:root {
   --bg: #f0f2f5;
   --card: #ffffff;
   --text: #212529;
   --muted: #5b6168;
   --primary: #007bff;
   --primaryDark: #001933;
   --border: #e6e8eb;
 }
 
 html, body {
   margin: 0;
   padding: 0;
   font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
   background: var(--bg);
   color: var(--text);
   line-height: 1.6;
 }
 
 a { color: var(--primary); }
 
 .container {
   max-width: 980px;
   margin: 0 auto;
   padding: 18px;
 }
 
 .header {
   display: flex;
   align-items: center;
   justify-content: space-between;
   gap: 12px;
   padding: 10px 0;
 }
 
 .brand {
   display: flex;
   align-items: center;
   gap: 12px;
   text-decoration: none;
   color: inherit;
 }
 
 .brand img {
   width: 52px;
   height: 52px;
   border-radius: 14px;
 }
 
 .brand img.brand-logo-xl {
   width: 96px;
   height: 96px;
   border-radius: 24px;
   border: 1px solid var(--border);
   background: #ffffff;
   box-shadow: 0 10px 26px rgba(0,0,0,0.14);
 }
 
 .theme-neuro h2,
 .theme-neuro .card h2 {
   color: #941750 !important;
 }
 
 .theme-neuro h1,
 .theme-neuro .hero h1 {
   color: #941750 !important;
 }
 
 .theme-neuro .brand-title strong {
   color: #941750 !important;
 }
 
.theme-neuro .btn-primary {
  background: #941750;
  color: #ffffff;
}

.theme-neuro {
  --primary: #941750;
  --primaryDark: #5b0e33;
  --primaryTint: rgba(148,23,80,0.10);
  --primaryBorder: rgba(148,23,80,0.20);
  --noteBg: #fff0f6;
  --noteBorder: #ffd0e3;
  --noteText: #5b0e33;
}

 .brand-title {
   display: flex;
   flex-direction: column;
   gap: 2px;
 }
 
 .brand-title strong {
   font-size: 16px;
 }
 
 .brand-title span {
   font-size: 12px;
   color: var(--muted);
 }
 
 .nav {
   display: flex;
   gap: 10px;
   flex-wrap: wrap;
   justify-content: flex-end;
 }
 
 .nav a {
   font-size: 14px;
   text-decoration: none;
   padding: 8px 12px;
   border-radius: 12px;
   border: 1px solid var(--border);
   background: var(--card);
   color: var(--text);
 }
 
 .hero {
  background: linear-gradient(180deg, var(--primaryTint, rgba(0,123,255,0.10)), rgba(0,123,255,0.00));
   border: 1px solid var(--border);
   border-radius: 22px;
   padding: 20px;
   margin-top: 12px;
 }
 
.hero-inner {
  display: grid;
  gap: 16px;
  align-items: center;
}

.hero-visual {
  border-radius: 18px;
  border: 1px solid var(--border);
  background: #ffffff;
  overflow: hidden;
}

.hero-photo {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
  aspect-ratio: 1200 / 820;
}

.hero-illustration {
  width: 100%;
  height: auto;
  display: block;
}

.badge-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0 0 16px 0;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 10px;
  border-radius: 999px;
  background: var(--card);
  border: 1px solid var(--border);
  color: var(--text);
  font-size: 12px;
  font-weight: 700;
}

.preview {
  border-radius: 18px;
  border: 1px solid var(--border);
  background: #ffffff;
  overflow: hidden;
}

.preview img {
  width: 100%;
  height: auto;
  display: block;
}

 .hero-tagline {
   margin: 0 0 10px 0;
   font-size: 14px;
   font-weight: 800;
   letter-spacing: 0.2px;
   color: #941750;
 }
 
 .hero-logo {
   display: block;
   margin: 4px auto 14px auto;
   width: 132px;
   height: 132px;
   border-radius: 24px;
  border: 2px solid var(--primaryBorder, rgba(0,123,255,0.25));
   background: #ffffff;
   box-shadow: 0 16px 34px rgba(0,0,0,0.18);
   object-fit: cover;
 }
 
 .hero h1 {
   margin: 0 0 8px 0;
   font-size: 28px;
   line-height: 1.15;
 }
 
 .hero p {
   margin: 0 0 16px 0;
   color: var(--muted);
 }
 
 .cta-row {
   display: flex;
   gap: 12px;
   flex-wrap: wrap;
 }
 
 .btn {
   display: inline-flex;
   align-items: center;
   justify-content: center;
   gap: 10px;
   padding: 12px 16px;
   border-radius: 14px;
   border: 1px solid transparent;
   cursor: pointer;
   text-decoration: none;
   font-weight: 700;
   font-size: 15px;
 }
 
 .btn-primary {
   background: var(--primaryDark);
   color: #ffffff;
 }
 
 .btn-secondary {
   background: var(--card);
   color: var(--text);
   border-color: var(--border);
 }
 
 .grid {
   display: grid;
   grid-template-columns: repeat(12, 1fr);
   gap: 12px;
   margin-top: 16px;
 }
 
 .card {
   grid-column: span 12;
   background: var(--card);
   border: 1px solid var(--border);
   border-radius: 18px;
   padding: 16px;
 }
 
 .card h2 {
   margin: 0 0 8px 0;
   font-size: 18px;
 }
 
 .card p {
   margin: 0;
   color: var(--muted);
 }
 
 .list {
   margin: 10px 0 0 0;
   padding-left: 18px;
   color: var(--muted);
 }
 
 .note {
  background: var(--noteBg, #e7f3ff);
  border: 1px solid var(--noteBorder, #b3d7ff);
   border-radius: 14px;
   padding: 12px 14px;
  color: var(--noteText, #0b3d75);
 }
 
 .footer {
   margin-top: 24px;
   padding: 18px 0;
   font-size: 13px;
   color: var(--muted);
 }
 
 .footer a { color: inherit; }
 
.accordion {
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 12px 14px;
  background: #ffffff;
}

.accordion summary {
  cursor: pointer;
  font-weight: 800;
  color: var(--text);
}

.accordion summary::-webkit-details-marker {
  display: none;
}

.accordion[open] summary {
  margin-bottom: 10px;
}

.accordion p {
  margin: 0 0 10px 0;
  color: var(--muted);
}

 @media (min-width: 760px) {
   .hero { padding: 28px; }
   .hero h1 { font-size: 36px; }
  .hero-inner { grid-template-columns: 1.15fr 0.85fr; }
   .card.span-6 { grid-column: span 6; }
   .card.span-4 { grid-column: span 4; }
 }
 
 button:focus, a:focus {
   outline: 3px solid #40e0d0;
   outline-offset: 2px;
 }