:root { --primary: #2563eb; --text: #333; }
* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: -apple-system, 'Segoe UI', system-ui, sans-serif; color: var(--text); line-height: 1.6; }
header { padding: 1rem; box-shadow: 0 2px 4px rgba(0,0,0,0.1); }
nav { display: flex; justify-content: space-between; align-items: center; max-width: 1000px; margin: 0 auto; }
nav ul { display: flex; list-style: none; gap: 1rem; }
nav a { text-decoration: none; color: var(--text); }
main { max-width: 1000px; margin: 2rem auto; padding: 0 1rem; }
.card { border: 1px solid #ddd; padding: 1rem; border-radius: 8px; margin-bottom: 1rem; box-shadow: 0 2px 4px rgba(0,0,0,0.05); }
.card h3 { margin-bottom: .5rem; }
.card h3 a { color: var(--primary); text-decoration: none; }
.banner { text-align: center; padding: 3rem 1rem; background: #f8faff; border-radius: 12px; margin-bottom: 2rem; }
.banner h1 { font-size: 2rem; color: var(--primary); margin-bottom: .5rem; }
.articles { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 1rem; }
footer { text-align: center; padding: 2rem; font-size: .9rem; color: #888; }

.admin-page .admin-wrapper { display: flex; min-height: 100vh; }
.admin-page .sidebar { width: 200px; background: #1e293b; color: #fff; padding: 1rem; min-height: 100vh; }
.admin-page .sidebar a { display: block; color: #94a3b8; text-decoration: none; padding: .6rem .8rem; border-radius: 6px; margin-bottom: 2px; }
.admin-page .sidebar a:hover { background: #334155; color: #fff; }
.admin-page .content { flex: 1; padding: 1.5rem; background: #f8fafc; }
.admin-page .stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1rem; margin-bottom: 1.5rem; }
.admin-page .stats .card { background: #fff; padding: 1.2rem; border-radius: 8px; border: 1px solid #e2e8f0; text-align: center; font-size: 1.1rem; }
.admin-page .stats .card span { display: block; font-size: 1.8rem; font-weight: 700; color: var(--primary); margin-bottom: 4px; }
.admin-page table { width: 100%; border-collapse: collapse; background: #fff; border-radius: 8px; overflow: hidden; }
.admin-page th, .admin-page td { border: 1px solid #e2e8f0; padding: .6rem .8rem; text-align: left; font-size: .9rem; }
.admin-page th { background: #f1f5f9; font-weight: 600; }
.admin-page button { padding: .4rem .8rem; border: 1px solid var(--primary); background: var(--primary); color: #fff; border-radius: 4px; cursor: pointer; font-size: .85rem; }
.admin-page button + button { margin-left: 4px; }
.admin-page button:nth-child(2) { background: #ef4444; border-color: #ef4444; }
.admin-page .modal { display: none; position: fixed; inset: 0; background: rgba(0,0,0,.4); justify-content: center; align-items: center; z-index: 100; }
.admin-page .modal-content { background: #fff; padding: 2rem; border-radius: 10px; min-width: 400px; max-width: 600px; }
.admin-page .modal-content h2 { margin-bottom: 1rem; }
.admin-page .modal-content input,
.admin-page .modal-content textarea,
.admin-page .modal-content select { width: 100%; padding: .5rem; margin-bottom: .8rem; border: 1px solid #d1d5db; border-radius: 4px; font-size: .9rem; }
.admin-page .modal-content textarea { min-height: 80px; }

.login-page { display: flex; justify-content: center; align-items: center; height: 100vh; background: #f1f5f9; }
.login-container { background: #fff; padding: 2.5rem; border-radius: 12px; box-shadow: 0 4px 12px rgba(0,0,0,.08); width: 360px; }
.login-container h2 { text-align: center; margin-bottom: 1.5rem; color: var(--primary); }
.login-container input { width: 100%; padding: .7rem; margin-bottom: 1rem; border: 1px solid #d1d5db; border-radius: 6px; font-size: .9rem; }
.login-container button { width: 100%; padding: .7rem; background: var(--primary); color: #fff; border: none; border-radius: 6px; font-size: 1rem; cursor: pointer; }

@media (max-width: 768px) {
  .admin-page .admin-wrapper { flex-direction: column; }
  .admin-page .sidebar { width: 100%; min-height: auto; }
  .admin-page .stats { grid-template-columns: 1fr 1fr; }
  .articles { grid-template-columns: 1fr; }
  nav { flex-direction: column; gap: .5rem; }
}
@media (max-width: 480px) {
  .admin-page .stats { grid-template-columns: 1fr; }
  .admin-page .modal-content { min-width: auto; margin: 0 1rem; }
}