.custom-calendar-picker {
    position: fixed;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    padding: var(--space-5);
    z-index: 2000;
    width: min(340px, calc(100vw - 1rem));
    user-select: none;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    animation: calendarShootUp 0.2s ease;
    margin-top: var(--space-2);
}

@media (max-width: 767px) {
    .custom-calendar-picker {
        padding: 1rem;
        width: min(340px, calc(100vw - 0.75rem));
    }

    .calendar-current-title {
        font-size: 0.92rem;
        padding: 0.45rem 0.75rem;
        gap: 0.5rem;
    }

    .calendar-month-item,
    .calendar-year-item {
        padding: 0.95rem 0.4rem;
        font-size: 0.82rem;
    }

    .calendar-day {
        font-size: 0.82rem;
    }

    .calendar-footer {
        flex-wrap: wrap;
        justify-content: stretch;
    }

    .calendar-footer .btn,
    .calendar-footer button {
        flex: 1 1 100%;
    }
}

@keyframes calendarShootUp {
    from {
        opacity: 0;
        transform: translateY(20px) scale(0.95);
    }

    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

[data-theme="dark"] .custom-calendar-picker {
    background: rgba(22, 27, 34, 0.75);
    border-color: rgba(255, 255, 255, 0.1);
    box-shadow: 0 20px 48px rgba(0, 0, 0, 0.6);
}

.calendar-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1.25rem;
}

/* Hide native picker indicator */
input::-webkit-calendar-picker-indicator {
    display: none !important;
    -webkit-appearance: none;
    appearance: none;
}

input[type="date"]::-webkit-inner-spin-button,
input[type="datetime-local"]::-webkit-inner-spin-button {
    display: none;
    -webkit-appearance: none;
}

.calendar-current-title {
    font-weight: 600;
    font-size: var(--type-md);
    color: var(--text-primary);
    cursor: pointer;
    padding: var(--space-1) var(--space-3);
    border-radius: var(--btn-radius);
    transition: background var(--transition-fast), color var(--transition-fast);
    display: flex;
    align-items: center;
    gap: var(--space-2);
    background: transparent;
}

.calendar-current-title:hover {
    background: var(--bg-hover);
    color: var(--color-primary);
}


.calendar-current-title::after {
    content: '\f107';
    font-family: 'Font Awesome 6 Free';
    font-weight: 900;
    font-size: 0.8em;
    opacity: 0.5;
    transition: transform 0.2s ease;
}

.month-view .calendar-current-title::after,
.year-view .calendar-current-title::after {
    transform: rotate(180deg);
}

.calendar-nav-btn {
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    padding: var(--space-1);
    border-radius: var(--btn-radius);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background var(--transition-fast), color var(--transition-fast);
}

.calendar-nav-btn:hover {
    background: var(--bg-hover);
    color: var(--color-primary);
}

.calendar-grid,
.calendar-months-grid,
.calendar-years-grid {
    display: grid;
    gap: 4px;
    animation: viewFadeIn 0.3s ease;
}

@keyframes viewFadeIn {
    from {
        opacity: 0;
        transform: scale(0.95);
    }

    to {
        opacity: 1;
        transform: scale(1);
    }
}

.calendar-grid {
    grid-template-columns: repeat(7, 1fr);
}

.calendar-months-grid,
.calendar-years-grid {
    grid-template-columns: repeat(3, 1fr);
    padding: 0.5rem 0;
}

.calendar-month-item,
.calendar-year-item {
    padding: 1.25rem 0.5rem;
    text-align: center;
    font-size: 0.875rem;
    font-weight: 600;
    cursor: pointer;
    border-radius: var(--radius-md);
    transition: all 0.2s ease;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    justify-content: center;
}

.calendar-month-item:hover,
.calendar-year-item:hover {
    background: var(--color-primary-bg);
    color: var(--color-primary);
}

.calendar-month-item.selected,
.calendar-year-item.selected {
    background: var(--color-primary);
    color: white !important;
}

.calendar-weekday {
    text-align: center;
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--text-muted);
    padding: 0.5rem 0;
    text-transform: uppercase;
}

.calendar-day {
    aspect-ratio: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    border-radius: var(--radius-md);
    font-size: 0.875rem;
    transition: all 0.2s ease;
    color: var(--text-primary);
}


.calendar-day:hover:not(.empty) {
    background: var(--bg-tertiary);
}

.calendar-day.today {
    color: var(--color-primary);
    font-weight: 700;
    background: var(--color-primary-bg);
}

.calendar-day.selected {
    background: var(--color-primary) !important;
    color: white !important;
}

.calendar-day.other-month {
    color: var(--text-muted);
    opacity: 0.5;
}

.calendar-day.empty {
    cursor: default;
}

/* Time Picker Section */
.calendar-time-picker {
    margin-top: 1.25rem;
    padding-top: 1.25rem;
    border-top: 1px solid var(--border-color-light);
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.time-picker-label {
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
}

.time-inputs {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.25rem 0;
}

.time-input-group {
    display: flex;
    align-items: center;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 0.4rem 0.5rem;
    flex: 1;
    transition: all 0.2s ease;
}

.time-input-group:focus-within {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 2px var(--color-primary-bg);
}

.time-input-group input {
    background: none;
    border: none;
    width: 100%;
    text-align: center;
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--text-primary);
    padding: 0;
}

.time-input-group input:focus {
    outline: none;
}

.time-separator {
    font-weight: 800;
    color: var(--text-muted);
    font-size: 1.25rem;
}

.ampm-toggle {
    display: flex;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 3px;
    gap: 2px;
}

.ampm-btn {
    padding: 0.5rem 0.8rem;
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 800;
    cursor: pointer;
    transition: all 0.2s ease;
    color: var(--text-secondary);
    border: none;
    background: none;
}


.ampm-btn.active {
    background: var(--bg-secondary);
    color: var(--color-primary);
    box-shadow: var(--shadow-xs);
}

.calendar-footer {
    margin-top: 1.25rem;
    display: flex;
    justify-content: flex-end;
    gap: 0.75rem;
}

/* Modal style trigger */
.calendar-input-wrapper {
    position: relative;
    display: flex;
    align-items: center;
}

.calendar-input-wrapper input {
    padding-right: 2.5rem !important;
    cursor: pointer;
}

.calendar-icon-trigger {
    position: absolute;
    right: 12px;
    color: var(--text-muted);
    cursor: pointer;
    pointer-events: none;
    transition: var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
}

.calendar-icon-trigger.active {
    color: var(--color-primary);
}

.calendar-input-wrapper:focus-within .calendar-icon-trigger {
    color: var(--color-primary);
}

/* Dark mode adjustments */
[data-theme="dark"] .custom-calendar-picker {
    background: var(--bg-secondary);
    border-color: var(--border-color);
    box-shadow: var(--shadow-xl);
}

.calendar-day:not(.empty):hover {
    background: var(--color-primary-bg);
}

.calendar-day.selected {
    background: var(--color-primary) !important;
    color: white !important;
}

.calendar-nav-btn:active {
    transform: scale(0.95);
}

.calendar-apply {
    box-shadow: 0 4px 12px var(--color-primary-bg);
}

/* Scrollbar for time picker if needed */
.calendar-time-picker input::-webkit-outer-spin-button,
.calendar-time-picker input::-webkit-inner-spin-button {
    -webkit-appearance: none;
    appearance: none;
    margin: 0;
}

.calendar-time-picker input[type=number] {
    -moz-appearance: textfield;
    appearance: textfield;
}