:root {
  --navy: #0b2545;
  --navy-soft: #13315c;
  --amber: #f2a900;
  --amber-dark: #b97f00;
  --bg: #f4f6f9;
  --card: #ffffff;
  --text: #1b2430;
  --muted: #5b6675;
  --border: #dde3ea;
  --danger: #b42318;
  --ok-bg: #ecfdf3;
  --ok-text: #05603a;
  --warn-bg: #fff8e6;
  --radius: 10px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
}

header {
  background: var(--navy);
  color: #fff;
  border-bottom: 4px solid var(--amber);
}

header .inner, main {
  max-width: 760px;
  margin: 0 auto;
  padding: 16px;
}

header .inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.brand { font-weight: 700; letter-spacing: .04em; }
.brand span { color: var(--amber); }
header form { margin: 0; }
header .who { font-size: .9rem; opacity: .85; margin-right: 8px; }

main { padding-top: 24px; padding-bottom: 48px; }

h1 { font-size: 1.5rem; margin: 0 0 8px; color: var(--navy); }
h2 { font-size: 1.1rem; margin: 0 0 12px; color: var(--navy); }

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  margin-bottom: 20px;
}

.muted { color: var(--muted); font-size: .92rem; }

.btn {
  display: inline-block;
  border: 0;
  border-radius: 8px;
  padding: 10px 18px;
  font: inherit;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
  background: var(--amber);
  color: var(--navy);
}
.btn:hover { background: var(--amber-dark); color: #fff; }
.btn.secondary { background: transparent; color: var(--navy); border: 1px solid var(--border); }
.btn.secondary:hover { background: var(--bg); color: var(--navy); }
.btn.danger { background: transparent; color: var(--danger); border: 1px solid var(--danger); }
.btn.danger:hover { background: var(--danger); color: #fff; }
.btn.small { padding: 4px 10px; font-size: .85rem; }
header .btn.secondary { color: #fff; border-color: rgba(255,255,255,.4); }
header .btn.secondary:hover { background: var(--navy-soft); color: #fff; }

.actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 16px; }
.actions form { margin: 0; }

dl.fields { margin: 0; display: grid; grid-template-columns: max-content 1fr; gap: 10px 16px; align-items: center; }
dl.fields dt { color: var(--muted); font-size: .9rem; }
dl.fields dd { margin: 0; display: flex; gap: 8px; align-items: center; min-width: 0; }
code.value {
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 4px 8px;
  overflow-wrap: anywhere;
}

.alert { border-radius: var(--radius); padding: 12px 16px; margin-bottom: 16px; }
.alert.ok { background: var(--ok-bg); color: var(--ok-text); }
.alert.warn { background: var(--warn-bg); border: 1px solid var(--amber); }
.alert.error { background: #fef3f2; color: var(--danger); }

ul.books { margin: 0; padding-left: 20px; }
ol.steps { margin: 0; padding-left: 20px; }
ol.steps li { margin-bottom: 4px; }
details { margin-top: 12px; }
summary { cursor: pointer; font-weight: 600; color: var(--navy); }

.center { text-align: center; padding: 40px 20px; }

@media (max-width: 560px) {
  dl.fields { grid-template-columns: 1fr; gap: 4px; }
  dl.fields dd { margin-bottom: 8px; }
  header .who { display: none; }
}

form.inline { display: inline; }