:root{--brand:#2cdd9b;--brand-dark:#20b989;--text-main:#0f172a;--text-muted:#64748b;--radius-lg:18px;--radius-md:12px}body{-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;color:var(--text-main)}h1,h2,h3,h4{letter-spacing:-.02em}.btn{border-radius:var(--radius-md);font-weight:600;transition:transform .15s ease,box-shadow .15s ease}.btn-primary{background:var(--brand);border-color:var(--brand)}.btn-primary:hover{background:var(--brand-dark);transform:translateY(-1px);box-shadow:0 12px 28px rgba(44,221,155,.25)}.form-control,.form-select{border-radius:var(--radius-md);padding:12px 14px}.form-control:focus{border-color:var(--brand);box-shadow:0 0 0 .25rem rgba(44,221,155,.18)}.card,.callback-card{border-radius:var(--radius-lg); background:#fff;box-shadow:0 18px 40px rgba(15,23,42,.08)}.container{max-width:1140px}a{text-decoration:none}a:hover{color:var(--brand)}