.platform-auth-page {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  overflow-x: hidden;
}

.platform-auth-page > .container {
  width: 100%;
  flex: 1 1 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  position: relative;
}

/* 바탕 물방울 효과 */
.floating-elements {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 0;
}

.floating-element {
  position: absolute;
  width: 20px;
  height: 20px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 50%;
  animation: float-element 8s infinite linear;
}

.floating-element:nth-child(1) {
  top: 10%;
  left: 10%;
  animation-delay: 0s;
}

.floating-element:nth-child(2) {
  top: 20%;
  right: 15%;
  animation-delay: 2s;
}

.floating-element:nth-child(3) {
  bottom: 30%;
  left: 20%;
  animation-delay: 4s;
}

.floating-element:nth-child(4) {
  bottom: 20%;
  right: 10%;
  animation-delay: 6s;
}

@keyframes float-element {
  0% {
    transform: translateY(0) rotate(0deg);
    opacity: 0;
  }
  10% {
    opacity: 1;
  }
  90% {
    opacity: 1;
  }
  100% {
    transform: translateY(-100vh) rotate(360deg);
    opacity: 0;
  }
}

/* 둥근 모서리 카드 */
.platform-sign-in {
  width: min(460px, 100%);
  margin: 6vh auto;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(20px);
  border-radius: 30px;
  padding: 26px 32px 34px;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.12);
  text-align: center;
  position: relative;
  z-index: 1;
}

.platform-sign-in__header {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  margin-bottom: 6px;
}

.platform-sign-in__logo {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  object-fit: contain;
  box-shadow: 0 0 10px rgba(102, 126, 234, 0.5);
}

.platform-sign-in__header h1 {
  margin: 0;
  font-size: 2rem;
  font-weight: 300;
  color: #333;
}

.platform-sign-in__topbar {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 8px;
  margin-bottom: 6px;
}

.platform-sign-in__pwa {
  width: 42px;
  height: 42px;
  min-width: 42px;
  border: none;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.95);
  box-shadow: 0 3px 10px rgba(0, 0, 0, 0.15);
  cursor: pointer;
  font-size: 1.2rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  justify-self: start;
}

.platform-sign-in__pwa:hover {
  transform: scale(1.08);
  background: #fff;
}

.platform-pwa-dialog {
  width: min(390px, calc(100vw - 28px));
  padding: 0;
  border: 1px solid #d8deea;
  border-radius: 18px;
  color: #172033;
  background: #fff;
  box-shadow: 0 24px 70px rgba(15, 23, 42, 0.28);
}

.platform-pwa-dialog::backdrop {
  background: rgba(15, 23, 42, 0.52);
  backdrop-filter: blur(2px);
}

.platform-pwa-dialog__header,
.platform-pwa-dialog__actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 14px 16px;
}

.platform-pwa-dialog__header {
  border-bottom: 1px solid #e7eaf0;
}

.platform-pwa-dialog__header h2 {
  margin: 0;
  font-size: 1.05rem;
}

.platform-pwa-dialog__header button {
  width: 32px;
  height: 32px;
  padding: 0;
  border: 0;
  border-radius: 50%;
  background: #eef2f8;
  color: #475569;
  font-size: 1.3rem;
}

.platform-pwa-dialog [data-pwa-dialog-body] {
  padding: 15px 17px 5px;
  text-align: left;
}

.platform-pwa-dialog [data-pwa-install-description] {
  margin: 0;
  line-height: 1.55;
}

.platform-pwa-ios-guide {
  margin: 12px 0 2px;
  padding-left: 23px;
  line-height: 1.7;
}

.platform-pwa-dialog__actions {
  justify-content: flex-end;
}

.platform-sign-in__lang {
  position: relative;
  justify-self: end;
}

.platform-sign-in__lang-btn {
  width: 42px;
  height: 42px;
  min-width: 42px;
  border: none;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.95);
  box-shadow: 0 3px 10px rgba(0, 0, 0, 0.15);
  cursor: pointer;
  font-weight: bold;
  font-size: 0.85rem;
  color: #333;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.platform-sign-in__lang-btn:hover {
  transform: scale(1.08);
  background: #fff;
}

