:root{
  --purple:#7c42f5;
  --purple2:#a55cf7;
  --text:#2b2158;
  --muted:#756b98;
  --line:#e8ddff;
  --surface:rgba(255,255,255,.84);
  --shadow:0 18px 45px rgba(112,79,184,.10);
}
*{box-sizing:border-box}
body{
  background:
    radial-gradient(circle at top right, rgba(165,92,247,.13), transparent 25%),
    linear-gradient(180deg,#faf7ff 0%,#f4edff 100%);
  color:var(--text);
  margin:0;
  font-family:Inter, Arial, sans-serif;
}
a{text-decoration:none;color:inherit}
.aitg-wrap{max-width:1240px;margin:0 auto;padding:24px 18px}
.aitg-shell{max-width:1400px;margin:0 auto;padding:22px 18px 40px;display:flex;gap:18px;align-items:flex-start}
.aitg-sidebar{
  width:280px;flex:0 0 280px;background:linear-gradient(180deg,rgba(255,255,255,.78),rgba(244,235,255,.88));
  border:1px solid var(--line);border-radius:26px;padding:16px 12px;position:sticky;top:18px;box-shadow:var(--shadow)
}
.aitg-sidebar-brand{display:flex;align-items:center;gap:12px;padding:6px 8px 14px}
.aitg-sidebar-logo .custom-logo-link{display:flex}
.aitg-sidebar-logo img,.aitg-sidebar-logo-fallback{
  width:48px;height:48px;border-radius:14px;display:flex;align-items:center;justify-content:center;
  object-fit:contain;background:linear-gradient(135deg,var(--purple),var(--purple2));color:#fff;font-weight:800
}
.aitg-sidebar-brand-text strong{display:block;font-size:20px;line-height:1.1}
.aitg-sidebar-brand-text span{display:block;font-size:12px;color:var(--muted);margin-top:3px}
.aitg-home-link{
  display:block;padding:14px 16px;border-radius:16px;background:rgba(124,66,245,.08);font-weight:700;margin-bottom:12px;color:var(--text)
}
.aitg-home-link.is-active{
  background:linear-gradient(90deg,var(--purple),var(--purple2));color:#fff
}
.aitg-sidebar-group{
  background:rgba(255,255,255,.58);border:1px solid var(--line);border-radius:16px;margin-bottom:10px;overflow:hidden
}
.aitg-group-toggle{
  width:100%;background:transparent;border:0;padding:14px 14px;display:flex;justify-content:space-between;align-items:center;
  font-size:16px;font-weight:700;color:var(--text);cursor:pointer;text-align:left
}
.aitg-arrow{transition:transform .2s ease;color:var(--muted)}
.aitg-sidebar-group.is-open .aitg-arrow{transform:rotate(90deg)}
.aitg-submenu{display:none;padding:0 10px 12px}
.aitg-sidebar-group.is-open .aitg-submenu{display:block}
.aitg-submenu-item{
  display:flex;align-items:center;gap:8px;padding:10px 10px;border-radius:12px;font-size:14px;color:var(--muted);margin-top:4px
}
.aitg-submenu-item:before{content:"";width:6px;height:6px;border-radius:50%;background:var(--purple)}
.aitg-submenu-item:hover{background:rgba(124,66,245,.08);color:var(--text)}
.aitg-sidebar-legal{margin-top:14px;padding-top:12px;border-top:1px solid var(--line);display:grid;gap:8px}
.aitg-sidebar-legal a{
  padding:10px 12px;border-radius:12px;background:rgba(255,255,255,.45);color:var(--muted)
}
.aitg-main{flex:1;min-width:0}
.aitg-hero{
  background:radial-gradient(circle at 87% 18%, rgba(150,100,245,.30), transparent 14%),linear-gradient(135deg, rgba(255,255,255,.9), rgba(238,228,255,.88) 56%, rgba(215,188,255,.88));
  border:1px solid var(--line);border-radius:28px;padding:28px;box-shadow:var(--shadow)
}
.aitg-badges{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:14px}
.aitg-badges span{padding:8px 12px;border-radius:999px;background:rgba(255,255,255,.7);border:1px solid var(--line);font-size:13px;font-weight:700;color:#665a91}
