:root {
  --brand-flow-duration: 6.5s;
  --brand-flow-cyan: #25dce8;
  --brand-flow-pink: #f04daf;
}

.shared-brand-logo {
  display: block;
  max-width: 100%;
  max-height: 54px;
  object-fit: contain;
  object-position: left center;
}

.brand-flow-wrap {
  position: relative;
  isolation: isolate;
  display: inline-flex;
  align-items: center;
  max-width: 100%;
  padding: 4px 5px;
}

.brand-flow-wrap::after {
  content: "";
  position: absolute;
  z-index: 1;
  inset: 4px 5px;
  opacity: 0;
  background: linear-gradient(
    105deg,
    transparent 0 22%,
    var(--brand-flow-cyan) 35%,
    rgba(255,255,255,.96) 45%,
    var(--brand-flow-pink) 56%,
    transparent 70% 100%
  );
  background-size: 260% 100%;
  -webkit-mask-image: var(--brand-logo-mask);
  mask-image: var(--brand-logo-mask);
  -webkit-mask-size: contain;
  mask-size: contain;
  -webkit-mask-repeat: no-repeat;
  mask-repeat: no-repeat;
  -webkit-mask-position: left center;
  mask-position: left center;
  filter: drop-shadow(0 0 5px rgba(37, 220, 232, .45));
  mix-blend-mode: screen;
  pointer-events: none;
}

.brand-flow-enabled .brand-flow-wrap::after {
  opacity: .95;
  animation: brand-flow-line var(--brand-flow-duration) linear infinite;
}

.brand-flow-enabled .brand-flow-wrap .shared-brand-logo {
  animation: brand-flow-glow var(--brand-flow-duration) linear infinite;
}

@keyframes brand-flow-line {
  from { background-position: 145% 0; }
  to { background-position: -145% 0; }
}

@keyframes brand-flow-glow {
  0%, 100% {
    filter: drop-shadow(-4px 0 6px rgba(37, 220, 232, .22))
      drop-shadow(4px 0 7px rgba(240, 77, 175, .12));
  }
  50% {
    filter: drop-shadow(4px 0 7px rgba(37, 220, 232, .12))
      drop-shadow(-4px 0 6px rgba(240, 77, 175, .25));
  }
}

.brand-flow-settings {
  width: 100%;
  max-width: 920px;
  margin: 20px 0;
  padding: 18px;
  border: 1px solid rgba(72, 188, 209, .3);
  border-radius: 16px;
  color: #eef8fb;
  background: linear-gradient(145deg, rgba(13, 36, 52, .96), rgba(7, 20, 31, .97));
  box-shadow: 0 12px 28px rgba(0, 0, 0, .18), 0 0 15px rgba(32, 214, 226, .05);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

.brand-flow-settings * { box-sizing: border-box; }
.brand-flow-settings header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 16px;
}
.brand-flow-settings h2 { margin: 0 0 4px; font-size: 20px; }
.brand-flow-settings p { margin: 0; color: #8fa9b7; font-size: 13px; }
.brand-flow-preview {
  min-width: 175px;
  display: flex;
  justify-content: flex-end;
}
.brand-flow-preview .shared-brand-logo { width: 165px; }
.brand-flow-control {
  display: grid;
  grid-template-columns: minmax(150px, .7fr) minmax(220px, 1.3fr) 58px;
  align-items: center;
  gap: 14px;
  padding: 14px;
  border: 1px solid rgba(83, 150, 179, .2);
  border-radius: 12px;
  background: rgba(5, 17, 27, .62);
}
.brand-flow-control strong { display: block; font-size: 14px; }
.brand-flow-control small { color: #829baa; }
.brand-flow-control input[type="range"] {
  width: 100%;
  accent-color: #ee48ae;
  cursor: pointer;
}
.brand-flow-value {
  min-height: 36px;
  display: grid;
  place-items: center;
  border: 1px solid rgba(37, 220, 232, .35);
  border-radius: 9px;
  color: #75f4fa;
  background: rgba(20, 132, 145, .13);
  font-weight: 900;
}
.brand-flow-actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-top: 13px;
}
.brand-flow-toggle {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: #a9bec9;
  font-size: 13px;
}
.brand-flow-toggle input { accent-color: #35e484; }
.brand-flow-save {
  min-height: 40px;
  padding: 0 17px;
  border: 1px solid rgba(37, 220, 232, .45);
  border-radius: 10px;
  color: #a8f9fc;
  background: rgba(17, 103, 117, .3);
  font-weight: 800;
  cursor: pointer;
}
.brand-flow-save:disabled { cursor: wait; opacity: .55; }
.brand-flow-message { min-height: 18px; margin-top: 8px !important; text-align: right; }
.brand-flow-message.error { color: #ff87ac; }
.brand-flow-message.ok { color: #69eca0; }

@media (max-width: 700px) {
  .brand-flow-settings header { align-items: flex-start; flex-direction: column; }
  .brand-flow-preview { justify-content: flex-start; }
  .brand-flow-control { grid-template-columns: 1fr 54px; }
  .brand-flow-control > span { grid-column: 1 / -1; }
}

@media (prefers-reduced-motion: reduce) {
  .brand-flow-enabled .brand-flow-wrap::after,
  .brand-flow-enabled .brand-flow-wrap .shared-brand-logo {
    animation: none;
  }
}