:root {
  --dt-bg-screen: #050505;
  --dt-bg-surface: #121212;
  --dt-bg-input: #1a1a1a;
  --dt-signal-orange: #f08418;
  --dt-signal-glow: rgba(240, 132, 24, 0.5);
  --dt-signal-text: #ffffff;
  --dt-text-secondary: #999999;
  --dt-border: #333333;
  --dt-border-active: #f08418;
  --dt-space: 16px;
  --dt-radius: 12px;
  --dt-input-height: 48px;
  --z-sticky: 100;
  --z-modal: 9999;
  --font-main: -apple-system, BlinkMacSystemFont, "Roboto", "Inter", "Helvetica Neue", sans-serif;
  --font-mono: "SF Mono", "Menlo", "Monaco", "Courier New", monospace;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  -webkit-tap-highlight-color: transparent;
}

html {
  overflow-x: hidden;
}
body {
  background: var(--dt-bg-screen);
  color: var(--dt-signal-text);
  font-family: var(--font-main);
  line-height: 1.5;
  padding-bottom: calc(40px + env(safe-area-inset-bottom, 0));
  overflow-x: hidden;
}

.mono {
  font-family: var(--font-mono);
  font-size: 0.9rem;
}
.text-secondary {
  color: var(--dt-text-secondary);
  font-size: 0.85rem;
  margin-top: 8px;
}

.top-header {
  position: sticky;
  top: 0;
  z-index: var(--z-sticky);
  background: rgba(5, 5, 5, 0.9);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--dt-border);
  padding: var(--dt-space);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
}
.header-title {
  font-weight: 800;
  font-size: 1.15rem;
  display: flex;
  align-items: center;
  gap: 8px;
}
.header-title::before {
  content: "";
  width: 8px;
  height: 8px;
  background: var(--dt-signal-orange);
  border-radius: 50%;
  box-shadow: 0 0 8px var(--dt-signal-glow);
}
.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.bento-container {
  display: flex;
  flex-direction: column;
  gap: var(--dt-space);
  padding: var(--dt-space);
  max-width: 1400px;
  margin: 0 auto;
}

.bento-card {
  background: var(--dt-bg-surface);
  border: 1px solid var(--dt-border);
  border-radius: var(--dt-radius);
  padding: var(--dt-space);
  display: flex;
  flex-direction: column;
  gap: 12px;
  min-width: 0;
}
.card-label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--dt-text-secondary);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.settings-grid {
  display: grid;
  gap: 12px;
}
@media (min-width: 768px) {
  .settings-grid {
    grid-template-columns: 1fr 1fr;
  }
}
.input-group {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.input-group label {
  font-size: 0.85rem;
  color: var(--dt-text-secondary);
}
.input-group.inline {
  flex-direction: row;
  align-items: center;
  gap: 8px;
}
.dt-input,
.dt-select {
  height: var(--dt-input-height);
  background: var(--dt-bg-input);
  border: 1px solid var(--dt-border);
  border-radius: 8px;
  color: var(--dt-signal-text);
  padding: 0 16px;
  font-size: 16px;
  outline: none;
  width: 100%;
}
.dt-select.narrow {
  width: auto;
  min-width: 120px;
}
.dt-input:focus,
.dt-select:focus {
  border-color: var(--dt-border-active);
  box-shadow: 0 0 0 2px var(--dt-signal-glow);
}
.settings-actions {
  grid-column: 1 / -1;
}

/* 避免瀏覽器對 <button> 套用預設深色字（在暗色底上看不清） */
button {
  font-family: inherit;
}
.btn {
  height: var(--dt-input-height);
  border-radius: 8px;
  font-weight: 800;
  font-size: 0.95rem;
  padding: 0 20px;
  border: none;
  cursor: pointer;
  transition: opacity 0.2s;
}
.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}
.btn-primary {
  background: var(--dt-signal-orange);
  color: #000;
  box-shadow: 0 0 12px var(--dt-signal-glow);
}
.btn-secondary {
  background: var(--dt-bg-input);
  color: var(--dt-signal-text);
  border: 1px solid var(--dt-border);
}
.btn-ghost {
  background: transparent;
  color: var(--dt-text-secondary);
  border: 1px solid var(--dt-border);
  height: 40px;
  font-weight: 600;
}

.sync-paused-banner {
  background: rgba(248, 113, 113, 0.12);
  border: 1px solid #f87171;
  color: #fecaca;
  padding: 12px 14px;
  border-radius: 10px;
  font-size: 0.85rem;
  line-height: 1.45;
}
.sync-paused-banner .mono {
  color: #fff;
}

