:root{--primary:#2563eb;--primary-2:#1d4ed8;--accent:#f59e0b;--dark:#0f172a;--gray:#64748b;--light:#f8fafc;--border:#e2e8f0;--radius:14px}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:'Plus Jakarta Sans',system-ui,-apple-system,sans-serif;color:var(--dark);background:#fff;line-height:1.6;-webkit-font-smoothing:antialiased}
a{color:var(--primary);text-decoration:none;transition:.2s}
a:hover{color:var(--primary-2)}
img{max-width:100%;height:auto;display:block}
.container{max-width:1200px;margin:0 auto;padding:0 20px}
.narrow{max-width:820px;margin:0 auto}
.narrow-sm{max-width:480px;margin:0 auto}
h1{font-size:2.5rem;font-weight:800;line-height:1.2;letter-spacing:-.02em}
h2{font-size:1.75rem;font-weight:700;margin-bottom:8px;letter-spacing:-.01em}
h3{font-size:1.15rem;font-weight:700;margin-bottom:6px}
.muted{color:var(--gray)}
.small{font-size:.875rem}
.center{text-align:center}
.lead{font-size:1.15rem;color:var(--gray);margin:12px 0}

/* HEADER */
.site-header{background:#fff;border-bottom:1px solid var(--border);position:sticky;top:0;z-index:50;backdrop-filter:blur(10px);background:rgba(255,255,255,.92)}
.nav-wrap{display:flex;justify-content:space-between;align-items:center;height:70px}
.logo{display:flex;align-items:center;gap:10px;font-weight:800;font-size:1.2rem;color:var(--dark)}
.logo-mark{background:linear-gradient(135deg,#2563eb,#7c3aed);color:#fff;padding:6px 10px;border-radius:8px;font-size:.9rem;letter-spacing:-.5px}
.logo-text span{color:var(--primary)}
.main-nav{display:flex;align-items:center;gap:8px}
.main-nav a{padding:8px 14px;font-size:.95rem;font-weight:500;color:#334155;border-radius:8px}
.main-nav a:hover{background:var(--light);color:var(--dark)}
.main-nav a.btn-primary:hover{color:#fff;background:var(--primary-2)}
.menu-toggle{display:none;flex-direction:column;gap:5px;background:none;border:none;cursor:pointer;padding:8px}
.menu-toggle span{width:24px;height:2px;background:var(--dark);border-radius:2px}

/* BUTTONS */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;padding:10px 20px;border-radius:10px;font-weight:600;font-size:.95rem;border:1px solid transparent;cursor:pointer;transition:.2s;text-align:center;font-family:inherit}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{background:var(--primary-2);color:#fff;transform:translateY(-1px);box-shadow:0 8px 20px rgba(37,99,235,.25)}
.btn-outline{background:#fff;color:var(--dark);border:1px solid var(--border)}
.btn-outline:hover{border-color:var(--primary);color:var(--primary)}
.btn-lg{padding:14px 28px;font-size:1rem}
.btn-block{width:100%}

/* HERO */
.hero{padding:70px 0;background:linear-gradient(180deg,#f8fafc 0%,#fff 100%)}
.hero-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:50px;align-items:center}
.badge{display:inline-block;padding:6px 14px;background:#eff6ff;color:var(--primary);border-radius:100px;font-size:.85rem;font-weight:600;margin-bottom:16px}
.hero h1 .grad{background:linear-gradient(135deg,#2563eb,#7c3aed,#ec4899);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.hero-actions{display:flex;gap:12px;margin:24px 0;flex-wrap:wrap}
.hero-stats{display:flex;gap:32px;margin-top:24px}
.hero-stats>div{display:flex;flex-direction:column}
.hero-stats strong{font-size:1.6rem;color:var(--primary)}
.hero-stats span{font-size:.85rem;color:var(--gray)}
.hero-card{background:#0f172a;border-radius:16px;box-shadow:0 20px 60px rgba(15,23,42,.25);overflow:hidden}
.hero-card-head{background:#1e293b;padding:12px 16px;display:flex;gap:8px;align-items:center}
.dot{width:10px;height:10px;border-radius:50%}
.dot.red{background:#ef4444}.dot.yellow{background:#f59e0b}.dot.green{background:#10b981}
.filename{color:#94a3b8;font-size:.8rem;margin-left:8px;font-family:monospace}
.hero-code{color:#e2e8f0;padding:20px;font-family:monospace;font-size:.82rem;line-height:1.6;white-space:pre-wrap;overflow:auto;max-height:380px}

