:root {
  --mtas-bg: #f6f8fb;
  --mtas-text: #1f2b3d;
  --mtas-muted: #5d6b7d;
  --mtas-primary: #0d6efd;
  --mtas-success: #198754;
  --mtas-danger: #dc3545;
}

body {
  background: radial-gradient(circle at top left, #eef4ff 0%, #f8fbff 45%, #f3f6fb 100%);
  color: var(--mtas-text);
  min-height: 100vh;
}

.mtas-shell {
  max-width: 960px;
  margin: 48px auto;
  padding: 0 16px;
}

.mtas-card {
  background: #ffffff;
  border: 1px solid #dde5f2;
  border-radius: 16px;
  box-shadow: 0 16px 34px rgba(22, 43, 86, 0.08);
}

.mtas-logo {
  width: 200px;
  height: auto;
}

.mtas-muted {
  color: var(--mtas-muted);
}

.mtas-pill {
  border: 1px solid #d1dcf0;
  border-radius: 999px;
  padding: 8px 14px;
  font-size: 13px;
  color: #385176;
  background: #f5f9ff;
}

.mtas-form-stack {
  max-width: 420px;
  margin: 0 auto;
}

.mtas-form-stack .btn {
  min-width: 220px;
}

.mtas-status-success {
  color: var(--mtas-success);
}

.mtas-status-failed {
  color: var(--mtas-danger);
}

.mtas-admin-nav {
  background: #101a2e;
}

.mtas-admin-nav a,
.mtas-admin-nav span {
  color: #f5f8ff;
  text-decoration: none;
}

.mtas-admin-layout {
  min-height: 100vh;
  display: flex;
}

.mtas-admin-sidebar {
  width: 260px;
  min-width: 260px;
  flex: 0 0 260px;
  background: linear-gradient(180deg, #111a2e 0%, #1a2a48 100%);
  color: #f1f6ff;
  padding: 20px 16px;
  position: sticky;
  top: 0;
  height: 100vh;
}

.mtas-admin-brand {
  padding: 8px 8px 18px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
  margin-bottom: 14px;
}

.mtas-admin-brand-logo {
  width: 120px;
  height: auto;
  display: block;
  filter: brightness(0) saturate(100%) invert(91%) sepia(8%) saturate(201%) hue-rotate(184deg) brightness(101%) contrast(94%);
}

.mtas-admin-brand-text {
  font-size: 13px;
  color: #bad2ff;
  margin-top: 6px;
}

.mtas-admin-menu {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.mtas-admin-menu a {
  color: #d9e8ff;
  text-decoration: none;
  padding: 10px 12px;
  border-radius: 10px;
  font-weight: 500;
}

.mtas-admin-menu a:hover,
.mtas-admin-menu a.active {
  background: rgba(98, 138, 255, 0.25);
  color: #ffffff;
}

.mtas-admin-main {
  flex: 1;
  padding: 20px 20px 28px;
}

.mtas-admin-header {
  margin-bottom: 16px;
}

@media (max-width: 768px) {
  .mtas-shell {
    margin-top: 24px;
  }

  .mtas-admin-layout {
    flex-direction: column;
  }

  .mtas-admin-sidebar {
    width: 100%;
    height: auto;
    position: static;
  }
}