:root {
  color-scheme: dark;
  --bg: #071019;
  --panel: #0d1b29;
  --panel-soft: #112435;
  --line: rgba(148, 184, 210, 0.22);
  --text: #f4f8fb;
  --muted: #a9bdca;
  --steel: #78a9c9;
  --accent: #4fc3e8;
}

* { box-sizing: border-box; }

html { background: var(--bg); }

body {
  margin: 0;
  min-height: 100vh;
  color: var(--text);
  background:
    radial-gradient(circle at 85% 5%, rgba(79, 195, 232, 0.14), transparent 34rem),
    linear-gradient(180deg, #08131e 0%, var(--bg) 100%);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.65;
}

a { color: #9edff3; }
a:hover { color: #d3f4ff; }

.shell { width: min(100% - 2rem, 980px); margin-inline: auto; }

header {
  border-bottom: 1px solid var(--line);
  background: rgba(7, 16, 25, 0.9);
}

.header-inner {
  min-height: 78px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}

.brand img { display: block; width: 176px; height: auto; }

nav { display: flex; flex-wrap: wrap; gap: 1rem; }
nav a { color: var(--muted); text-decoration: none; font-weight: 650; }

main { padding: 4.5rem 0 5.5rem; }

.eyebrow {
  margin: 0 0 0.8rem;
  color: var(--accent);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

h1 { margin: 0; max-width: 16ch; font-size: clamp(2.35rem, 7vw, 4.9rem); line-height: 1.02; }
.lede { max-width: 760px; margin: 1.4rem 0 2.5rem; color: var(--muted); font-size: 1.1rem; }

.notice, article, .contact-card {
  border: 1px solid var(--line);
  border-radius: 18px;
  background: linear-gradient(145deg, rgba(17, 36, 53, 0.93), rgba(10, 24, 37, 0.93));
  box-shadow: 0 22px 60px rgba(0, 0, 0, 0.22);
}

.notice { padding: 1rem 1.2rem; margin-bottom: 1.2rem; color: var(--muted); }
article { padding: clamp(1.4rem, 4vw, 2.4rem); }
article section + section { border-top: 1px solid var(--line); margin-top: 2rem; padding-top: 1.5rem; }

h2 { margin: 0 0 0.55rem; font-size: 1.35rem; }
p, ul { margin-top: 0.5rem; }
li + li { margin-top: 0.45rem; }
.updated { color: var(--steel); font-size: 0.9rem; }

.contact-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1rem; }
.contact-card { padding: 1.35rem; }
.contact-card span { display: block; color: var(--muted); }
.contact-card a { display: inline-block; margin-top: 0.45rem; font-weight: 750; }

footer { border-top: 1px solid var(--line); color: var(--muted); }
.footer-inner { min-height: 94px; display: flex; align-items: center; justify-content: space-between; gap: 1rem; flex-wrap: wrap; }
.footer-links { display: flex; gap: 1rem; flex-wrap: wrap; }

@media (max-width: 680px) {
  .header-inner { align-items: flex-start; flex-direction: column; padding-block: 1rem; }
  main { padding-top: 3rem; }
  .contact-grid { grid-template-columns: 1fr; }
}