:root {
  --bg: #f6f9fc;
  --surface: #ffffff;
  --line: #e5edf7;
  --text: #16233f;
  --muted: #6f7b90;
  --primary: #5d87ff;
  --primary-dark: #3f6df6;
  --ok: #15803d;
  --warn: #b45309;
  --danger: #b91c1c;
  --radius: 8px;
  --shadow: 0 14px 35px rgba(21, 35, 64, 0.06);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  color: var(--text);
  background: var(--bg);
  font-family: Arial, "Microsoft JhengHei", sans-serif;
  line-height: 1.5;
}

a {
  color: inherit;
}

.app-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 72px;
  padding: 0 32px;
  background: rgba(255, 255, 255, 0.94);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(12px);
}

.app-title {
  margin: 0;
  font-size: 24px;
  font-weight: 800;
  letter-spacing: 0;
}

.admin-link {
  color: var(--primary);
  font-weight: 700;
  text-decoration: none;
}

.admin-link:hover {
  color: var(--primary-dark);
}

.header-links {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.header-logout-button {
  width: auto;
  min-height: 0;
  padding: 0;
  color: var(--primary);
  background: transparent;
  border: 0;
  font: inherit;
  font-weight: 700;
}

.header-logout-button:hover {
  color: var(--primary-dark);
  background: transparent;
  text-decoration: underline;
}

.admin-page {
  --bg: #263348;
  --surface: #2d3b52;
  --line: #3c4d68;
  --text: #f6f8fc;
  --muted: #9fb0cb;
  --primary: #5d87ff;
  --primary-dark: #4874f5;
  --ok: #49d17d;
  --warn: #f4b44f;
  --danger: #ff6b6b;
  --shadow: 0 18px 42px rgba(10, 18, 32, 0.22);
}

.admin-page .admin-header {
  background: rgba(38, 51, 72, 0.96);
  border-bottom-color: #35455e;
}

.admin-header-links {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
  color: #c8d5eb;
  font-size: 14px;
  font-weight: 800;
}

.admin-header-links a {
  color: inherit;
  text-decoration: none;
}

.admin-header-links a:hover {
  color: #fff;
}

.admin-header-links a + a::before {
  content: "|";
  margin-right: 10px;
  color: #61708b;
}

.admin-page input,
.admin-page textarea,
.admin-page select {
  max-width: 100%;
  color: #f6f8fc;
  background: #223047;
  border-color: #40536f;
}

.admin-page input:focus,
.admin-page textarea:focus,
.admin-page select:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(93, 135, 255, 0.2);
}

.admin-page input::placeholder,
.admin-page textarea::placeholder {
  color: #73839d;
}

.admin-page .card,
.admin-page .panel-card,
.admin-page .form-section,
.admin-page .course-row,
.admin-page .course-table {
  background: var(--surface);
  border-color: var(--line);
}

.admin-page .card.compact {
  background: #25344b;
}

.admin-page .choice {
  background: #25344b;
  border-color: #40536f;
}

.admin-page #courseForm {
  display: grid;
  gap: 18px;
}

.admin-page #courseForm label {
  gap: 8px;
}

.admin-page th {
  color: #dbe6f8;
  background: #223047;
}

.admin-page td {
  border-color: var(--line);
}

.admin-page button.secondary,
.admin-page .button.secondary {
  color: #e8eefb;
  background: #26364f;
  border-color: #465b78;
}

.admin-page button.secondary:hover,
.admin-page .button.secondary:hover {
  background: #30425e;
}

.admin-page .button.secondary.outlined-secondary,
.admin-page button.secondary.outlined-secondary {
  color: #8bd7ff;
  background: rgba(105, 200, 255, 0.1);
  border-color: #8bd7ff;
  box-shadow: none;
}

.admin-page .button.secondary.outlined-secondary:hover,
.admin-page button.secondary.outlined-secondary:hover {
  color: #ffffff;
  background: #57b7f3;
  border-color: #57b7f3;
}

.admin-page .tabs {
  background: #223047;
  border-color: var(--line);
}

.admin-page .tab-button {
  color: #aebdd5;
}

.admin-page .tab-button:hover {
  color: #fff;
  background: #2d3d58;
}

.admin-page .tab-button.active {
  color: #fff;
  background: var(--primary);
  box-shadow: 0 12px 24px rgba(93, 135, 255, 0.25);
}

.admin-shell > .tab-panel.active {
  display: grid;
  gap: 18px;
}

.admin-toolbar {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 14px;
  align-items: end;
}

.admin-list-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.admin-filter-form {
  display: grid;
  grid-template-columns: repeat(2, minmax(160px, 1fr)) auto;
  gap: 12px;
  align-items: end;
}

.admin-date-row {
  display: block;
}

.admin-date-label {
  font-weight: 800;
  color: var(--text);
}

.admin-date-range-form {
  display: grid;
  grid-template-columns: max-content 180px;
  align-items: end;
  gap: 12px;
  margin: 0;
}