.pending-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--dt-space);
}
.pending-count {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--dt-signal-orange);
  line-height: 1;
}

.pending-basis {
  margin-top: 12px;
  margin-bottom: 12px;
  font-size: 0.8rem;
  line-height: 1.5;
  max-width: 52rem;
}
.pending-basis .mono {
  color: #c4c4c4;
}

.pending-window-meta {
  margin-bottom: 8px;
  font-size: 0.78rem;
  color: var(--dt-text-secondary);
}
.pending-month-table-wrap {
  max-height: min(50vh, 420px);
  margin-bottom: 8px;
}
.pending-extra {
  font-size: 0.8rem;
  line-height: 1.45;
  color: #c8c8c8;
}
.pending-extra strong {
  color: #f0f0f0;
}
.pending-extra .mono {
  color: #d4d4d4;
}
.pending-count-cell {
  color: var(--dt-signal-orange);
  font-weight: 800;
}

.month-dashboard {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.month-chip {
  min-width: 100px;
  padding: 12px 14px;
  border-radius: var(--dt-radius);
  background: var(--dt-bg-input);
  border: 1px solid var(--dt-border);
  cursor: pointer;
  text-align: left;
  transition: border-color 0.2s, box-shadow 0.2s;
  color: var(--dt-signal-text);
  -webkit-appearance: none;
  appearance: none;
}
.month-chip:hover {
  border-color: var(--dt-border-active);
  color: var(--dt-signal-text);
}
.month-chip.active {
  border-color: var(--dt-signal-orange);
  box-shadow: 0 0 8px var(--dt-signal-glow);
  color: var(--dt-signal-text);
}
.month-chip .ym {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 0.95rem;
  color: #f5f5f5;
}
.month-chip .sub {
  font-size: 0.75rem;
  color: #b8b8b8;
  margin-top: 4px;
}

.toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: flex-end;
}

.table-container {
  overflow-x: auto;
  max-height: min(70vh, 720px);
  overflow-y: auto;
  border: 1px solid var(--dt-border);
  border-radius: 8px;
}
.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.85rem;
}
.data-table th,
.data-table td {
  padding: 10px 12px;
  text-align: left;
  border-bottom: 1px solid var(--dt-border);
  vertical-align: top;
}
.data-table th {
  background: var(--dt-bg-input);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--dt-text-secondary);
  position: sticky;
  top: 0;
  z-index: 1;
}
.data-table td {
  word-break: break-word;
  color: #eaeaea;
}
.data-table td.mono {
  color: #e0e0e0;
}
.status-ok {
  color: #6ee7b7;
}
.status-err {
  color: #f87171;
}
.link-admin {
  color: var(--dt-signal-orange);
  text-decoration: none;
  font-size: 0.8rem;
  white-space: nowrap;
}
.link-admin:hover {
  text-decoration: underline;
}

.pager {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  padding-top: 8px;
}

.toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--dt-bg-surface);
  border: 1px solid var(--dt-border-active);
  color: var(--dt-signal-text);
  padding: 12px 20px;
  border-radius: 8px;
  z-index: calc(var(--z-modal) - 1);
  max-width: 90vw;
  font-size: 0.9rem;
  box-shadow: 0 0 20px var(--dt-signal-glow);
}
.toast.error {
  border-color: #f87171;
}

.modal {
  position: fixed;
  inset: 0;
  z-index: var(--z-modal);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--dt-space);
}
.modal[hidden] {
  display: none !important;
}
.modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.75);
}
.modal-card {
  position: relative;
  background: var(--dt-bg-surface);
  border: 1px solid var(--dt-border);
  border-radius: var(--dt-radius);
  padding: var(--dt-space);
  max-width: 400px;
  width: 100%;
}
.modal-card-wide {
  max-width: min(520px, 92vw);
}
.modal-sync-fields {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin: 12px 0 4px;
}
.modal-sync-fields .input-group label {
  font-size: 0.8rem;
  color: var(--dt-text-secondary);
}
.sync-month-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}
@media (max-width: 480px) {
  .sync-month-row {
    grid-template-columns: 1fr;
  }
}
.modal-title {
  font-weight: 800;
  margin-bottom: 8px;
}
.modal-actions {
  display: flex;
  justify-content: flex-end;
  gap: 10px;
  margin-top: 16px;
}