.mission-invite-tab {
  position: fixed;
  z-index: 1001;
  top: 50%;
  right: 0;
  width: 40px;
  min-height: 174px;
  padding: 15px 8px;
  border: 0;
  border-radius: 12px 0 0 12px;
  background: #173f36;
  color: #fff8e8;
  box-shadow: 0 8px 28px rgba(16, 39, 34, .24);
  cursor: pointer;
  transform: translateY(-50%);
  transition: background-color .2s ease, box-shadow .2s ease, opacity .2s ease;
}

.mission-invite-tab::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 3px;
  height: 100%;
  border-radius: 12px 0 0 12px;
  background: #d6aa51;
}

.mission-invite-tab span {
  display: inline-block;
  font-size: 11px;
  font-weight: 800;
  line-height: 1;
  letter-spacing: .16em;
  text-transform: uppercase;
  white-space: nowrap;
  writing-mode: vertical-rl;
  transform: rotate(180deg);
}

.mission-invite-tab:hover,
.mission-invite-tab:focus-visible {
  background: #205044;
  box-shadow: 0 10px 32px rgba(16, 39, 34, .34);
  outline: 3px solid rgba(214, 170, 81, .48);
  outline-offset: 2px;
}

.mission-invite-tab.is-panel-open {
  opacity: 0;
  pointer-events: none;
}

.mission-invite-panel {
  position: fixed;
  z-index: 1002;
  top: 50%;
  right: 0;
  width: min(430px, calc(100vw - 48px));
  max-height: calc(100vh - 48px);
  overflow-y: auto;
  padding: 31px 34px 27px;
  border-left: 4px solid #d6aa51;
  border-radius: 18px 0 0 18px;
  background: linear-gradient(150deg, #173f36 0%, #102f29 100%);
  color: #f8f3e8;
  box-shadow: -14px 18px 50px rgba(12, 32, 28, .32);
  opacity: 0;
  visibility: hidden;
  transform: translate(104%, -50%);
  transition: transform .34s cubic-bezier(.22, .76, .26, 1), opacity .22s ease, visibility .34s;
}

.mission-invite-panel.is-open {
  opacity: 1;
  visibility: visible;
  transform: translate(0, -50%);
}

.mission-invite-close {
  position: absolute;
  top: 11px;
  right: 15px;
  width: 34px;
  height: 34px;
  padding: 0;
  border: 1px solid rgba(255, 255, 255, .25);
  border-radius: 50%;
  background: rgba(255, 255, 255, .08);
  color: #fff;
  font: 300 25px/30px Arial, sans-serif;
  cursor: pointer;
}

.mission-invite-close:hover,
.mission-invite-close:focus-visible {
  background: rgba(255, 255, 255, .16);
  outline: 2px solid #d6aa51;
  outline-offset: 2px;
}

.mission-invite-mark {
  display: grid;
  place-items: center;
  width: 43px;
  height: 43px;
  margin-bottom: 13px;
  border: 1px solid rgba(214, 170, 81, .55);
  border-radius: 50%;
  color: #e7bf70;
}

.mission-invite-mark .site-icon {
  width: 24px;
  height: 24px;
}

.mission-invite-eyebrow {
  margin: 0 0 7px;
  color: #e7bf70;
  font-size: 11px;
  font-weight: 800;
  letter-spacing: .18em;
  text-transform: uppercase;
}

.mission-invite-panel h2 {
  margin: 0 0 13px;
  color: #fff;
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(28px, 3vw, 38px);
  font-weight: 500;
  line-height: 1.08;
}

.mission-invite-panel > p:not(.mission-invite-eyebrow) {
  margin: 0 0 20px;
  color: rgba(255, 255, 255, .84);
  font-size: 16px;
  line-height: 1.65;
}

.mission-invite-action {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  width: 100%;
  padding: 15px 18px;
  border-radius: 8px;
  background: #d6aa51;
  color: #17352e;
  font-size: 14px;
  font-weight: 800;
  letter-spacing: .025em;
  text-decoration: none;
  transition: background-color .2s ease, transform .2s ease;
}

.mission-invite-action:hover,
.mission-invite-action:focus-visible {
  background: #e7bf70;
  transform: translateY(-1px);
  outline: 3px solid rgba(255, 255, 255, .34);
  outline-offset: 2px;
}

@media (max-width: 640px) {
  .mission-invite-tab {
    top: 44%;
    width: 35px;
    min-height: 153px;
    padding: 13px 7px;
  }

  .mission-invite-tab span {
    font-size: 10px;
    letter-spacing: .13em;
  }

  .mission-invite-panel {
    top: 50%;
    width: calc(100vw - 34px);
    max-height: calc(100vh - 28px);
    padding: 27px 23px 22px;
    border-radius: 15px 0 0 15px;
  }

  .mission-invite-mark {
    width: 39px;
    height: 39px;
    margin-bottom: 11px;
  }

  .mission-invite-panel h2 {
    font-size: clamp(26px, 8.5vw, 34px);
  }

  .mission-invite-panel > p:not(.mission-invite-eyebrow) {
    font-size: 15px;
    line-height: 1.55;
  }
}

@media (prefers-reduced-motion: reduce) {
  .mission-invite-tab,
  .mission-invite-panel,
  .mission-invite-action {
    transition: none;
  }
}