diff --git a/src/app/admin/rentals/[id]/page.tsx b/src/app/admin/rentals/[id]/page.tsx
index 550d9e6..bf66288 100644
--- a/src/app/admin/rentals/[id]/page.tsx
+++ b/src/app/admin/rentals/[id]/page.tsx
@@ -289,6 +289,13 @@ export default function RentalDetailPage() {
   const [lockReason, setLockReason] = useState('');
   const [rejectNote, setRejectNote] = useState('');
   const [showRejectModal, setShowRejectModal] = useState(false);
+  const [showDamageModal, setShowDamageModal] = useState(false);
+  const [showSmsModal, setShowSmsModal] = useState(false);
+  const [damageDesc, setDamageDesc] = useState('');
+  const [damageSeverity, setDamageSeverity] = useState<'minor' | 'moderate' | 'severe'>('minor');
+  const [smsText, setSmsText] = useState('');
+  const [damages, setDamages] = useState(mockDamageHistory);
+  const [documents, setDocuments] = useState(mockDocuments);
 
   const [acceptPermission, setAcceptPermission] = useState(false);
   const [rejectPermission, setRejectPermission] = useState(false);
@@ -447,6 +454,21 @@ export default function RentalDetailPage() {
     setNewNote('');
   };
 
+  const handleReportDamage = () => {
+    if (!damageDesc.trim()) return;
+    setDamages(prev => [...prev, { id: `DMG-${Date.now()}`, date: new Date().toISOString().split('T')[0], description: damageDesc, severity: damageSeverity, status: 'reported' }]);
+    setDamageDesc('');
+    setDamageSeverity('minor');
+    setShowDamageModal(false);
+  };
+
+  const handleSendSms = () => {
+    if (!smsText.trim()) return;
+    alert(`SMS sent to ${rental.userPhone}: ${smsText}`);
+    setSmsText('');
+    setShowSmsModal(false);
+  };
+
   const statusBadge = getStatusBadge(rental.status);
   const typeBadge = getTypeBadge(rental.type);
   const paymentBadge = getPaymentStatusBadge(rental.paymentStatus);
@@ -601,6 +623,9 @@ export default function RentalDetailPage() {
                     <a href={`sms:${rental.userPhone}`} className="flex-1 py-1.5 bg-blue-500 text-white rounded-lg text-xs text-center hover:bg-blue-600 flex items-center justify-center gap-1">
                       <MessageCircle className="w-3 h-3" /> SMS
                     </a>
+                    <button onClick={() => setShowSmsModal(true)} className="flex-1 py-1.5 bg-indigo-500 text-white rounded-lg text-xs text-center hover:bg-indigo-600 flex items-center justify-center gap-1">
+                      <MessageSquare className="w-3 h-3" /> In-App SMS
+                    </button>
                   </div>
                 </div>
               </div>
@@ -783,12 +808,12 @@ export default function RentalDetailPage() {
                 <h3 className="font-semibold text-slate-700 flex items-center gap-2">
                   <AlertTriangle className="w-5 h-5 text-red-500" /> Damage History
                 </h3>
-                <button className="px-3 py-1.5 bg-red-500 text-white rounded-lg text-sm hover:bg-red-600 flex items-center gap-2">
+                <button onClick={() => setShowDamageModal(true)} className="px-3 py-1.5 bg-red-500 text-white rounded-lg text-sm hover:bg-red-600 flex items-center gap-2">
                   <Plus className="w-4 h-4" /> Report Damage
                 </button>
               </div>
               <div className="space-y-2">
-                {mockDamageHistory.map(damage => (
+                {damages.map(damage => (
                   <div key={damage.id} className="p-3 bg-slate-50 rounded-lg flex items-center justify-between">
                     <div>
                       <p className="text-sm font-medium text-slate-700">{damage.description}</p>
@@ -830,9 +855,17 @@ export default function RentalDetailPage() {
                         <p className="text-xs text-slate-500">{doc.uploadedAt}</p>
                       </div>
                     </div>
-                    <button className="px-3 py-1.5 text-blue-600 hover:bg-blue-50 rounded-lg text-sm flex items-center gap-1">
-                      <Download className="w-4 h-4" /> View
-                    </button>
+                    <button onClick={() => {
+                    const link = document.createElement('a');
+                    link.href = '#';
+                    link.download = doc.name;
+                    alert(`Downloading: ${doc.name}`);
+                  }} className="px-3 py-1.5 text-blue-600 hover:bg-blue-50 rounded-lg text-sm flex items-center gap-1">
+                    <Download className="w-4 h-4" /> Download
+                  </button>
+                  <button onClick={() => alert(`Viewing: ${doc.name}`)} className="px-3 py-1.5 text-slate-600 hover:bg-slate-100 rounded-lg text-sm flex items-center gap-1">
+                    <FileText className="w-4 h-4" /> View
