:root{--bg:#0b0d13;--surface:#141824;--surface-2:#1c2130;--border:#262c3d;--text:#e8ecf5;--muted:#93a0b8;--accent:#7c5cff;--accent-2:#4dd6c1;--danger:#ff5c7a;--radius:16px}*{box-sizing:border-box}body,html{margin:0;padding:0;background:var(--bg);color:var(--text);font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif;-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none}.container{max-width:960px;margin:0 auto;padding:24px 20px}.hero{text-align:center;padding:56px 20px 32px;background:radial-gradient(60% 120% at 50% 0,rgba(124,92,255,.25),transparent 60%)}.hero h1{font-size:clamp(28px,6vw,48px);margin:0 0 12px;letter-spacing:-.02em}.hero p{color:var(--muted);font-size:18px;max-width:560px;margin:0 auto 24px}.badge{display:inline-block;font-size:13px;color:var(--accent-2);border:1px solid var(--border);border-radius:999px;padding:6px 14px;margin-bottom:20px}.grid{display:grid;grid-gap:16px;gap:16px;grid-template-columns:repeat(auto-fill,minmax(220px,1fr))}.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:20px}.card-title{font-size:15px;color:var(--muted);margin:0 0 8px}.tariff{display:flex;flex-direction:column;gap:6px;transition:border-color .15s,transform .15s}.tariff:hover{border-color:var(--accent);transform:translateY(-2px)}.tariff .months{font-size:22px;font-weight:700}.tariff .traffic{color:var(--muted);font-size:14px}.tariff .price{font-size:28px;font-weight:800;margin-top:8px}.tariff .price span{font-size:15px;color:var(--muted);font-weight:500}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;background:var(--accent);color:#fff;border:none;cursor:pointer;font-size:15px;font-weight:600;padding:12px 18px;border-radius:12px;transition:filter .15s;width:100%}.btn:hover{filter:brightness(1.08)}.btn:disabled{opacity:.5;cursor:not-allowed}.btn-ghost{background:var(--surface-2);color:var(--text);border:1px solid var(--border)}.row{display:flex;align-items:center;justify-content:space-between;gap:12px}.section{margin-top:28px}.section h2{font-size:18px;margin:0 0 14px}.status-pill{font-size:13px;padding:5px 12px;border-radius:999px;font-weight:600}.status-on{background:rgba(77,214,193,.15);color:var(--accent-2)}.status-off{background:rgba(255,92,122,.15);color:var(--danger)}.input{width:100%;background:var(--surface-2);border:1px solid var(--border);color:var(--text);border-radius:12px;padding:12px 14px;font-size:15px}.input:focus{outline:none;border-color:var(--accent)}.muted{color:var(--muted)}.error{color:var(--danger)}.error,.ok{font-size:14px}.ok{color:var(--accent-2)}.center{text-align:center}.stack{display:flex;flex-direction:column;gap:12px}.meter{height:8px;background:var(--surface-2);border-radius:999px;overflow:hidden}.meter>span{display:block;height:100%;background:linear-gradient(90deg,var(--accent),var(--accent-2))}.receipt{display:flex;justify-content:space-between;padding:12px 0;border-bottom:1px solid var(--border);font-size:14px}