* { margin:0; padding:0; box-sizing:border-box; }
:root { --bg:#0f172a; --bg2:#1e293b; --amber:#f59e0b; --amber-d:#d97706; --white:#f1f5f9; --dim:#64748b; --border:#334155; --green:#22c55e; --red:#ef4444; }
body { font-family:'Space Grotesk',sans-serif; background:var(--bg); color:var(--white); min-height:100vh; }
.container { max-width:800px; margin:0 auto; padding:0 20px; }
.nav { background:var(--bg2); border-bottom:1px solid var(--border); }
.nav-inner { display:flex; align-items:center; justify-content:space-between; height:54px; }
.brand { font-size:1.05rem; font-weight:700; }
.brand i { color:var(--amber); margin-right:6px; }
.brand b { color:var(--amber); }
.tag { font-family:'JetBrains Mono',monospace; font-size:0.65rem; letter-spacing:0.12em; color:var(--amber); }
.page { padding:48px 0 60px; }
.hero { text-align:center; margin-bottom:28px; }
.hero h1 { font-size:2.2rem; font-weight:700; }
.hl { color:var(--amber); }
.hero p { color:var(--dim); font-size:0.9rem; margin-top:8px; max-width:550px; margin-left:auto; margin-right:auto; line-height:1.6; }
.params-grid { display:grid; grid-template-columns:repeat(4,1fr); gap:12px; margin-bottom:20px; }
.param { background:var(--bg2); border:1px solid var(--border); border-radius:10px; padding:16px; text-align:center; }
.pk { display:block; font-size:0.7rem; color:var(--dim); text-transform:uppercase; letter-spacing:0.08em; margin-bottom:6px; }
.pv { font-size:1rem; font-weight:700; }
.card { background:var(--bg2); border:1px solid var(--border); border-radius:14px; padding:24px; margin-bottom:16px; }
.card h3 { font-size:0.95rem; margin-bottom:12px; }
.card h3 i { color:var(--amber); margin-right:6px; }
.card.tip { border-left:3px solid var(--amber); }
.output { background:var(--bg); border:1px solid var(--border); border-radius:8px; padding:14px; margin-top:12px; font-family:'JetBrains Mono',monospace; font-size:0.75rem; color:var(--dim); overflow-x:auto; max-height:200px; white-space:pre-wrap; word-break:break-all; }
.code-block { background:var(--bg); border:1px solid var(--border); border-radius:8px; padding:14px; font-family:'JetBrains Mono',monospace; font-size:0.8rem; color:var(--amber); overflow-x:auto; white-space:pre-wrap; }
.btn { padding:12px 24px; background:var(--amber); color:var(--bg); border:none; border-radius:10px; font-weight:700; font-size:0.85rem; cursor:pointer; font-family:inherit; }
.btn:hover { background:var(--amber-d); }
.btn.full { width:100%; }
.dl-row { display:flex; gap:10px; margin-bottom:16px; }
.dl-btn { display:inline-flex; align-items:center; gap:6px; padding:10px 20px; background:var(--bg2); border:1px solid var(--border); border-radius:10px; color:var(--dim); text-decoration:none; font-size:0.85rem; font-weight:500; }
.dl-btn:hover { border-color:var(--amber); color:var(--amber); }
.dl-btn i { color:var(--amber); }
.flag-row { display:flex; gap:10px; }
.flag-row input { flex:1; padding:12px 14px; background:var(--bg); border:1px solid var(--border); border-radius:10px; color:var(--white); font-size:0.9rem; outline:none; font-family:inherit; }
.ok { margin-top:12px; padding:12px; background:rgba(34,197,94,0.08); border:1px solid rgba(34,197,94,0.2); border-radius:8px; color:var(--green); font-weight:600; }
.fail { margin-top:12px; padding:12px; background:rgba(239,68,68,0.08); border:1px solid rgba(239,68,68,0.2); border-radius:8px; color:var(--red); }
@media(max-width:600px) { .params-grid{grid-template-columns:repeat(2,1fr);} .flag-row,.dl-row{flex-direction:column;} }