.export-date-range-dialog-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.35);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
  z-index: 2400;
}

.export-date-range-dialog {
  width: min(480px, calc(100vw - 32px));
  max-height: calc(100vh - 64px);
  overflow-y: auto;
  border-radius: 16px;
  border: 1px solid var(--border-color);
  background: var(--bg-secondary-solid, var(--bg-primary));
  padding: 14px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  box-shadow: 0 22px 48px rgba(0, 0, 0, 0.16);
}

.export-date-range-dialog-header {
  display: flex;
  align-items: center;
  justify-content: space-between;

  h4 {
    margin: 0;
    font-size: 14px;
    color: var(--text-primary);
  }
}

.export-date-range-dialog-close-btn {
  border: 1px solid var(--border-color);
  background: var(--bg-secondary);
  border-radius: 8px;
  width: 30px;
  height: 30px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: var(--text-secondary);
}

.export-date-range-preset-list {
  display: flex;
  flex-wrap: nowrap;
  gap: 4px;
  overflow-x: auto;
  padding-bottom: 2px;

  &::-webkit-scrollbar {
    height: 4px;
  }
}

.export-date-range-preset-item {
  flex: 0 0 auto;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  background: var(--bg-secondary);
  color: var(--text-primary);
  min-height: 30px;
  padding: 0 8px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 4px;
  font-size: 11px;
  cursor: pointer;
  white-space: nowrap;

  &.active {
    border-color: var(--primary);
    background: rgba(var(--primary-rgb), 0.08);
    color: var(--primary);
  }
}

.export-date-range-mode-banner {
  border-radius: 10px;
  padding: 7px 10px;
  font-size: 11px;
  line-height: 1.4;
  border: 1px solid var(--border-color);
  background: var(--bg-secondary);
  color: var(--text-secondary);

  &.range {
    border-color: rgba(var(--primary-rgb), 0.4);
    background: rgba(var(--primary-rgb), 0.1);
    color: var(--primary);
  }
}

.export-date-range-boundary-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}

.export-date-range-boundary-card {
  border: 1px solid var(--border-color);
  border-radius: 10px;
  background: var(--bg-secondary);
  padding: 8px;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 6px;
  cursor: pointer;
  transition: border-color 0.15s ease, background 0.15s ease, box-shadow 0.15s ease;

  &.active {
    border-color: var(--primary);
    background: rgba(var(--primary-rgb), 0.08);
    box-shadow: 0 0 0 1px rgba(var(--primary-rgb), 0.18);
  }

  .boundary-label {
    font-size: 11px;
    color: var(--text-secondary);
  }
}

.export-date-range-selection-hint {
  font-size: 11px;
  color: var(--text-secondary);
  padding: 0 2px;
}

.export-date-range-calendar-panel {
  border: 1px solid var(--border-color);
  border-radius: 12px;
  background: linear-gradient(180deg, rgba(var(--primary-rgb), 0.04), transparent 28%), var(--bg-secondary);
  padding: 10px;

  &.single {
    width: 100%;
  }
}

.export-date-range-calendar-panel-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 8px;
}

.export-date-range-calendar-date-label {
  display: flex;
  flex-direction: column;
  gap: 3px;

  span {
    font-size: 11px;
    color: var(--text-secondary);
  }

  strong {
    font-size: 13px;
    color: var(--text-primary);
  }
}

.export-date-range-date-input {
  width: 100%;
  min-width: 0;
  border-radius: 8px;
  border: 1px solid var(--border-color);
  background: var(--bg-primary);
  color: var(--text-primary);
  height: 30px;
  padding: 0 9px;
  font-size: 12px;

  &:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 1px rgba(var(--primary-rgb), 0.18);
  }

  &.invalid {
    border-color: #e84d4d;
    box-shadow: 0 0 0 1px rgba(232, 77, 77, 0.2);
  }
}

.export-date-range-calendar-nav {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 11px;
  color: var(--text-primary);

  button {
    width: 28px;
    height: 28px;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    background: var(--bg-primary);
    color: var(--text-primary);
    cursor: pointer;
    padding: 0;
    line-height: 1;
    display: inline-flex;
    align-items: center;
    justify-content: center;

    &:disabled {
      cursor: not-allowed;
      opacity: 0.45;
    }
  }
}

.export-date-range-calendar-weekdays {
  margin-top: 10px;
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 4px;

  span {
    text-align: center;
    font-size: 10px;
    color: var(--text-tertiary);
  }
}

.export-date-range-calendar-days {
  margin-top: 6px;
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 4px;
}

.export-date-range-calendar-day {
  border: 1px solid transparent;
  border-radius: 10px;
  min-height: 34px;
  background: var(--bg-primary);
  color: var(--text-primary);
  font-size: 12px;
  cursor: pointer;
  padding: 0;
  transition: border-color 0.15s ease, background 0.15s ease, color 0.15s ease, transform 0.15s ease;

  &:hover {
    border-color: rgba(var(--primary-rgb), 0.28);
    transform: translateY(-1px);
  }

  &:disabled:hover {
    border-color: transparent;
    transform: none;
  }

  &.outside {
    color: var(--text-quaternary);
    opacity: 0.72;
  }

  &.disabled {
    cursor: not-allowed;
    opacity: 0.35;
    transform: none;
    border-color: transparent;
  }

  &.in-range {
    background: rgba(var(--primary-rgb), 0.1);
    color: var(--primary);
  }

  &.range-start,
  &.range-end {
    border-color: var(--primary);
    background: var(--primary);
    color: #fff;
    font-weight: 600;
    opacity: 1;
  }

  &.active-boundary {
    box-shadow: 0 0 0 2px rgba(var(--primary-rgb), 0.22);
  }
}

.export-date-range-dialog-actions {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
}

.export-date-range-dialog-btn {
  border-radius: 8px;
  padding: 7px 12px;
  font-size: 12px;
  font-weight: 600;
  border: 1px solid var(--border-color);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  cursor: pointer;

  &.primary {
    border-color: var(--primary);
    background: var(--primary);
    color: #fff;

    &:hover {
      background: var(--primary-hover);
    }
  }

  &.secondary {
    background: var(--bg-secondary);
    color: var(--text-primary);

    &:hover {
      border-color: var(--primary);
      color: var(--primary);
    }
  }
}

@media (max-width: 640px) {
  .export-date-range-boundary-row {
    grid-template-columns: 1fr;
  }
}