:root{
  --bg:#08080c;
  --bg-elev:#0f0f16;
  --surface:rgba(255,255,255,.045);
  --surface-hover:rgba(255,255,255,.075);
  --border:rgba(255,255,255,.09);
  --border-strong:rgba(255,255,255,.16);
  --text:#f4f4f7;
  --text-dim:#a6a6b3;
  --text-faint:#6b6b78;
  --accent1:#8b5cf6;
  --accent2:#22d3ee;
  --accent-grad:linear-gradient(135deg,var(--accent1),var(--accent2));
  --success:#34d399;
  --danger:#f87171;
  --warn:#fbbf24;
  --radius-sm:8px;
  --radius:14px;
  --radius-lg:22px;
  --font:'Inter',system-ui,-apple-system,sans-serif;
  --mono:'JetBrains Mono',ui-monospace,Menlo,monospace;
  --ease:cubic-bezier(.16,1,.3,1);
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
@media (prefers-reduced-motion:reduce){*,*::before,*::after{animation-duration:.01ms!important;transition-duration:.01ms!important}}
body{
  font-family:var(--font);
  background:var(--bg);
  color:var(--text);
  line-height:1.5;
  min-height:100dvh;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:none;cursor:pointer}
input,select,textarea{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--accent2);outline-offset:3px;border-radius:4px}

.bg-ambience{position:fixed;inset:0;z-index:-1;overflow:hidden;pointer-events:none}
.bg-ambience::before,.bg-ambience::after{content:'';position:absolute;width:56vmax;height:56vmax;border-radius:50%;filter:blur(90px);opacity:.2}
.bg-ambience::before{background:var(--accent1);top:-18vmax;left:-14vmax}
.bg-ambience::after{background:var(--accent2);bottom:-20vmax;right:-16vmax}

.site-header{position:sticky;top:0;z-index:100;background:rgba(8,8,12,.72);backdrop-filter:blur(14px);border-bottom:1px solid var(--border)}
.nav{max-width:1180px;margin:0 auto;padding:0 24px;display:flex;align-items:center;justify-content:space-between;gap:12px;height:68px}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:17px;letter-spacing:-.01em;min-width:0}
.brand-mark{width:30px;height:30px;border-radius:9px;background:var(--accent-grad);display:flex;align-items:center;justify-content:center;font-family:var(--mono);font-weight:700;font-size:15px;color:#fff;flex-shrink:0}
.brand .tag{font-family:var(--mono);font-size:12px;color:var(--text-faint);font-weight:500;margin-left:2px}
@media (max-width:480px){
  .nav{padding:0 16px}
  .brand{font-size:15px}
  .brand .tag{display:none}
  .nav .btn{padding:8px 12px;font-size:13px}
}

.container{max-width:1180px;margin:0 auto;padding:0 24px}
@media (max-width:640px){.container{padding:0 20px}}

.page-head{padding:64px 0 40px;text-align:center}
.eyebrow{display:inline-flex;align-items:center;gap:8px;padding:7px 14px;border-radius:999px;border:1px solid var(--border-strong);background:var(--surface);font-size:13px;color:var(--text-dim);font-family:var(--mono)}
.page-head h1{font-size:clamp(28px,4.5vw,44px);font-weight:800;letter-spacing:-.03em;margin:18px auto 0}
.page-head p{margin:14px auto 0;max-width:520px;color:var(--text-dim);font-size:16px}

.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:11px 20px;border-radius:10px;font-weight:600;font-size:14.5px;min-height:44px;transition:transform .15s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease),border-color .2s var(--ease);white-space:nowrap}
.btn:active{transform:scale(.96)}
.btn-primary{background:var(--accent-grad);color:#fff}
.btn-primary:hover{box-shadow:0 8px 30px -6px rgba(139,92,246,.55)}
.btn-ghost{border:1px solid var(--border-strong);color:var(--text)}
.btn-ghost:hover{background:var(--surface-hover);border-color:var(--accent2)}
.btn-sm{padding:8px 14px;font-size:13.5px;min-height:38px}
.btn:disabled{opacity:.5;cursor:not-allowed;transform:none!important;box-shadow:none!important}
.btn .spinner{display:none}
.btn.loading .spinner{display:inline-block}
.btn.loading .btn-label{display:none}
.spinner{width:16px;height:16px;border-radius:50%;border:2px solid rgba(255,255,255,.35);border-top-color:#fff;animation:spin .7s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}