+                  </button>
                   </div>
                 ))}
               </div>
@@ -990,6 +1023,87 @@ export default function RentalDetailPage() {
           </div>
         </div>
       )}
+
+      {showDamageModal && (
+        <div className="fixed inset-0 bg-black/50 flex items-center justify-center z-50 p-4">
+          <div className="bg-white rounded-xl shadow-xl w-full max-w-md">
+            <div className="p-4 border-b border-slate-100 flex justify-between items-center">
+              <h3 className="font-semibold text-slate-800 flex items-center gap-2">
+                <AlertTriangle className="w-5 h-5 text-red-500" /> Report Damage
+              </h3>
+              <button onClick={() => setShowDamageModal(false)} className="text-slate-400 hover:text-slate-600 text-2xl">&times;</button>
+            </div>
+            <div className="p-4 space-y-4">
+              <div>
+                <label className="text-sm text-slate-600 block mb-1">Description</label>
+                <textarea
+                  value={damageDesc}
+                  onChange={(e) => setDamageDesc(e.target.value)}
+                  className="w-full px-3 py-2 border border-slate-200 rounded-lg text-sm"
+                  rows={3}
+                  placeholder="Describe the damage..."
+                />
+              </div>
+              <div>
+                <label className="text-sm text-slate-600 block mb-1">Severity</label>
+                <div className="flex gap-2">
+                  {(['minor', 'moderate', 'severe'] as const).map(sev => (
+                    <button
+                      key={sev}
+                      onClick={() => setDamageSeverity(sev)}
+                      className={`flex-1 py-2 rounded-lg text-sm border ${damageSeverity === sev
+                        ? sev === 'minor' ? 'bg-yellow-100 border-yellow-300 text-yellow-700'
+                          : sev === 'moderate' ? 'bg-orange-100 border-orange-300 text-orange-700'
+                            : 'bg-red-100 border-red-300 text-red-700'
+                        : 'border-slate-200 text-slate-600'
+                        }`}
+                    >
+                      {sev.charAt(0).toUpperCase() + sev.slice(1)}
+                    </button>
+                  ))}
+                </div>
+              </div>
+            </div>
+            <div className="p-4 border-t border-slate-100 flex justify-end gap-2">
+              <button onClick={() => setShowDamageModal(false)} className="px-4 py-2 border border-slate-200 text-slate-600 rounded-lg">Cancel</button>
+              <button onClick={handleReportDamage} disabled={!damageDesc.trim()} className="px-4 py-2 bg-red-600 text-white rounded-lg disabled:opacity-50">Report Damage</button>
+            </div>
+          </div>
+        </div>
+      )}
+
+      {showSmsModal && (
+        <div className="fixed inset-0 bg-black/50 flex items-center justify-center z-50 p-4">
+          <div className="bg-white rounded-xl shadow-xl w-full max-w-md">
+            <div className="p-4 border-b border-slate-100 flex justify-between items-center">
+              <h3 className="font-semibold text-slate-800 flex items-center gap-2">
+                <MessageCircle className="w-5 h-5 text-blue-500" /> Send SMS
+              </h3>
+              <button onClick={() => setShowSmsModal(false)} className="text-slate-400 hover:text-slate-600 text-2xl">&times;</button>
+            </div>
+            <div className="p-4 space-y-3">
+              <div className="bg-slate-50 p-3 rounded-lg text-sm">
+                <p className="text-slate-500">To:</p>
+                <p className="font-medium text-slate-800">{rental.userName} ({rental.userPhone})</p>
+              </div>
+              <div>
+                <label className="text-sm text-slate-600 block mb-1">Message</label>
+                <textarea
+                  value={smsText}
+                  onChange={(e) => setSmsText(e.target.value)}
+                  className="w-full px-3 py-2 border border-slate-200 rounded-lg text-sm"
+                  rows={4}
+                  placeholder="Type your message..."
+                />
+              </div>
+            </div>
+            <div className="p-4 border-t border-slate-100 flex justify-end gap-2">
+              <button onClick={() => setShowSmsModal(false)} className="px-4 py-2 border border-slate-200 text-slate-600 rounded-lg">Cancel</button>
+              <button onClick={handleSendSms} disabled={!smsText.trim()} className="px-4 py-2 bg-blue-600 text-white rounded-lg disabled:opacity-50">Send SMS</button>
+            </div>
+          </div>
+        </div>
+      )}
     </div>
   );
 }
\ No newline at end of file