@import url('https://fonts.googleapis.com/css2?family=Syne:wght@400;600;700;800&family=DM+Sans:ital,wght@0,300;0,400;0,500;1,300&family=JetBrains+Mono:wght@400;500&display=swap');

:root {
  --bg:#0a0a0f;--bg2:#111118;--bg3:#1a1a24;--border:#2a2a3a;
  --text:#e8e8f0;--text2:#9090aa;--accent:#00d4aa;--accent2:#7c6af5;
  --card-bg:#13131c;--card-hover:#1e1e2e;--shadow:0 4px 24px rgba(0,0,0,0.4);
  --radius:12px;--font-head:'Syne',sans-serif;--font-body:'DM Sans',sans-serif;
  --font-code:'JetBrains Mono',monospace;--transition:0.3s cubic-bezier(0.4,0,0.2,1);
}
[data-theme="light"] {
  --bg:#f8f8fc;--bg2:#ffffff;--bg3:#f0f0f8;--border:#e0e0ee;
  --text:#1a1a2e;--text2:#606080;--card-bg:#ffffff;--card-hover:#f5f5ff;
  --shadow:0 4px 24px rgba(0,0,0,0.08);
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{background:var(--bg);color:var(--text);font-family:var(--font-body);font-size:16px;line-height:1.7;transition:background var(--transition),color var(--transition);min-height:100vh}
::-webkit-scrollbar{width:6px}
::-webkit-scrollbar-track{background:var(--bg)}
::-webkit-scrollbar-thumb{background:var(--accent);border-radius:3px}
::selection{background:var(--accent);color:#000}

.navbar{position:sticky;top:0;z-index:100;background:rgba(10,10,15,0.85);backdrop-filter:blur(20px);border-bottom:1px solid var(--border);padding:0 2rem;height:64px;display:flex;align-items:center;justify-content:space-between;transition:background var(--transition)}
[data-theme="light"] .navbar{background:rgba(248,248,252,0.85)}
.navbar-brand{font-family:var(--font-head);font-size:1.4rem;font-weight:800;color:var(--text);text-decoration:none;display:flex;align-items:center;gap:0.5rem}
.navbar-brand span{background:linear-gradient(135deg,var(--accent),var(--accent2));-webkit-background-clip:text;-webkit-text-fill-color:transparent}
.navbar-links{display:flex;align-items:center;gap:1.5rem;list-style:none}
.navbar-links a{color:var(--text2);text-decoration:none;font-size:0.9rem;font-weight:500;transition:color var(--transition)}
.navbar-links a:hover{color:var(--text)}
.navbar-actions{display:flex;align-items:center;gap:0.75rem}
.theme-toggle{background:var(--bg3);border:1px solid var(--border);border-radius:50px;padding:0.4rem 0.8rem;cursor:pointer;font-size:1rem;transition:all var(--transition);color:var(--text)}
.theme-toggle:hover{border-color:var(--accent);transform:scale(1.05)}
.search-btn{background:var(--bg3);border:1px solid var(--border);border-radius:8px;padding:0.4rem 1rem;cursor:pointer;font-size:0.85rem;color:var(--text2);font-family:var(--font-body);display:flex;align-items:center;gap:0.5rem;transition:all var(--transition);min-width:160px}
.search-btn:hover{border-color:var(--accent);color:var(--text)}
.search-btn kbd{background:var(--border);border-radius:4px;padding:0.1rem 0.4rem;font-size:0.75rem;margin-left:auto;font-family:var(--font-code)}

