:root {
  --bg: #ffffff;
  --surface: #f7f7fb;
  --border: #e3e5ee;
  --text: #14161f;
  --muted: #5c6478;
  --brand: #1f3bd4;
  --brand-ink: #ffffff;
  --green: #16a34a;
  --red: #c62828;
  --navy: #0b1220;
  --radius: 14px;
  --maxw: 760px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0d1017;
    --surface: #151a24;
    --border: #262d3b;
    --text: #eceef4;
    --muted: #9aa3b8;
    --brand: #6d8bff;
    --brand-ink: #0b1220;
  }
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.65 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
        "Helvetica Neue", Arial, sans-serif;
}

header.site {
  background: var(--navy);
  color: #fff;
  padding: 18px 20px;
}

header.site .inner {
  max-width: var(--maxw);
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

header.site a.brand {
  color: #fff;
  text-decoration: none;
  font-weight: 700;
  font-size: 18px;
  display: flex;
  align-items: center;
  gap: 10px;
}

header.site nav {
  margin-left: auto;
  display: flex;
  gap: 18px;
  flex-wrap: wrap;
}

header.site nav a {
  color: #c9d2e6;
  text-decoration: none;
  font-size: 15px;
}

header.site nav a:hover { color: #fff; }

main {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 32px 20px 72px;
}

h1 { font-size: 30px; line-height: 1.25; margin: 8px 0 6px; }
h2 { font-size: 21px; margin: 34px 0 10px; }
h3 { font-size: 17px; margin: 24px 0 6px; }
p, li { color: var(--text); }
a { color: var(--brand); }

.lede { font-size: 18px; color: var(--muted); margin-top: 0; }
.updated { color: var(--muted); font-size: 14px; margin-bottom: 28px; }

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  margin: 22px 0;
}

.card.warn { border-color: #d9a441; }

table {
  width: 100%;
  border-collapse: collapse;
  margin: 16px 0;
  font-size: 15px;
  display: block;
  overflow-x: auto;
}
th, td {
  text-align: left;
  padding: 10px 12px;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
}
th { color: var(--muted); font-weight: 600; white-space: nowrap; }

label { display: block; font-weight: 600; margin: 16px 0 6px; }

input[type=email], input[type=password] {
  width: 100%;
  padding: 12px 14px;
  font-size: 16px;
  color: var(--text);
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 10px;
}

input:focus { outline: 2px solid var(--brand); outline-offset: 1px; }

button {
  font: inherit;
  font-weight: 600;
  padding: 13px 20px;
  border-radius: 10px;
  border: 0;
  cursor: pointer;
  background: var(--brand);
  color: var(--brand-ink);
}
button.danger { background: var(--red); color: #fff; }
button[disabled] { opacity: .55; cursor: not-allowed; }

.msg { padding: 14px 16px; border-radius: 10px; margin: 18px 0; display: none; }
.msg.show { display: block; }
.msg.err { background: #fdecec; color: #8c1d1d; border: 1px solid #f0c2c2; }
.msg.ok { background: #e8f6ed; color: #14532d; border: 1px solid #b7e0c6; }
@media (prefers-color-scheme: dark) {
  .msg.err { background: #3a1b1b; color: #ffc9c9; border-color: #5c2a2a; }
  .msg.ok { background: #10301f; color: #b6f0cd; border-color: #1f5236; }
}

footer.site {
  border-top: 1px solid var(--border);
  padding: 26px 20px 48px;
  color: var(--muted);
  font-size: 14px;
}
footer.site .inner { max-width: var(--maxw); margin: 0 auto; }
footer.site a { color: var(--muted); }

.disclaimer {
  font-size: 13px;
  color: var(--muted);
  border-left: 3px solid var(--border);
  padding-left: 14px;
  margin-top: 26px;
}