function showCreateSolutionModal() {
            const addTimeCheckbox = document.getElementById('sol_add_time');
            const timeFields = document.getElementById('sol_time_fields');
            if (addTimeCheckbox && timeFields) {
                addTimeCheckbox.checked = false;
                timeFields.classList.add('d-none');
            }
            const timeDate = document.getElementById('sol_time_date');
            if (timeDate) timeDate.valueAsDate = new Date();
            const timeHours = document.getElementById('sol_time_hours');
            const timeMinutes = document.getElementById('sol_time_minutes');
            const timeTotal = document.getElementById('sol_time_total');
            if (timeHours) timeHours.value = '';
            if (timeMinutes) timeMinutes.value = '';
            if (timeTotal) timeTotal.textContent = 'Total: 0.00 timer';
            const timeDesc = document.getElementById('sol_time_desc');
            if (timeDesc) timeDesc.value = '';
            const timeInternal = document.getElementById('sol_time_internal');
            if (timeInternal) timeInternal.checked = false;
            new bootstrap.Modal(document.getElementById('createSolutionModal')).show();
        }

        function updateSolutionTimeTotal() {
            const h = parseInt(document.getElementById('sol_time_hours').value) || 0;
            const m = parseInt(document.getElementById('sol_time_minutes').value) || 0;
            const total = h + (m / 60);
            const output = document.getElementById('sol_time_total');
            if (output) output.textContent = `Total: ${total.toFixed(2)} timer`;
        }

        async function saveSolution() {
            const data = {
                sag_id: document.getElementById('sol_sag_id').value,
                title: document.getElementById('sol_title').value,
                solution_type: document.getElementById('sol_type').value,
                result: document.getElementById('sol_result').value,
                description: document.getElementById('sol_desc').value,
                created_by_user_id: 1 // TODO: Get from auth
            };
            const addTime = document.getElementById('sol_add_time')?.checked;
            const timeHours = parseInt(document.getElementById('sol_time_hours').value) || 0;
            const timeMinutes = parseInt(document.getElementById('sol_time_minutes').value) || 0;
            const timeTotal = timeHours + (timeMinutes / 60);
            
            try {
                const res = await fetch(`/api/v1/sag/${data.sag_id}/solution`, {
                    method: 'POST',
                    headers: {'Content-Type': 'application/json'},
                    body: JSON.stringify(data)
                });
                if (res.ok) {
                    if (addTime && timeTotal > 0) {
                        const solution = await res.json();
                        const timePayload = {
                            sag_id: data.sag_id,
                            solution_id: solution.id,
                            description: document.getElementById('sol_time_desc').value || data.title,
                            original_hours: timeTotal,
                            worked_date: document.getElementById('sol_time_date').value || null,
                            is_internal: document.getElementById('sol_time_internal').checked,
                            work_type: 'support'
                        };
                        const timeRes = await fetch('/api/v1/timetracking/entries/internal', {
                            method: 'POST',
                            headers: {'Content-Type': 'application/json'},
                            body: JSON.stringify(timePayload)
                        });
                        if (!timeRes.ok) {
                            alert('Løsning oprettet, men tid kunne ikke registreres');
                        }
                    }
                    window.location.reload();
                } else {
                    alert('Fejl ved oprettelse af løsning');
                }
            } catch(e) { console.error(e); alert('Fejl'); }
        }

        function showAddTimeModal() {
             // Set date to today
             document.getElementById('time_date').valueAsDate = new Date();
             
             // Reset fields
             if(document.getElementById('time_total_minutes')) {
                 document.getElementById('time_total_minutes').value = '';
                 document.getElementById('time_start_input').value = '';
                 document.getElementById('time_end_input').value = '';
             }
             document.getElementById('time_desc').value = '';
             if(document.getElementById('time_internal')) document.getElementById('time_internal').checked = false;
             if(document.getElementById('time_billing_method')) document.getElementById('time_billing_method').value = 'invoice';
             if(document.getElementById('time_work_type')) document.getElementById('time_work_type').value = 'support';
             
             new bootstrap.Modal(document.getElementById('createTimeModal')).show();
        }
        
