*{box-sizing:border-box}:root,[data-theme=dark]{--bg:#0b1020;--surface:#131a30;--surface-2:#1a2340;--surface-3:#222b4a;--border:rgba(255,255,255,.08);--divider:rgba(255,255,255,.06);--text:#eef2ff;--text-muted:#b8c0d9;--text-faint:#8090b8;--primary:#6d5efc;--primary-hover:#7d6efc;--shadow:0 10px 30px rgba(0,0,0,.3)}[data-theme=light]{--bg:#f4f5fb;--surface:#ffffff;--surface-2:#eef0fa;--surface-3:#e4e6f4;--border:rgba(0,0,0,.08);--divider:rgba(0,0,0,.06);--text:#1a1d35;--text-muted:#555d80;--text-faint:#8890b0;--primary:#5b4edc;--primary-hover:#4a3ecc;--shadow:0 10px 30px rgba(0,0,0,.08)}body{margin:0;font-family:Inter,Arial,sans-serif;background:var(--bg);color:var(--text);transition:background .2s,color .2s}.container{max-width:1180px;margin:0 auto;padding:0 20px}nav{position:sticky;top:0;z-index:100;background:color-mix(in srgb,var(--bg) 85%,transparent);-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);border-bottom:1px solid var(--border)}.nav-inner{height:68px;display:flex;justify-content:space-between;align-items:center}.logo{display:flex;align-items:center;gap:10px;font-weight:800;font-size:18px}.nav-right{display:flex;align-items:center;gap:12px}.badge{font-size:12px;color:var(--text-muted);background:var(--surface-2);padding:6px 12px;border-radius:999px;border:1px solid var(--border)}.theme-btn{width:36px;height:36px;display:flex;align-items:center;justify-content:center;border-radius:999px;background:var(--surface-2);border:1px solid var(--border);color:var(--text);cursor:pointer;transition:all .2s}.theme-btn:hover{color:var(--primary);background:var(--surface-3)}.theme-btn svg{display:block;flex-shrink:0;stroke:currentColor}.hero{padding:64px 20px 28px}.eyebrow{color:var(--primary);text-transform:uppercase;letter-spacing:.12em;font-size:12px;font-weight:700;margin-bottom:10px}h1{font-size:clamp(36px,5vw,58px);line-height:1.02;max-width:850px;margin:0 0 16px;font-weight:800}.sub{max-width:760px;color:var(--text-muted);font-size:18px;line-height:1.7;margin:0 0 24px}.stats{display:flex;gap:16px;flex-wrap:wrap}.stats div{background:var(--surface);border:1px solid var(--border);padding:14px 18px;border-radius:16px;min-width:110px}.stats strong{display:block;font-size:26px;font-weight:800}.stats span{color:var(--text-faint);font-size:12px}.main-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px;padding:10px 20px}.panel{background:var(--surface);border:1px solid var(--border);border-radius:20px;padding:24px;box-shadow:var(--shadow)}.panel h2{margin:0 0 16px;font-size:22px}label{display:block;font-size:12px;color:var(--text-faint);margin-bottom:6px;font-weight:600;text-transform:uppercase;letter-spacing:.06em}textarea,select{width:100%;background:var(--bg);color:var(--text);border:1px solid var(--border);border-radius:14px;padding:12px 14px;font-size:15px;font-family:inherit;transition:border-color .2s}textarea{resize:vertical;min-height:240px}textarea:focus,select:focus{outline:none;border-color:var(--primary)}.row{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin:14px 0}button{background:var(--primary);color:#fff;border:none;border-radius:14px;padding:13px 18px;font-size:15px;font-weight:700;cursor:pointer;width:100%;transition:background .2s,transform .15s}button:hover{background:var(--primary-hover);transform:translateY(-1px)}button:disabled{opacity:.6;transform:none}.ghost{background:var(--surface-2);color:var(--text);border:1px solid var(--border)}.ghost:hover{background:var(--surface-3)}.output{white-space:pre-wrap;background:var(--bg);border:1px solid var(--border);border-radius:14px;padding:16px;min-height:380px;line-height:1.7;color:var(--text);margin:0;font-family:inherit;font-size:14px}.error{margin-top:12px;background:#3a1e2a;color:#ffb4c2;padding:12px 14px;border-radius:12px;font-size:14px}[data-theme=light] .error{background:#fde8ed;color:#c0284a}.section{padding:24px 20px 8px}.section-head{display:flex;justify-content:space-between;align-items:end;gap:16px;margin-bottom:18px}.section-head h2{margin:0;font-size:22px}.section-head p{color:var(--text-faint);margin:0;font-size:14px}.plans{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.plan{background:var(--surface);border:1px solid var(--border);border-radius:20px;padding:22px;box-shadow:var(--shadow)}.plan--featured{border-color:var(--primary);box-shadow:0 0 0 1px var(--primary),var(--shadow)}.plan-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:4px}.plan-top h3{margin:0;font-size:17px}.plan-top span{font-size:11px;color:var(--primary);background:color-mix(in srgb,var(--primary) 12%,transparent);padding:5px 10px;border-radius:999px}.price{font-size:32px;font-weight:800;margin:12px 0 10px}.plan ul{padding-left:18px;color:var(--text-muted);line-height:1.9;margin:0 0 18px;min-height:100px;font-size:14px}.history{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;padding-bottom:10px}.history-item{background:var(--surface);border:1px solid var(--border);border-radius:18px;padding:18px;box-shadow:var(--shadow)}.history-top{display:flex;justify-content:space-between;gap:10px;align-items:start;margin-bottom:8px}.history-top strong{font-size:14px;line-height:1.4}.history-top span{font-size:11px;color:var(--primary);background:color-mix(in srgb,var(--primary) 12%,transparent);padding:4px 9px;border-radius:999px;white-space:nowrap}.history-item p{color:var(--text-muted);line-height:1.6;font-size:13px;margin:0 0 8px}.history-item small{color:var(--text-faint);font-size:12px}footer{border-top:1px solid var(--border);margin-top:32px;padding:28px 0}.footer-inner{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:16px}.footer-logo{font-weight:700;font-size:16px}.footer-links{display:flex;gap:20px}.footer-links a{display:flex;align-items:center;gap:6px;color:var(--text-muted);font-size:14px;text-decoration:none;transition:color .2s}.footer-links a:hover{color:var(--text)}.footer-copy{font-size:13px;color:var(--text-faint)}@media (max-width:980px){.main-grid,.plans,.history,.row{grid-template-columns:1fr}h1{font-size:36px}.footer-inner{flex-direction:column;text-align:center}}