/* V57: 免費・無需報名・直接到場 */
.walk-in-badge,
.walk-in-admin-badge {
  display: inline-flex;
  align-items: center;
  max-width: 100%;
  padding: .28rem .58rem;
  border: 1px solid rgba(55, 225, 224, .62);
  border-radius: 999px;
  background: linear-gradient(135deg, rgba(17, 192, 190, .2), rgba(26, 113, 189, .2));
  color: #68f7ee;
  font-size: .72rem;
  font-weight: 900;
  line-height: 1.2;
  letter-spacing: .02em;
  vertical-align: middle;
}

.walk-in-badge.compact {
  padding: .12rem .3rem;
  font-size: .58rem;
  white-space: nowrap;
}

.cal-agenda-type .walk-in-badge,
.event-card-badges .walk-in-badge,
.badge-row .walk-in-badge {
  margin-left: .35rem;
}

.cal-ev .walk-in-badge.compact {
  flex: 0 0 auto;
  margin-left: .2rem;
}

.cal-space.walk-in-space {
  border-color: rgba(55, 225, 224, .5);
  background: rgba(17, 192, 190, .12);
  color: #65ede7;
}

.walk-in-panel {
  display: grid;
  grid-template-columns: 2.6rem minmax(0, 1fr);
  gap: .9rem;
  align-items: start;
  padding: 1rem;
  border: 1px solid rgba(55, 225, 224, .5);
  border-radius: 16px;
  background:
    radial-gradient(circle at 0 0, rgba(55, 225, 224, .18), transparent 46%),
    rgba(11, 25, 44, .86);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, .03);
}

.walk-in-panel-icon {
  display: grid;
  place-items: center;
  width: 2.6rem;
  aspect-ratio: 1;
  border-radius: 50%;
  background: linear-gradient(135deg, #2ee7d2, #3193e9);
  color: #061624;
  font-size: 1.35rem;
  font-weight: 900;
}

.walk-in-panel strong {
  color: #81fff5;
  font-size: 1.05rem;
}

.walk-in-panel p {
  margin: .35rem 0 0;
  color: rgba(255, 255, 255, .82);
  line-height: 1.65;
}

.participation-mode-field {
  min-width: 0;
  margin: 0;
  padding: .85rem;
  border: 1px solid rgba(255, 255, 255, .13);
  border-radius: 14px;
}

.participation-mode-field legend {
  padding: 0 .35rem;
  color: rgba(255, 255, 255, .86);
  font-weight: 800;
}

.participation-mode-field .competition-mode-options {
  margin-top: .2rem;
}

.participation-mode-field .check-row > input[type="radio"] {
  flex: 0 0 1.2rem;
  width: 1.2rem;
  height: 1.2rem;
  min-height: 0;
  margin: .15rem 0 0;
  padding: 0;
  accent-color: #3de2dc;
}

.participation-mode-field .check-row > span {
  min-width: 0;
  overflow-wrap: anywhere;
}

.participation-mode-field .check-row:has(input:checked) {
  border-color: rgba(55, 225, 224, .6);
  background: rgba(28, 177, 188, .1);
  box-shadow: inset 0 0 0 1px rgba(55, 225, 224, .12);
}

.walk-in-admin-note {
  margin: .75rem 0 0;
  padding: .7rem .8rem;
  border-left: 3px solid #3de2dc;
  border-radius: 8px;
  background: rgba(35, 183, 191, .1);
  color: rgba(255, 255, 255, .8);
  font-size: .82rem;
  line-height: 1.55;
}

.walk-in-admin-badge {
  margin-left: .45rem;
  font-size: .66rem;
}

.tag.tag-cyan {
  border-color: rgba(55, 225, 224, .6);
  background: rgba(24, 177, 185, .16);
  color: #71f8ef;
}

@media (max-width: 720px) {
  .walk-in-badge:not(.compact) {
    white-space: normal;
    text-align: center;
  }

  .walk-in-panel {
    grid-template-columns: 2.2rem minmax(0, 1fr);
    gap: .7rem;
    padding: .85rem;
  }

  .walk-in-panel-icon {
    width: 2.2rem;
  }

  .participation-mode-field {
    padding: .7rem;
  }

  .participation-mode-field .competition-mode-options {
    grid-template-columns: minmax(0, 1fr);
  }

  .walk-in-admin-badge {
    display: flex;
    width: fit-content;
    margin: .35rem 0 0;
  }
}