:root {
  --bg-page: #0a0c11;
  --bg-surface: #12151e;
  --bg-elevated: #181c28;
  --bg-input: #0d1017;
  --gold-bright: #f8df8c;
  --gold-main: #e8a825;
  --gold-border: rgba(232, 168, 37, 0.28);
  --text-main: #f3ede0;
  --text-muted: #a69c89;
  --text-dim: #756e60;
  --success: #4ade80;
  --warning: #fbbf24;
  --danger: #ff6b6b;
  --danger-bg: rgba(217, 56, 41, 0.16);
  --font-sans: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, -apple-system, sans-serif;
  color-scheme: dark;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: radial-gradient(circle at top right, rgba(232, 168, 37, 0.08), transparent 45%), var(--bg-page);
  color: var(--text-main);
  font-family: var(--font-sans);
  line-height: 1.5;
}

.visually-hidden:where(:not(:focus-within, :active)) {
  position: absolute !important;
  clip-path: inset(50%) !important;
  overflow: hidden !important;
  width: 1px !important;
  height: 1px !important;
  margin: -1px !important;
  padding: 0 !important;
  border: 0 !important;
  white-space: nowrap !important;
}

/* Topbar */
.topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(10, 12, 17, 0.92);
  border-bottom: 1px solid var(--gold-border);
  backdrop-filter: blur(10px);
}

.topbar-inner {
  max-width: 1240px;
  margin: 0 auto;
  padding: 12px 20px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.brand-group {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand-group h1 {
  margin: 0;
  font-size: 1.12rem;
  color: var(--gold-bright);
}

.brand-sub {
  margin: 2px 0 0;
  font-size: 0.76rem;
  color: var(--text-muted);
}

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

.mode-pill {
  padding: 5px 12px;
  border-radius: 999px;
  font-size: 0.76rem;
  border: 1px solid rgba(255, 255, 255, 0.14);
  background: var(--bg-elevated);
  color: var(--text-muted);
}

.mode-pill.is-cloud {
  border-color: rgba(74, 222, 128, 0.45);
  color: var(--success);
}

.container {
  max-width: 1240px;
  margin: 0 auto;
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

/* Buttons */
.btn-gold,
.btn-outline,
.btn-danger,
.btn-xs {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  min-height: 42px;
  padding: 8px 16px;
  border-radius: 10px;
  font: inherit;
  font-size: 0.88rem;
  font-weight: 700;
  text-decoration: none;
  cursor: pointer;
}

.btn-gold {
  border: none;
  background: linear-gradient(135deg, var(--gold-bright), var(--gold-main));
  color: #161106;
}

.btn-outline {
  border: 1px solid var(--gold-border);
  background: rgba(232, 168, 37, 0.08);
  color: var(--gold-bright);
}

.btn-danger {
  border: 1px solid rgba(255, 107, 107, 0.45);
  background: rgba(217, 56, 41, 0.2);
  color: #ffd0cc;
}

.btn-xs {
  min-height: 32px;
  padding: 4px 10px;
  border-radius: 7px;
  font-size: 0.76rem;
  font-weight: 600;
}

button:focus-visible,
a:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible,
.table-wrapper:focus-visible {
  outline: 2px solid var(--gold-bright);
  outline-offset: 2px;
}

/* KPI Row */
.kpi-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 14px;
}

.kpi-card {
  padding: 16px 18px;
  border-radius: 14px;
  background: var(--bg-surface);
  border: 1px solid var(--gold-border);
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.kpi-label {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.kpi-value {
  font-size: 1.75rem;
  color: var(--gold-bright);
  font-variant-numeric: tabular-nums;
  line-height: 1.15;
}

.kpi-value small {
  font-size: 0.9rem;
  color: var(--text-dim);
}

.kpi-date {
  font-size: 1.15rem;
}

.kpi-sub {
  font-size: 0.78rem;
  color: var(--text-dim);
}

.progress-track {
  height: 6px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
  overflow: hidden;
  margin-top: 2px;
}

.progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--gold-main), var(--gold-bright));
  border-radius: 999px;
}

/* Admin Tabs */
.admin-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.admin-tab {
  min-height: 44px;
  padding: 8px 18px;
  border-radius: 10px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  background: var(--bg-surface);
  color: var(--text-muted);
  font: inherit;
  font-weight: 700;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.admin-tab.active {
  border-color: var(--gold-main);
  background: rgba(232, 168, 37, 0.16);
  color: var(--gold-bright);
}

