*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{
  --primary:#2563eb;--primary-dark:#1d4ed8;--bg:#fff;--bg-secondary:#f8fafc;
  --text:#1e293b;--text-secondary:#64748b;--border:#e2e8f0;--radius:8px;
  --shadow:0 1px 3px rgba(0,0,0,.1);--max-width:1200px;
}
@media(prefers-color-scheme:dark){
  :root{--bg:#0f172a;--bg-secondary:#1e293b;--text:#e2e8f0;--text-secondary:#94a3b8;--border:#334155}
}
body{font-family:system-ui,-apple-system,sans-serif;line-height:1.6;color:var(--text);background:var(--bg)}
a{color:var(--primary);text-decoration:none}
a:hover{text-decoration:underline}
img{max-width:100%;height:auto}
.container{max-width:var(--max-width);margin:0 auto;padding:0 20px}
.site-header{background:var(--primary);color:#fff;padding:15px 0}
.site-header .container{display:flex;align-items:center;gap:20px;flex-wrap:wrap}
.site-logo{color:#fff;font-size:1.5rem;font-weight:700;text-decoration:none}
.site-nav{display:flex;gap:15px}
.site-nav a{color:rgba(255,255,255,.9);text-decoration:none}
.site-nav a:hover{color:#fff}
.site-search{margin-left:auto;display:flex}
.site-search input{padding:6px 12px;border:none;border-radius:var(--radius) 0 0 var(--radius);font-size:.9rem}
.site-search button{padding:6px 12px;border:none;background:var(--primary-dark);color:#fff;border-radius:0 var(--radius) var(--radius) 0;cursor:pointer}
.site-main{padding:40px 0;min-height:60vh}
.site-footer{background:var(--bg-secondary);border-top:1px solid var(--border);padding:30px 0;text-align:center;color:var(--text-secondary)}
.footer-nav{display:flex;justify-content:center;gap:20px;margin-bottom:10px}
.hero{text-align:center;padding:60px 0 40px}
.hero h1{font-size:2.5rem;margin-bottom:10px}
.hero p{font-size:1.2rem;color:var(--text-secondary)}
.posts-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(350px,1fr));gap:30px;margin-top:30px}
.post-card{background:var(--bg-secondary);border:1px solid var(--border);border-radius:var(--radius);padding:25px}
.post-card h3{margin-bottom:8px}
.post-card time{color:var(--text-secondary);font-size:.9rem}
.post-card p{margin:10px 0;color:var(--text-secondary)}
.read-more{font-weight:600}
.posts-list{display:flex;flex-direction:column;gap:30px}
.post-item{padding:25px 0;border-bottom:1px solid var(--border)}
.post-item h2{margin-bottom:5px}
.post-meta{color:var(--text-secondary);font-size:.9rem;margin-bottom:10px}
.post-single h1{margin-bottom:15px}
.post-meta{color:var(--text-secondary);font-size:.9rem;margin-bottom:20px}
.post-body{line-height:1.8}
.post-tags{margin-top:30px;padding-top:15px;border-top:1px solid var(--border)}
.post-tags a{display:inline-block;padding:3px 10px;background:var(--bg-secondary);border-radius:var(--radius);margin:3px;font-size:.9rem}
.related-posts{margin-top:40px;padding-top:20px;border-top:1px solid var(--border)}
.pagination{display:flex;justify-content:center;gap:8px;margin-top:30px}
.pagination a,.pagination span{padding:8px 14px;border-radius:var(--radius);border:1px solid var(--border)}
.pagination .current{background:var(--primary);color:#fff;border-color:var(--primary)}
.search-form{display:flex;gap:10px;margin:20px 0}
.search-form input{flex:1;padding:10px;border:1px solid var(--border);border-radius:var(--radius);font-size:1rem}
.search-form button,.btn{padding:10px 20px;background:var(--primary);color:#fff;border:none;border-radius:var(--radius);cursor:pointer;font-size:1rem}
.btn:hover{background:var(--primary-dark);text-decoration:none}
.alert{padding:12px 20px;border-radius:var(--radius);margin-bottom:20px}
.alert-success{background:#dcfce7;color:#166534;border:1px solid #bbf7d0}
.alert-error{background:#fee2e2;color:#991b1b;border:1px solid #fecaca}
.alert-info{background:#dbeafe;color:#1e40af;border:1px solid #bfdbfe}
.alert-warning{background:#fef9c3;color:#854d0e;border:1px solid #fde68a}
.contact-form .form-group{margin-bottom:20px}
.contact-form label{display:block;margin-bottom:5px;font-weight:600}
.contact-form input,.contact-form textarea{width:100%;padding:10px;border:1px solid var(--border);border-radius:var(--radius);font-size:1rem}
.error-page{text-align:center;padding:60px 0}
.error-page h1{font-size:6rem;color:var(--text-secondary)}
.preview-notice{background:#fef9c3;padding:15px;border-radius:var(--radius);text-align:center;margin-top:20px}
.page-body{line-height:1.8}
.page-single h1{margin-bottom:20px}
.category-section h1,.tag-section h1{margin-bottom:20px}