.platform-sign-in__lang-dropdown {
  position: absolute;
  top: 50px;
  right: 0;
  display: none;
  min-width: 120px;
  background: rgba(255, 255, 255, 0.97);
  border-radius: 12px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
  border: 1px solid rgba(255, 255, 255, 0.3);
  overflow: hidden;
  z-index: 10;
  text-align: left;
}

.platform-sign-in__lang-dropdown.show {
  display: block;
}

.platform-sign-in__lang-dropdown form {
  margin: 0;
}

.platform-sign-in__lang-option {
  display: block;
  width: 100%;
  padding: 10px 16px;
  border: none;
  background: transparent;
  text-align: left;
  font: inherit;
  font-size: 0.9rem;
  color: #333;
  cursor: pointer;
  border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

.platform-sign-in__lang-option:last-child {
  border-bottom: none;
}

.platform-sign-in__lang-option:hover {
  background: rgba(102, 126, 234, 0.1);
  color: #667eea;
}

.platform-sign-in__lang-option.selected {
  background: rgba(102, 126, 234, 0.15);
  color: #667eea;
  font-weight: bold;
}

/* 분홍 그라데이션 시계 */
.platform-sign-in__panel {
  width: min(340px, 100%);
  margin: 0 auto;
  text-align: start;
}

.platform-sign-in__clock {
  width: 100%;
  margin: 0 0 22px;
  box-sizing: border-box;
  background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
  border-radius: 20px;
  padding: 22px 24px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
  position: relative;
  overflow: hidden;
  text-align: center;
}

.platform-sign-in__clock-time {
  display: block;
  font-size: 2.4rem;
  font-weight: 300;
  color: #fff;
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
  line-height: 1.1;
}

.platform-sign-in__clock-date {
  display: block;
  margin-top: 6px;
  font-size: 1rem;
  font-weight: 300;
  color: rgba(255, 255, 255, 0.9);
}

.signin-owner-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 16px;
}

.signin-owner-form {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.signin-owner-form label {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 0.9rem;
}
.platform-sign-in__form {
  display: grid;
  gap: 0.9rem;
  width: 100%;
  box-sizing: border-box;
}

.platform-sign-in__panel .platform-sign-in__form {
  width: calc(100% - 2.75rem);
  max-width: 100%;
  margin-inline: auto;
}

.platform-sign-in__form label {
  display: flex;
  flex-direction: row;
  align-items: center;
  gap: 8px;
  width: 100%;
  box-sizing: border-box;
}

.platform-sign-in__form label span {
  flex: 0 0 auto;
  min-width: 3.5rem;
}

.platform-sign-in__panel .platform-sign-in__form label {
  display: block;
}

.platform-sign-in__panel .platform-sign-in__form label input,
.platform-sign-in__panel .platform-sign-in__form input[type="text"],
.platform-sign-in__panel .platform-sign-in__form input[type="password"] {
  display: block;
  width: 100%;
  flex: none;
  min-width: 0;
  min-height: 42px;
  padding: 10px 16px;
  font-size: 0.95rem;
  border: 1px solid #ccd3e0;
  border-radius: 12px;
  background: #fff;
}

.platform-sign-in__panel .platform-sign-in__form input::placeholder {
  color: #9aa3b2;
  opacity: 1;
}

.platform-sign-in--change-password {
  width: min(500px, 100%);
}

.platform-sign-in--change-password .hint {
  text-align: left;
  font-size: 0.9rem;
  line-height: 1.5;
  margin: 0.4rem 0 1.2rem;
  color: #4b5563;
  word-break: keep-all;
}

.platform-sign-in__form--fields-aligned {
  grid-template-columns: max-content minmax(0, 1fr);
  column-gap: 12px;
  row-gap: 1.05rem;
  text-align: start;
  align-items: center;
}

