html {
  font-size: 15px;
}

body {
  margin: 0;
  font-family: "Segoe UI", Tahoma, sans-serif;
  background:
    radial-gradient(circle at top left, rgba(58, 142, 255, 0.18), transparent 32%),
    linear-gradient(180deg, #f4f7fb 0%, #eaf0f7 100%);
  color: #18212b;
}

.shell {
  min-height: 100vh;
}

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 28px;
  border-bottom: 1px solid rgba(24, 33, 43, 0.08);
  background: rgba(255, 255, 255, 0.8);
  backdrop-filter: blur(10px);
}

.brand {
  color: #12344d;
  text-decoration: none;
  font-size: 1.1rem;
  font-weight: 700;
}

.logout-form {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 0;
}

.user-label {
  color: #4f6479;
  font-size: 0.92rem;
}

.logout-button {
  min-height: 38px;
  border-radius: 999px;
  border: 1px solid #12344d;
  background: #12344d;
  color: #fff;
  padding: 0 16px;
  cursor: pointer;
  font: inherit;
}

.content {
  max-width: 1400px;
  margin: 0 auto;
  padding: 28px;
}

.hero,
.stats,
.columns {
  margin-bottom: 22px;
}

.hero {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  align-items: end;
}

.hero h1 {
  margin: 0 0 10px;
  font-size: 2.4rem;
}

.hero p {
  margin: 0;
  color: #4f6479;
}

.filters {
  display: flex;
  gap: 12px;
  align-items: end;
  flex-wrap: wrap;
}

.filters label {
  display: grid;
  gap: 6px;
  font-size: 0.9rem;
  color: #4f6479;
}

.filters input,
.filters select,
.filters button {
  min-height: 40px;
  border-radius: 12px;
  border: 1px solid rgba(24, 33, 43, 0.14);
  padding: 0 12px;
  font: inherit;
}

.filters button {
  background: #12344d;
  color: #fff;
  border-color: #12344d;
  cursor: pointer;
}

.stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 14px;
}

.card,
.panel {
  background: rgba(255, 255, 255, 0.88);
  border: 1px solid rgba(24, 33, 43, 0.08);
  border-radius: 18px;
  box-shadow: 0 20px 50px rgba(18, 52, 77, 0.08);
}

.card {
  padding: 18px;
}

.card .label {
  display: block;
  margin-bottom: 10px;
  color: #5b7085;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.78rem;
}

.card strong {
  font-size: 1.4rem;
}

.accent {
  background: linear-gradient(135deg, #12344d 0%, #2c6f95 100%);
  color: #fff;
}

.accent .label {
  color: rgba(255, 255, 255, 0.75);
}

.columns {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.columns.wide {
  grid-template-columns: 1.6fr 1fr;
}

.panel {
  padding: 18px;
  overflow: hidden;
}

.panel h2 {
  margin-top: 0;
  font-size: 1.1rem;
}

.rows {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 10px;
}

.rows li {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding-bottom: 10px;
  border-bottom: 1px solid rgba(24, 33, 43, 0.08);
}

.table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}

.table th,
.table td {
  padding: 10px 8px;
  border-bottom: 1px solid rgba(24, 33, 43, 0.08);
  text-align: left;
  vertical-align: top;
}

.table th {
  color: #5b7085;
  font-weight: 600;
}

.login-card {
  max-width: 420px;
  margin: 64px auto;
  padding: 28px;
  background: rgba(255, 255, 255, 0.92);
  border: 1px solid rgba(24, 33, 43, 0.08);
  border-radius: 22px;
  box-shadow: 0 20px 50px rgba(18, 52, 77, 0.08);
}

.login-copy h1 {
  margin: 0 0 10px;
}

.login-copy p {
  margin: 0 0 20px;
  color: #4f6479;
}

.login-form {
  display: grid;
  gap: 14px;
}

.login-form label {
  display: grid;
  gap: 6px;
  color: #4f6479;
  font-size: 0.95rem;
}

.login-form input {
  min-height: 42px;
  border-radius: 12px;
  border: 1px solid rgba(24, 33, 43, 0.14);
  padding: 0 12px;
  font: inherit;
}

.login-form button {
  min-height: 42px;
  border-radius: 12px;
  border: 1px solid #12344d;
  background: #12344d;
  color: #fff;
  cursor: pointer;
  font: inherit;
}

.validation-message {
  color: #b42318;
}

@media (max-width: 900px) {
  .hero,
  .columns,
  .columns.wide {
    grid-template-columns: 1fr;
    display: grid;
  }

  .content {
    padding: 18px;
  }
}