.activity-detail-hero {
  gap: 1rem;
  padding: clamp(1.05rem, 3vw, 1.55rem);
  border-top-color: var(--category-color, rgba(116, 157, 173, .2));
}

.activity-detail__header {
  align-items: flex-start;
}

.activity-detail__title-group {
  min-width: 0;
  display: grid;
  gap: .32rem;
}

.activity-detail__title-group .eyebrow {
  width: fit-content;
  font-size: 1.05rem;
  line-height: 1.2;
  letter-spacing: .055em;
}

.activity-detail__title-group .eyebrow::first-letter {
  font-size: 1.55rem;
}

.activity-detail__header > .status-badge {
  min-height: 34px;
  padding: .38rem .75rem;
  font-size: .86rem;
}

.activity-detail__summary {
  min-width: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: .52rem;
}

.activity-detail__meta {
  min-width: 0;
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  align-items: center;
  gap: .62rem;
  min-height: 52px;
  padding: .48rem .68rem;
  border: 1px solid #e2edf0;
  border-radius: 14px;
  background: #f8fbfc;
}

.activity-detail__meta-icon {
  width: 34px;
  height: 34px;
  display: grid;
  place-items: center;
  border-radius: 10px;
  background: #eaf4f7;
  font-size: 1rem;
}

.activity-detail__meta-body {
  min-width: 0;
  display: grid;
  grid-template-columns: 50px minmax(0, 1fr);
  align-items: center;
  gap: .28rem;
}

.activity-detail__meta-label {
  color: #8299a2;
  font-size: .72rem;
  font-weight: 800;
}

.activity-detail__meta-value {
  min-width: 0;
  padding-left: .62rem;
  border-left: 1px solid #d6e4e8;
  color: #45636e;
  font-size: .9rem;
  font-weight: 820;
  line-height: 1.42;
  overflow-wrap: anywhere;
}

.activity-detail__meta--schedule .activity-detail__meta-value {
  white-space: normal;
}

a.activity-detail__meta-value:hover {
  color: #365d6b;
  text-decoration: underline;
  text-underline-offset: 3px;
}

.activity-detail__organizer-value {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: .55rem;
}

.activity-detail__organizer-actions {
  display: flex;
  align-items: center;
  gap: .3rem;
  flex: 0 0 auto;
}

.activity-detail__organizer-profile,
.activity-organizer-transfer__profile {
  min-width: 0;
  display: flex;
  align-items: center;
  gap: .48rem;
}

.activity-detail__organizer-profile > strong,
.activity-organizer-transfer__profile > strong {
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.activity-detail__organizer-profile .avatar,
.activity-detail__organizer-profile .profile-trigger,
.activity-organizer-transfer__profile .avatar,
.activity-organizer-transfer__profile .profile-trigger {
  flex: 0 0 auto;
}

.activity-detail__organizer-profile .avatar,
.activity-organizer-transfer__profile .avatar {
  width: 30px;
  height: 30px;
}

.activity-detail__organizer-fallback {
  width: 30px;
  height: 30px;
  display: grid;
  place-items: center;
  flex: 0 0 auto;
  border-radius: 50%;
  background: #edf5f7;
}

.activity-detail__organizer-change {
  flex: 0 0 auto;
  padding: .24rem .44rem;
  border: 1px solid #cfe0e5;
  border-radius: 8px;
  background: #fff;
  color: #5d7882;
  font: inherit;
  font-size: .7rem;
  font-weight: 800;
  cursor: pointer;
}

.activity-detail__organizer-change:hover {
  border-color: #b9d2da;
  background: #f2f8fa;
  color: #45636e;
}

.activity-detail__organizer-request {
  grid-column: 2;
  min-width: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: .65rem;
  padding: .62rem .7rem;
  border: 1px solid #d8e7eb;
  border-radius: 10px;
  background: #fff;
}

.activity-detail__organizer-request-copy {
  min-width: 0;
  display: grid;
  gap: .16rem;
  color: #5d747d;
  font-size: .76rem;
  line-height: 1.4;
}

.activity-detail__organizer-request-copy > strong {
  color: #45636e;
  font-size: .78rem;
}

.activity-detail__organizer-request-actions {
  display: flex;
  align-items: center;
  gap: .35rem;
  flex: 0 0 auto;
}

.activity-detail__organizer-request-actions .button {
  min-height: 32px;
  padding: .32rem .55rem;
  font-size: .72rem;
}

.activity-detail__participation-panel {
  width: min(100%, 270px);
  min-width: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: .58rem;
  margin-left: auto;
  padding: .72rem;
  border: 1px solid #cfe2e8;
  border-radius: 15px;
  background: linear-gradient(145deg, #f4fafc 0%, #edf6f9 100%);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, .8);
}

