:root {
  --navy: #12253d;
  --navy-2: #1d3654;
  --ivory: #f6f0e4;
  --paper: #fffdf8;
  --forest: #3c675b;
  --terracotta: #bd694f;
  --gold: #b58a3d;
  --text: #1d2835;
  --muted: #5b6472;
  --line: rgba(18, 37, 61, .18);
  --sans: ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: Georgia, "Times New Roman", Times, serif;
  color: var(--text);
  background: var(--ivory);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
body::before {
  content: "";
  position: fixed;
  inset: 0;
  background-image: linear-gradient(rgba(18,37,61,.05) 1px, transparent 1px), linear-gradient(90deg, rgba(18,37,61,.04) 1px, transparent 1px);
  background-size: 28px 28px;
  opacity: .34;
  pointer-events: none;
  z-index: -1;
}
a { color: var(--navy); text-underline-offset: .2em; }
a:hover, a:focus-visible { color: var(--terracotta); }
.skip-link {
  position: absolute;
  left: 8px;
  top: -48px;
  background: var(--terracotta);
  color: white;
  padding: .65rem .9rem;
  border-radius: 3px;
  z-index: 1000;
}
.skip-link:focus-visible { top: 8px; }
.site-header {
  background: rgba(246,240,228,.96);
  border-top: 4px solid var(--terracotta);
  border-bottom: 1px solid var(--line);
  position: sticky;
  top: 0;
  z-index: 10;
  box-shadow: 0 8px 30px rgba(18,37,61,.06);
  backdrop-filter: blur(10px);
}
.site-top {
  max-width: 1160px;
  margin: 0 auto;
  padding: .8rem 1.25rem .25rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}
.brand-lockup {
  margin: 0;
  color: var(--navy);
  font-size: 1.08rem;
  line-height: 1.2;
  letter-spacing: .06em;
  font-weight: 700;
}
.brand-lockup small {
  display: block;
  margin-top: .24rem;
  font-family: var(--sans);
  font-size: .66rem;
  font-weight: 650;
  color: #465467;
  letter-spacing: .105em;
  text-transform: uppercase;
}
.menu-toggle {
  min-height: 44px;
  border: 1px solid rgba(18,37,61,.4);
  background: var(--paper);
  color: var(--navy);
  padding: .55rem .9rem;
  border-radius: 3px;
  font: 700 .8rem/1 var(--sans);
  letter-spacing: .06em;
  text-transform: uppercase;
  cursor: pointer;
}
.main-nav { max-width: 1160px; margin: 0 auto; padding: .4rem 1.25rem .85rem; }
.js-ready .main-nav { display: none; }
.js-ready .main-nav.open { display: block; }
.main-nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: .4rem;
}
.main-nav a {
  display: block;
  min-height: 44px;
  padding: .62rem .7rem;
  border-bottom: 1px solid var(--line);
  text-decoration: none;
  font: 650 .79rem/1.25 var(--sans);
  color: var(--navy);
}
.main-nav a:hover, .main-nav a:focus-visible { background: rgba(255,255,255,.65); color: var(--terracotta); }
.lang-switch { border: 1px solid rgba(18,37,61,.35) !important; padding-inline: .8rem !important; text-align: center; }
main { max-width: 1160px; margin: 1.75rem auto; padding: 0 1.25rem 3rem; }
section { margin-bottom: 2rem; }
h1 { max-width: 21ch; font-size: clamp(2.05rem, 4.6vw, 4.45rem); line-height: 1.03; letter-spacing: -.035em; color: var(--navy); margin: .25rem 0 1.25rem; text-wrap: balance; }
h2 { color: var(--forest); line-height: 1.2; text-wrap: balance; }
p { text-wrap: pretty; }
.hero {
  position: relative;
  overflow: hidden;
  padding: clamp(1.5rem, 4vw, 3.75rem);
  border-radius: 3px;
  color: #edf2ed;
  background: linear-gradient(118deg, var(--navy) 0 67%, var(--navy-2) 67% 100%);
  box-shadow: 0 24px 60px rgba(18,37,61,.18);
}
.hero::after {
  content: "";
  position: absolute;
  right: -90px;
  top: -110px;
  width: 330px;
  height: 330px;
  border: 1px solid rgba(181,138,61,.35);
  border-radius: 50%;
  box-shadow: 0 0 0 38px rgba(181,138,61,.06), 0 0 0 76px rgba(181,138,61,.04);
  pointer-events: none;
}
.hero > * { position: relative; z-index: 1; }
.hero h1 { max-width: 18ch; color: #fffaf0; }
.hero > p { max-width: 71ch; font-size: clamp(1.05rem, 1.5vw, 1.25rem); color: #dce7e5; }