.admin-filter-field,
.admin-status-filter {
  display: grid;
  gap: 8px;
  color: var(--text);
  font-size: 14px;
  font-weight: 800;
}

.admin-date-range {
  display: inline-flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  width: fit-content;
  min-height: 44px;
  padding: 0 14px;
  background: #223047;
  border: 1px solid #40536f;
  border-radius: 8px;
}

.admin-date-field {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-width: 0;
  padding: 0;
  color: #ffffff;
  background: transparent;
  border: 0;
}

.admin-date-field:hover {
  background: transparent;
}

.admin-date-field input {
  width: 136px;
  min-width: 0;
  padding: 0;
  color: #ffffff;
  background: transparent;
  border: 0;
  box-shadow: none;
  pointer-events: none;
}

.admin-date-field input:focus {
  box-shadow: none;
}

.admin-date-field input::-webkit-calendar-picker-indicator {
  opacity: 0;
}

.admin-date-field-icon,
.admin-date-separator {
  color: #ffffff;
  font-weight: 700;
}

.admin-date-field-icon {
  font-size: 14px;
  line-height: 1;
}

.admin-date-separator {
  color: var(--muted);
  font-weight: 700;
}

.admin-status-filter select {
  appearance: none;
  -webkit-appearance: none;
  width: 100%;
  min-height: 44px;
  padding-right: 42px;
  color: #ffffff;
  background: #223047;
  background-image: url("data:image/svg+xml,%3Csvg width='14' height='14' viewBox='0 0 24 24' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M6 9l6 6 6-6' stroke='%23dbe8ff' stroke-width='2.4' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  background-size: 14px 14px;
  border-color: #40536f;
}

.admin-course-card {
  container-type: inline-size;
  padding: 18px;
  width: 100%;
  max-width: 100%;
  overflow: hidden;
  box-sizing: border-box;
}

.admin-course-card-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
}

.admin-course-main {
  display: grid;
  gap: 6px;
  min-width: 0;
}

.admin-course-title-line {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
}

.admin-course-title-line h3 {
  margin: 0;
}

.admin-copy-course-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  min-width: 30px;
  height: 30px;
  color: #8bd7ff;
  background: rgba(105, 200, 255, 0.1);
  border: 1px solid #8bd7ff;
  border-radius: 8px;
  text-decoration: none;
}

.admin-copy-course-link:hover {
  color: #ffffff;
  background: #57b7f3;
}

.admin-copy-course-link svg {
  width: 16px;
  height: 16px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.admin-course-status-tag {
  display: inline-flex;
  align-items: center;
  width: fit-content;
  min-height: 24px;
  padding: 2px 9px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 800;
  white-space: nowrap;
}

.admin-course-status-tag.status-full {
  color: #ffcf8a;
  background: rgba(244, 180, 79, 0.16);
}

.admin-course-status-tag.status-closed {
  color: #ff9c9c;
  background: rgba(255, 107, 107, 0.16);
}

.admin-course-capacity {
  margin: 0;
  color: var(--muted);
  font-size: 15px;
  font-weight: 700;
}

.admin-course-meta-list {
  display: grid;
  gap: 3px;
  color: var(--muted);
  font-size: 15px;
  font-weight: 700;
}

.admin-course-meta-list p {
  margin: 0;
}

.admin-course-actions {
  display: flex;
  flex: 0 0 auto;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 10px;
  margin-top: 0;
}

.admin-course-actions > * {
  width: auto;
}

.admin-course-card.is-compact .course-card,
.admin-course-card.is-compact .admin-course-card-row,
.admin-course-card.is-compact .admin-course-main {
  width: 100%;
}

.admin-course-card.is-compact .admin-course-card-row {
  display: grid !important;
  grid-template-columns: minmax(0, 1fr);
  gap: 10px;
  justify-items: stretch;
}

.admin-course-card.is-compact .admin-course-actions.actions {
  display: grid !important;
  flex: none !important;
  grid-template-columns: minmax(0, 1fr);
  width: 100% !important;
  min-width: 100%;
  justify-content: stretch;
  justify-items: stretch;
  justify-self: stretch;
  place-self: stretch;
  margin-top: 0;
}

.admin-course-card.is-compact .admin-course-actions.actions > *,
.admin-course-card.is-compact .admin-course-actions.actions .button {
  width: 100% !important;
  min-width: 100%;
  max-width: none;
}

.admin-page .list,
.admin-page .course-card {
  min-width: 0;
}

.course-date-editor {
  display: grid;
  gap: 12px;
  width: 100%;
  justify-self: stretch;
}

.course-date-picker-label {
  display: grid;
  gap: 8px;
}

.course-date-picker-row {
  display: grid;
  grid-template-columns: minmax(180px, 240px) auto;
  gap: 10px;
  align-items: center;
}

.course-date-picker-row .small-button {
  min-height: 42px;
}

.course-date-native-input {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}

.course-date-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  min-height: 0;
}

