:root {
  --va-maroon: #9b002c;
  --va-maroon-dark: #6f001f;
  --va-navy: #07162e;
  --va-blue: #0f7dc2;
  --va-blue-soft: #eaf6ff;
  --va-gold: #f5b83d;
  --va-ink: #172033;
  --va-muted: #68758a;
  --va-line: #e7edf4;
  --va-bg: #f6f9fc;
  --va-white: #ffffff;
  --shadow: 0 22px 60px rgba(7, 22, 46, .13);
  --radius: 24px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans Thai", "Tahoma", sans-serif;
  color: var(--va-ink);
  background:
    radial-gradient(circle at 15% 0%, rgba(15, 125, 194, .14), transparent 32rem),
    radial-gradient(circle at 90% 10%, rgba(155, 0, 44, .10), transparent 28rem),
    var(--va-bg);
}
a { color: inherit; text-decoration: none; }
.page-shell { width: min(1180px, calc(100% - 32px)); margin: 0 auto; }
.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 24px 0;
}
.brand { display: flex; align-items: center; gap: 14px; }
.brand-mark {
  width: 52px;
  height: 52px;
  border-radius: 18px;
  display: grid;
  place-items: center;
  background: linear-gradient(135deg, var(--va-maroon), var(--va-navy));
  color: white;
  box-shadow: 0 12px 28px rgba(155, 0, 44, .25);
}
.brand-mark svg { width: 32px; height: 32px; }
.brand-mark path { fill: none; stroke: currentColor; stroke-width: 4; stroke-linecap: round; stroke-linejoin: round; }
.brand strong { display: block; font-size: 1.05rem; color: var(--va-navy); }
.brand small { display: block; color: var(--va-muted); margin-top: 2px; }
.nav-links { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.nav-links a {
  padding: 10px 14px;
  border-radius: 999px;
  color: var(--va-navy);
  background: rgba(255,255,255,.72);
  border: 1px solid rgba(7, 22, 46, .08);
}
.nav-links a:hover { border-color: rgba(155, 0, 44, .25); color: var(--va-maroon); }
.hero {
  display: grid;
  grid-template-columns: 1.15fr .85fr;
  gap: 36px;
  align-items: center;
  padding: 56px;
  border-radius: 36px;
  background: linear-gradient(135deg, rgba(255,255,255,.96), rgba(234,246,255,.92));
  box-shadow: var(--shadow);
  overflow: hidden;
  position: relative;
}
.hero:before {
  content: "";
  position: absolute;
  right: -120px;
  bottom: -160px;
  width: 360px;
  height: 360px;
  border-radius: 50%;
  background: rgba(155, 0, 44, .08);
}
.eyebrow {
  margin: 0 0 10px;
  color: var(--va-maroon);
  font-weight: 800;
  letter-spacing: .08em;
  text-transform: uppercase;
  font-size: .78rem;
}
h1, h2, h3, p { margin-top: 0; }
h1 {
  font-size: clamp(2rem, 4vw, 4rem);
  line-height: 1.08;
  color: var(--va-navy);
  margin-bottom: 20px;
  letter-spacing: -.035em;
}
.lead { color: var(--va-muted); font-size: 1.18rem; line-height: 1.8; max-width: 670px; }
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; margin-top: 28px; }
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 22px;
  border-radius: 999px;
  font-weight: 800;
  border: 1px solid transparent;
}
.btn.primary { background: linear-gradient(135deg, var(--va-maroon), var(--va-maroon-dark)); color: white; box-shadow: 0 16px 32px rgba(155,0,44,.24); }
.btn.ghost { background: white; color: var(--va-navy); border-color: var(--va-line); }
.hero-card {
  position: relative;
  padding: 24px;
  border-radius: 28px;
  background: var(--va-white);
  box-shadow: 0 22px 46px rgba(7,22,46,.12);
  z-index: 1;
}
.mini-window { display: flex; gap: 7px; margin-bottom: 18px; }
.mini-window span { width: 11px; height: 11px; border-radius: 50%; background: var(--va-line); }
.mini-window span:first-child { background: var(--va-maroon); }
.mini-window span:nth-child(2) { background: var(--va-gold); }
.mini-window span:nth-child(3) { background: var(--va-blue); }
.file-stack { display: grid; gap: 12px; }
.file-card {
  padding: 18px 18px;
  border-radius: 18px;
  background: var(--va-blue-soft);
  color: var(--va-navy);
  font-weight: 800;
  border: 1px solid #d7eefe;
}
.file-card.accent { background: var(--va-navy); color: white; }
.hero-card p { margin: 18px 0 0; color: var(--va-muted); }
.quick-tools { padding: 72px 0 40px; }
.section-title { display: flex; align-items: end; justify-content: space-between; gap: 24px; margin-bottom: 22px; }
.section-title h2 { color: var(--va-navy); font-size: clamp(1.7rem, 3vw, 2.6rem); margin-bottom: 0; }
.tool-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.tool-card {
  display: block;
  padding: 26px;
  border-radius: var(--radius);
  background: rgba(255,255,255,.9);
  border: 1px solid var(--va-line);
  min-height: 218px;
  transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease;
}
.tool-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); border-color: rgba(155, 0, 44, .22); }
.icon {
  display: grid;
  place-items: center;
  width: 48px;
  height: 48px;
  border-radius: 16px;
  color: white;
  font-size: 1.6rem;
  background: linear-gradient(135deg, var(--va-blue), var(--va-navy));
  margin-bottom: 18px;
}
.tool-card h3 { color: var(--va-navy); margin-bottom: 10px; font-size: 1.24rem; }
.tool-card p { color: var(--va-muted); line-height: 1.7; margin: 0; }
.notice {
  margin: 30px 0 36px;
  padding: 28px;
  border-radius: 28px;
  background: var(--va-navy);
  color: white;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
}
.notice h2 { margin-bottom: 6px; }
.notice p { color: rgba(255,255,255,.75); line-height: 1.7; margin-bottom: 0; max-width: 780px; }
.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  padding: 28px 0 42px;
  color: var(--va-muted);
  font-size: .94rem;
}
@media (max-width: 900px) {
  .site-header, .notice, .site-footer { align-items: flex-start; flex-direction: column; }
  .hero { grid-template-columns: 1fr; padding: 34px 24px; }
  .tool-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 620px) {
  .page-shell { width: min(100% - 22px, 1180px); }
  .nav-links a { width: 100%; text-align: center; }
  .nav-links { width: 100%; }
  .tool-grid { grid-template-columns: 1fr; }
  .hero-actions .btn { width: 100%; }
}