:root {
  color-scheme: light;
  --bg: #f6f7f9;
  --surface: #ffffff;
  --text: #1f2933;
  --muted: #64748b;
  --border: #d9e2ec;
  --accent: #2563eb;
  --danger: #b42318;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg);
  color: var(--text);
  font-family: Arial, Helvetica, sans-serif;
  line-height: 1.5;
}

.site-header {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
}

.site-nav,
.page-shell {
  width: min(100% - 32px, 1040px);
  margin: 0 auto;
}

.site-nav {
  min-height: 56px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

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

.nav-user,
.logout-form {
  display: flex;
  align-items: center;
  gap: 12px;
}

.link-button {
  border: 0;
  background: transparent;
  color: var(--accent);
  cursor: pointer;
  font: inherit;
  padding: 0;
}

.page-shell {
  padding: 40px 0;
}

.auth-panel,
.content-panel {
  width: min(100%, 560px);
  padding: 24px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
}

.auth-panel h1,
.content-panel h1 {
  margin: 0 0 8px;
  font-size: 24px;
}

.auth-panel p,
.content-panel p {
  margin: 0 0 24px;
  color: var(--muted);
}

.form-error {
  color: var(--danger) !important;
}

.login-form {
  display: grid;
  gap: 10px;
}

.login-form input,
.login-form button {
  min-height: 40px;
  border-radius: 6px;
  border: 1px solid var(--border);
  padding: 8px 10px;
  font: inherit;
}

.login-form button {
  margin-top: 8px;
  border-color: var(--accent);
  background: var(--accent);
  color: #ffffff;
  cursor: pointer;
}

.user-summary {
  display: grid;
  grid-template-columns: max-content 1fr;
  gap: 8px 16px;
  margin: 0 0 24px;
}

.user-summary dt {
  color: var(--muted);
}

.user-summary dd {
  margin: 0;
}

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

.nav-links a {
  color: var(--accent);
  text-decoration: none;
}

.wide-panel {
  width: min(100%, 960px);
}

.section-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 16px;
}

.data-table th,
.data-table td {
  border-bottom: 1px solid var(--border);
  padding: 10px;
  text-align: left;
  vertical-align: top;
}

.data-table th {
  color: var(--muted);
  font-weight: 700;
}

.small-text {
  font-size: 14px;
}

.step-preview {
  margin-top: 28px;
}

.step-preview h2 {
  margin: 0 0 8px;
  font-size: 20px;
}