.tab-badge {
  padding: 1px 7px;
  border-radius: 999px;
  background: rgba(232, 168, 37, 0.22);
  color: var(--gold-bright);
  font-size: 0.75rem;
  font-variant-numeric: tabular-nums;
}

/* Main Panel */
.panel-card {
  padding: 18px;
  border-radius: 16px;
  background: var(--bg-surface);
  border: 1px solid var(--gold-border);
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.panel-card[hidden] {
  display: none;
}

.toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.filter-form {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.filter-form input,
.filter-form select {
  min-height: 44px;
  padding: 8px 12px;
  border-radius: 10px;
  border: 1px solid rgba(232, 168, 37, 0.28);
  background: var(--bg-input);
  color: var(--text-main);
  font: inherit;
  font-size: max(1rem, 0.92rem);
}

.filter-form input {
  min-width: min(280px, 75vw);
}

.toolbar-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

/* Responsive Data Table (per Modern Web Guidance `responsive-table`) */
.table-wrapper {
  overflow: auto;
  max-inline-size: 100%;
  max-block-size: min(560px, 68vh);
  container-type: inline-size;
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.data-table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  text-align: left;
  font-size: 0.88rem;
  --label-1: "序号 / 姓名";
  --label-2: "联系电话";
  --label-3: "参与人数";
  --label-4: "车队 / 备注";
  --label-5: "提交时间";
  --label-6: "操作";
}

.msg-table {
  --label-1: "署名 / 车队";
  --label-2: "祝福内容";
  --label-3: "展示状态";
  --label-4: "提交时间";
  --label-5: "操作";
}

.data-table thead {
  position: sticky;
  inset-block-start: 0;
  z-index: 2;
  background: var(--bg-elevated);
}

.data-table th,
.data-table td {
  padding: 12px 14px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.07);
  vertical-align: middle;
}

.data-table thead th {
  color: var(--gold-bright);
  font-weight: 700;
  white-space: nowrap;
}

.data-table tbody th {
  position: sticky;
  inset-inline-start: 0;
  z-index: 1;
  background: var(--bg-surface);
  font-weight: 700;
  color: var(--text-main);
}

.data-table tbody tr:hover td,
.data-table tbody tr:hover th {
  background: rgba(232, 168, 37, 0.05);
}

.row-sub {
  display: block;
  font-size: 0.74rem;
  font-weight: 400;
  color: var(--text-dim);
}

.dup-badge {
  display: inline-block;
  margin-left: 6px;
  padding: 1px 6px;
  border-radius: 4px;
  background: rgba(251, 191, 36, 0.18);
  color: var(--warning);
  font-size: 0.7rem;
}

.status-tag {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 3px 9px;
  border-radius: 999px;
  font-size: 0.74rem;
  font-weight: 700;
}

.status-approved {
  background: rgba(74, 222, 128, 0.14);
  color: var(--success);
}

.status-pending {
  background: rgba(251, 191, 36, 0.16);
  color: var(--warning);
}

.status-hidden {
  background: rgba(255, 255, 255, 0.08);
  color: var(--text-dim);
}

.pin-pill {
  margin-left: 6px;
  padding: 2px 7px;
  border-radius: 999px;
  background: rgba(232, 168, 37, 0.22);
  color: var(--gold-bright);
  font-size: 0.72rem;
}

.row-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.empty-state {
  margin: 8px 0 4px;
  text-align: center;
  color: var(--text-muted);
  font-size: 0.9rem;
}

@container (width < 700px) {
  .data-table,
  .data-table thead,
  .data-table tbody,
  .data-table tr,
  .data-table th,
  .data-table td {
    display: block;
  }

  .data-table thead {
    display: none;
  }

  .data-table tbody tr {
    margin-block-end: 12px;
    border: 1px solid var(--gold-border);
    border-radius: 12px;
    overflow: hidden;
    background: var(--bg-elevated);
  }

  .data-table tbody th {
    position: sticky;
    inset-block-start: 0;
    z-index: 2;
    background: #1e2332;
    border-bottom: 1px solid var(--gold-border);
  }

  .data-table td {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
    padding: 9px 14px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  }

  .data-table td:last-child {
    border-bottom: none;
  }

  .data-table td:nth-child(2)::before {
    content: var(--label-2) ": ";
    color: var(--text-dim);
    font-size: 0.78rem;
  }
  .data-table td:nth-child(3)::before {
    content: var(--label-3) ": ";
    color: var(--text-dim);
    font-size: 0.78rem;
  }
  .data-table td:nth-child(4)::before {
    content: var(--label-4) ": ";
    color: var(--text-dim);
    font-size: 0.78rem;
  }
  .data-table td:nth-child(5)::before {
    content: var(--label-5) ": ";
    color: var(--text-dim);
    font-size: 0.78rem;
  }
  .data-table td:nth-child(6)::before {
    content: var(--label-6) ": ";
    color: var(--text-dim);
    font-size: 0.78rem;
  }
}