.platform-sign-in__form--fields-aligned label {
  display: grid;
  grid-template-columns: subgrid;
  grid-column: 1 / -1;
  align-items: center;
}

.platform-sign-in__form--fields-aligned label span {
  min-width: 0;
  white-space: nowrap;
  font-size: 0.98rem;
  font-weight: 600;
  color: #334155;
}

.platform-sign-in__form--fields-aligned input[type="password"],
.platform-sign-in__form--fields-aligned input[type="text"] {
  display: block;
  width: 100%;
  box-sizing: border-box;
  min-height: 46px;
  padding: 10px 14px;
  font-size: 1rem;
  border: 1px solid #ccd3e0;
  border-radius: 12px;
  background: #fff;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.platform-sign-in__form--fields-aligned input[type="password"]:focus,
.platform-sign-in__form--fields-aligned input[type="text"]:focus {
  border-color: #667eea;
  box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.15);
  outline: none;
}

.platform-sign-in__form--fields-aligned > button,
.platform-sign-in__form--fields-aligned > .platform-sign-in__actions {
  grid-column: 1 / -1;
}

.platform-sign-in__form--fields-aligned > button.btn-primary {
  min-height: 46px;
  font-size: 1rem;
  font-weight: 600;
  border-radius: 12px;
  margin-top: 0.4rem;
}

@supports not (grid-template-columns: subgrid) {
  .platform-sign-in__form--fields-aligned {
    grid-template-columns: minmax(0, 1fr);
  }
  .platform-sign-in__form--fields-aligned label {
    display: flex;
    grid-column: auto;
  }
  .platform-sign-in__form--fields-aligned label span {
    flex: 0 0 10.5rem;
    min-width: 10.5rem;
  }
}

.platform-sign-in__actions {
  display: flex;
  gap: 8px;
  margin-top: 0.3rem;
}

.platform-sign-in__actions .btn-primary,
.platform-sign-in__actions .btn {
  flex: 1 1 auto;
  min-height: 42px;
  border-radius: 12px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.platform-sign-in__usage {
  display: inline-block;
  margin: 10px 0 14px;
  padding: 6px 16px;
  border: 1px solid rgba(102, 126, 234, 0.3);
  border-radius: 999px;
  background: rgba(102, 126, 234, 0.08);
  color: #5b5f6b;
  text-align: center;
  font-size: 0.88rem;
  line-height: 1.45;
}

.platform-sign-in__usage > span {
  display: block;
}

.platform-sign-in .save-status--error {
  margin-top: 0.8rem;
  padding: 9px 12px;
  border: 1px solid #e0afb3;
  border-radius: 6px;
  background: #fff1f1;
  color: #9b2832;
  text-align: center;
}

/* 공개 로그인 모바일 전용. 가입·암호 변경과 데스크톱 카드 규격은 유지한다. */
@media (max-width: 560px) {
  .platform-sign-in-page {
    min-height: 100dvh;
  }

  .platform-sign-in-page > .container {
    min-height: 0;
    padding: 8px 12px;
    gap: 0;
  }

  .platform-sign-in-page .platform-sign-in {
    width: min(100%, 390px);
    margin: 0 auto;
    padding: 12px 18px 14px;
    border-radius: 20px;
  }

  .platform-sign-in-page .platform-sign-in__topbar {
    gap: 6px;
    margin-bottom: 2px;
  }

  .platform-sign-in-page .platform-sign-in__pwa,
  .platform-sign-in-page .platform-sign-in__lang-btn {
    width: 36px;
    height: 36px;
    min-width: 36px;
  }

  .platform-sign-in-page .platform-sign-in__lang-dropdown {
    top: 42px;
  }

  .platform-sign-in-page .platform-sign-in__header {
    gap: 8px;
    margin-bottom: 0;
  }

  .platform-sign-in-page .platform-sign-in__logo {
    width: 36px;
    height: 36px;
    border-radius: 9px;
  }