.course-date-tags.is-empty {
  display: none;
}

.course-date-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  width: fit-content;
  max-width: 100%;
  min-height: 28px;
  padding: 3px 8px 3px 10px;
  color: #7fb6ff;
  background: rgba(64, 96, 168, 0.5);
  border-radius: 999px;
  font-size: 13px;
  font-weight: 800;
  line-height: 1.2;
}

.course-date-remove {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 18px;
  min-width: 18px;
  height: 18px;
  min-height: 18px;
  padding: 0;
  color: #dbe8ff;
  background: rgba(255, 255, 255, 0.08);
  border: 0;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 900;
  line-height: 1;
}

.course-date-remove:hover {
  background: rgba(255, 255, 255, 0.18);
}

.admin-page #courseForm .course-date-action-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  width: fit-content;
  max-width: 100%;
  align-items: stretch;
  justify-self: start;
}

.admin-page #courseForm .course-date-action-row .small-button {
  width: auto;
  min-height: 42px;
}

.admin-page #courseForm .course-date-action-row button.small-button,
.admin-page #courseForm .course-date-action-row .button.small-button {
  width: auto;
  min-width: 0;
  max-width: none;
  display: flex;
}

.course-date-hidden-textarea {
  position: absolute;
  width: 1px;
  height: 1px;
  min-height: 1px;
  opacity: 0;
  pointer-events: none;
}

.quick-date-dialog {
  width: min(520px, calc(100% - 24px));
}

.quick-date-form {
  display: grid;
  gap: 18px;
}

.quick-date-form > label {
  display: grid;
  gap: 8px;
}

.quick-date-month-row {
  display: grid;
  grid-template-columns: minmax(104px, 1fr) auto minmax(120px, 1fr) auto;
  gap: 10px;
  align-items: center;
}

.quick-date-month-row input,
.quick-date-month-row select {
  min-height: 42px;
}

.quick-date-weekdays {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  padding: 0;
  border: 0;
}

.quick-date-weekdays legend {
  margin-bottom: 10px;
  color: var(--text);
  font-size: 14px;
  font-weight: 800;
}

.quick-date-weekdays label {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  gap: 8px;
  min-height: 42px;
  padding: 10px 12px;
  background: rgba(20, 36, 60, 0.36);
  border: 1px solid var(--line);
  border-radius: 8px;
  font-weight: 800;
}

.quick-date-weekdays input {
  width: 18px;
  min-width: 18px;
  height: 18px;
  min-height: 18px;
  margin: 0;
  accent-color: var(--primary);
}

.registration-card {
  padding: 18px;
}

.registration-status-tabs {
  margin-bottom: 18px;
}

.registration-summary {
  margin-top: 12px;
}

.registration-summary .fee-total {
  color: #e9674f;
}

.registration-grid {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 16px;
  align-items: start;
}

.registration-grid-merged {
  grid-template-columns: repeat(5, minmax(0, 1fr));
}

.registration-field {
  min-width: 0;
}

.registration-label {
  margin-bottom: 6px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
}

.admin-page .payment-pill-paid {
  display: inline-flex;
  width: fit-content;
  max-width: 100%;
  justify-self: start;
  white-space: nowrap;
  flex-shrink: 0;
  color: #11d6c5;
  background: rgba(17, 214, 197, 0.14);
  min-height: 24px;
  padding: 2px 9px;
}

.payment-status-stack {
  display: inline-grid;
  grid-template-columns: auto auto;
  align-items: center;
  gap: 8px;
  width: fit-content;
  max-width: 100%;
}

.registration-payment-value .payment-status-stack {
  width: 100%;
}

.registration-grid-merged .registration-field:last-child,
.registration-payment-value {
  width: 100%;
  justify-self: stretch;
}

.registration-payment-value .payment-status-stack {
  display: grid;
  grid-template-columns: auto 1fr;
  min-width: 100%;
}

.registration-payment-value .mistake-link {
  justify-self: end;
}

.mistake-link {
  padding: 0;
  color: var(--muted);
  background: transparent;
  border: 0;
  font-size: 12px;
  font-weight: 700;
  text-decoration: underline;
  white-space: nowrap;
}

.mistake-link:hover {
  color: #ffffff;
  background: transparent;
}

.registration-value {
  display: grid;
  gap: 8px;
  min-width: 0;
  font-weight: 700;
  word-break: break-word;
}

.registration-name-value {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  width: fit-content;
  max-width: 100%;
}

.registration-icon-actions {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  flex: 0 0 auto;
}

.registration-name-text {
  min-width: 0;
}

.text-link-button {
  width: fit-content;
  padding: 0;
  color: var(--primary);
  background: transparent;
  border: 0;
  font-size: 14px;
  font-weight: 800;
  cursor: pointer;
}

.text-link-button:hover {
  color: var(--primary-dark);
}

.detail-icon-button {
  display: inline-flex;
  flex: 0 0 32px;
  align-items: center;
  justify-content: center;
  width: 32px;
  min-width: 32px;
  min-height: 32px;
  height: 32px;
  aspect-ratio: 1 / 1;
  padding: 0;
  color: #c7d7f8;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid #4a5f80;
  border-radius: 999px;
}

