.brevo-tab {
  position: fixed;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  background: linear-gradient(180deg, #5bb112, #7ed321);
  color: #fff;
  width: 42px;
  height: 180px;
  padding: 10px 8px;
  border-top-right-radius: 18px;
  border-bottom-right-radius: 18px;
  cursor: pointer;
  transition: transform .16s ease, box-shadow .16s ease, background .16s ease;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-start;
  gap: 5px;
  box-shadow: 0 10px 34px rgba(0,0,0,0.28);
  z-index: 9999;
}
.brevo-tab:hover {
  background: linear-gradient(180deg, #6ed321, #5bb112);
  box-shadow: 0 16px 40px rgba(0,0,0,0.34);
  transform: translateY(-50%) translateX(3px);
}
.brevo-tab-icon {
  width: 18px;
  height: 20px;
  display: block;
  flex: 0 0 auto;
  margin-top: 6px;
}
.brevo-tab-label {
  display: block;
  writing-mode: vertical-rl;
  text-orientation: mixed;
  font-size: 14px;
  font-weight: 800;
  letter-spacing: 0.14em;
  line-height: 1;
  text-transform: uppercase;
}
.brevo-panel {
  position: fixed;
  left: 84px;
  bottom: 24px;
  width: 340px;
  max-width: 92vw;
  background: #ffffff;
  color: #111827;
  border-radius: 20px;
  box-shadow: 0 20px 65px rgba(15,23,42,0.22);
  padding: 20px 18px 16px;
  z-index: 10000;
  display: none;
  border: 1px solid rgba(91,177,18,0.35);
}
.brevo-panel::before {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  height: 3px;
  border-top-left-radius: 20px;
  border-top-right-radius: 20px;
  background: linear-gradient(90deg, #5bb112, #7ed321);
}
.brevo-panel.open {
  display: block;
  animation: brevo-popin .18s ease-out;
}
@keyframes brevo-popin {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}
.brevo-close {
  position: absolute;
  right: 10px;
  top: 8px;
  border: none;
  background: transparent;
  font-size: 20px;
  cursor: pointer;
  line-height: 1;
  color: #4b5563;
  opacity: 0.75;
  transition: opacity 0.15s ease, transform 0.1s ease;
}
.brevo-close:hover { opacity: 1; transform: scale(1.05); }
.brevo-head h3 {
  margin: 0 0 4px;
  font-size: 18px;
  font-weight: 800;
  letter-spacing: 0.01em;
}
.brevo-head p {
  margin: 0 0 12px;
  color: #4b5563;
  font-size: 13px;
}
#brevo-name, #brevo-email {
  width: 100%;
  padding: 9px 11px;
  border-radius: 11px;
  margin-bottom: 8px;
  font-size: 13px;
  border: 1px solid rgba(148,163,184,0.65);
  background: #ffffff;
  color: #111827;
}
#brevo-name::placeholder, #brevo-email::placeholder { color: #9ca3af; }
#brevo-name:focus, #brevo-email:focus {
  outline: none;
  border-color: #5bb112;
  box-shadow: 0 0 0 1px rgba(91,177,18,0.35);
}
.brevo-gdpr {
  display: block;
  font-size: 11px;
  color: #374151;
  margin: 6px 0 10px;
  line-height: 1.4;
}
.brevo-gdpr input[type="checkbox"] { margin-right: 6px; }
.brevo-gdpr a { color: #2563eb; text-decoration: underline; }
#brevo-submit {
  width: 100%;
  padding: 10px 14px;
  background: linear-gradient(135deg,#5bb112,#7ed321);
  color: #0b1120;
  border: none;
  border-radius: 999px;
  font-weight: 800;
  cursor: pointer;
  font-size: 13px;
  box-shadow: 0 12px 30px rgba(91,177,18,0.5);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  transition: transform .12s ease, box-shadow .12s ease;
}
#brevo-submit:disabled {
  opacity: .55;
  cursor: not-allowed;
  box-shadow: none;
}
#brevo-submit:hover:not(:disabled) {
  transform: translateY(-1px);
  box-shadow: 0 16px 40px rgba(91,177,18,0.55);
}
.brevo-msg {
  font-size: 12px;
  margin-top: 8px;
  min-height: 18px;
  color: #111827;
}
@media (max-width: 768px) {
  .brevo-tab {
    top: auto;
    bottom: 385px;
    right: 7px;
    left: auto;
    transform: none;
    width: 44px;
    height: 44px;
    padding: 0;
    border-radius: 999px;
    box-shadow: 0 8px 24px rgba(0,0,0,0.25);
  }
  .brevo-tab:hover {
    transform: none;
    box-shadow: 0 8px 24px rgba(0,0,0,0.25);
  }
  .brevo-tab-label { display: none; }
  .brevo-panel {
    left: 10px;
    right: 10px;
    bottom: 12px;
    width: auto;
    padding: 16px 14px 12px;
    border-radius: 18px;
  }
}