/* Custom DateTime Picker Styles */
.datetime-picker-modal {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1100;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.datetime-picker-modal.show {
  opacity: 1;
}

.datetime-picker-content {
  background: var(--color-background);
  border-radius: 20px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.6);
  max-width: 420px;
  width: 95%;
  max-height: 90vh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  transform: scale(0.9);
  transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.datetime-picker-modal.show .datetime-picker-content {
  transform: scale(1);
}

.datetime-picker-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 24px;
  border-bottom: 1px solid var(--color-divider);
  background: linear-gradient(135deg, rgba(31, 163, 236, 0.08), transparent);
}

.datetime-picker-header h3 {
  margin: 0;
  font-size: 20px;
  font-weight: 600;
  color: var(--color-on-surface);
}

.datetime-picker-close {
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 8px;
  border-radius: 8px;
  color: var(--color-on-surface-variant);
  transition: all 0.2s;
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.datetime-picker-close:hover {
  background: rgba(255, 255, 255, 0.1);
  transform: rotate(90deg);
}

.datetime-picker-close svg {
  width: 20px;
  height: 20px;
}

.datetime-picker-body {
  flex: 1;
  overflow-y: auto;
  padding: 20px 24px;
}

/* Tabs */
.datetime-picker-tabs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-bottom: 20px;
}

.datetime-picker-tab {
  background: var(--color-surface-container);
  border: 2px solid var(--color-divider);
  border-radius: 12px;
  padding: 12px 16px;
  cursor: pointer;
  transition: all 0.2s;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 4px;
}

.datetime-picker-tab:hover {
  border-color: var(--color-primary);
  background: var(--color-surface);
}

.datetime-picker-tab.active {
  border-color: var(--color-primary);
  background: rgba(31, 163, 236, 0.1);
  box-shadow: 0 0 0 3px rgba(31, 163, 236, 0.1);
}

.datetime-picker-tab .tab-label {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--color-on-surface-variant);
}

.datetime-picker-tab .tab-value {
  font-size: 16px;
  font-weight: 700;
  color: var(--color-on-surface);
  font-family: 'SF Mono', Monaco, monospace;
}

/* Calendar */
.datetime-calendar-container {
  margin-bottom: 20px;
}

.calendar-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
}

.calendar-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--color-on-surface);
}

.calendar-nav {
  background: var(--color-surface-container);
  border: 1px solid var(--color-divider);
  border-radius: 8px;
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.2s;
  color: var(--color-on-surface-variant);
}

.calendar-nav:hover {
  background: var(--color-surface);
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.calendar-nav svg {
  width: 20px;
  height: 20px;
}

.calendar-weekdays {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 4px;
  margin-bottom: 8px;
}

.calendar-weekdays div {
  text-align: center;
  font-size: 11px;
  font-weight: 600;
  color: var(--color-on-surface-variant);
  padding: 8px 4px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.calendar-days {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 4px;
}

.calendar-day {
  aspect-ratio: 1;
  border: none;
  background: var(--color-surface-container);
  border-radius: 10px;
  cursor: pointer;
  font-size: 14px;
  font-weight: 500;
  color: var(--color-on-surface);
  transition: all 0.2s;
  position: relative;
}

.calendar-day:hover:not(.disabled) {
  background: var(--color-surface);
  transform: scale(1.05);
}

.calendar-day.other-month {
  color: var(--color-on-surface-variant);
  opacity: 0.3;
}

.calendar-day.today {
  background: rgba(31, 163, 236, 0.15);
  color: var(--color-primary);
  font-weight: 700;
}

.calendar-day.selected {
  background: var(--color-primary);
  color: white;
  font-weight: 700;
  box-shadow: 0 4px 12px rgba(31, 163, 236, 0.4);
}

.calendar-day.in-range:not(.selected) {
  background: rgba(31, 163, 236, 0.1);
  color: var(--color-primary);
}

.calendar-day.disabled {
  opacity: 0.3;
  cursor: not-allowed;
}

/* Time Picker */
.datetime-time-container {
  margin-bottom: 20px;
}

.time-picker {
  background: var(--color-surface-container);
  border-radius: 16px;
  padding: 16px;
}

.time-label {
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--color-on-surface-variant);
  margin-bottom: 12px;
}

.time-inputs {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
}

.time-input-group {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}

.time-btn {
  background: var(--color-surface);
  border: 1px solid var(--color-divider);
  border-radius: 8px;
  width: 40px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.2s;
  color: var(--color-on-surface-variant);
}

.time-btn:hover {
  background: var(--color-surface-variant);
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.time-btn svg {
  width: 18px;
  height: 18px;
}