.gen-grid{display:grid;grid-template-columns:1fr 1fr;gap:28px;align-items:start;padding-bottom:90px}
@media (max-width:900px){.gen-grid{grid-template-columns:1fr}}

.panel{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);padding:28px}
.field{margin-bottom:18px}
.field label{display:block;font-size:13.5px;font-weight:600;margin-bottom:7px}
.field .hint{font-size:12px;color:var(--text-faint);margin-top:6px}
.field input,.field textarea{width:100%;background:var(--bg);border:1px solid var(--border-strong);border-radius:10px;padding:12px 14px;font-size:14.5px;min-height:46px;transition:border-color .18s var(--ease),box-shadow .18s var(--ease)}
.field textarea{min-height:64px;resize:vertical}
.field input:focus,.field textarea:focus{border-color:var(--accent2);box-shadow:0 0 0 3px rgba(34,211,238,.15);outline:none}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
@media (max-width:480px){.field-row{grid-template-columns:1fr}}
.range-row{display:flex;align-items:center;gap:12px}
.range-row input[type=range]{flex:1;accent-color:var(--accent1);min-height:24px}
.range-val{font-family:var(--mono);font-size:13px;min-width:34px;text-align:right;color:var(--accent2)}
.form-error{display:none;font-size:13px;color:var(--danger);margin-top:6px}
.form-error.show{display:block}

.log-panel{background:var(--bg);border:1px solid var(--border);border-radius:var(--radius);min-height:300px;display:flex;flex-direction:column}
.log-head{display:flex;align-items:center;justify-content:space-between;padding:14px 18px;border-bottom:1px solid var(--border)}
.log-head .title{font-family:var(--mono);font-size:12.5px;color:var(--text-dim);display:flex;align-items:center;gap:8px}
.status-text{font-size:12.5px;color:var(--text-faint)}
.status-text.success{color:var(--success)}
.status-text.error{color:var(--danger)}
.log-body{flex:1;padding:16px 18px;font-family:var(--mono);font-size:12.8px;line-height:1.9;overflow-y:auto;max-height:340px}
.log-body .placeholder{color:var(--text-faint)}
.log-line{opacity:0;transform:translateY(4px);animation:logIn .35s var(--ease) forwards;display:flex;gap:8px}
@keyframes logIn{to{opacity:1;transform:translateY(0)}}
.log-line.ok{color:var(--success)}
.log-line.warn{color:var(--warn)}
.log-line.err{color:var(--danger)}
.log-line.info{color:var(--text-dim)}

.result-tabs{display:flex;gap:6px;margin-top:20px;border-bottom:1px solid var(--border)}
.result-tabs button{padding:10px 4px;font-size:13.5px;font-weight:600;color:var(--text-faint);border-bottom:2px solid transparent;margin-right:18px;transition:color .18s var(--ease),border-color .18s var(--ease)}
.result-tabs button[aria-selected="true"]{color:var(--text);border-color:var(--accent2)}
.result-body{display:none}
.result-body.active{display:block}
.result-body pre{background:var(--bg);border:1px solid var(--border);border-radius:var(--radius-sm);padding:16px;font-family:var(--mono);font-size:12.5px;line-height:1.7;color:var(--text-dim);max-height:280px;overflow:auto;margin-top:14px;white-space:pre-wrap;word-break:break-word}
.result-actions{display:flex;gap:10px;margin-top:16px;flex-wrap:wrap}
#resultsWrap{display:none}

footer{border-top:1px solid var(--border);padding:32px 0;text-align:center}
footer p{font-size:13px;color:var(--text-faint)}
footer a{color:var(--text-dim)}
footer a:hover{color:var(--text)}