function shareSOSQR(sosUrl, roomName) {
  document.getElementById('sos-share-modal')?.remove();

  var overlay = document.createElement('div');
  overlay.id = 'sos-share-modal';
  overlay.dataset.sosUrl   = sosUrl;
  overlay.dataset.roomName = roomName;
  overlay.style.cssText = 'position:fixed;inset:0;z-index:10001;display:flex;align-items:center;justify-content:center;background:rgba(0,0,0,0.7);padding:20px;';

  var card = document.createElement('div');
  card.style.cssText = 'background:white;border-radius:20px;padding:28px 24px;max-width:400px;width:100%;box-shadow:0 24px 64px rgba(0,0,0,0.4);';
  card.innerHTML =
    '<div style="display:flex;align-items:flex-start;justify-content:space-between;margin-bottom:20px;">' +
      '<div>' +
        '<div style="font-size:15px;font-weight:800;color:#0b1535;margin-bottom:4px;">Text Help Link</div>' +
        '<div style="font-size:12px;color:#6b7280;line-height:1.5;">Send the SOS QR link via SMS through the platform Twilio account.</div>' +
      '</div>' +
      '<button id="sos-sms-close" style="background:none;border:none;font-size:22px;cursor:pointer;color:#9ca3af;line-height:1;padding:2px;margin-left:12px;">&times;</button>' +
    '</div>' +
    '<div style="margin-bottom:16px;">' +
      '<label style="display:block;font-size:11px;font-weight:700;color:#374151;text-transform:uppercase;letter-spacing:.06em;margin-bottom:6px;">Phone Number</label>' +
      '<input id="sos-sms-phone" type="tel" placeholder="+1 (555) 000-0000"' +
        ' style="width:100%;padding:12px 14px;border:1.5px solid #e5e7eb;border-radius:10px;font-size:15px;font-family:inherit;color:#111827;outline:none;box-sizing:border-box;">' +
    '</div>' +
    '<div id="sos-sms-err" style="display:none;background:#fef2f2;color:#991b1b;border-radius:8px;padding:10px 12px;font-size:13px;font-weight:600;margin-bottom:12px;"></div>' +
    '<div id="sos-sms-ok" style="display:none;background:#f0fdf4;color:#166534;border-radius:8px;padding:10px 12px;font-size:13px;font-weight:600;margin-bottom:12px;"></div>' +
    '<div style="display:flex;gap:10px;">' +
      '<button id="sos-sms-cancel" style="flex:1;padding:12px;background:#f3f4f6;border:1.5px solid #e5e7eb;border-radius:10px;font-size:13px;font-weight:600;cursor:pointer;font-family:inherit;color:#374151;">Cancel</button>' +
      '<button id="sos-sms-btn" style="flex:2;padding:12px;background:#3b5ef6;color:white;border:none;border-radius:10px;font-size:13px;font-weight:700;cursor:pointer;font-family:inherit;">Send Text</button>' +
    '</div>';

  overlay.appendChild(card);
  document.body.appendChild(overlay);

  document.getElementById('sos-sms-close').onclick   = function() { overlay.remove(); };
  document.getElementById('sos-sms-cancel').onclick  = function() { overlay.remove(); };
  document.getElementById('sos-sms-btn').onclick     = function() { sendSOSTextLink(); };
  document.getElementById('sos-sms-phone').onkeydown = function(e) { if (e.key === 'Enter') sendSOSTextLink(); };
  document.getElementById('sos-sms-phone').onfocus   = function() { this.style.borderColor = '#3b5ef6'; };
  document.getElementById('sos-sms-phone').onblur    = function() { this.style.borderColor = '#e5e7eb'; };
  overlay.onclick = function(e) { if (e.target === overlay) overlay.remove(); };
  setTimeout(function() { var p = document.getElementById('sos-sms-phone'); if(p) p.focus(); }, 60);
}

async function sendSOSTextLink() {
  var overlay  = document.getElementById('sos-share-modal');
  var sosUrl   = overlay ? overlay.dataset.sosUrl   : '';
  var roomName = overlay ? overlay.dataset.roomName : '';
  var phoneEl  = document.getElementById('sos-sms-phone');
  var phone    = phoneEl ? phoneEl.value.trim() : '';
  var errEl    = document.getElementById('sos-sms-err');
  var okEl     = document.getElementById('sos-sms-ok');
  var btn      = document.getElementById('sos-sms-btn');
  if (!errEl || !btn) return;

  errEl.style.display = 'none';
  okEl.style.display  = 'none';

  if (!phone) { errEl.textContent = 'Please enter a phone number.'; errEl.style.display = 'block'; return; }

  btn.disabled = true;
  btn.textContent = 'Sending...';

  try {
    var res = await fetch('/api/rooms/sos-text', {
      method: 'POST',
      headers: { 'Content-Type': 'application/json', 'Authorization': 'Bearer ' + (state.token || '') },
      body: JSON.stringify({ phone: phone, sos_url: sosUrl, room_name: roomName })
    });
    var data = await res.json();
    if (!res.ok) throw new Error(data.error || 'Send failed');
    okEl.textContent = 'Text sent to ' + phone;
    okEl.style.display = 'block';
    btn.textContent = 'Sent!';
    setTimeout(function() { var m = document.getElementById('sos-share-modal'); if(m) m.remove(); }, 1800);
  } catch(e) {
    errEl.textContent = e.message;
    errEl.style.display = 'block';
    btn.disabled = false;
    btn.textContent = 'Send Text';
  }
}