.activity-detail__participation-overview {
  grid-column: 1;
  grid-row: 1;
  min-width: 0;
  display: grid;
  gap: .32rem;
  padding: .78rem .82rem;
  border: 1px solid rgba(190, 216, 225, .86);
  border-radius: 11px;
  background: rgba(255, 255, 255, .8);
}

.activity-detail__overview-heading {
  min-width: 0;
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: .75rem;
}

.activity-detail__overview-label {
  color: #78929c;
  font-size: .72rem;
  font-weight: 850;
}

.activity-detail__overview-count {
  flex: 0 0 auto;
  color: #405f6b;
  font-size: 1.14rem;
  line-height: 1.15;
}

.activity-detail__overview-waitlist {
  color: #7b9199;
  font-size: .72rem;
  line-height: 1.3;
}

.activity-detail__my-status {
  width: fit-content;
  margin-top: .04rem;
  padding: .2rem .38rem;
  border-radius: 999px;
  background: #eef6f8;
  color: #56737d;
  font-size: .72rem;
  font-weight: 800;
  line-height: 1.35;
}

.activity-detail__overview-deadline {
  min-width: 0;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  align-items: center;
  gap: .55rem;
  margin-top: .24rem;
  padding-top: .48rem;
  border-top: 1px solid #e2ecef;
}

.activity-detail__overview-deadline-label {
  color: #8299a2;
  font-size: .68rem;
  font-weight: 800;
}

.activity-detail__overview-deadline-date {
  min-width: 0;
  justify-self: end;
  color: #5f7881;
  font-size: .72rem;
  font-weight: 750;
  line-height: 1.3;
  text-align: right;
  white-space: nowrap;
}

.activity-detail__participants-button {
  width: 100%;
  min-height: 34px;
  margin-top: .18rem;
  padding: .34rem .42rem;
  border-radius: 8px;
  font-size: .73rem;
}

.activity-detail__participation-action {
  grid-column: 1;
  grid-row: 2;
  width: 100%;
  min-width: 0;
}

.activity-detail__participation-button {
  width: 100%;
  min-height: 42px;
  border-radius: 10px;
  font-size: .86rem;
}

.activity-detail__participation-button--primary {
  color: #fff;
  border-color: var(--forest-900);
  background: var(--forest-900);
  box-shadow: 0 7px 16px rgba(72, 104, 117, .16);
}

.activity-detail__participation-button--primary:hover {
  color: #fff;
  border-color: #3d5e6a;
  background: #3d5e6a;
  box-shadow: 0 9px 19px rgba(72, 104, 117, .2);
}

.activity-detail__closed-message {
  padding: .62rem .68rem;
  border-radius: 10px;
  background: rgba(255, 255, 255, .72);
  color: #758b93;
  font-size: .78rem;
  font-weight: 750;
  text-align: center;
}

.activity-detail__utility-actions {
  gap: .48rem;
  padding-top: .12rem;
}

.activity-detail__utility-actions .button {
  min-height: 39px;
  padding: .48rem .72rem;
  border-radius: 11px;
  font-size: .82rem;
}

.activity-detail__body {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  align-items: stretch;
  gap: 1rem;
  margin-top: 1rem;
}

.activity-detail__content-card {
  min-width: 0;
  align-content: start;
  border-top: 8px solid var(--category-color, rgba(116, 157, 173, .2));
}

.activity-detail__content-card:first-child .section-title::before {
  content: "📝";
  margin-right: .42rem;
}

.activity-detail__body > .notice-box--warning {
  grid-column: 1;
  min-width: 0;
  display: grid;
  gap: 1rem;
  padding: 1rem;
  border: 1px solid #eadcaf;
  border-top: 8px solid var(--yellow-600);
  border-radius: var(--radius-md);
  background: var(--yellow-100);
  color: #654a08;
  box-shadow: var(--shadow-sm);
}

.activity-detail__body > .notice-box--warning > strong {
  color: #654a08;
  font-size: 0;
  line-height: 1.3;
}

.activity-detail__body > .notice-box--warning > strong::before {
  content: "⚠️ 참여자 주의사항";
  font-size: 1.25rem;
}

.activity-detail__management {
  grid-column: 1 / -1;
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 1rem;
  margin-top: .3rem;
  padding: .9rem .1rem .1rem;
  border-top: 1px solid #e3ecef;
}

.activity-participants-dialog {
  min-width: 0;
  gap: .9rem;
}

.activity-participants-dialog__summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: .7rem;
  padding-bottom: .7rem;
  border-bottom: 1px solid #e4edef;
}

.activity-participants-dialog__summary > strong {
  color: #45636e;
  font-size: .92rem;
}

.activity-participants-dialog__list {
  max-height: none;
  overflow: visible;
  padding-right: 0;
}

.activity-participants-dialog__list .participant-person {
  min-width: 0;
  padding: .72rem;
}