/* Settings Form */
.cfg-head h2 {
  margin: 0 0 4px;
  font-size: 1.15rem;
  color: var(--gold-bright);
}

.cfg-head p {
  margin: 0;
  font-size: 0.85rem;
  color: var(--text-muted);
}

.cfg-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 14px;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 5px;
}

.field label {
  font-size: 0.86rem;
  font-weight: 600;
}

.req {
  color: var(--danger);
}

.hint {
  font-size: 0.75rem;
  color: var(--text-dim);
}

.field input,
.field select,
.field textarea {
  width: 100%;
  min-height: 44px;
  padding: 9px 12px;
  border-radius: 10px;
  border: 1px solid rgba(232, 168, 37, 0.28);
  background: var(--bg-input);
  color: var(--text-main);
  font: inherit;
  font-size: max(1rem, 0.94rem);
}

.error-msg {
  display: none;
  font-size: 0.78rem;
  color: var(--danger);
}

.field :is(input, textarea):is(:user-invalid, .user-invalid-fallback) {
  border-color: var(--danger);
  background-color: var(--danger-bg);
}

.field:has(:is(input, textarea):is(:user-invalid, .user-invalid-fallback)) .error-msg {
  display: block;
}

.switch-row {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 16px 0;
  padding: 12px 14px;
  border-radius: 10px;
  background: var(--bg-elevated);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.switch-row input[type="checkbox"] {
  width: 20px;
  height: 20px;
  accent-color: var(--gold-main);
  flex-shrink: 0;
}

.cfg-actions {
  display: flex;
  justify-content: flex-end;
}

/* Native <dialog> Modals */
dialog.admin-dialog {
  width: min(460px, calc(100vw - 32px));
  padding: 0;
  border-radius: 16px;
  border: 1px solid var(--gold-border);
  background: var(--bg-surface);
  color: var(--text-main);
  box-shadow: 0 28px 70px rgba(0, 0, 0, 0.85);
}

dialog.admin-dialog:modal {
  overscroll-behavior: contain;
}

dialog.admin-dialog::backdrop {
  background: rgba(4, 5, 8, 0.78);
  backdrop-filter: blur(4px);
  overflow: hidden;
  overscroll-behavior: contain;
}

.dialog-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 18px;
  border-bottom: 1px solid rgba(232, 168, 37, 0.2);
}

.dialog-header h3 {
  margin: 0;
  font-size: 1.02rem;
  color: var(--gold-bright);
}

.dialog-close {
  width: 34px;
  height: 34px;
  border-radius: 8px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  background: transparent;
  color: var(--text-muted);
  cursor: pointer;
}

.dialog-form {
  padding: 18px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.dialog-footer {
  display: flex;
  justify-content: flex-end;
  gap: 10px;
  margin-top: 6px;
}

.confirm-text {
  margin: 0;
  font-size: 0.9rem;
  color: var(--text-muted);
}

.error-inline {
  margin: 0;
  color: var(--danger);
  font-size: 0.84rem;
}

/* Popover Toasts */
.toast-region {
  position: fixed;
  top: 16px;
  right: 16px;
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: 8px;
  width: min(360px, calc(100vw - 32px));
  pointer-events: none;
}

.toast-item {
  pointer-events: auto;
  position: relative;
  inset: auto;
  margin: 0;
  width: 100%;
  padding: 10px 14px;
  border-radius: 12px;
  border: 1px solid var(--gold-border);
  background: rgba(18, 21, 30, 0.97);
  color: var(--text-main);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  font-size: 0.85rem;
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.6);
  opacity: 0;
  transform: translateY(-6px);
  transition: opacity 0.2s ease, transform 0.2s ease;
  transition-behavior: allow-discrete;
}

.toast-item:is(:popover-open, .is-open) {
  display: flex;
  opacity: 1;
  transform: translateY(0);
}

@starting-style {
  .toast-item:is(:popover-open, .is-open) {
    opacity: 0;
    transform: translateY(-6px);
  }
}

.toast-close {
  background: none;
  border: none;
  color: var(--text-dim);
  cursor: pointer;
  padding: 4px 6px;
}