/* Konu sayfalarında alt bar kullanılmaz. */
.footer { display: none !important; }

/* Konu sayfalarında ana sayfadaki ortak üst bar */
.topbar {
  align-items: center;
  background: rgba(255, 250, 248, 0.9) !important;
  backdrop-filter: blur(24px) !important;
  border-bottom: 1px solid rgba(234, 223, 228, 0.95) !important;
  gap: 16px !important;
  padding: 13px clamp(16px, 4vw, 60px) !important;
}

.brand { color: #30323a !important; gap: 11px !important; }

.brand-mark {
  background: linear-gradient(135deg, #30323a, #4a4d59) !important;
  border-radius: 10px !important;
  height: 44px !important;
  width: 44px !important;
}

.mark-eye { background: #fff !important; height: 10px !important; width: 10px !important; }
.mark-eye::after { background: #30323a !important; height: 4px !important; left: 3px !important; right: auto !important; top: 3px !important; width: 4px !important; }
.mark-lens { background: transparent !important; border: 2px solid #fed3d9 !important; bottom: auto !important; height: 11px !important; margin-left: 1px !important; position: relative !important; right: auto !important; width: 11px !important; }
.mark-lens::after { background: #fed3d9 !important; border-radius: 3px !important; content: ""; height: 8px !important; position: absolute !important; right: -5px !important; top: 7px !important; transform: rotate(-42deg) !important; width: 2px !important; }

.brand strong { color: #30323a !important; font-family: "Source Sans 3", sans-serif !important; font-size: 1rem !important; font-weight: 700 !important; }
.brand small { color: #6d7079 !important; font-size: .8rem !important; font-weight: 700 !important; margin-top: 3px !important; }
.nav a { color: #30323a !important; font-family: "Nunito", sans-serif !important; font-size: .84rem !important; font-weight: 900 !important; opacity: .88 !important; }
.nav a:hover { background: transparent !important; color: #30323a !important; }
.button.outline { background: #fff !important; border-color: #eadfe4 !important; color: #30323a !important; }

.topic-teaching-note {
  background: linear-gradient(135deg, #fffaf8, #f2fbfd);
  border: 1px solid rgba(85,185,199,.25);
  border-radius: 12px;
  color: #30323a;
  line-height: 1.6;
  margin: -6px 0 28px;
  padding: 14px 16px;
}
.topic-teaching-note span {
  color: #278e9d;
  display: block;
  font-family: Nunito, sans-serif;
  font-size: .72rem;
  font-weight: 900;
  letter-spacing: .08em;
  margin-bottom: 5px;
  text-transform: uppercase;
}
.topic-teaching-note p { margin: 0; }