  .platform-sign-in-page .platform-sign-in__header h1 {
    font-size: 1.35rem;
    font-weight: 400;
  }

  .platform-sign-in-page .platform-sign-in__usage {
    margin: 5px 0 7px;
    padding: 4px 12px;
    font-size: 0.78rem;
  }

  .platform-sign-in-page .platform-sign-in__clock {
    margin-bottom: 10px;
    padding: 11px 16px;
    border-radius: 15px;
  }

  .platform-sign-in-page .platform-sign-in__clock-time {
    font-size: 1.75rem;
  }

  .platform-sign-in-page .platform-sign-in__clock-date {
    margin-top: 2px;
    font-size: 0.82rem;
  }

  .platform-sign-in-page .platform-sign-in__form {
    gap: 8px;
  }

  .platform-sign-in-page .platform-sign-in__panel .platform-sign-in__form {
    width: calc(100% - 1.25rem);
  }

  .platform-sign-in-page .platform-sign-in__panel .platform-sign-in__form label input,
  .platform-sign-in-page .platform-sign-in__panel .platform-sign-in__form input[type="text"],
  .platform-sign-in-page .platform-sign-in__panel .platform-sign-in__form input[type="password"] {
    min-height: 38px;
    padding: 8px 12px;
    border-radius: 10px;
  }

  .platform-sign-in-page .platform-sign-in__actions {
    margin-top: 0;
  }

  .platform-sign-in-page .platform-sign-in__actions .btn-primary,
  .platform-sign-in-page .platform-sign-in__actions .btn {
    min-height: 38px;
    border-radius: 10px;
  }

  .platform-sign-in-page .platform-shell-footer {
    min-height: 30px;
    padding: 4px 10px;
    flex-direction: row;
    align-items: center;
  }
}

.registration-management__header,
.registration-card__header,
.registration-card__actions,
.registration-card__decision {
  align-items: center;
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  justify-content: space-between;
}

.registration-list {
  display: grid;
  gap: 1rem;
  margin-top: 1rem;
}

.registration-card {
  background: #fff;
  border: 1px solid #d0d5dd;
  border-radius: 0.75rem;
  padding: 1rem;
}

.registration-card h2 { margin: 0 0 0.25rem; }

.registration-status {
  border-radius: 999px;
  font-weight: 700;
  padding: 0.3rem 0.65rem;
}

.registration-status--pending { background: #fffaeb; color: #93370d; }
.registration-status--approved { background: #ecfdf3; color: #027a48; }
.registration-status--rejected { background: #fef3f2; color: #b42318; }

.registration-card__details {
  display: grid;
  gap: 0.55rem;
  grid-template-columns: repeat(auto-fit, minmax(13rem, 1fr));
  margin: 1rem 0;
}

.registration-card__details div {
  background: #f8fafc;
  border-radius: 0.4rem;
  padding: 0.6rem;
}

.registration-card__details dt { color: #667085; font-size: 0.82rem; }
.registration-card__details dd { margin: 0.25rem 0 0; overflow-wrap: anywhere; }
.registration-card__reason { grid-column: 1 / -1; }

.registration-card__decision {
  border-top: 1px solid #eaecf0;
  margin-top: 1rem;
  padding-top: 1rem;
}

.registration-card__reject {
  align-items: end;
  display: flex;
  flex: 1;
  gap: 0.5rem;
  justify-content: flex-end;
}

.registration-card__reject label { flex: 1; max-width: 32rem; }

.registration-table-wrap { margin-top: 1rem; overflow-x: auto; }
.registration-table { min-width: 960px; width: 100%; }
.registration-table td { vertical-align: top; }
.registration-reason { display: block; margin-top: 0.4rem; max-width: 18rem; }
.registration-row-actions { display: flex; flex-wrap: wrap; gap: 0.4rem; }
.registration-row-actions form { margin: 0; }
.registration-row-reject { display: flex; gap: 0.35rem; }
.registration-row-reject input { min-width: 12rem; }