:root {
  --bg: #070b16;
  --fg: #e8eefc;
  --muted: #9aa8c7;
  --accent: #3d7eff;
  --card: #121a2c;
  --ok: #3ecf8e;
  --warn: #f0b429;
  --bad: #ef6b6b;
  --font: "Segoe UI", system-ui, sans-serif;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: var(--font);
  background: radial-gradient(1200px 600px at 10% -10%, #152044, var(--bg));
  color: var(--fg);
  min-height: 100vh;
}
a { color: var(--accent); }
.top, .foot, .wrap { max-width: 920px; margin: 0 auto; padding: 1rem 1.25rem; }
.top { display: flex; justify-content: space-between; align-items: center; gap: 1rem; }
.brand { color: var(--fg); text-decoration: none; font-weight: 700; letter-spacing: .02em; }
nav { display: flex; flex-wrap: wrap; gap: .85rem; align-items: center; }
nav a { color: var(--muted); text-decoration: none; }
nav a:hover { color: var(--fg); }
.card {
  background: var(--card);
  border: 1px solid #24314d;
  border-radius: 12px;
  padding: 1.25rem 1.4rem;
  margin: 1rem 0;
}
h1 { font-size: 1.6rem; margin: 0 0 .75rem; }
h2 { font-size: 1.15rem; margin: 0 0 .5rem; }
.muted { color: var(--muted); }
label { display: block; margin: .75rem 0 .25rem; font-size: .9rem; color: var(--muted); }
input[type=email], input[type=password], input[type=text], select {
  width: 100%; max-width: 420px; padding: .65rem .75rem;
  border-radius: 8px; border: 1px solid #334564; background: #0b1220; color: var(--fg);
}
.btn {
  display: inline-block; margin-top: 1rem; padding: .65rem 1.1rem; border-radius: 8px;
  border: 0; background: var(--accent); color: #fff; text-decoration: none; cursor: pointer; font-weight: 600;
}
.btn.secondary { background: transparent; border: 1px solid #3a4d73; color: var(--fg); }
.btn:disabled { opacity: .5; cursor: not-allowed; }
.alert { padding: .75rem 1rem; border-radius: 8px; margin: .75rem 0; }
.alert.ok { background: #123528; color: var(--ok); }
.alert.err { background: #3a1a1a; color: var(--bad); }
.alert.warn { background: #3a3012; color: var(--warn); }
.field-error {
  display: block;
  color: var(--bad);
  font-size: .85rem;
  margin: .2rem 0 .4rem;
  max-width: 420px;
}
.validation-summary-valid { display: none; }
.validation-summary-errors ul { margin: 0; padding-left: 1.1rem; }
.grid { display: grid; gap: .6rem; }
.kv { display: flex; justify-content: space-between; gap: 1rem; border-bottom: 1px solid #1d2940; padding: .45rem 0; }
.inline { display: inline; }
.linkish { background: none; border: 0; color: var(--muted); cursor: pointer; padding: 0; font: inherit; }
.foot { color: var(--muted); font-size: .85rem; padding-bottom: 2rem; }
.foot a { color: var(--muted); }
.check { display: flex; gap: .5rem; align-items: flex-start; margin: .75rem 0; max-width: 520px; }
.check input { margin-top: .25rem; }
table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: .55rem .35rem; border-bottom: 1px solid #1d2940; font-size: .92rem; }