:root{ --bg:#0b0c0f; --card:#111319; --muted:#8b8f98; --accent:#2dd4bf; --accent-2:#60a5fa; --text:#e5e7eb; --text-strong:#f9fafb; --border:#1f2430; }
*{box-sizing:border-box}
html,body{margin:0;padding:0;background:#0b0c0f;color:var(--text);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Ubuntu,Helvetica,Arial,sans-serif;line-height:1.45}
img{max-width:100%;display:block;border-radius:12px}
a{color:var(--accent);text-decoration:none}
.container{max-width:1100px;margin:0 auto;padding:0 16px}
.header{display:flex;align-items:center;justify-content:space-between;padding:14px 0;border-bottom:1px solid var(--border);position:sticky;top:0;background:rgba(11,12,15,.8);backdrop-filter: blur(6px);z-index:10}
.logo{font-weight:800;letter-spacing:.2px}
.logo a{color:var(--text-strong)}
.nav a{margin:0 10px;color:var(--text);opacity:.9}
.nav .btn-primary{margin-left:10px}
.btn{display:inline-block;padding:10px 14px;border-radius:10px;border:1px solid var(--border);color:var(--text);background:transparent;cursor:pointer}
.btn:hover{border-color:#2a2f3a}
.btn-primary{background:linear-gradient(135deg,var(--accent),var(--accent-2));color:#0b0c0f;border:none}
.btn-ghost{background:transparent;border:1px solid var(--border)}
.hero{background:radial-gradient(1200px 400px at 50% -10%,rgba(45,212,191,.15),transparent),radial-gradient(800px 300px at 80% 10%,rgba(96,165,250,.15),transparent);padding:80px 0 60px;border-bottom:1px solid var(--border)}
.hero h1{font-size:36px;margin:0 0 8px;color:var(--text-strong)}
.subtitle{color:var(--muted);margin-bottom:18px}
.cta .btn{margin-right:8px}
.usp{display:grid;gap:14px;grid-template-columns:repeat(auto-fit,minmax(210px,1fr));padding:22px 0}
.usp-item{background:var(--card);padding:14px;border:1px solid var(--border);border-radius:14px}
.section{padding:42px 0}
.calc-grid{display:grid;gap:14px;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));background:var(--card);padding:16px;border:1px solid var(--border);border-radius:16px}
.calc-grid input,.calc-grid select,.contact-form input,.contact-form textarea{width:100%;padding:10px 12px;border-radius:10px;border:1px solid var(--border);background:#0e1117;color:var(--text)}
.hint{color:var(--muted);font-size:12px}.row2{display:flex;align-items:center;gap:10px}
.checkbox{display:flex;align-items:center;gap:8px}
.calc-actions{grid-column:1/-1;display:flex;gap:10px}
.result{margin-top:14px;background:#0e1117;border:1px solid var(--border);border-radius:12px;padding:14px}
.hidden{display:none}
.gallery{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:12px}
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:12px}
.card{background:var(--card);padding:14px;border:1px solid var(--border);border-radius:14px}
.reviews{display:grid;gap:10px}
.reviews blockquote{background:var(--card);border:1px solid var(--border);padding:12px;border-radius:12px;margin:0}
.contact-grid{display:grid;grid-template-columns:1.1fr 1fr;gap:18px}
.contact-form{background:var(--card);border:1px solid var(--border);padding:14px;border-radius:14px}
.form-msg{margin-top:8px;color:var(--muted)}
.footer{border-top:1px solid var(--border);padding:20px 0;margin-top:40px}
.footer-inner{display:flex;align-items:center;justify-content:space-between}
@media (max-width:800px){.contact-grid{grid-template-columns:1fr}.hero h1{font-size:28px}}