.search-overlay{position:fixed;inset:0;background:rgba(0,0,0,0.8);backdrop-filter:blur(8px);z-index:1000;display:none;align-items:flex-start;justify-content:center;padding-top:10vh}
.search-overlay.active{display:flex}
.search-modal{background:var(--bg2);border:1px solid var(--border);border-radius:16px;width:90%;max-width:600px;overflow:hidden;box-shadow:0 24px 64px rgba(0,0,0,0.5)}
.search-input-wrap{display:flex;align-items:center;padding:1rem 1.5rem;border-bottom:1px solid var(--border);gap:0.75rem}
#search-input{flex:1;background:none;border:none;outline:none;color:var(--text);font-size:1.1rem;font-family:var(--font-body)}
#search-input::placeholder{color:var(--text2)}
.search-close{background:var(--bg3);border:none;border-radius:6px;padding:0.3rem 0.6rem;color:var(--text2);cursor:pointer;font-size:0.8rem;font-family:var(--font-code)}
#search-results{max-height:400px;overflow-y:auto;padding:0.5rem}
.search-result-item{display:block;padding:0.75rem 1rem;border-radius:8px;text-decoration:none;color:var(--text);transition:background var(--transition);margin-bottom:2px}
.search-result-item:hover{background:var(--bg3)}
.search-result-item .result-title{font-weight:600;font-size:0.95rem}
.search-result-item .result-meta{font-size:0.8rem;color:var(--text2);margin-top:0.2rem}
.search-empty{padding:2rem;text-align:center;color:var(--text2);font-size:0.9rem}

.hero{padding:5rem 2rem 4rem;text-align:center;position:relative;overflow:hidden}
.hero::before{content:'';position:absolute;top:-50%;left:50%;transform:translateX(-50%);width:800px;height:400px;background:radial-gradient(ellipse,rgba(0,212,170,0.12) 0%,transparent 70%);pointer-events:none}
.hero-badge{display:inline-flex;align-items:center;gap:0.5rem;background:rgba(0,212,170,0.1);border:1px solid rgba(0,212,170,0.3);border-radius:50px;padding:0.4rem 1rem;font-size:0.8rem;color:var(--accent);font-weight:600;margin-bottom:1.5rem;animation:pulse 2s infinite}
.hero h1{font-family:var(--font-head);font-size:clamp(2.5rem,6vw,4.5rem);font-weight:800;line-height:1.1;margin-bottom:1.5rem;background:linear-gradient(135deg,var(--text) 0%,var(--accent) 50%,var(--accent2) 100%);-webkit-background-clip:text;-webkit-text-fill-color:transparent;animation:gradientShift 4s ease infinite;background-size:200% auto}
.hero p{font-size:1.15rem;color:var(--text2);max-width:500px;margin:0 auto 2rem}
.hero-stats{display:flex;justify-content:center;gap:3rem;flex-wrap:wrap}
.hero-stat .num{font-family:var(--font-head);font-size:1.8rem;font-weight:800;color:var(--accent)}
.hero-stat .label{font-size:0.8rem;color:var(--text2);text-transform:uppercase;letter-spacing:0.1em}

.newsletter-bar{background:linear-gradient(135deg,rgba(0,212,170,0.1),rgba(124,106,245,0.1));border:1px solid var(--border);border-radius:var(--radius);padding:2rem;margin:0 0 3rem;display:flex;align-items:center;gap:2rem;flex-wrap:wrap}
.newsletter-text h3{font-family:var(--font-head);font-size:1.1rem;font-weight:700;margin-bottom:0.25rem}
.newsletter-text p{font-size:0.85rem;color:var(--text2)}
.newsletter-form{display:flex;gap:0.5rem;flex:1;min-width:280px}
.newsletter-form input{flex:1;background:var(--bg3);border:1px solid var(--border);border-radius:8px;padding:0.6rem 1rem;color:var(--text);font-family:var(--font-body);font-size:0.9rem;outline:none;transition:border-color var(--transition)}
.newsletter-form input:focus{border-color:var(--accent)}
.newsletter-form input::placeholder{color:var(--text2)}
.btn-subscribe{background:var(--accent);color:#000;border:none;border-radius:8px;padding:0.6rem 1.2rem;font-weight:700;font-size:0.9rem;cursor:pointer;font-family:var(--font-body);transition:all var(--transition);white-space:nowrap}
.btn-subscribe:hover{transform:translateY(-2px);box-shadow:0 8px 20px rgba(0,212,170,0.3)}

