.site-banner {
  position: fixed;
  left: max(22px, env(safe-area-inset-left));
  bottom: max(22px, env(safe-area-inset-bottom));
  z-index: var(--z-toast, 999);
  width: min(460px, calc(100vw - 44px));
  padding: 20px 22px;
  border: 1px solid var(--glass-border, #353b40);
  border-top-color: var(--glass-border-top, #5b6266);
  border-radius: var(--radius-lg, 22px);
  background: var(--glass-bg, color-mix(in srgb, #191c1f 92%, transparent));
  -webkit-backdrop-filter: blur(var(--glass-float-blur, 32px)) saturate(var(--glass-float-saturate, 100%));
  backdrop-filter: blur(var(--glass-float-blur, 32px)) saturate(var(--glass-float-saturate, 100%));
  box-shadow: inset 0 1px color-mix(in srgb, white 12%, transparent), 0 18px 52px rgb(0 0 0 / 34%);
  color: var(--text, #e9eaeb);
  font-family: var(--font, sans-serif);
  overflow: hidden;
}

.site-banner::before {
  position: absolute;
  inset: 0 18% auto;
  height: 1px;
  background: linear-gradient(90deg, transparent, color-mix(in srgb, var(--accent, #a2cbb1) 75%, white), transparent);
  content: "";
  pointer-events: none;
}

.site-banner > * { position: relative; }
.site-banner[hidden] { display: none; }

.site-banner-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
}

.site-banner-title {
  margin: 0;
  color: var(--text, #e9eaeb);
  font-size: 1.05rem;
  font-weight: 650;
  letter-spacing: -0.025em;
  line-height: 1.35;
}

.site-banner-close {
  display: grid;
  flex: 0 0 30px;
  width: 30px;
  height: 30px;
  place-items: center;
  margin: -0.35rem -0.4rem 0 0;
  padding: 0;
  border: 1px solid transparent;
  border-radius: 50%;
  background: transparent;
  color: var(--text-muted, #9ba0a4);
  font: 400 1.35rem/1 var(--font, sans-serif);
  cursor: pointer;
  transition: background-color 160ms ease, border-color 160ms ease, color 160ms ease;
}

.site-banner-close:hover {
  border-color: var(--glass-border, #353b40);
  background: color-mix(in srgb, white 7%, transparent);
  color: var(--text, #e9eaeb);
}

.cookie-notice { animation: site-banner-in 360ms var(--ease-expo, cubic-bezier(.16, 1, .3, 1)) both; }
.cookie-notice p { margin: 8px 0 0; color: var(--text-muted, #a9afb3); font-size: 14px; line-height: 1.55; }

.site-banner-actions {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  gap: 10px;
  margin-top: 16px;
}

.site-banner-button {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  justify-content: center;
  padding: 0 15px;
  border: 1px solid var(--glass-border, #353b40);
  border-radius: 999px;
  color: var(--text, #e9eaeb);
  font: 550 0.73rem/1.3 var(--font, sans-serif);
  text-decoration: none;
  text-align: center;
  cursor: pointer;
  transition: transform 160ms ease, background-color 160ms ease, border-color 160ms ease, color 160ms ease;
}

.site-banner-button:hover {
  transform: translateY(-1px);
  border-color: color-mix(in srgb, var(--accent, #a2cbb1) 65%, transparent);
}

.site-banner-button--primary {
  border-color: color-mix(in srgb, var(--accent, #a2cbb1) 58%, transparent);
  background: color-mix(in srgb, var(--accent, #a2cbb1) 17%, transparent);
  color: var(--accent, #a2cbb1);
}

.site-banner-button--primary:hover { background: color-mix(in srgb, var(--accent, #a2cbb1) 24%, transparent); }
.site-banner-button--secondary { background: color-mix(in srgb, white 3%, transparent); }
.site-banner-button--secondary:hover { background: color-mix(in srgb, white 7%, transparent); }
.site-banner-close:focus-visible, .site-banner-button:focus-visible { outline: 2px solid var(--accent, #a2cbb1); outline-offset: 3px; }

@keyframes site-banner-in {
  from { opacity: 0; transform: translateY(10px) scale(0.985); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}

@media (max-width: 680px) {
  .site-banner { left: max(16px, env(safe-area-inset-left)); bottom: max(16px, env(safe-area-inset-bottom)); width: calc(100vw - 32px); padding: 17px 18px; }
  .cookie-notice { align-items: stretch; }
  .cookie-notice p { font-size: 13px; }
  .site-banner-actions { gap: 8px; }
  .site-banner-button { min-height: 44px; padding: 0 13px; }
  .engagement-prompt-actions { flex-wrap: wrap; }
}

@media (max-width: 1024px) {
  body:has(#cookie-notice:not([hidden])) #chat-launcher,
  body:has(#cookie-notice:not([hidden])) .role-fit-launcher { visibility: hidden; pointer-events: none; }
}

@media (prefers-reduced-motion: reduce) {
  .cookie-notice, .engagement-prompt { animation: none; }
  .site-banner-close, .site-banner-button { transition: none; }
}