.detail-icon-button:hover {
  color: #ffffff;
  background: rgba(93, 135, 255, 0.18);
  border-color: #6e92ff;
}

.note-icon-button {
  color: #ffd38a;
  border-color: rgba(255, 211, 138, 0.42);
}

.note-icon-button:hover {
  color: #ffe1ad;
  background: rgba(255, 211, 138, 0.14);
  border-color: rgba(255, 211, 138, 0.72);
}

.detail-icon-button svg {
  width: 16px;
  height: 16px;
}

.modal.hidden {
  display: none;
}

.modal {
  position: fixed;
  inset: 0;
  z-index: 200;
}

.modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(10, 18, 32, 0.62);
}

.modal-dialog {
  position: relative;
  z-index: 1;
  width: min(760px, calc(100% - 24px));
  max-height: calc(100vh - 24px);
  margin: 12px auto;
  overflow: auto;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.modal-head {
  position: sticky;
  top: 0;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 18px 20px;
  background: var(--surface);
  border-bottom: 1px solid var(--line);
}

.modal-head h3 {
  margin: 0;
  font-size: 20px;
}

.icon-button {
  width: 40px;
  min-width: 40px;
  height: 40px;
  padding: 0;
  color: var(--text);
  background: transparent;
  border: 1px solid var(--line);
  border-radius: 8px;
  font-size: 24px;
  line-height: 1;
}

.modal-body {
  padding: 20px;
}

.private-note-content {
  margin: 0;
  color: var(--text);
  font-size: 16px;
  font-weight: 700;
  line-height: 1.8;
  white-space: pre-wrap;
  word-break: break-word;
}

.detail-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.detail-item {
  display: grid;
  gap: 6px;
  padding: 14px;
  background: #25344b;
  border: 1px solid var(--line);
  border-radius: 8px;
}

.detail-label {
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
}

.detail-value {
  font-weight: 700;
  white-space: pre-wrap;
  word-break: break-word;
}

.modal-actions {
  display: flex;
  justify-content: flex-end;
  gap: 10px;
  margin-top: 20px;
  padding-top: 16px;
  border-top: 1px solid var(--line);
}

.admin-course-table .course-row {
  grid-template-columns: minmax(200px, 1.25fr) minmax(220px, 1.25fr) 90px 140px 150px 150px 90px;
}

.admin-course-table .course-cell[data-label="狀態/名額"] {
  display: grid;
  justify-items: start;
  gap: 6px;
}

.admin-course-table .pill {
  width: fit-content;
  max-width: 100%;
}

.mobile-course-bar {
  display: none;
}

.shell {
  width: min(1152px, calc(100% - 32px));
  margin: 0 auto;
  padding: 28px 0 56px;
}

.loading-overlay {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 24px;
  background: rgba(246, 249, 252, 0.72);
  backdrop-filter: blur(4px);
}

.loading-overlay.is-visible {
  display: flex;
}

.toast {
  position: fixed;
  left: 50%;
  bottom: 24px;
  z-index: 120;
  width: min(calc(100% - 32px), 420px);
  padding: 14px 16px;
  color: var(--text);
  background: #fff;
  border: 1px solid var(--line);
  border-left: 5px solid var(--primary);
  border-radius: 8px;
  box-shadow: 0 18px 40px rgba(21, 35, 64, 0.18);
  font-weight: 800;
  line-height: 1.5;
  transform: translate(-50%, 16px);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.18s ease, transform 0.18s ease;
}

.toast.is-visible {
  transform: translate(-50%, 0);
  opacity: 1;
}

.toast.ok {
  border-left-color: var(--ok);
}

.toast.error {
  border-left-color: var(--danger);
  color: var(--danger);
}

.loading-box {
  display: grid;
  justify-items: center;
  gap: 12px;
  min-width: 180px;
  padding: 22px 24px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
  color: var(--text);
  font-weight: 800;
}

.loading-spinner {
  width: 34px;
  height: 34px;
  border: 4px solid #e8eef8;
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

.admin-page .loading-overlay {
  background: rgba(14, 24, 39, 0.62);
}

.admin-page .loading-box {
  color: #f6f8fc;
  background: #2d3b52;
  border-color: #526783;
  box-shadow: 0 20px 48px rgba(0, 0, 0, 0.32);
}

.admin-page .loading-spinner {
  border-color: rgba(255, 255, 255, 0.22);
  border-top-color: #8bd7ff;
}

.admin-auth-locked {
  overflow: hidden;
}

.admin-auth-overlay {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: grid;
  place-items: center;
  padding: 20px;
  background: rgba(10, 18, 32, 0.78);
  backdrop-filter: blur(8px);
}

.admin-auth-box {
  display: grid;
  gap: 16px;
  width: min(100%, 380px);
  padding: 24px;
  color: var(--text);
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.admin-auth-box h2 {
  margin: 0;
  font-size: 22px;
}