.activity-participants-dialog__list .profile-trigger__menu {
  top: calc(100% + 8px);
  bottom: auto;
}

.participant-person__avatar-wrap {
  position: relative;
  display: inline-flex;
  flex: 0 0 auto;
}

.participant-person__organizer-crown {
  position: absolute;
  top: -9px;
  right: -9px;
  z-index: 2;
  display: grid;
  place-items: center;
  width: 22px;
  height: 22px;
  font-size: .9rem;
  line-height: 1;
  filter: drop-shadow(0 1px 1px rgba(55, 69, 74, .18));
  pointer-events: none;
}

.activity-participants-dialog__empty,
.activity-organizer-transfer__empty {
  padding: 1.2rem .9rem;
  border: 1px dashed #d8e7eb;
  border-radius: 12px;
  background: #f8fbfc;
  color: #7a9199;
  font-size: .86rem;
  text-align: center;
}

.activity-organizer-transfer {
  min-width: 0;
  gap: .8rem;
}

.activity-organizer-transfer__message {
  margin: 0;
  color: #5d747d;
  font-size: .88rem;
}

.activity-organizer-transfer__list {
  display: grid;
  gap: .52rem;
}

.activity-organizer-transfer__person {
  min-width: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: .7rem;
  padding: .65rem .7rem;
  border: 1px solid #dde9ec;
  border-radius: 12px;
  background: #f9fcfd;
}

.activity-organizer-transfer__person .button {
  flex: 0 0 auto;
  min-height: 34px;
  padding: .34rem .55rem;
  font-size: .73rem;
}

.activity-organizer-transfer__hint {
  margin: 0;
  padding-top: .2rem;
  line-height: 1.5;
}

.activity-detail__management-copy {
  display: none;
}

.activity-detail__cancel-schedule {
  flex: 0 0 auto;
  min-height: 38px;
  padding: .46rem .72rem;
  border-color: #e3c8cb;
  border-radius: 11px;
  background: transparent;
  color: #9a666d;
  font-size: .8rem;
  box-shadow: none;
}

.activity-detail__cancel-schedule:hover {
  border-color: #d9b7bb;
  background: #fff5f6;
  color: #8f5961;
  box-shadow: none;
}

@media (min-width: 900px) {
  .activity-detail-hero {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr) 270px;
    column-gap: .52rem;
    justify-content: stretch;
    align-items: start;
  }

  .activity-detail__header {
    grid-column: 1 / -1;
  }

  .activity-detail__summary {
    width: 100%;
    max-width: none;
    grid-column: 1 / 3;
    grid-row: 2;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    grid-auto-rows: max-content;
    align-content: start;
    align-self: stretch;
    padding-bottom: 3.2rem;
  }

  .activity-detail__participation-panel {
    width: 100%;
    grid-column: 3;
    grid-row: 2;
    align-self: stretch;
    margin-left: 0;
  }

  .activity-detail__utility-actions {
    grid-column: 1 / 3;
    grid-row: 2;
    align-self: end;
    justify-self: start;
    z-index: 1;
  }
}

@media (max-width: 759px) {
  .activity-detail__body {
    grid-template-columns: minmax(0, 1fr);
  }

  .activity-detail__body > .notice-box--warning,
  .activity-detail__management {
    grid-column: 1;
  }
}

@media (max-width: 620px) {
  .activity-detail__meta-body {
    grid-template-columns: 46px minmax(0, 1fr);
    gap: .24rem;
  }

  .activity-detail__organizer-request {
    align-items: stretch;
    flex-direction: column;
  }

  .activity-detail__organizer-request-actions {
    width: 100%;
  }

  .activity-detail__organizer-request-actions .button {
    flex: 1 1 0;
  }

  .activity-detail__participation-panel {
    width: 100%;
    margin-left: 0;
    padding: .72rem;
  }

  .activity-detail__overview-deadline-date {
    white-space: normal;
  }

  .activity-detail__management {
    align-items: flex-start;
    flex-direction: column;
  }

  .activity-organizer-transfer__person {
    align-items: stretch;
    flex-direction: column;
  }

  .activity-organizer-transfer__person .button {
    width: 100%;
  }
}

@media (max-width: 430px) {
  .activity-detail__meta {
    min-height: 50px;
    padding: .46rem .6rem;
  }

  .activity-detail__meta-body {
    grid-template-columns: 44px minmax(0, 1fr);
  }

  .activity-detail__organizer-value {
    align-items: flex-start;
    flex-direction: column;
  }

  .activity-detail__organizer-actions {
    flex-wrap: wrap;
  }

  .activity-detail__overview-deadline {
    grid-template-columns: 1fr;
    gap: .12rem;
  }

  .activity-detail__overview-deadline-date {
    justify-self: start;
    text-align: left;
  }
}