.time-input {
  background: var(--color-surface);
  border: 2px solid var(--color-divider);
  border-radius: 12px;
  width: 64px;
  height: 64px;
  text-align: center;
  font-size: 28px;
  font-weight: 700;
  color: var(--color-on-surface);
  font-family: 'SF Mono', Monaco, monospace;
  transition: all 0.2s;
}

.time-input:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 4px rgba(31, 163, 236, 0.15);
}

.time-separator {
  font-size: 32px;
  font-weight: 700;
  color: var(--color-on-surface-variant);
  padding: 0 4px;
  margin-top: 24px;
}


/* Footer */
.datetime-picker-footer {
  display: flex;
  justify-content: flex-end;
  gap: 12px;
  padding: 16px 24px;
  border-top: 1px solid var(--color-divider);
  background: var(--color-surface-container);
}

.datetime-picker-footer .btn-secondary,
.datetime-picker-footer .btn-primary {
  padding: 12px 24px;
  border-radius: 10px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
  border: none;
  min-width: 100px;
}

.datetime-picker-footer .btn-secondary {
  background: transparent;
  border: 2px solid var(--color-divider);
  color: var(--color-on-surface-variant);
}

.datetime-picker-footer .btn-secondary:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: var(--color-on-surface);
  color: var(--color-on-surface);
}

.datetime-picker-footer .btn-primary {
  background: linear-gradient(135deg, var(--color-primary), #1976d2);
  color: white;
  box-shadow: 0 4px 12px rgba(31, 163, 236, 0.3);
}

.datetime-picker-footer .btn-primary:hover {
  box-shadow: 0 6px 20px rgba(31, 163, 236, 0.5);
  transform: translateY(-2px);
}

/* Mobile */
@media (max-width: 480px) {
  .datetime-picker-content {
    max-width: 100%;
    width: 100%;
    height: 100%;
    max-height: 100%;
    border-radius: 0;
  }

  .datetime-picker-body {
    padding: 12px;
  }

  .datetime-picker-tabs {
    gap: 8px;
    margin-bottom: 16px;
  }

  .datetime-picker-tab {
    padding: 10px 12px;
  }

  .datetime-picker-tab .tab-value {
    font-size: 14px;
  }

  .calendar-header {
    margin-bottom: 12px;
  }

  .calendar-title {
    font-size: 15px;
  }

  .calendar-nav {
    width: 32px;
    height: 32px;
  }

  .calendar-nav svg {
    width: 18px;
    height: 18px;
  }

  .calendar-weekdays {
    gap: 2px;
    margin-bottom: 4px;
  }

  .calendar-weekdays div {
    font-size: 10px;
    padding: 6px 2px;
  }

  .calendar-days {
    gap: 2px;
  }

  .calendar-day {
    font-size: 13px;
    border-radius: 8px;
  }

  .datetime-time-container {
    margin-bottom: 16px;
  }

  .time-picker {
    padding: 12px;
  }

  .time-input {
    width: 56px;
    height: 56px;
    font-size: 24px;
  }

  .time-separator {
    font-size: 28px;
    margin-top: 20px;
  }

  .datetime-picker-footer {
    padding: 12px;
  }
}

/* Very small screens */
@media (max-width: 360px) {
  .datetime-picker-body {
    padding: 8px;
  }

  .datetime-picker-tabs {
    gap: 6px;
    margin-bottom: 12px;
  }

  .datetime-picker-tab {
    padding: 8px 10px;
  }

  .datetime-picker-tab .tab-label {
    font-size: 10px;
  }

  .datetime-picker-tab .tab-value {
    font-size: 13px;
  }

  .calendar-header {
    margin-bottom: 8px;
  }

  .calendar-title {
    font-size: 14px;
  }

  .calendar-nav {
    width: 28px;
    height: 28px;
  }

  .calendar-nav svg {
    width: 16px;
    height: 16px;
  }

  .calendar-weekdays {
    gap: 1px;
    margin-bottom: 2px;
  }

  .calendar-weekdays div {
    font-size: 9px;
    padding: 4px 1px;
  }

  .calendar-days {
    gap: 1px;
  }

  .calendar-day {
    font-size: 12px;
    border-radius: 6px;
  }

  .time-input {
    width: 52px;
    height: 52px;
    font-size: 22px;
  }

  .time-btn {
    width: 36px;
    height: 28px;
  }

  .time-separator {
    font-size: 24px;
    margin-top: 16px;
  }

  .datetime-picker-footer {
    padding: 10px 8px;
    gap: 8px;
  }

  .datetime-picker-footer .btn-secondary,
  .datetime-picker-footer .btn-primary {
    padding: 10px 16px;
    font-size: 13px;
    min-width: 80px;
  }
}