:root {
  --bg: #f4f6f8;
  --surface: #ffffff;
  --surface-2: #eef2f5;
  --ink: #151923;
  --muted: #697386;
  --line: #dbe2ea;
  --blue: #2457a6;
  --green: #12805c;
  --shadow: 0 10px 28px rgba(18, 28, 45, 0.12);
  --radius: 8px;
}

* {
  box-sizing: border-box;
}

html {
  min-height: 100%;
  color: var(--ink);
  background: var(--bg);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

body {
  min-height: 100%;
  margin: 0;
  background:
    linear-gradient(180deg, rgba(36, 87, 166, 0.10), rgba(244, 246, 248, 0) 240px),
    var(--bg);
}

a {
  color: var(--blue);
  font-weight: 800;
  text-decoration: none;
}

a:hover,
a:focus-visible {
  text-decoration: underline;
  outline: none;
}

.app-header {
  color: #fff;
  background: linear-gradient(135deg, #15335f 0%, #176b56 100%);
  box-shadow: var(--shadow);
}

.header-inner,
main,
.site-footer {
  width: min(100%, 860px);
  margin: 0 auto;
  padding-right: 16px;
  padding-left: 16px;
}

.header-inner {
  padding-top: 16px;
  padding-bottom: 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
}

.brand {
  min-width: 0;
}

.brand h1 {
  margin: 0;
  font-size: 21px;
  line-height: 1.15;
}

.brand p {
  margin: 4px 0 0;
  color: rgba(255, 255, 255, 0.78);
  font-size: 12px;
}

.header-link {
  min-height: 38px;
  padding: 9px 12px;
  border: 1px solid rgba(255, 255, 255, 0.24);
  border-radius: var(--radius);
  color: #fff;
  background: rgba(255, 255, 255, 0.12);
  font-size: 13px;
  white-space: nowrap;
}

main {
  padding-top: 22px;
  padding-bottom: 28px;
}

.panel {
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: 0 4px 14px rgba(18, 28, 45, 0.06);
}

.panel + .panel {
  margin-top: 14px;
}

h2 {
  margin: 0 0 10px;
  font-size: 22px;
  line-height: 1.2;
}

h3 {
  margin: 18px 0 8px;
  font-size: 16px;
}

p,
li {
  color: var(--muted);
  font-size: 14px;
  line-height: 1.6;
}

ul {
  margin: 8px 0 0;
  padding-left: 20px;
}

.notice {
  padding: 12px;
  border: 1px solid rgba(18, 128, 92, 0.25);
  border-radius: var(--radius);
  color: var(--ink);
  background: rgba(18, 128, 92, 0.08);
  font-size: 13px;
  line-height: 1.5;
}

.site-footer {
  padding-top: 8px;
  padding-bottom: 28px;
  color: var(--muted);
  font-size: 12px;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 14px;
  margin-bottom: 8px;
}

@media (min-width: 720px) {
  .header-inner,
  main,
  .site-footer {
    padding-right: 20px;
    padding-left: 20px;
  }

  .panel {
    padding: 22px;
  }
}