.password-field {
  position: relative;
  display: block;
}

.password-field input {
  padding-right: 46px;
}

.password-toggle {
  position: absolute;
  top: 50%;
  right: 8px;
  transform: translateY(-50%);
  width: 34px;
  min-width: 34px;
  height: 34px;
  min-height: 34px;
  padding: 0;
  color: #dbe8ff;
  background: transparent;
  border: 0;
  border-radius: 6px;
  font-size: 16px;
  line-height: 1;
}

.password-toggle:hover {
  color: #ffffff;
  background: rgba(255, 255, 255, 0.08);
}

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

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 18px;
}

.brand {
  margin: 0;
  font-size: clamp(24px, 5vw, 38px);
  line-height: 1.15;
}

.page-hero {
  display: flex;
  justify-content: space-between;
  align-items: center;
  min-height: 116px;
  margin-bottom: 22px;
  padding: 28px 32px;
  background: #eaf1ff;
  border: 1px solid #dce8ff;
  border-radius: 8px;
  overflow: hidden;
}

.page-hero h2 {
  margin: 0;
  font-size: clamp(24px, 4vw, 34px);
}

.hero-action-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 18px;
}

.course-share-button {
  display: none;
  place-items: center;
  width: 38px;
  height: 38px;
  border: 1px solid rgba(6, 199, 85, 0.26);
  border-radius: 999px;
  background: rgba(6, 199, 85, 0.12);
  color: #06c755;
  cursor: pointer;
}

.course-share-button svg {
  width: 18px;
  height: 18px;
  fill: currentColor;
}

.course-share-button:active {
  transform: translateY(1px);
}

.eyebrow {
  margin: 0 0 6px;
  color: var(--primary);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0;
}

.text-link {
  display: inline-block;
  margin-bottom: 14px;
  color: var(--primary);
  font-size: 14px;
  font-weight: 700;
  text-decoration: none;
}

.hero-course-block .text-link {
  display: inline-block;
  margin-bottom: 0;
}

.text-link:hover,
.inline-map-link:hover {
  color: var(--primary-dark);
}

.hero-detail {
  margin: 8px 0 0;
  color: var(--muted);
  font-size: 15px;
}

.hero-detail-group {
  display: grid;
  gap: 6px;
  margin-top: 8px;
}

.hero-detail-value {
  margin: 0;
  color: var(--text);
  font-weight: 700;
}

.hero-description {
  margin: 6px 0 0;
  color: var(--text);
  white-space: pre-wrap;
}

.inline-map-link {
  color: var(--primary);
  font-weight: 700;
  text-decoration: none;
}

.hero-address-link {
  display: inline-block;
  width: fit-content;
  max-width: 100%;
  word-break: break-word;
}

.tabs {
  display: flex;
  gap: 8px;
  margin-bottom: 18px;
}

.tab-button {
  width: auto;
  min-height: 44px;
  color: var(--muted);
  background: transparent;
  border: 1px solid transparent;
  padding: 10px 18px;
}

.tab-button:hover {
  color: var(--primary);
  background: #eef4ff;
}

.tab-button.active {
  color: #fff;
  background: var(--primary);
  box-shadow: 0 8px 20px rgba(93, 135, 255, 0.24);
}

.tab-panel {
  display: none;
}

.tab-panel.active {
  display: block;
}

.panel-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 22px;
}

.panel-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 18px;
}

.line-login-panel {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 18px;
  padding: 14px;
  background: #f7fbf8;
  border: 1px solid #d7f0df;
  border-radius: 8px;
}

.manual-query-panel {
  margin-bottom: 18px;
  padding: 14px;
  background: #f6f9ff;
  border: 1px solid #dbe7ff;
  border-radius: 8px;
}

.manual-query-row {
  display: grid;
  grid-template-columns: minmax(180px, 1fr) minmax(180px, 1fr) auto;
  gap: 12px;
  align-items: end;
}

.manual-query-row button {
  min-width: 96px;
}

.query-method-panel {
  display: grid;
  gap: 10px;
  margin-bottom: 16px;
}

.query-method-options {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.inline-choice {
  align-items: center;
  margin: 0;
  background: #fff;
}

.inline-choice input {
  margin-top: 0;
}

.line-login-title {
  margin: 0 0 4px;
  color: var(--text);
  font-weight: 800;
}

.line-login-actions {
  display: flex;
  flex: 0 0 auto;
  gap: 8px;
}

.line-login-button {
  background: #06c755;
}

.line-login-button:hover {
  background: #05ad4a;
}

.nav {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 18px;
  margin-bottom: 14px;
  box-shadow: var(--shadow);
}

.section-title {
  margin: 0 0 12px;
  font-size: 20px;
}

.muted {
  color: var(--muted);
}

.form-note {
  margin: 4px 0 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.5;
}

.field-help {
  color: var(--muted);
  font-size: 13px;
  font-weight: 400;
  line-height: 1.6;
  white-space: pre-wrap;
}

