:root{--bg: #0f1220;--bg-soft: #161a2e;--card: #1b2036;--card-border: #2a3150;--text: #e7eaf6;--muted: #9aa3c0;--accent: #5b8cff;--accent-strong: #3f6ff5;--accent-soft: rgba(91, 140, 255, .14);--green: #3ddc97;--red: #ff6b7a;--radius: 14px;--maxw: 1100px;font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,sans-serif}*{box-sizing:border-box}html,body,#root{margin:0;padding:0;min-height:100%}body{background:radial-gradient(1200px 600px at 80% -10%,rgba(91,140,255,.18),transparent 60%),radial-gradient(900px 500px at 0% 110%,rgba(61,220,151,.1),transparent 55%),var(--bg);color:var(--text);line-height:1.5;-webkit-font-smoothing:antialiased}a{color:var(--accent);text-decoration:none}a:hover{text-decoration:underline;color:#7ea4ff}.app{min-height:100vh;display:flex;flex-direction:column}.nav{position:sticky;top:0;z-index:10;background:#0f1220d9;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-bottom:1px solid var(--card-border)}.nav-inner{max-width:var(--maxw);margin:0 auto;padding:12px 20px;display:flex;align-items:center;justify-content:space-between;gap:16px}.brand{font-weight:800;font-size:1.15rem;color:var(--text)}.brand-mark{color:var(--accent);margin-right:4px}.brand-dot{color:var(--accent)}.nav-links{display:flex;align-items:center;gap:18px}.nav-links a{color:var(--muted);font-weight:500}.nav-links a:hover{color:var(--text);text-decoration:none}.link-btn{background:none;border:none;color:var(--muted);font-size:1rem;cursor:pointer;font-family:inherit}.link-btn:hover{color:var(--text)}.page{max-width:var(--maxw);width:100%;margin:0 auto;padding:40px 20px 80px;flex:1}.page-center{display:flex;align-items:center;justify-content:center;min-height:70vh}.page-head{margin-bottom:24px}.page-head h1{margin:0 0 4px}.muted{color:var(--muted)}.text-center{text-align:center}.accent{color:var(--accent)}.hint{color:var(--muted);font-size:.9rem}.hero{text-align:center;padding:30px 0 40px}.hero h1{font-size:clamp(2rem,5vw,3.2rem);line-height:1.1;margin:0 0 16px;letter-spacing:-.02em}.hero-sub{color:var(--muted);font-size:1.1rem;max-width:620px;margin:0 auto 28px}.hero-actions{display:flex;gap:12px;justify-content:center;flex-wrap:wrap}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:1px solid transparent;border-radius:10px;padding:11px 20px;font-size:.95rem;font-weight:600;cursor:pointer;font-family:inherit;transition:transform .06s ease,background .15s ease,border-color .15s ease}.btn:disabled{opacity:.6;cursor:not-allowed}.btn:not(:disabled):active{transform:translateY(1px)}.btn-primary{background:linear-gradient(180deg,var(--accent),var(--accent-strong));color:#fff}.btn-primary:hover{filter:brightness(1.06);text-decoration:none}.btn-ghost{background:transparent;border-color:var(--card-border);color:var(--text)}.btn-ghost:hover{background:var(--accent-soft);border-color:var(--accent);text-decoration:none}.btn-sm{padding:7px 14px;font-size:.85rem}.btn-block{width:100%;margin-top:12px}.card{background:var(--card);border:1px solid var(--card-border);border-radius:var(--radius);padding:24px}.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:16px}.actions{display:flex;gap:12px;margin-top:24px;flex-wrap:wrap}.stat-card{display:flex;flex-direction:column;gap:6px}.stat-label{color:var(--muted);font-size:.9rem}.stat-value{font-size:2.4rem;font-weight:800;line-height:1.05;color:var(--accent)}.auth-card{width:100%;max-width:420px;padding:32px}.auth-card h1{margin:0 0 6px;font-size:1.7rem}.auth-alt{margin-top:18px;color:var(--muted);text-align:center;font-size:.9rem}.field{display:block;margin:16px 0}.field span{display:block;margin-bottom:6px;font-size:.88rem;color:var(--muted)}.field input{width:100%;padding:12px 14px;border-radius:10px;border:1px solid var(--card-border);background:var(--bg-soft);color:var(--text);font-size:1rem;font-family:inherit}.field input:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft)}.demo-card{padding:24px;max-width:640px;margin:0 auto}.filedrop{border:2px dashed var(--card-border);border-radius:var(--radius);padding:42px 20px;text-align:center;cursor:pointer;transition:border-color .15s ease,background .15s ease}.filedrop:hover,.filedrop.is-dragging{border-color:var(--accent);background:var(--accent-soft)}.filedrop-icon{font-size:2rem;margin-bottom:8px}.filedrop-title{font-weight:600;margin:0 0 4px}.filedrop-hint{color:var(--muted);font-size:.85rem;margin:0}.result{margin-top:32px}.result-meta{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:12px}.result-meta span{background:var(--accent-soft);color:var(--accent);border-radius:999px;padding:4px 12px;font-size:.83rem;font-weight:600}.markdown-body{line-height:1.7;overflow-wrap:break-word}.markdown-body h1,.markdown-body h2,.markdown-body h3{margin:.8em 0 .4em}.markdown-body pre{background:var(--bg-soft);border:1px solid var(--card-border);border-radius:8px;padding:12px;overflow-x:auto}.markdown-body code{font-family:SFMono-Regular,Consolas,monospace;font-size:.9em}.markdown-body table{border-collapse:collapse;width:100%;margin:12px 0}.markdown-body th,.markdown-body td{border:1px solid var(--card-border);padding:6px 10px}.markdown-body th{background:var(--bg-soft)}.markdown-body img{max-width:100%;border-radius:8px}.markdown-body blockquote{margin:0;padding-left:14px;border-left:3px solid var(--accent);color:var(--muted)}.alert{border-radius:10px;padding:12px 14px;margin:16px 0;font-size:.92rem}.alert-error{background:#ff6b7a1f;border:1px solid rgba(255,107,122,.4);color:#ffb3bb}.alert-error a{color:#ffb3bb;text-decoration:underline}.alert-success{background:#3ddc971f;border:1px solid rgba(61,220,151,.4);color:#9ff0cd}.status{color:var(--muted);text-align:center;margin-top:16px}.packs{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:16px;margin-top:8px}.pack{text-align:center}.pack h3{margin:0 0 10px}.pack-price{display:flex;align-items:baseline;justify-content:center;gap:6px}.pack-amount{font-size:2.2rem;font-weight:800}.pack-credits{color:var(--muted);margin:8px 0 0}.checkout-icon{font-size:3rem;margin-bottom:8px}.checkout-icon.ok{color:var(--green)}@media (max-width: 620px){.page{padding:24px 14px 60px}.nav-links{gap:12px}}