.grid-2 { display: grid; gap: 1rem; }
.card {
  border: 1px solid var(--line);
  border-top: 3px solid var(--forest);
  padding: clamp(1.1rem, 2.4vw, 1.7rem);
  background: var(--paper);
  color: var(--text);
  border-radius: 3px;
  box-shadow: 0 12px 28px rgba(11,28,48,.1);
}
.hero .card:nth-child(2) { border-top-color: var(--terracotta); background: #faf4e9; }
.card h2 { font-size: clamp(1.25rem, 2vw, 1.65rem); }
.badge {
  display: inline-block;
  font: 700 .69rem/1.2 var(--sans);
  letter-spacing: .08em;
  text-transform: uppercase;
  background: rgba(60,103,91,.12);
  color: #24443a;
  border: 1px solid rgba(60,103,91,.38);
  border-radius: 999px;
  padding: .3rem .6rem;
}
.cta {
  display: inline-block;
  min-height: 44px;
  margin-top: .8rem;
  padding: .65rem .9rem;
  border: 1px solid var(--navy);
  border-radius: 2px;
  color: var(--navy);
  text-decoration: none;
  font: 700 .82rem/1.5 var(--sans);
}
.cta:hover, .cta:focus-visible { background: var(--navy); color: #fff; }
.cta[aria-disabled="true"] { cursor: not-allowed; opacity: .68; border-style: dashed; color: var(--muted); background: rgba(255,255,255,.45); }
.cta[aria-disabled="true"]:hover { background: rgba(255,255,255,.45); color: var(--muted); }
.badge-alert { background: rgba(189,105,79,.13); border-color: rgba(189,105,79,.45); color: #723f2e; }
.diagram, .timeline, .notes {
  border: 1px solid var(--line);
  border-top: 3px solid var(--gold);
  padding: clamp(1rem, 2.6vw, 1.8rem);
  background: rgba(255,253,248,.94);
  box-shadow: 0 12px 34px rgba(18,37,61,.055);
}
.firewall-grid { display: grid; gap: 1rem; margin-top: 1.25rem; }
.firewall-grid article { position: relative; min-height: 190px; padding: 1.15rem; border: 1px solid var(--line); background: var(--paper); }
.firewall-grid article > span { display: block; margin-bottom: 1.4rem; font: 700 .72rem/1 var(--sans); letter-spacing: .1em; color: var(--terracotta); }
.firewall-grid h3 { margin: 0 0 .55rem; color: var(--navy); font-size: 1.12rem; }
.firewall-grid p { margin: 0; color: var(--muted); }
.firewall-rule { margin: 1.15rem 0 0; padding-top: 1rem; border-top: 1px solid var(--line); color: var(--navy); }
.timeline { columns: 2; column-gap: 3rem; }
.timeline > p, .timeline > ol { break-inside: avoid; }
.notes { border-top-color: var(--terracotta); }
.table { border-collapse: collapse; width: 100%; margin: .9rem 0; background: rgba(255,253,248,.7); }
.table th, .table td { border-bottom: 1px solid var(--line); padding: .7rem .55rem; text-align: left; }
.table th { width: 45%; color: var(--forest); }
.footer { border-top: 4px solid var(--navy); background: #e8dfcc; padding: 1.5rem 1.25rem; margin-top: 3rem; color: #39485b; font-size: .9rem; }
.site-footer-inner { max-width: 1160px; margin: 0 auto; }
@media (min-width: 760px) {
  .site-top { padding-bottom: .35rem; }
  .main-nav, .js-ready .main-nav { display: block; }
  .menu-toggle { display: none; }
  .main-nav ul { display: flex; align-items: center; gap: .22rem; }
  .main-nav li:nth-last-child(2) { margin-left: auto; }
  .main-nav a { min-height: 38px; padding: .5rem .54rem; border: 0; white-space: nowrap; }
  .lang-switch { min-height: 38px !important; }
  .grid-2 { grid-template-columns: 1.08fr .92fr; gap: 1.15rem; }
  .firewall-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .hero .grid-2 { margin-top: 2.25rem; }
}
@media (max-width: 759px) {
  main { margin-top: 1rem; padding-inline: .8rem; }
  .site-top, .main-nav { padding-inline: .8rem; }
  .hero { padding: 1.4rem 1.05rem; }
  .hero::after { opacity: .5; }
  .timeline { columns: 1; }
  .diagram { margin-inline: -.1rem; }
  .brand-lockup small { max-width: 220px; }
}
@media (prefers-reduced-motion: reduce) { * { scroll-behavior: auto !important; transition: none !important; } }
:focus-visible { outline: 3px solid var(--gold); outline-offset: 3px; }