:root{--primary:#005f99;--secondary:#08c;--accent:#2ecc71;--background:#f8fbff;--card-bg:#fff;--text-main:#2c3e50;--text-light:#5d6d7e;--shadow:0 4px 15px #0000000d;--border-radius:12px;--nav-bg:#fff}body.dark{--primary:#38bdf8;--secondary:#0ea5e9;--accent:#4ade80;--background:#0a0a0a;--card-bg:#1a1a1a;--text-main:#f1f5f9;--text-light:#94a3b8;--shadow:0 4px 20px #0006;--nav-bg:#111}*{box-sizing:border-box;margin:0;padding:0;transition:background-color .3s,color .3s,border-color .3s}body{background-color:var(--background);color:var(--text-main);font-family:Inter,system-ui,-apple-system,sans-serif;line-height:1.6}.container{max-width:1200px;margin:0 auto;padding:0 2rem}nav{background:var(--nav-bg);box-shadow:var(--shadow);z-index:1000;border-bottom:1px solid #94a3b81a;padding:1rem 0;position:sticky;top:0}.nav-content{justify-content:space-between;align-items:center;display:flex}.logo{color:var(--primary);align-items:center;gap:.5rem;font-size:1.5rem;font-weight:800;text-decoration:none;display:flex}.nav-links{align-items:center;gap:2rem;display:flex}.nav-links a{color:var(--text-light);font-weight:500;text-decoration:none;transition:color .2s}.nav-links a.btn-primary{color:#fff}.nav-links a:hover,.nav-links a.active{color:var(--primary)}.hero{background:var(--background);border-bottom:1px solid #94a3b81a;padding:6rem 0}body:not(.dark) .hero{background:linear-gradient(135deg,#e0f2fe 0%,#f0f9ff 100%)}body.dark .hero{background:linear-gradient(135deg,#0f172a 0%,#020617 100%)}.hero-content{grid-template-columns:1fr 1fr;align-items:center;gap:4rem;display:grid}.hero-text h1{color:var(--primary);margin-bottom:1.5rem;font-size:3.5rem;line-height:1.1}body:not(.dark) .hero-text h1{color:#1e3a8a}.hero-text p{color:var(--text-light);margin-bottom:2rem;font-size:1.25rem}.btn{border-radius:var(--border-radius);cursor:pointer;border:none;padding:1rem 2rem;font-weight:600;text-decoration:none;transition:all .2s;display:inline-block}.btn-primary{background:var(--primary);color:#fff!important}.btn-primary:hover{background:var(--secondary);transform:translateY(-2px)}.hero-image{box-shadow:var(--shadow);background:var(--card-bg);border-radius:24px;overflow:hidden}.hero-image img{width:100%;height:auto;display:block}section{padding:5rem 0}.section-title{text-align:center;margin-bottom:3rem}.section-title h2{color:var(--primary);font-size:2.5rem}body:not(.dark) .section-title h2{color:#1e3a8a}.grid{grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:2rem;display:grid}.card{background:var(--card-bg);border-radius:var(--border-radius);box-shadow:var(--shadow);border:1px solid var(--primary);padding:2.5rem;transition:transform .2s,border-color .2s,box-shadow .2s}body:not(.dark) .card{border-color:#005f9933}body.dark .card{border-color:#38bdf84d}.card:hover{border-color:var(--primary);transform:translateY(-5px)}.card h3{color:var(--primary);margin:1rem 0}.footer{color:#fff;background:#0f172a;padding:4rem 0 2rem}.footer-content{grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:3rem;margin-bottom:3rem;display:grid}.footer-bottom{text-align:center;color:#bfdbfe;border-top:1px solid #ffffff1a;padding-top:2rem;font-size:.875rem}.theme-toggle{cursor:pointer;color:var(--text-light);background:0 0;border:none;border-radius:50%;justify-content:center;align-items:center;padding:.5rem;transition:background-color .2s;display:flex}.theme-toggle:hover{color:var(--primary);background-color:#94a3b81a}@media (width<=768px){.hero-content{text-align:center;grid-template-columns:1fr}.hero-text h1{font-size:2.5rem}.nav-links{display:none}}