        // Auto-calculate total hours
        /* removed updateTimeTotal */
        
        // Add listeners safely
        document.addEventListener('DOMContentLoaded', () => {
            const hInput = document.getElementById('time_hours_input');
            const mInput = document.getElementById('time_minutes_input');
            if(hInput) hInput.addEventListener('input', updateTimeTotal);
            if(mInput) mInput.addEventListener('input', updateTimeTotal);
            const solAddTime = document.getElementById('sol_add_time');
            const solFields = document.getElementById('sol_time_fields');
            if (solAddTime && solFields) {
                solAddTime.addEventListener('change', () => {
                    solFields.classList.toggle('d-none', !solAddTime.checked);
                });
            }
            const solHours = document.getElementById('sol_time_hours');
            const solMinutes = document.getElementById('sol_time_minutes');
            if (solHours) solHours.addEventListener('input', updateSolutionTimeTotal);
            if (solMinutes) solMinutes.addEventListener('input', updateSolutionTimeTotal);
        });

                function bindTimeModalCalculations() {
            const startIn = document.getElementById('time_start_input');
            const endIn = document.getElementById('time_end_input');
            const minIn = document.getElementById('time_total_minutes');
            
            if (!startIn || !endIn || !minIn) return;

            const parseTime = (val) => {
                if (!val) return null;
                const [h,m] = val.split(':').map(Number);
                return (h * 60) + m;
            };

            const toTimeStr = (totalMins) => {
                const h = Math.floor(totalMins / 60) % 24;
                const m = totalMins % 60;
                return `${h.toString().padStart(2,'0')}:${m.toString().padStart(2,'0')}`;
            };

            const recalculate = (trigger) => {
                const s = parseTime(startIn.value);
                const e = parseTime(endIn.value);
                const dur = parseInt(minIn.value);

                if (trigger === 'start' || trigger === 'end') {
                    if (s !== null && e !== null) {
                        let diff = e - s;
                        if (diff < 0) diff += 24*60;
                        minIn.value = diff;
                    } else if (s !== null && !isNaN(dur) && dur > 0 && !endIn.value) {
                        endIn.value = toTimeStr(s + dur);
                    } else if (e !== null && !isNaN(dur) && dur > 0 && !startIn.value) {
                        let base = e - dur;
                        while (base < 0) base += 24*60;
                        startIn.value = toTimeStr(base);
                    }
                } else if (trigger === 'min') {
                    if (s !== null && !isNaN(dur) && dur > 0) {
                        endIn.value = toTimeStr(s + dur);
                    } else if (e !== null && !isNaN(dur) && dur > 0 && !startIn.value) {
                        let base = e - dur;
                        while(base < 0) base+=24*60;
                        startIn.value = toTimeStr(base);
                    }
                }
            };

            startIn.addEventListener('change', () => recalculate('start'));
            endIn.addEventListener('change', () => recalculate('end'));
            minIn.addEventListener('input', () => recalculate('min'));
        }

        document.addEventListener('DOMContentLoaded', bindTimeModalCalculations);

        async function saveTime() {
             const mInput = document.getElementById('time_total_minutes');
             const minVal = parseInt(mInput ? mInput.value : 0);
             if (!minVal || minVal <= 0) {
                 alert('Indtast en gyldig varighed (minutter).');
                 return;
             }
             const totalHours = minVal / 60;
             const dateVal = document.getElementById('time_date').value;
             // extract optional start/end limits
             const tStart = document.getElementById('time_start_input')?.value;
             const tEnd = document.getElementById('time_end_input')?.value;
            
             let startObj = null;
             let endObj = null;
             if (dateVal && tStart) {
                 try {
                     const l = new Date(`${dateVal}T${tStart}:00`);
                     startObj = l.toISOString();
                 } catch(e){}
             }
             if (dateVal && tEnd) {
                 try {
                     const l = new Date(`${dateVal}T${tEnd}:00`);
                     if (startObj && new Date(startObj) > l) {
                         l.setDate(l.getDate() + 1);
                     }
                     endObj = l.toISOString();
                 } catch(e){}
             }
             
             const sagId = document.getElementById('time_sag_id').value;
             const payload = {
                 sag_id: parseInt(sagId),
                 // Note: saveTime modal expects 'timer' as totalHours currently, let's keep compatibility:
                 timer: totalHours,
                 faktisk_tid_min: minVal,
                 worked_date: dateVal,
                 start_tid: startObj,
                 slut_tid: endObj,
                 description: document.getElementById('time_desc').value,
                 work_type: document.getElementById('time_work_type').value,
                 billing_method: document.getElementById('time_billing_method').value
             };
             
             try {
                 const res = await fetch(`/api/v1/cases/${sagId}/time`, {
                     method: 'POST',
                     headers: {'Content-Type':'application/json'},
                     body: JSON.stringify(payload)
                 });
                 if(res.ok) {
                     window.location.reload();
                 } else {
                     alert("Fejl ved registrering af tid");
                 }
             } catch(err) {
                 console.error(err);
                 alert("Forbindelsesfejl");
             }
        }