/* SECTION */
.section{padding:70px 0}
.section-head{text-align:center;margin-bottom:44px}
.section-head h1,.section-head h2{font-size:2rem}
.section-head p{color:var(--gray);font-size:1.05rem;margin-top:8px}

/* GRID & CARDS */
.grid{display:grid;gap:24px}
.grid-4{grid-template-columns:repeat(4,1fr)}
.grid-3{grid-template-columns:repeat(3,1fr)}
.card{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:28px;transition:.25s}
.card:hover{border-color:var(--primary);transform:translateY(-3px);box-shadow:0 12px 32px rgba(37,99,235,.1)}
.card-icon{font-size:2rem;margin-bottom:12px}
.card p{color:var(--gray);font-size:.95rem;margin:8px 0 14px}
.card a{font-weight:600;font-size:.9rem}

/* STEPS */
.steps{background:var(--light)}
.step{text-align:center;padding:20px}
.step-num{width:56px;height:56px;background:linear-gradient(135deg,#2563eb,#7c3aed);color:#fff;border-radius:16px;display:flex;align-items:center;justify-content:center;font-size:1.5rem;font-weight:800;margin:0 auto 16px}
.step p{color:var(--gray)}

/* CHIPS */
.chips{display:flex;flex-wrap:wrap;gap:10px;justify-content:center}
.chip{padding:10px 18px;background:var(--light);border-radius:100px;color:#334155;font-size:.9rem;font-weight:500;border:1px solid var(--border)}
.chip:hover{background:var(--primary);color:#fff;border-color:var(--primary)}

/* ARTICLE CARDS */
.article-card{background:#fff;border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;transition:.25s;display:block;color:inherit}
.article-card:hover{transform:translateY(-3px);box-shadow:0 12px 32px rgba(0,0,0,.08);border-color:var(--primary)}
.article-thumb{height:140px;background:linear-gradient(135deg,#6366f1,#a855f7)}
.article-body{padding:20px}
.tag{display:inline-block;padding:4px 10px;background:#eff6ff;color:var(--primary);border-radius:100px;font-size:.75rem;font-weight:600;margin-bottom:8px}
.article-body p{color:var(--gray);font-size:.9rem;margin:6px 0}
.meta{font-size:.8rem;color:#94a3b8}
.articles-preview .center{margin-top:32px}

/* CTA */
.cta-final{background:linear-gradient(135deg,#0f172a,#1e293b);color:#fff;text-align:center}
.cta-final h2{color:#fff}
.cta-box{background:linear-gradient(135deg,#2563eb,#7c3aed);color:#fff;text-align:center;padding:60px 40px;border-radius:20px}
.cta-box h2{color:#fff;margin-bottom:12px}
.cta-box .btn-primary{background:#fff;color:var(--primary)}
.cta-box .btn-primary:hover{background:#f1f5f9;color:var(--primary)}

/* ARTICLE DETAIL */
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:44px}
.article-main h1{font-size:2rem;margin:12px 0 8px}
.article-content{margin:24px 0;font-size:1.05rem;line-height:1.8}
.article-content h2{font-size:1.5rem;margin:28px 0 12px}
.article-content h3{font-size:1.15rem;margin:22px 0 8px}
.article-content p{margin-bottom:14px}
.article-content ul,.article-content ol{margin:12px 0 16px 24px}
.article-content li{margin:6px 0}
.article-content table{border-collapse:collapse;width:100%;margin:16px 0;font-size:.95rem}
.article-content td{border:1px solid var(--border);padding:10px}
.article-content tr:first-child td{background:var(--light);font-weight:600}
.breadcrumb{font-size:.85rem;color:var(--gray);margin-bottom:14px}
.share-box{margin:32px 0;padding:20px;background:var(--light);border-radius:12px}
.share-box .btn{margin-right:6px}
.related-sec{margin-top:40px;border-top:1px solid var(--border);padding-top:32px}
.ad-inline{margin:24px 0;text-align:center;min-height:90px}
.ad-box{text-align:center;min-height:200px}
.ad-label{font-size:.75rem;color:#94a3b8;text-transform:uppercase;letter-spacing:1px;margin-bottom:8px}

