.simple-datepicker-popup {
    position: absolute;
    z-index: 6000;
    width: 280px;
    padding: 14px;
    border: 1px solid #dbe7f1;
    border-radius: 20px;
    background: #ffffff;
    box-shadow: 0 24px 48px rgba(15, 23, 42, 0.16);
}

.simple-datepicker-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 12px;
    gap: 0.5rem;
}

.simple-datepicker-title {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    flex: 1;
}

.simple-datepicker-month,
.simple-datepicker-year {
    height: 36px;
    border: 1px solid #dbe7f1;
    border-radius: 12px;
    background: #f8fbff;
    color: #0f172a;
    font-size: 0.86rem;
    font-weight: 600;
    padding: 0 10px;
    outline: none;
}

.simple-datepicker-month {
    min-width: 120px;
}

.simple-datepicker-year {
    min-width: 84px;
}

.simple-datepicker-month:focus,
.simple-datepicker-year:focus {
    border-color: #93c5fd;
    box-shadow: 0 0 0 3px rgba(191, 219, 254, 0.35);
}

.simple-datepicker-nav,
.simple-datepicker-action {
    border: 1px solid #dbe7f1;
    background: #f8fbff;
    color: #1e3a8a;
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.simple-datepicker-nav {
    width: 34px;
    height: 34px;
    font-size: 1.1rem;
    line-height: 1;
}

.simple-datepicker-nav:hover,
.simple-datepicker-action:hover {
    background: #e0f2fe;
    border-color: #93c5fd;
}

.simple-datepicker-weekdays,
.simple-datepicker-grid {
    display: grid;
    grid-template-columns: repeat(7, minmax(0, 1fr));
    gap: 6px;
}

.simple-datepicker-weekdays {
    margin-bottom: 8px;
}

.simple-datepicker-weekday {
    text-align: center;
    font-size: 0.74rem;
    font-weight: 700;
    color: #64748b;
    text-transform: uppercase;
}

.simple-datepicker-day {
    height: 34px;
    border: none;
    border-radius: 10px;
    background: #f8fafc;
    color: #0f172a;
    font-size: 0.88rem;
    cursor: pointer;
    transition: all 0.2s ease;
}

.simple-datepicker-day:hover {
    background: #dbeafe;
    color: #1d4ed8;
}

.simple-datepicker-day.selected {
    background: #2563eb;
    color: #ffffff;
}

.simple-datepicker-day.today {
    box-shadow: inset 0 0 0 1px #60a5fa;
}

.simple-datepicker-day.muted {
    color: #94a3b8;
    background: #f8fafc;
}

.simple-datepicker-day.disabled {
    opacity: 0.45;
    cursor: not-allowed;
}

.simple-datepicker-day.disabled:hover {
    background: #f8fafc;
    color: #0f172a;
}

.simple-datepicker-footer {
    display: flex;
    justify-content: space-between;
    gap: 10px;
    margin-top: 14px;
}

.simple-datepicker-action {
    padding: 8px 12px;
    font-size: 0.82rem;
    font-weight: 600;
}