:root {
  --page-bg: #b3b9c4;
  --surface: #ffffff;
  --surface-soft: #eef2f7;
  --ink: #10213b;
  --ink-soft: #4b5c75;
  --line: #d8e0ec;
  --primary: #0b5cab;
  --primary-ink: #ffffff;
  --ok: #166534;
  --bad: #991b1b;
  --warning: #7f1d1d;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: linear-gradient(180deg, #f8faff 0%, var(--page-bg) 100%);
  color: var(--ink);
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
}

a {
  color: var(--primary);
}

.container {
  width: min(1100px, 92vw);
  margin: 0 auto;
}

.site-header {
  border-bottom: 1px solid var(--line);
  background: var(--surface);
  position: sticky;
  top: 0;
  z-index: 10;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.9rem 0;
}

.brand {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--ink);
  text-decoration: none;
}

.nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
}

.nav a {
  text-decoration: none;
  color: var(--ink-soft);
  padding: 0.45rem 0.7rem;
  border-radius: 0.45rem;
}

.nav a:hover,
.nav a:focus,
.nav a.active {
  color: var(--primary);
  background: var(--surface-soft);
}

.page-main {
  padding: 1.5rem 0 2.5rem;
}

.panel {
  max-width: 56rem;
  background: var(--surface);
  padding: 1.4rem;
  border: 1px solid var(--line);
  border-radius: 0.7rem;
}

.table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 1rem;
}

.table td {
  padding: 0.55rem;
  border-bottom: 1px solid var(--line);
}

.table td:first-child {
  font-weight: 600;
  width: 50%;
}

.ok {
  color: var(--ok);
  font-weight: 700;
}

.bad {
  color: var(--bad);
  font-weight: 700;
}

.actions {
  display: flex;
  gap: 0.75rem;
  margin-top: 1rem;
  flex-wrap: wrap;
}

button,
.button {
  border: 1px solid #0a4a89;
  border-radius: 0.45rem;
  background: var(--primary);
  color: var(--primary-ink);
  padding: 0.55rem 0.9rem;
  font-weight: 600;
}

input[type="password"] {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 0.45rem;
  padding: 0.6rem;
}

label {
  display: block;
  margin-top: 1rem;
  font-weight: 600;
}

.notice {
  margin-top: 1rem;
  color: var(--warning);
  font-weight: 600;
}

.hero {
  padding: 0.7rem 0 0.5rem;
}

.hero h1 {
  margin: 0;
  font-size: clamp(1.6rem, 2.8vw, 2.4rem);
}

.hero p {
  margin: 0.5rem 0 0;
  color: var(--ink-soft);
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 0.9rem;
  margin-top: 1.2rem;
}

.card {
  border: 1px solid var(--line);
  border-radius: 0.65rem;
  background: var(--surface);
  padding: 1rem;
}

.site-footer {
  border-top: 1px solid var(--line);
  background: var(--surface);
  padding: 1rem 0;
  color: var(--ink-soft);
  font-size: 0.65rem;
}