.field-help-panel {
  margin: 14px 0 16px;
  padding: 12px 14px;
  color: var(--muted);
  background: #f6f9fc;
  border: 1px solid var(--line);
  border-radius: 8px;
  font-size: 13px;
  font-weight: 400;
  line-height: 1.6;
  white-space: pre-wrap;
}

.field-group {
  margin-top: 14px;
  margin-bottom: 18px;
}

.field-group-title {
  margin: 0 0 8px;
  font-size: 16px;
}

.registration-type-group {
  margin-bottom: 0;
}

.registration-type-group h3 {
  margin: 0 0 8px;
  font-size: 16px;
}

.required-mark {
  color: #dc2626;
}

.stacked-form {
  display: grid;
  gap: 18px;
}

.form-section {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 18px;
  box-shadow: var(--shadow);
}

.form-section .panel-head {
  margin-bottom: 14px;
}

.payment-note-panel {
  margin-bottom: 14px;
  padding: 14px 16px;
  background: #f3f6fa;
  border: 1px solid #dbe4ef;
  border-radius: 8px;
}

.payment-note-panel h3 {
  margin: 0 0 8px;
  font-size: 15px;
}

.payment-note-panel p {
  margin: 0;
  color: var(--text);
  white-space: pre-wrap;
}

.grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.birthday-fields {
  display: grid;
  grid-template-columns: minmax(88px, 1fr) auto minmax(82px, 1fr) auto minmax(82px, 1fr) auto;
  align-items: center;
  gap: 8px;
}

.birthday-fields input,
.birthday-fields select {
  min-width: 0;
}

label {
  display: grid;
  gap: 6px;
  font-weight: 700;
}

label .field-label {
  display: inline;
}

label .required-mark,
.card.compact h3 .required-mark {
  display: inline;
  margin-left: 2px;
}

input,
textarea,
select {
  width: 100%;
  min-height: 44px;
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 10px 12px;
  font: inherit;
  background: #fff;
}

input:focus,
textarea:focus,
select:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(93, 135, 255, 0.14);
  outline: none;
}

textarea {
  min-height: 96px;
  resize: vertical;
}

.payment-note-editor {
  min-height: 192px;
}

.admin-password-setting {
  margin-top: 8px;
}

.admin-logout-button {
  width: auto;
  min-height: 0;
  padding: 0;
  color: inherit;
  background: transparent;
  border: 0;
  font: inherit;
  font-weight: 700;
}

.admin-logout-button:hover {
  color: #ffffff;
  background: transparent;
  text-decoration: underline;
}

.admin-auth-line {
  display: grid;
  gap: 8px;
  margin-top: 14px;
  padding-top: 14px;
  border-top: 1px solid var(--line);
}

.admin-line-setting {
  display: grid;
  gap: 12px;
  margin-top: 18px;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
}

.compact-head {
  margin-bottom: 0;
}

.admin-line-user-list {
  display: grid;
  gap: 10px;
}

.admin-line-user {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 12px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--line);
  border-radius: 8px;
}

.admin-line-user-main {
  display: flex;
  align-items: center;
  min-width: 0;
  gap: 10px;
}

.admin-line-avatar {
  width: 40px;
  min-width: 40px;
  height: 40px;
  object-fit: cover;
  border-radius: 999px;
}

.admin-line-avatar.placeholder {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: #06c755;
  color: #fff;
  font-size: 11px;
  font-weight: 800;
}

.actions {
  display: flex;
  gap: 10px;
  align-items: center;
  flex-wrap: wrap;
  margin-top: 14px;
}

button,
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  border: 1px solid transparent;
  border-radius: 6px;
  padding: 9px 14px;
  background: var(--primary);
  color: white;
  font: inherit;
  font-weight: 700;
  cursor: pointer;
  text-decoration: none;
}

button:hover,
.button:hover {
  background: var(--primary-dark);
}

button:disabled {
  cursor: not-allowed;
  opacity: 0.6;
}

button.secondary,
.button.secondary {
  color: var(--text);
  background: #fff;
  border-color: var(--line);
}

button.secondary:hover,
.button.secondary:hover {
  background: #f6f9fc;
}

button.danger {
  background: var(--danger);
}

.status {
  min-height: 24px;
  margin-top: 10px;
  color: var(--muted);
}

.status.ok {
  color: var(--ok);
}

.status.error {
  color: var(--danger);
}

.list {
  display: grid;
  gap: 12px;
}

.course-table {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
}

.course-row {
  display: grid;
  grid-template-columns: minmax(220px, 1.4fr) minmax(220px, 1.3fr) 100px 150px 120px;
  align-items: center;
  gap: 16px;
  padding: 16px 20px;
  background: #fff;
  border-bottom: 1px solid var(--line);
}

.record-table .course-row {
  grid-template-columns: minmax(200px, 1.2fr) minmax(200px, 1.2fr) 120px 120px 150px 90px;
}