.container{max-width:1200px;margin:0 auto;padding:0 2rem}
.layout-grid{display:grid;grid-template-columns:1fr 300px;gap:3rem;align-items:start}
.section-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:2rem;padding-bottom:1rem;border-bottom:1px solid var(--border)}
.section-title{font-family:var(--font-head);font-size:1.3rem;font-weight:700;display:flex;align-items:center;gap:0.5rem}
.section-title .dot{width:8px;height:8px;background:var(--accent);border-radius:50%;animation:pulse 2s infinite}

.posts-grid{display:grid;gap:1.5rem}
.post-card{background:var(--card-bg);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;transition:all var(--transition);animation:fadeInUp 0.5s ease both}
.post-card:hover{border-color:var(--accent);transform:translateY(-4px);box-shadow:var(--shadow),0 0 0 1px rgba(0,212,170,0.2);background:var(--card-hover)}
.post-card-image{width:100%;height:200px;object-fit:cover;display:block}
.post-card-body{padding:1.5rem}
.post-card-meta{display:flex;align-items:center;gap:0.75rem;margin-bottom:0.75rem;flex-wrap:wrap}
.post-category{background:rgba(0,212,170,0.15);color:var(--accent);border-radius:50px;padding:0.2rem 0.75rem;font-size:0.75rem;font-weight:600;text-transform:uppercase;letter-spacing:0.05em;text-decoration:none;transition:background var(--transition)}
.post-category:hover{background:rgba(0,212,170,0.25)}
.post-date{font-size:0.8rem;color:var(--text2);font-family:var(--font-code)}
.post-card h2{font-family:var(--font-head);font-size:1.2rem;font-weight:700;line-height:1.3;margin-bottom:0.75rem}
.post-card h2 a{color:var(--text);text-decoration:none;transition:color var(--transition)}
.post-card h2 a:hover{color:var(--accent)}
.post-excerpt{color:var(--text2);font-size:0.9rem;line-height:1.6;margin-bottom:1rem;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.post-card-footer{display:flex;align-items:center;justify-content:space-between;padding-top:1rem;border-top:1px solid var(--border)}
.post-tags{display:flex;gap:0.4rem;flex-wrap:wrap}
.post-tag{background:var(--bg3);color:var(--text2);border-radius:4px;padding:0.15rem 0.5rem;font-size:0.75rem;font-family:var(--font-code);text-decoration:none;transition:all var(--transition)}
.post-tag:hover{color:var(--accent);background:rgba(0,212,170,0.1)}
.read-more{color:var(--accent);text-decoration:none;font-size:0.85rem;font-weight:600;display:flex;align-items:center;gap:0.3rem;transition:gap var(--transition);white-space:nowrap}
.read-more:hover{gap:0.6rem}
.post-card.featured{grid-column:1/-1;grid-template-columns:1fr 1fr}
.post-card.featured .post-card-image{height:100%;min-height:240px}

.sidebar{position:sticky;top:80px;display:flex;flex-direction:column;gap:1.5rem}
.sidebar-widget{background:var(--card-bg);border:1px solid var(--border);border-radius:var(--radius);padding:1.5rem}
.widget-title{font-family:var(--font-head);font-size:0.9rem;font-weight:700;text-transform:uppercase;letter-spacing:0.1em;color:var(--text2);margin-bottom:1rem;display:flex;align-items:center;gap:0.5rem}
.category-list{list-style:none;display:flex;flex-direction:column;gap:0.5rem}
.category-list li a{display:flex;align-items:center;justify-content:space-between;color:var(--text);text-decoration:none;font-size:0.9rem;padding:0.5rem 0.75rem;border-radius:8px;transition:all var(--transition)}
.category-list li a:hover{background:var(--bg3);color:var(--accent);padding-left:1rem}
.category-count{background:var(--bg3);border-radius:50px;padding:0.1rem 0.5rem;font-size:0.75rem;font-family:var(--font-code);color:var(--text2)}
.tags-cloud{display:flex;flex-wrap:wrap;gap:0.5rem}
.trending-list{list-style:none;display:flex;flex-direction:column;gap:0.75rem}
.trending-list li{display:flex;gap:0.75rem;align-items:flex-start}
.trending-num{font-family:var(--font-head);font-size:1.2rem;font-weight:800;color:var(--border);line-height:1.2;min-width:24px}
.trending-list li:first-child .trending-num{color:var(--accent)}
.trending-list li:nth-child(2) .trending-num{color:var(--accent2)}
.trending-list a{color:var(--text);text-decoration:none;font-size:0.875rem;font-weight:500;line-height:1.4;transition:color var(--transition)}
.trending-list a:hover{color:var(--accent)}

