.settings-appearance-card {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 28px;
  margin-bottom: 16px;
  padding: 22px 24px;
  border: 1px solid var(--border2);
  border-radius: 17px;
  background:
    radial-gradient(circle at 88% 0, color-mix(in srgb, var(--theme-accent-1, #22b8f0) 15%, transparent), transparent 34%),
    linear-gradient(145deg, #0d2943, #071827);
  box-shadow: inset 0 1px rgba(255,255,255,.06), 0 14px 30px rgba(0,0,0,.23);
}

.settings-appearance-card__eyebrow,
.system-colors-nav__eyebrow {
  color: var(--theme-accent-1, #22b8f0);
  font: 800 10px/1.2 "IBM Plex Mono", Consolas, monospace;
  letter-spacing: .14em;
  text-transform: uppercase;
}

.settings-appearance-card h2 { margin: 6px 0 6px; font-size: 22px; }
.settings-appearance-card p { max-width: 760px; margin: 0 0 7px; color: var(--text2); font-size: 12px; line-height: 1.55; }
.settings-appearance-card span { color: var(--text3); font-size: 10px; }

.system-colors-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 14px;
  padding: 20px 22px;
  border: 1px solid var(--border2);
  border-radius: 17px;
  background: linear-gradient(145deg, #0d2943, #071827);
}
.system-colors-nav h1 { margin: 5px 0; font-size: 27px; }
.system-colors-nav p { margin: 0; color: var(--text2); font-size: 11px; }

.system-colors-frame {
  display: block;
  width: 100%;
  height: 1180px;
  overflow: hidden;
  border: 1px solid var(--border2);
  border-radius: 22px;
  background: #061426;
  box-shadow: 0 22px 54px rgba(0,0,0,.34);
}

@media (max-width: 760px) {
  .settings-appearance-card { grid-template-columns: 1fr; gap: 16px; }
  .settings-appearance-card .btn { width: 100%; justify-content: center; }
  .system-colors-nav { align-items: stretch; flex-direction: column; }
  .system-colors-nav .btn { width: 100%; justify-content: center; }
  .system-colors-frame { height: 1900px; }
}