.course-row:last-child {
  border-bottom: 0;
}

.course-head {
  color: #4b5872;
  background: #f2f6fb;
  font-size: 13px;
  font-weight: 800;
}

.course-cell {
  min-width: 0;
}

.course-name-cell {
  display: grid;
  gap: 4px;
}

.course-name-cell strong {
  font-size: 16px;
}

.address-button {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  width: fit-content;
  min-height: 0;
  padding: 0;
  color: var(--muted);
  background: transparent;
  border: 0;
  font-size: 13px;
  font-weight: 600;
  text-align: left;
}

.address-button:hover {
  color: var(--primary);
  background: transparent;
}

.address-text {
  word-break: break-word;
}

.copy-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 18px;
  height: 18px;
  color: var(--primary);
  font-size: 13px;
  font-weight: 800;
}

.date-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.date-tag {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  padding: 4px 10px;
  color: #4d6fd6;
  background: #edf3ff;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 700;
}

.registration-date-tags {
  margin-top: 12px;
}

.admin-date-tags {
  margin-top: 2px;
}

.admin-date-tag {
  display: inline-flex;
  align-items: center;
  width: fit-content;
  max-width: 100%;
  min-height: 24px;
  padding: 2px 9px;
  color: #7fb6ff;
  background: rgba(64, 96, 168, 0.5);
  border-radius: 999px;
  font-size: 12px;
  font-weight: 700;
}

.fee-summary {
  display: grid;
  gap: 12px;
  margin-top: 14px;
  padding-top: 14px;
  border-top: 1px solid var(--line);
}

.fee-summary-row {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 8px;
  align-items: start;
  color: var(--text);
  line-height: 1.7;
}

.fee-summary-label {
  font-weight: 800;
  white-space: nowrap;
}

.fee-summary-tags {
  margin-top: 0;
}

.fee-total {
  color: var(--danger);
  font-weight: 900;
}

.muted-text {
  color: var(--muted);
}

.price-cell {
  font-weight: 800;
}

.action-cell button {
  width: 100%;
}

.small-button {
  min-height: 36px;
  padding: 7px 12px;
}

.course-card {
  display: grid;
  gap: 8px;
}

.course-card h3 {
  margin: 0;
  font-size: 22px;
}

.meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 14px;
  color: var(--muted);
}

.choice-list {
  display: grid;
  gap: 8px;
  margin-top: 8px;
}

.choice {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  padding: 10px;
  border: 1px solid var(--line);
  border-radius: 6px;
}

.choice input {
  width: 18px;
  min-height: 18px;
  margin-top: 3px;
}

.table-wrap {
  overflow-x: auto;
}

table {
  width: 100%;
  border-collapse: collapse;
  min-width: 720px;
}

th,
td {
  border-bottom: 1px solid var(--line);
  padding: 10px;
  text-align: left;
  vertical-align: top;
}

th {
  background: #fbf4ea;
  white-space: nowrap;
}

.pill {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  border-radius: 999px;
  padding: 3px 10px;
  font-size: 13px;
  font-weight: 700;
  background: #f1ebe2;
  color: var(--muted);
}

.pill.ok {
  background: #dcfce7;
  color: var(--ok);
}

.hidden {
  display: none !important;
}

@media (max-width: 720px) {
  .app-header {
    min-height: 64px;
    padding: 0 16px;
  }

  .app-title {
    font-size: 19px;
  }

  .admin-header {
    gap: 10px;
    align-items: flex-start;
    flex-direction: column;
    justify-content: center;
    padding-top: 10px;
    padding-bottom: 10px;
  }

  .admin-header-links {
    font-size: 13px;
  }

  .mobile-course-bar {
    position: fixed;
    top: 64px;
    left: 0;
    right: 0;
    z-index: 19;
    display: block;
    padding: 8px 16px;
    background: rgba(255, 255, 255, 0.96);
    border-bottom: 1px solid var(--line);
    box-shadow: 0 10px 22px rgba(21, 35, 64, 0.08);
    transform: translateY(-100%);
    opacity: 0;
    pointer-events: none;
    transition: transform 0.18s ease, opacity 0.18s ease;
  }

  .mobile-course-bar.is-visible {
    transform: translateY(0);
    opacity: 1;
  }

  .mobile-course-title {
    display: block;
    overflow: hidden;
    color: var(--text);
    font-size: 14px;
    font-weight: 800;
    text-overflow: ellipsis;
    white-space: nowrap;
  }

  .shell {
    width: min(100% - 20px, 960px);
    padding-top: 14px;
  }

  .page-hero {
    min-height: auto;
    padding: 20px;
  }

  .course-share-button {
    display: grid;
  }

  .tabs {
    display: grid;
    grid-template-columns: 1fr 1fr;
  }

  .tab-button {
    width: 100%;
  }

  .panel-card {
    padding: 14px;
  }

  .panel-head {
    display: grid;
    gap: 4px;
  }

  .line-login-panel,
  .line-login-actions {
    display: grid;
    width: 100%;
  }

