.auth-area {
  display: flex; align-items: center; justify-content: flex-end; gap: 8px;
  font-size: 13px; margin-top: 8px; min-height: 28px;
}
.user-chip {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 4px 10px; border: 1px solid var(--rule);
  background: var(--cell); border-radius: 999px;
}
#change-name {
  padding: 5px 12px; border: 1px solid var(--rule); border-radius: 4px;
  background: var(--cell); cursor: pointer; font: inherit;
}
#change-name:hover { background: var(--bg); }

/* Attendance bar (footer inside .cell) */
.attendance-bar {
  display: flex; align-items: center; gap: 12px;
  padding: 10px 14px; margin-top: 12px;
  border-top: 1px dashed var(--rule);
  font-size: 12px;
}
.attendees {
  list-style: none; display: flex; flex-wrap: wrap; gap: 4px;
  margin-left: auto; max-width: 70%;
}
.attendees li {
  padding: 2px 8px; background: var(--cell);
  border: 1px solid var(--rule); border-radius: 999px;
  font-size: 11px;
}
.attendees li.is-me { background: var(--sponsor); }

/* Attend button — 3-state: default / hover / submitting */
.attend-btn {
  position: relative;
  padding: 5px 12px;
  border: 1px solid var(--rule);
  background: transparent;
  border-radius: 999px;
  color: var(--ink);
  font: inherit; font-size: 12px;
  cursor: pointer;
  transition: background 0.15s ease, color 0.15s ease, border-color 0.15s ease;
  white-space: nowrap;
  min-width: 76px;
}
.attend-btn .hover-label,
.attend-btn .submit-label { display: none; }
.attend-btn:hover:not(:disabled):not(.is-submitting) {
  background: var(--navy); color: white; border-color: var(--navy);
}
.attend-btn:hover:not(:disabled):not(.is-submitting) .default-label { display: none; }
.attend-btn:hover:not(:disabled):not(.is-submitting) .hover-label { display: inline; }
.attend-btn:disabled {
  cursor: not-allowed; opacity: 0.45;
}

/* Attending state — sponsor 노랑, hover 시 빨간 "참석 취소" */
.attend-btn.is-attending {
  background: var(--sponsor); border-color: var(--sponsor);
  color: var(--ink); font-weight: 500;
}
.attend-btn.is-attending:hover:not(:disabled):not(.is-submitting) {
  background: #C0392B; border-color: #C0392B; color: white;
}

/* Submitting state — 스피너 + "저장 중..." */
.attend-btn.is-submitting { pointer-events: none; opacity: 0.7; }
.attend-btn.is-submitting .default-label,
.attend-btn.is-submitting .hover-label { display: none; }
.attend-btn.is-submitting .submit-label {
  display: inline-flex; align-items: center; gap: 6px;
}
.attend-btn.is-submitting .submit-label::before {
  content: '';
  display: inline-block;
  width: 10px; height: 10px;
  border: 2px solid currentColor; border-top-color: transparent;
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* Loading banner (top fixed) */
.loading-banner {
  position: fixed; top: 0; left: 50%;
  transform: translateX(-50%);
  background: var(--navy); color: white;
  padding: 8px 18px;
  border-radius: 0 0 10px 10px;
  font-size: 13px;
  z-index: 1000;
  box-shadow: 0 4px 14px rgba(0,0,0,0.25);
  display: inline-flex; align-items: center; gap: 8px;
}
.loading-banner[hidden] { display: none; }
.loading-banner::before {
  content: '';
  display: inline-block;
  width: 12px; height: 12px;
  border: 2px solid rgba(255,255,255,0.35);
  border-top-color: white;
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}
.loading-banner.is-error {
  background: #C0392B;
}
.loading-banner.is-error::before { display: none; }

/* Name prompt modal */
.name-modal {
  position: fixed; inset: 0; z-index: 9999;
  background: rgba(15, 20, 30, 0.5);
  display: flex; align-items: center; justify-content: center;
  padding: 16px;
}
.name-modal[hidden] { display: none; }
.name-modal-card {
  background: var(--cell); border: 1px solid var(--rule); border-radius: 8px;
  padding: 24px; max-width: 360px; width: 100%;
  box-shadow: 0 12px 32px rgba(0,0,0,0.25);
}
.name-modal-card h3 {
  margin: 0 0 8px 0; font-size: 16px; color: var(--ink);
}
.name-modal-card p {
  margin: 0 0 14px 0; font-size: 13px; color: var(--muted); line-height: 1.5;
}
.name-modal-card input {
  width: 100%; padding: 8px 12px; font: inherit;
  border: 1px solid var(--rule); border-radius: 4px; background: var(--cell);
  box-sizing: border-box;
}
.name-modal-card input:focus {
  outline: 2px solid var(--aws-orange); outline-offset: -1px;
}
.name-modal-error {
  margin: 8px 0 0 0; padding: 8px 10px;
  background: #FDEBEC; border-left: 3px solid #C0392B;
  color: #8B1F1F; font-size: 12px; line-height: 1.4;
  border-radius: 3px;
}
.name-modal-error[hidden] { display: none; }
.name-modal-actions {
  display: flex; gap: 8px; justify-content: flex-end; margin-top: 16px;
}
.name-modal-actions button {
  padding: 7px 14px; border-radius: 4px; cursor: pointer; font: inherit;
  border: 1px solid var(--rule);
}
.name-modal-cancel { background: var(--cell); }
.name-modal-cancel:hover { background: var(--bg); }
.name-modal-submit {
  background: var(--navy); color: white; border-color: var(--navy);
}
.name-modal-submit:hover { background: var(--navy-2); }