/* SIDEBAR */
.sidebar .widget{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:20px;margin-bottom:20px}
.sidebar h3{font-size:1rem;margin-bottom:12px}
.link-list{list-style:none}
.link-list li{margin:8px 0;padding-bottom:8px;border-bottom:1px solid var(--border)}
.link-list li:last-child{border:none;padding-bottom:0}
.link-list a{font-size:.9rem;color:#334155}
.link-list a:hover{color:var(--primary)}
.cta-widget{background:linear-gradient(135deg,#2563eb,#7c3aed);color:#fff;border:none}
.cta-widget h3{color:#fff}
.cta-widget p{color:#dbeafe;font-size:.9rem;margin:8px 0 14px}
.cta-widget .btn-primary{background:#fff;color:var(--primary)}

/* FORMS */
.gen-form{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:32px}
.form-group{margin-bottom:18px}
.form-group label{display:block;font-weight:600;margin-bottom:6px;font-size:.9rem}
.form-group input,.form-group select,.form-group textarea{width:100%;padding:12px 14px;border:1px solid var(--border);border-radius:10px;font-size:.95rem;font-family:inherit;background:#fff;transition:.2s}
.form-group input:focus,.form-group select:focus,.form-group textarea:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(37,99,235,.15)}
.alert{padding:12px 16px;border-radius:10px;background:#fef2f2;color:#b91c1c;margin-bottom:16px;font-size:.9rem}
.alert-success{background:#f0fdf4;color:#15803d}

/* SEARCH */
.search-form{display:flex;gap:10px;max-width:500px;margin:0 auto}
.search-form input{flex:1;padding:12px 16px;border:1px solid var(--border);border-radius:10px;font-size:.95rem;font-family:inherit}

/* PAGINATION */
.pagination{display:flex;gap:6px;justify-content:center;margin-top:40px}
.pagination a{display:inline-block;padding:8px 14px;border-radius:8px;background:#fff;border:1px solid var(--border);color:#334155;font-size:.9rem}
.pagination a.active{background:var(--primary);color:#fff;border-color:var(--primary)}

/* FAQ */
.faq-item{background:#fff;border:1px solid var(--border);border-radius:12px;padding:20px;margin-bottom:12px}
.faq-item summary{font-weight:700;cursor:pointer;font-size:1.05rem;list-style:none;position:relative;padding-right:24px}
.faq-item summary::after{content:'+';position:absolute;right:0;top:0;font-size:1.5rem;color:var(--primary);font-weight:400}
.faq-item[open] summary::after{content:'−'}
.faq-answer{margin-top:14px;color:#334155;line-height:1.7}

/* FOOTER */
.site-footer{background:#0f172a;color:#94a3b8;padding:60px 0 20px;margin-top:60px}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:40px;margin-bottom:40px}
.site-footer h4{color:#fff;font-size:1rem;margin-bottom:14px}
.site-footer a{display:block;color:#94a3b8;padding:4px 0;font-size:.9rem}
.site-footer a:hover{color:#fff}
.site-footer .logo{color:#fff}
.site-footer .logo-text{color:#fff}
.site-footer .logo-text span{color:#60a5fa}
.footer-bottom{border-top:1px solid #1e293b;padding-top:20px;text-align:center;font-size:.85rem}

/* AUTH */
.auth-sec h1{text-align:center;margin-bottom:20px}
.dash-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:30px;flex-wrap:wrap;gap:12px}

@media(max-width:900px){
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .grid-3{grid-template-columns:repeat(2,1fr)}
  .article-layout{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
  .hero-grid{grid-template-columns:1fr}
}
@media(max-width:640px){
  h1{font-size:1.9rem}
  .grid-3,.grid-4{grid-template-columns:1fr}
  .hero-stats{flex-wrap:wrap;gap:20px}
  .menu-toggle{display:flex}
  .main-nav{display:none;position:absolute;top:70px;left:0;right:0;background:#fff;flex-direction:column;padding:16px;border-bottom:1px solid var(--border);box-shadow:0 8px 24px rgba(0,0,0,.1)}
  body.menu-open .main-nav{display:flex}
  .main-nav a{width:100%;text-align:left}
  .footer-grid{grid-template-columns:1fr}
  .gen-form{padding:20px}
  .search-form{flex-direction:column}
}