.aitg-hero h1{font-size:64px;line-height:1.02;margin:0 0 10px}
.aitg-hero p{margin:0 0 16px;color:var(--muted);font-size:18px;max-width:820px}
.aitg-generator{max-width:860px;background:rgba(255,255,255,.9);border:1px solid var(--line);border-radius:24px;padding:18px;box-shadow:var(--shadow)}
.aitg-generator textarea{width:100%;min-height:120px;border:0;outline:0;resize:vertical;background:transparent;font-size:24px;color:var(--text)}
.aitg-controls{display:grid;grid-template-columns:160px 140px 160px 1fr;gap:10px;margin-top:12px}
.aitg-controls select,.aitg-controls button{height:50px;border-radius:14px;border:1px solid var(--line);padding:0 14px;font-size:15px}
.aitg-controls button{border:0;background:linear-gradient(90deg,var(--purple),var(--purple2));color:#fff;font-weight:700}
.aitg-section{margin-top:22px}
.aitg-section-head h2{margin:0 0 6px;font-size:34px}
.aitg-section-head p{margin:0 0 16px;color:var(--muted)}
.aitg-category-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
.aitg-category-link{
  display:block;background:var(--surface);border:1px solid var(--line);border-radius:22px;padding:20px;box-shadow:var(--shadow)
}
.aitg-category-link h3{margin:0 0 8px;font-size:24px}
.aitg-category-link p{margin:0 0 10px;color:var(--muted)}
.aitg-category-link span{display:inline-block;padding:10px 14px;border-radius:12px;background:rgba(124,66,245,.10);color:#6b56a8;font-weight:700}
.aitg-card-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}
.aitg-card{background:var(--surface);border:1px solid var(--line);border-radius:22px;padding:18px;box-shadow:var(--shadow)}
.aitg-card-icon{width:46px;height:46px;border-radius:14px;background:rgba(124,66,245,.10);display:grid;place-items:center;color:var(--purple);font-size:22px;margin-bottom:10px}
.aitg-card h3{margin:0 0 8px;font-size:20px}
.aitg-card p{margin:0 0 14px;color:var(--muted);min-height:42px}
.aitg-btn-light{display:inline-block;width:100%;text-align:center;height:42px;line-height:42px;border-radius:12px;background:rgba(124,66,245,.10);color:#6b56a8;font-weight:700}
.aitg-page-box{background:var(--surface);border:1px solid var(--line);border-radius:22px;padding:24px;box-shadow:var(--shadow)}
.aitg-page-box h1,.aitg-page-box h2{margin-top:0}
.aitg-breadcrumb{margin-bottom:12px;color:var(--muted)}
.aitg-footer{margin-top:20px;padding:26px 0 36px}
.aitg-footer-grid{display:grid;grid-template-columns:1.2fr 1fr 1fr;gap:24px;background:linear-gradient(135deg, rgba(255,255,255,.92), rgba(244,236,255,.9) 52%, rgba(225,208,255,.88));border:1px solid var(--line);border-radius:28px;padding:28px;box-shadow:var(--shadow)}
.aitg-footer h3,.aitg-footer h4{margin:0 0 10px}
.aitg-footer p{color:var(--muted);margin:0}
.aitg-footer a{display:block;color:var(--muted);margin:0 0 8px}
.aitg-footer-copy{padding-top:10px;color:var(--muted);font-size:14px}
@media (max-width:1180px){
  .aitg-shell{display:block}
  .aitg-sidebar{width:100%;position:relative;top:0;margin-bottom:18px}
  .aitg-card-grid,.aitg-category-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .aitg-controls{grid-template-columns:1fr 1fr}
  .aitg-hero h1{font-size:46px}
  .aitg-footer-grid{grid-template-columns:1fr}
}
@media (max-width:720px){
  .aitg-card-grid,.aitg-category-grid,.aitg-controls{grid-template-columns:1fr}
  .aitg-hero h1{font-size:38px}
}