:root{--brand:#227fb0;--brand-dark:#1a6288;--brand-light:#e8f4fa;--bg:#f0f4f8;--bg-gradient:linear-gradient(160deg,#e8f4fa,#f0f4f8 45%,#f8fafc);--card:#fff;--text:#1a2b3c;--muted:#5c6b7a;--border:#d8e3ec;--shadow:0 4px 24px rgba(34,127,176,.08);--radius:14px;--header-h:64px}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;min-height:100vh;font-family:Segoe UI,system-ui,-apple-system,Roboto,Helvetica Neue,sans-serif;background:var(--bg-gradient);background-attachment:fixed;color:var(--text);line-height:1.6}a{color:var(--brand);text-decoration:none}a:hover{text-decoration:underline}.site-header{position:-webkit-sticky;position:sticky;top:0;z-index:50;height:var(--header-h);background:hsla(0,0%,100%,.92);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-bottom:1px solid var(--border)}.site-header-inner{max-width:1140px;margin:0 auto;padding:0 24px;height:100%;justify-content:space-between;gap:16px}.brand-link,.site-header-inner{display:flex;align-items:center}.brand-link{gap:12px;color:inherit}.brand-link,.brand-link:hover{text-decoration:none}.brand-logo{height:44px;width:auto;border-radius:8px}.brand-name{font-weight:700;font-size:1.1rem;letter-spacing:.02em}.nav-links{display:flex;align-items:center;gap:8px;flex-wrap:wrap}.container{max-width:1140px}.container,.container-narrow{margin:0 auto;padding:32px 24px 48px}.container-narrow{max-width:520px}.card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:28px;box-shadow:var(--shadow)}.card-accent{background:var(--brand-light);border-color:#c5e3f3}.card h1,.card h2{margin-top:0}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;background:var(--brand);color:#fff!important;border:none;border-radius:10px;padding:11px 20px;font-size:.95rem;font-weight:600;cursor:pointer;transition:background .15s ease,transform .1s ease}.btn,.btn:hover{text-decoration:none!important}.btn:hover{background:var(--brand-dark)}.btn:active{transform:scale(.98)}.btn:disabled{opacity:.55;cursor:not-allowed;transform:none}.btn-outline{background:transparent;color:var(--brand)!important;border:1.5px solid var(--brand)}.btn-outline:hover{background:var(--brand-light)}.btn-ghost{background:transparent;color:var(--text)!important;border:1px solid var(--border)}.btn-sm{padding:8px 14px;font-size:.875rem}.btn-block{width:100%}input,select,textarea{width:100%;padding:11px 14px;border:1px solid var(--border);border-radius:10px;font-size:1rem;margin-bottom:14px;background:#fff;transition:border-color .15s ease,box-shadow .15s ease}input:focus,select:focus,textarea:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(34,127,176,.15)}label{display:block;font-weight:600;font-size:.9rem;margin-bottom:6px}.error{color:#b42318;background:#fef3f2;border:1px solid #fecdca;border-radius:8px}.error,.success{padding:10px 12px;margin:8px 0 14px;font-size:.9rem}.success{color:#027a48;background:#ecfdf3;border:1px solid #abefc6;border-radius:8px}.muted{color:var(--muted)}.lead{font-size:1.15rem;color:var(--brand-dark);font-weight:600;line-height:1.45}.grid-2{display:grid;grid-gap:36px;gap:36px;align-items:start}@media (min-width:960px){.grid-2{grid-template-columns:1fr 400px}}.section-title{font-size:1.35rem;font-weight:700;margin:0 0 16px;color:var(--text)}.feature{display:flex;gap:16px;margin-bottom:20px}.feature-icon{flex-shrink:0;width:44px;height:44px;border-radius:12px;background:var(--brand-light);color:var(--brand);display:flex;align-items:center;justify-content:center;font-size:1.25rem}.feature h3{margin:0 0 4px;font-size:1rem}.feature p{margin:0;color:var(--muted);font-size:.95rem}.step{display:flex;gap:14px;margin-bottom:14px;align-items:flex-start}.step-num{flex-shrink:0;width:28px;height:28px;border-radius:50%;background:var(--brand);color:#fff;font-size:.85rem;font-weight:700;display:flex;align-items:center;justify-content:center}.chips{display:flex;flex-wrap:wrap;gap:10px;margin-top:12px}.chip{display:inline-flex;align-items:center;gap:6px;padding:8px 14px;border-radius:999px;background:var(--brand-light);color:var(--brand-dark);font-size:.875rem;font-weight:600;border:1px solid #c5e3f3}.quote{font-style:italic;font-size:1.05rem;line-height:1.55;margin:0}.site-footer{border-top:1px solid var(--border);background:hsla(0,0%,100%,.7);padding:28px 24px;margin-top:24px}.site-footer-inner{max-width:1140px;margin:0 auto;display:flex;flex-wrap:wrap;justify-content:space-between;gap:16px;font-size:.875rem;color:var(--muted)}.device-list{list-style:none;padding:0;margin:0}.device-item{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;padding:14px 0;border-bottom:1px solid var(--border)}.device-item:last-child{border-bottom:none}.plan-grid{display:grid;grid-gap:20px;gap:20px}@media (min-width:640px){.plan-grid{grid-template-columns:1fr 1fr}}.plan-card{text-align:center}.plan-price{font-size:1.75rem;font-weight:800;color:var(--brand);margin:8px 0 16px}.auth-toggle{display:flex;gap:0;margin-bottom:20px;background:var(--bg);border-radius:10px;padding:4px;border:1px solid var(--border)}.auth-toggle button{flex:1 1;padding:10px;border:none;background:transparent;border-radius:8px;font-weight:600;cursor:pointer;color:var(--muted)}.auth-toggle button.active{background:#fff;color:var(--brand);box-shadow:0 1px 4px rgba(0,0,0,.06)}.page-title{margin:0 0 8px;font-size:1.75rem}