:root {
  --bg: #f3f6fb;
  --sidebar: #ffffff;
  --content: #ffffff;
  --topbar: #cfe1f7;
  --topbar-line: #b9cde6;
  --accent: #3d5a80;
  --accent-2: #516e94;
  --text: #1f2a36;
  --muted: #6b7b8c;
  --line: #e2e8f0;
}

body {
  margin: 0;
  font-family: "Source Sans 3", "IBM Plex Sans", "Segoe UI", "Tahoma", sans-serif;
  background: var(--bg);
  color: var(--text);
}

a {
  text-decoration: none;
}

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

.admin-nav {
  width: 240px;
  background: var(--sidebar);
  color: var(--text);
  padding: 20px;
  border-right: 1px solid var(--line);
}

.admin-nav a {
  color: var(--accent);
  display: block;
  padding: 8px 0;
  font-weight: 600;
}

.admin-main {
  flex: 1;
  padding: 24px 32px;
  background: var(--content);
}

.admin-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--topbar);
  border: 1px solid var(--topbar-line);
  padding: 12px 16px;
  margin-bottom: 16px;
  border-radius: 10px;
}

.form-row {
  margin-bottom: 12px;
}

.form-row label {
  display: block;
  margin-bottom: 6px;
  font-weight: bold;
}

.form-row input,
.form-row select,
.form-row textarea {
  width: 100%;
  padding: 8px;
  border: 1px solid var(--line);
  border-radius: 10px;
}

.md-toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 8px;
}

.md-toolbar button {
  background: #ffffff;
  border: 1px solid var(--line);
  color: var(--accent);
  padding: 6px 10px;
  border-radius: 10px;
  cursor: pointer;
  font-weight: 600;
  font-size: 13px;
}

.md-toolbar button:hover {
  background: #eef3f9;
}

.button {
  background: var(--accent);
  color: #fff;
  border: none;
  padding: 8px 14px;
  border-radius: 10px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  text-decoration: none;
}

.button.secondary {
  background: var(--accent-2);
}

.button-outline {
  background: #ffffff;
  color: var(--accent);
  border: 1px solid var(--topbar-line);
}

a.button:link,
a.button:visited {
  color: #fff;
}

a.button-outline:link,
a.button-outline:visited {
  color: var(--accent);
}

.button.small {
  padding: 6px 10px;
  font-size: 13px;
}

.button .icon {
  width: 14px;
  height: 14px;
  stroke: currentColor;
  stroke-width: 1.6;
  fill: none;
}

.table {
  width: 100%;
  border-collapse: collapse;
  border-radius: 12px;
  overflow: hidden;
}

.table th, .table td {
  border: 1px solid var(--line);
  padding: 8px;
  text-align: left;
}

.notice {
  background: #f5f8ff;
  border: 1px solid #cdd8ea;
  padding: 12px;
  border-radius: 10px;
  margin-bottom: 16px;
}

.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

@media (max-width: 900px) {
  .admin-wrap {
    flex-direction: column;
  }
  .admin-nav {
    width: 100%;
  }
  .split {
    grid-template-columns: 1fr;
  }
}