:root {
  --sidebar: #4A0814;
  --sidebar-text: #F5C6CE;
  --sidebar-active: #fff;
  --primary: #C8102E;
  --border: #e2e8f0;
  --bg: #f1f5f9;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

body.admin-body {
  font-family: 'Inter', system-ui, sans-serif;
  background: var(--bg);
  color: #1e293b;
  display: flex;
  min-height: 100vh;
}

.admin-sidebar {
  width: 240px; background: var(--sidebar); color: var(--sidebar-text);
  flex-shrink: 0; padding: 1.5rem 0; position: sticky; top: 0; height: 100vh; overflow-y: auto;
}
.sidebar-brand { color: #fff; font-weight: 700; font-size: 1.1rem; padding: 0 1.25rem 1.5rem; }
.admin-sidebar nav { display: flex; flex-direction: column; }
.admin-sidebar nav a {
  color: var(--sidebar-text); text-decoration: none; padding: 0.6rem 1.25rem;
  font-size: 0.875rem; transition: background 0.15s;
}
.admin-sidebar nav a:hover { background: rgba(255,255,255,0.08); color: var(--sidebar-active); }

.admin-main { flex: 1; padding: 2rem; overflow-x: auto; }
.admin-main h1 { font-size: 1.75rem; margin-bottom: 1.5rem; }
.admin-main h2 { font-size: 1.25rem; margin: 1.5rem 0 1rem; }

.login-wrap { display: flex; align-items: center; justify-content: center; min-height: 100vh; width: 100%; padding: 1.5rem; }
.admin-login-body {
  min-height: 100vh;
  background: linear-gradient(135deg, #4A0814 0%, #7A0C1E 45%, #C8102E 100%);
}
.login-form {
  background: #fff; padding: 2.5rem; border-radius: 12px; box-shadow: 0 4px 24px rgba(0,0,0,0.1);
  width: 100%; max-width: 400px;
}
.login-form h1 { text-align: center; margin-bottom: 0.5rem; }
.login-subtitle { text-align: center; color: #64748b; margin-bottom: 1.5rem; font-size: 0.95rem; }
.login-submit { width: 100%; justify-content: center; margin-top: 0.5rem; }
.login-back { text-align: center; margin-top: 1.25rem; font-size: 0.875rem; }
.login-back a { color: #64748b; text-decoration: none; }
.login-back a:hover { color: var(--primary); }

.stats-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); gap: 1rem; margin-bottom: 2rem; }
.stat-card {
  background: #fff; border-radius: 10px; padding: 1.25rem; border: 1px solid var(--border);
  display: flex; flex-direction: column; gap: 0.25rem;
}
.stat-num { font-size: 2rem; font-weight: 700; color: var(--primary); }

.admin-two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 2rem; }
.admin-table { width: 100%; border-collapse: collapse; background: #fff; border-radius: 10px; overflow: hidden; border: 1px solid var(--border); }
.admin-table-wrap { overflow-x: auto; margin-bottom: 1.5rem; }
.admin-table th, .admin-table td { padding: 0.75rem 1rem; text-align: left; border-bottom: 1px solid var(--border); font-size: 0.875rem; }
.admin-table th { background: #f8fafc; font-weight: 600; }
.admin-table tr.unread { background: #fef2f2; }

.admin-form { background: #fff; padding: 1.5rem; border-radius: 10px; border: 1px solid var(--border); margin-bottom: 1.5rem; }
.form-group { margin-bottom: 1rem; }
.form-group label { display: block; font-weight: 500; margin-bottom: 0.35rem; font-size: 0.875rem; }
.form-group input, .form-group select, .form-group textarea {
  width: 100%; padding: 0.6rem 0.85rem; border: 1px solid var(--border); border-radius: 8px; font-family: inherit;
}
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.form-grid .full-width { grid-column: 1 / -1; }

.btn {
  display: inline-flex; padding: 0.6rem 1.1rem; border-radius: 8px; font-weight: 600;
  font-size: 0.875rem; border: none; cursor: pointer; text-decoration: none;
  background: #e2e8f0; color: #1e293b;
}
.btn-primary { background: var(--primary); color: #fff; }
.btn-sm { padding: 0.35rem 0.75rem; font-size: 0.8rem; }
.btn-danger { background: #fee2e2; color: #991b1b; }

.inline-form { display: flex; gap: 0.5rem; flex-wrap: wrap; align-items: center; margin: 1rem 0; }
.inline-form input, .inline-form select { padding: 0.5rem 0.75rem; border: 1px solid var(--border); border-radius: 8px; }

.admin-list { list-style: none; background: #fff; border: 1px solid var(--border); border-radius: 10px; padding: 0.5rem 0; margin-bottom: 1rem; }
.admin-list li { padding: 0.6rem 1rem; border-bottom: 1px solid var(--border); display: flex; justify-content: space-between; align-items: center; gap: 1rem; }
.admin-list li:last-child { border-bottom: none; }

.admin-flash { padding: 0.75rem 1rem; border-radius: 8px; margin-bottom: 1rem; }
.admin-flash-success { background: #dcfce7; color: #166534; }
.admin-flash-error { background: #fee2e2; color: #991b1b; }

.detail-list { background: #fff; border: 1px solid var(--border); border-radius: 10px; padding: 1.5rem; margin-bottom: 1.5rem; }
.detail-list dt { font-weight: 600; margin-top: 0.75rem; font-size: 0.85rem; color: #64748b; }
.detail-list dd { margin-left: 0; }

.pricing-admin-section { background: #fff; border: 1px solid var(--border); border-radius: 10px; padding: 1rem; margin-bottom: 1rem; }

hr { border: none; border-top: 1px solid var(--border); margin: 1.5rem 0; }

.admin-client-thumb {
  width: 72px; height: 40px; object-fit: contain; display: block;
  border: 1px solid var(--border); border-radius: 6px; padding: 0.25rem; background: #fff;
}
.admin-client-placeholder {
  display: inline-grid; place-items: center; width: 72px; height: 40px;
  border: 1px dashed var(--border); border-radius: 6px; font-weight: 700; color: #64748b;
}
.client-add-form { margin-top: 1rem; max-width: 640px; }

@media (max-width: 768px) {
  body.admin-body { flex-direction: column; }
  .admin-sidebar { width: 100%; height: auto; position: static; }
  .admin-two-col, .form-grid { grid-template-columns: 1fr; }
}