:root{--primary:#5b4bdb;--ink:#172033;--muted:#6b7280;--bg:#f6f7fb;--white:#fff;--border:#e5e7eb}
*{box-sizing:border-box}body{margin:0;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;background:var(--bg);color:var(--ink);line-height:1.7}a{color:var(--primary);text-decoration:none}.container{width:min(900px,92%);margin:auto}header{background:#fff;border-bottom:1px solid var(--border);padding:18px 0;position:sticky;top:0}.nav{display:flex;justify-content:space-between;align-items:center;gap:20px}.brand{font-size:1.35rem;font-weight:850;color:var(--ink)}.back{font-weight:750}main{padding:64px 0}.card{background:#fff;border:1px solid var(--border);border-radius:22px;padding:clamp(24px,5vw,52px);box-shadow:0 18px 50px rgba(23,32,51,.08)}h1{font-size:clamp(2.2rem,6vw,4rem);line-height:1.05;letter-spacing:-.05em;margin:0 0 16px}h2{margin-top:36px;letter-spacing:-.025em}p,li{color:#4b5563}.lead{font-size:1.1rem}.contact-box{background:#f4f2ff;border-radius:16px;padding:20px;margin-top:24px}footer{padding:28px 0;color:var(--muted);text-align:center}.btn{display:inline-block;background:linear-gradient(135deg,#5b4bdb,#4338a8);color:#fff;padding:12px 18px;border-radius:12px;font-weight:800;margin-top:10px}input,textarea{width:100%;padding:14px;border:1px solid var(--border);border-radius:12px;font:inherit;margin-top:6px}label{font-weight:750;display:block;margin-top:18px}textarea{min-height:150px}