:root{--primary: #2563eb;--primary-dark: #1d4ed8;--ink: #101828;--muted: #667085;--line: #eaecf0;--bg: #f9fafb;--card: #ffffff;--danger: #c0392b;--success: #1d8a4c}@media (prefers-color-scheme: dark){:root{--ink: #e5e7eb;--muted: #9aa4b2;--line: #262b33;--bg: #0b0d10;--card: #12151a}}*{box-sizing:border-box}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background:var(--bg);color:var(--ink)}.wrap{max-width:480px;margin:0 auto;padding:48px 20px}.wrap.wide{max-width:900px}.topbar{display:flex;align-items:center;justify-content:space-between;margin-bottom:28px}.brand{font-weight:800;font-size:15px;letter-spacing:-.01em}.lang-switch{display:flex;gap:4px}.lang-switch button{border:1px solid var(--line);background:var(--card);color:var(--muted);font:600 11px/1 -apple-system,sans-serif;padding:5px 9px;border-radius:999px;cursor:pointer}.lang-switch button.active{background:var(--ink);color:var(--bg);border-color:var(--ink)}.back-link{display:inline-block;margin-bottom:16px;font-size:13px;color:var(--muted);text-decoration:none}.back-link:hover{color:var(--ink)}.card{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:28px;box-shadow:0 1px 2px #1018280a}.card h1{font-size:20px;margin:0 0 6px}.card p.subtitle{color:var(--muted);font-size:13.5px;margin:0 0 22px;line-height:1.5}.tabs{display:flex;gap:4px;background:var(--bg);border:1px solid var(--line);border-radius:10px;padding:3px;margin-bottom:22px}.tabs button{flex:1;border:none;background:none;color:var(--muted);font:600 13px/1 -apple-system,sans-serif;padding:9px;border-radius:8px;cursor:pointer}.tabs button.active{background:var(--card);color:var(--ink);box-shadow:0 1px 2px #10182814}.field{margin-bottom:14px}.field label{display:block;font-size:12.5px;font-weight:600;color:var(--muted);margin-bottom:5px}.field input{width:100%;padding:10px 12px;border:1px solid var(--line);background:var(--bg);color:var(--ink);border-radius:8px;font-size:14px}.field input:focus{outline:none;border-color:var(--primary)}.field-hint{margin:4px 0 0;font-size:11.5px;color:var(--muted);line-height:1.4}.btn{width:100%;padding:12px 16px;border:none;border-radius:10px;font:700 13.5px/1 -apple-system,sans-serif;cursor:pointer;background:var(--primary);color:#fff}.btn:hover{background:var(--primary-dark)}.btn:disabled{opacity:.6;cursor:default}.btn.secondary{background:transparent;border:1px solid var(--line);color:var(--ink)}.btn.danger-outline{background:transparent;border:1px solid var(--line);color:var(--danger)}.error-text{color:var(--danger);font-size:13px;margin:0 0 14px}.status-ok{color:var(--success)}.banner{padding:12px 16px;border-radius:10px;font-size:13px;font-weight:600;margin-bottom:20px}.banner.success{background:#1d8a4c1f;color:var(--success)}.banner.cancel{background:var(--line);color:var(--muted)}.banner.key{background:#2563eb14;border:1px solid rgba(37,99,235,.25);color:var(--ink);display:flex;flex-direction:column;gap:8px}.dashboard-row{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:14px 0;border-top:1px solid var(--line)}.dashboard-row:first-child{border-top:none}.dashboard-row .label{font-size:12px;color:var(--muted)}.dashboard-row .value{font-weight:700;font-size:14px}.key-box{display:flex;align-items:center;gap:8px;background:var(--bg);border:1px solid var(--line);border-radius:8px;padding:10px 12px;font-family:ui-monospace,monospace;font-size:13px}.key-box code{flex:1;overflow-wrap:anywhere}.key-box button{flex:none;border:none;background:var(--ink);color:var(--bg);font:700 11px/1 -apple-system,sans-serif;padding:7px 10px;border-radius:6px;cursor:pointer}.plans-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:18px}.plan-card{background:var(--card);border:2px solid var(--line);border-radius:14px;padding:22px;display:flex;flex-direction:column;gap:10px}.plan-card.current{border-color:var(--primary)}.plan-card h3{margin:0;font-size:15px}.plan-card .price{font-size:24px;font-weight:800}.plan-card .price span{font-size:12px;font-weight:500;color:var(--muted)}.plan-card ul{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:6px;flex:1;font-size:12.5px;color:var(--muted)}.plan-card ul li:before{content:"✓ ";color:var(--success);font-weight:700}.badge-current{align-self:flex-start;background:#2563eb1a;color:var(--primary);font:700 10.5px/1 -apple-system,sans-serif;padding:4px 9px;border-radius:999px}