.pagination{display:flex;justify-content:center;align-items:center;gap:0.5rem;margin:3rem 0;flex-wrap:wrap}
.pagination a,.pagination span{background:var(--card-bg);border:1px solid var(--border);border-radius:8px;padding:0.5rem 1rem;color:var(--text);text-decoration:none;font-size:0.9rem;transition:all var(--transition)}
.pagination a:hover,.pagination .current{background:var(--accent);color:#000;border-color:var(--accent)}

.post-header{padding:4rem 0 2rem;border-bottom:1px solid var(--border);margin-bottom:3rem}
.post-hero-img{width:100%;max-height:400px;object-fit:cover;border-radius:var(--radius);margin-bottom:2rem}
.post-title{font-family:var(--font-head);font-size:clamp(1.8rem,4vw,3rem);font-weight:800;line-height:1.2;margin-bottom:1rem}
.post-description{font-size:1.1rem;color:var(--text2);margin-bottom:1.5rem;line-height:1.6}
.post-info{display:flex;align-items:center;gap:1.5rem;flex-wrap:wrap;font-size:0.875rem;color:var(--text2)}
.post-info .author{display:flex;align-items:center;gap:0.5rem;font-weight:600;color:var(--text)}

.post-content{max-width:720px;font-size:1.05rem;line-height:1.8}
.post-content h2{font-family:var(--font-head);font-size:1.6rem;font-weight:700;margin:2.5rem 0 1rem;border-bottom:1px solid var(--border);padding-bottom:0.5rem}
.post-content h3{font-family:var(--font-head);font-size:1.2rem;font-weight:700;margin:2rem 0 0.75rem;color:var(--accent)}
.post-content p{margin-bottom:1.5rem}
.post-content a{color:var(--accent);text-decoration:underline;text-decoration-style:dotted}
.post-content ul,.post-content ol{margin:1rem 0 1.5rem 1.5rem;display:flex;flex-direction:column;gap:0.4rem}
.post-content blockquote{border-left:4px solid var(--accent);background:rgba(0,212,170,0.05);padding:1rem 1.5rem;margin:1.5rem 0;border-radius:0 8px 8px 0;font-style:italic;color:var(--text2)}
.post-content code{font-family:var(--font-code);background:var(--bg3);border:1px solid var(--border);padding:0.15rem 0.4rem;border-radius:4px;font-size:0.875em;color:var(--accent)}
.post-content pre{background:var(--bg2);border:1px solid var(--border);border-radius:var(--radius);padding:1.5rem;overflow-x:auto;margin:1.5rem 0;position:relative}
.post-content pre code{background:none;border:none;padding:0;color:var(--text);font-size:0.9rem}

.share-bar{background:var(--card-bg);border:1px solid var(--border);border-radius:var(--radius);padding:1.5rem;margin:3rem 0;display:flex;align-items:center;gap:1rem;flex-wrap:wrap}
.share-bar h4{font-family:var(--font-head);font-size:0.9rem;font-weight:700;color:var(--text2);text-transform:uppercase;letter-spacing:0.1em;margin-right:auto}
.share-btn{display:flex;align-items:center;gap:0.4rem;padding:0.5rem 1rem;border-radius:8px;font-size:0.85rem;font-weight:600;text-decoration:none;transition:all var(--transition);border:1px solid var(--border);color:var(--text);background:var(--bg3);cursor:pointer;font-family:var(--font-body)}
.share-btn:hover{transform:translateY(-2px);box-shadow:var(--shadow)}
.share-btn.twitter:hover{border-color:#1da1f2;color:#1da1f2}
.share-btn.linkedin:hover{border-color:#0077b5;color:#0077b5}
.share-btn.copy:hover{border-color:var(--accent);color:var(--accent)}

