
  }
  body.nav-open .nav { display: flex; }
  .nav details ul { position: static; box-shadow: none; border: 0; padding-left: 8px; min-width: 0; }
  .hero { padding: 36px 0 44px; }
  .hero-grid { grid-template-columns: 1fr; }
  .hero-art { order: -1; width: min(100%, 280px); }
}
@media (max-width: 640px) {
  .grid-4, .grid-3, .grid-2, .steps, .foot-grid, .contact-grid, .hero-grid { grid-template-columns: 1fr; }
  .news-item { flex-direction: column; }
  .topbar-inner { justify-content: center; text-align: center; }
}