/* Email Marketing Platform — Black & white theme */
:root {
  --bg-page: #f5f5f5;
  --bg-card: #ffffff;
  --text-primary: #000000;
  --text-secondary: #6b6b6b;
  --border: #e0e0e0;
  --radius: 8px;
  --shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
  --sidebar-width: 220px;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 14px;
  color: var(--text-primary);
  background: var(--bg-page);
  line-height: 1.5;
}

#app {
  display: flex;
  min-height: 100vh;
}

.sidebar {
  width: var(--sidebar-width);
  flex-shrink: 0;
  background: var(--bg-card);
  border-right: 1px solid var(--border);
  padding: 24px 0;
}

.sidebar-logo {
  padding: 0 24px 24px;
  font-size: 18px;
  font-weight: 600;
  color: var(--text-primary);
  text-decoration: none;
  display: block;
}

.sidebar-nav {
  list-style: none;
  margin: 0;
  padding: 0;
}

.sidebar-nav li {
  margin: 0;
}

.sidebar-nav a {
  display: block;
  padding: 8px 24px;
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 13px;
}

.sidebar-nav a:hover {
  color: var(--text-primary);
}

.sidebar-nav a.active {
  font-weight: 700;
  color: var(--text-primary);
}

.sidebar-group-label {
  padding: 16px 24px 6px;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-secondary);
}

.main {
  flex: 1;
  padding: 32px;
  overflow-y: auto;
}

.card {
  background: var(--bg-card);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 24px;
  margin-bottom: 24px;
}

.card:last-child {
  margin-bottom: 0;
}

.card h1 {
  margin: 0 0 8px;
  font-size: 24px;
  font-weight: 700;
}

.card p {
  margin: 0;
  color: var(--text-secondary);
  font-size: 14px;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 10px 18px;
  font-family: inherit;
  font-size: 14px;
  font-weight: 500;
  border-radius: var(--radius);
  cursor: pointer;
  border: 1px solid var(--text-primary);
  background: transparent;
  color: var(--text-primary);
  text-decoration: none;
}

.btn:hover {
  background: var(--text-primary);
  color: var(--bg-card);
}

.btn-primary {
  background: var(--text-primary);
  color: var(--bg-card);
}

.btn-primary:hover {
  background: #333;
  color: var(--bg-card);
}

.input,
textarea,
select {
  width: 100%;
  max-width: 400px;
  padding: 10px 12px;
  font-family: inherit;
  font-size: 14px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text-primary);
  background: var(--bg-card);
}

.input:focus,
textarea:focus,
select:focus {
  outline: none;
  border-color: var(--text-primary);
}

label {
  display: block;
  margin-bottom: 4px;
  font-weight: 500;
  font-size: 13px;
}

.form-group {
  margin-bottom: 16px;
}

.form-row {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.badge {
  display: inline-block;
  padding: 4px 10px;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  border-radius: 999px;
  background: var(--border);
  color: var(--text-primary);
}

.badge.verified {
  background: #e8f5e9;
  color: #2e7d32;
}

.table-wrap {
  overflow-x: auto;
}

table {
  width: 100%;
  border-collapse: collapse;
}

th,
td {
  padding: 12px 16px;
  text-align: left;
  border-bottom: 1px solid var(--border);
}

th {
  font-weight: 600;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  color: var(--text-secondary);
}

tr:last-child td {
  border-bottom: none;
}

.empty-state {
  text-align: center;
  padding: 48px 24px;
  color: var(--text-secondary);
}

.empty-state p {
  margin-bottom: 16px;
}