.comments-section{margin:3rem 0;padding-top:2rem;border-top:1px solid var(--border)}
.comments-title{font-family:var(--font-head);font-size:1.4rem;font-weight:700;margin-bottom:1.5rem}

footer{background:var(--bg2);border-top:1px solid var(--border);padding:3rem 2rem;margin-top:4rem}
.footer-grid{max-width:1200px;margin:0 auto;display:grid;grid-template-columns:2fr 1fr 1fr;gap:3rem;margin-bottom:2rem}
.footer-brand p{color:var(--text2);font-size:0.9rem;margin-top:0.75rem;max-width:280px;line-height:1.6}
.footer-col h4{font-family:var(--font-head);font-weight:700;font-size:0.85rem;text-transform:uppercase;letter-spacing:0.1em;color:var(--text2);margin-bottom:1rem}
.footer-col ul{list-style:none;display:flex;flex-direction:column;gap:0.5rem}
.footer-col ul a{color:var(--text2);text-decoration:none;font-size:0.875rem;transition:color var(--transition)}
.footer-col ul a:hover{color:var(--accent)}
.footer-bottom{max-width:1200px;margin:0 auto;padding-top:2rem;border-top:1px solid var(--border);display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:1rem}
.footer-bottom p{color:var(--text2);font-size:0.85rem}
.footer-links{display:flex;gap:1.5rem}
.footer-links a{color:var(--text2);text-decoration:none;font-size:0.85rem;transition:color var(--transition)}
.footer-links a:hover{color:var(--accent)}

#reading-progress{position:fixed;top:0;left:0;height:3px;background:linear-gradient(90deg,var(--accent),var(--accent2));z-index:200;transition:width 0.1s linear;width:0%}
#back-to-top{position:fixed;bottom:2rem;right:2rem;background:var(--accent);color:#000;border:none;border-radius:50%;width:44px;height:44px;font-size:1.2rem;cursor:pointer;display:none;align-items:center;justify-content:center;transition:all var(--transition);z-index:100;box-shadow:0 4px 12px rgba(0,212,170,0.4)}
#back-to-top.visible{display:flex}
#back-to-top:hover{transform:translateY(-3px)}

.categories-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:1rem;margin-bottom:3rem}
.category-card{background:var(--card-bg);border:1px solid var(--border);border-radius:var(--radius);padding:1.5rem;text-decoration:none;transition:all var(--transition);display:flex;flex-direction:column;gap:0.5rem}
.category-card:hover{border-color:var(--accent);transform:translateY(-3px)}
.category-card .cat-icon{font-size:2rem}
.category-card .cat-name{font-family:var(--font-head);font-weight:700;color:var(--text);font-size:1rem}
.category-card .cat-count{font-size:0.8rem;color:var(--text2)}

@keyframes pulse{0%,100%{opacity:1}50%{opacity:0.7}}
@keyframes gradientShift{0%{background-position:0% center}50%{background-position:100% center}100%{background-position:0% center}}
@keyframes fadeInUp{from{transform:translateY(20px);opacity:0}to{transform:translateY(0);opacity:1}}
@keyframes fadeIn{from{opacity:0}to{opacity:1}}

.post-card:nth-child(1){animation-delay:0.05s}
.post-card:nth-child(2){animation-delay:0.1s}
.post-card:nth-child(3){animation-delay:0.15s}
.post-card:nth-child(4){animation-delay:0.2s}

@media(max-width:900px){
  .layout-grid{grid-template-columns:1fr}
  .sidebar{position:static}
  .post-card.featured{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:600px){
  .navbar-links{display:none}
  .hero{padding:3rem 1rem 2rem}
  .footer-grid{grid-template-columns:1fr}
  .container{padding:0 1rem}
}