  .manual-query-row {
    grid-template-columns: 1fr;
  }

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

  .grid,
  .grid-3 {
    grid-template-columns: 1fr;
  }

  .card {
    padding: 14px;
  }

  .form-section {
    padding: 14px;
  }

  .nav,
  .actions {
    width: 100%;
  }

  button,
  .button {
    width: 100%;
  }

  .meta {
    display: grid;
    gap: 4px;
  }

  .course-table {
    display: grid;
    gap: 12px;
    border: 0;
    overflow: visible;
  }

  .course-head {
    display: none;
  }

  .course-row {
    display: grid;
    grid-template-columns: 1fr;
    min-width: 0;
    gap: 10px;
    padding: 14px;
    border: 1px solid var(--line);
    border-radius: 8px;
    box-shadow: 0 10px 24px rgba(21, 35, 64, 0.05);
  }

  .record-table .course-row {
    grid-template-columns: 1fr;
  }

  .admin-course-table .course-row {
    grid-template-columns: 1fr;
  }

  .admin-course-table {
    gap: 14px;
  }

  .admin-course-table .course-row {
    align-items: stretch;
    background: var(--surface);
  }

  .admin-course-table .course-name-cell strong {
    font-size: 18px;
    line-height: 1.35;
  }

  .admin-course-table .course-cell[data-label="課程日期"] .date-tags {
    width: 100%;
    gap: 8px;
    overflow: visible;
  }

  .admin-course-table .date-tag {
    max-width: 100%;
    white-space: normal;
    overflow-wrap: anywhere;
  }

  .admin-course-table .course-cell[data-label="狀態/名額"] {
    justify-items: start;
    gap: 8px;
  }

  .admin-course-table .action-cell {
    margin-top: 4px;
  }

  .course-row.course-head {
    display: none !important;
    padding: 0;
    border: 0;
    box-shadow: none;
  }

  .course-cell {
    display: grid;
    gap: 4px;
    min-width: 0;
  }

  .course-cell .date-tags {
    min-width: 0;
  }

  .record-table .date-tag {
    max-width: 100%;
  }

  .course-cell::before {
    content: attr(data-label);
    color: var(--muted);
    font-size: 12px;
    font-weight: 800;
  }

  .course-name-cell::before {
    display: none;
  }

  .admin-toolbar,
  .admin-list-head,
  .admin-filter-form {
    grid-template-columns: 1fr;
  }

  .admin-list-head {
    display: grid;
  }

  .admin-date-row {
    display: block;
  }

  .admin-date-range {
    width: 100%;
    justify-content: space-between;
    gap: 8px;
    padding: 10px 12px;
  }

  .admin-date-range-form,
  .admin-status-filter {
    width: 100%;
  }

  .admin-date-range-form {
    grid-template-columns: 1fr;
  }

  .admin-date-field {
    flex: 1 1 0;
  }

  .admin-date-field input {
    width: min(100%, 120px);
  }

  .course-date-picker-row {
    grid-template-columns: 1fr;
  }

  .admin-page #courseForm .course-date-action-row {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    width: 100%;
    justify-self: stretch;
  }

  .admin-page #courseForm .course-date-action-row button.small-button,
  .admin-page #courseForm .course-date-action-row .button.small-button {
    width: 100%;
  }

  .quick-date-month-row {
    grid-template-columns: minmax(0, 1fr) auto;
  }

  .quick-date-weekdays {
    grid-template-columns: 1fr;
  }

  .registration-grid,
  .detail-grid {
    grid-template-columns: 1fr;
  }

  .registration-label {
    display: none;
  }

  .registration-field {
    display: grid;
    gap: 0;
    width: 100%;
    justify-self: stretch;
  }

  .registration-name-field {
    margin-bottom: 2px;
  }

  .registration-name-value {
    width: 100%;
    justify-content: space-between;
  }

  .registration-icon-actions {
    margin-left: auto;
  }

  .payment-status-stack {
    display: grid !important;
    grid-template-columns: auto 1fr !important;
    align-items: center;
    justify-items: stretch;
    width: 100% !important;
    min-width: 100%;
    gap: 8px;
  }

  .registration-payment-value {
    display: block !important;
    width: 100% !important;
    justify-self: stretch;
    text-align: left;
  }

  .mistake-link {
    justify-self: end !important;
    margin-left: 0;
  }

  .registration-payment-value .mistake-link {
    display: inline-block;
    justify-self: end !important;
    margin-left: 0;
    text-align: right;
  }

  .registration-status-tabs {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 8px;
  }

  .registration-status-tabs .tab-button {
    width: 100%;
    min-width: 0;
    padding-inline: 8px;
  }

  .modal-dialog {
    width: min(100% - 16px, 760px);
    max-height: calc(100vh - 16px);
    margin: 8px auto;
  }

  .modal-body,
  .modal-head {
    padding: 16px;
  }
}

.card.compact {
  padding: 12px;
}

.card.compact h3 {
  margin: 0 0 8px;
  font-size: 16px;
}