.zc-activity-button {
  position: fixed;
  z-index: 1450;
  right: 16px;
  bottom: calc(84px + env(safe-area-inset-bottom, 0px));
  width: 52px;
  height: 52px;
  border: 1px solid rgba(255,255,255,.18);
  border-radius: 17px;
  display: grid;
  place-items: center;
  background: #061a2f;
  color: white;
  box-shadow: 0 14px 34px rgba(6,26,47,.28);
  font: inherit;
  cursor: pointer;
}

.zc-activity-button[hidden] { display: none !important; }
.zc-activity-button > span { font-size: 22px; line-height: 1; }

.zc-activity-button b {
  position: absolute;
  top: -7px;
  right: -7px;
  min-width: 20px;
  height: 20px;
  padding: 0 5px;
  border: 2px solid white;
  border-radius: 999px;
  display: grid;
  place-items: center;
  background: #f26b38;
  color: white;
  font-size: 10px;
  line-height: 1;
  font-weight: 900;
}

.zc-activity-button b[hidden] { display: none; }

.zc-activity-overlay {
  position: fixed;
  inset: 0;
  z-index: 1600;
}

.zc-activity-overlay[hidden] { display: none !important; }

.zc-activity-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(6,26,47,.58);
  backdrop-filter: blur(4px);
}

.zc-activity-panel {
  position: absolute;
  top: 12px;
  right: 12px;
  bottom: 12px;
  width: min(460px, calc(100% - 24px));
  display: flex;
  flex-direction: column;
  overflow: hidden;
  border: 1px solid rgba(255,255,255,.28);
  border-radius: 24px;
  background: #f6f9fb;
  box-shadow: 0 24px 70px rgba(6,26,47,.34);
}

.zc-activity-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 22px 20px 18px;
  background: #061a2f;
  color: white;
}

.zc-activity-header h2 {
  margin: 3px 0 0;
  color: white;
  font-size: 25px;
  line-height: 1.15;
}

.zc-activity-eyebrow {
  display: block;
  color: #91d8d4;
  font-size: 11px;
  font-weight: 800;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.zc-activity-close {
  flex: 0 0 auto;
  width: 40px;
  height: 40px;
  border: 1px solid rgba(255,255,255,.2);
  border-radius: 13px;
  display: grid;
  place-items: center;
  background: rgba(255,255,255,.09);
  color: white;
  font-size: 25px;
  line-height: 1;
  cursor: pointer;
}

.zc-activity-content {
  min-height: 0;
  overflow-y: auto;
  overscroll-behavior: contain;
  padding: 18px;
}

.zc-activity-intro {
  margin: 0 0 14px;
  color: #52677f;
  font-size: 14px;
  line-height: 1.5;
}

.zc-activity-summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 12px;
  padding: 13px 14px;
  border: 1px solid #dce6ed;
  border-radius: 15px;
  background: white;
  color: #52677f;
  font-size: 13px;
}

.zc-activity-summary strong {
  color: #061a2f;
  font-size: 21px;
}

.zc-activity-summary button,
.zc-activity-notice button,
.zc-activity-more {
  border: 1px solid #9ccfce;
  border-radius: 11px;
  padding: 9px 12px;
  background: #edf9f8;
  color: #0d6663;
  font: inherit;
  font-size: 12px;
  font-weight: 800;
  cursor: pointer;
}

.zc-activity-filters {
  display: flex;
  gap: 8px;
  margin-bottom: 14px;
}

.zc-activity-filters button {
  border: 1px solid #d8e3ea;
  border-radius: 999px;
  padding: 8px 12px;
  background: white;
  color: #52677f;
  font: inherit;
  font-size: 12px;
  font-weight: 800;
  cursor: pointer;
}

.zc-activity-filters button.active {
  border-color: #16aaa4;
  background: #e5f7f5;
  color: #0a6c68;
}

.zc-activity-list {
  display: grid;
  gap: 10px;
}

.zc-activity-card {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 40px;
  overflow: hidden;
  border: 1px solid #dce6ed;
  border-radius: 17px;
  background: white;
  box-shadow: 0 7px 20px rgba(6,26,47,.045);
}

.zc-activity-card.is-unread {
  border-color: rgba(22,170,164,.55);
  background: linear-gradient(90deg, #ecfaf8, white 42%);
}

.zc-activity-main {
  min-width: 0;
  border: 0;
  padding: 14px 12px;
  display: flex;
  align-items: flex-start;
  gap: 11px;
  background: transparent;
  color: inherit;
  text-align: left;
  font: inherit;
  cursor: pointer;
}

.zc-activity-icon {
  flex: 0 0 42px;
  width: 42px;
  height: 42px;
  border-radius: 13px;
  display: grid;
  place-items: center;
  background: #dff5f3;
  color: #061a2f;
  font-size: 19px;
  font-weight: 900;
}

.zc-activity-copy {
  min-width: 0;
  display: grid;
  gap: 4px;
}

.zc-activity-title-row {
  display: flex;
  align-items: center;
  gap: 7px;
  color: #10233f;
}

.zc-activity-title-row strong {
  font-size: 14px;
  line-height: 1.3;
}

.zc-activity-dot {
  flex: 0 0 8px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #f26b38;
}

.zc-activity-body {
  color: #455b73;
  font-size: 13px;
  line-height: 1.45;
}

.zc-activity-copy small {
  color: #8190a2;
  font-size: 11px;
}

.zc-activity-archive {
  border: 0;
  border-left: 1px solid #e2e9ee;
  background: rgba(244,247,250,.84);
  color: #8695a7;
  font-size: 22px;
  cursor: pointer;
}

.zc-activity-archive:disabled { opacity: .45; cursor: default; }

.zc-activity-empty,
.zc-activity-loading,
.zc-activity-notice {
  min-height: 210px;
  border: 1px dashed #d4e0e7;
  border-radius: 17px;
  display: grid;
  place-content: center;
  justify-items: center;
  gap: 10px;
  padding: 22px;
  background: rgba(255,255,255,.72);
  color: #66798e;
  text-align: center;
}

.zc-activity-empty > span {
  width: 46px;
  height: 46px;
  border-radius: 15px;
  display: grid;
  place-items: center;
  background: #e7f7f5;
  color: #0c7772;
  font-size: 22px;
  font-weight: 900;
}

.zc-activity-empty p,
.zc-activity-loading p,
.zc-activity-notice p {
  margin: 0;
  font-size: 13px;
  line-height: 1.45;
}

.zc-activity-loading > span {
  width: 28px;
  height: 28px;
  border: 3px solid #dbe5eb;
  border-top-color: #16aaa4;
  border-radius: 50%;
  animation: zc-activity-spin .8s linear infinite;
}

.zc-activity-more {
  width: 100%;
  margin-top: 12px;
  padding: 11px 14px;
}

body.zc-activity-open { overflow: hidden; }

@keyframes zc-activity-spin {
  to { transform: rotate(360deg); }
}

@media (min-width: 900px) {
  .zc-activity-button {
    bottom: 22px;
    right: 22px;
  }
}

@media (max-width: 620px) {
  .zc-activity-panel {
    top: auto;
    right: 6px;
    bottom: 6px;
    left: 6px;
    width: auto;
    height: min(82vh, 720px);
    border-radius: 22px;
  }

  .zc-activity-header {
    padding: 18px 16px 15px;
  }

  .zc-activity-content {
    padding: 14px;
  }
}