diff --git a/favicon.ico b/favicon.ico
new file mode 100644
index 0000000..576c508
Binary files /dev/null and b/favicon.ico differ
diff --git a/index.html b/index.html
index 0248648..b58ea21 100644
--- a/index.html
+++ b/index.html
@@ -36,6 +36,7 @@
             background-size: 400% 400%;
             animation: gradientAnimation 15s ease infinite;
             z-index: -2;
+            will-change: background-position;
         }
 
         @keyframes gradientAnimation {
@@ -62,14 +63,10 @@
             width: 100px;
             height: 100px;
             margin: 0 auto 15px;
-            background-image: url('fotos/logo.png');
-            background-size: 80%;
-            background-position: center;
-            background-repeat: no-repeat;
+            background: url('fotos/logo.png') center/80% no-repeat rgba(255, 255, 255, 0.95);
             border-radius: 50%;
             border: 3px solid rgba(255, 255, 255, 0.3);
             box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
-            background-color: rgba(255, 255, 255, 0.95);
         }
 
         .header {
@@ -92,19 +89,25 @@
             text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.5);
         }
 
-        /* Botão Salvar na Agenda */
-        .save-contact {
+        /* Botões principais */
+        .save-contact,
+        .pix-button {
             display: inline-block;
             padding: 12px 30px;
-            background: linear-gradient(135deg, #20337b, #2d4a9e);
             color: white;
             text-decoration: none;
             border-radius: 50px;
             font-size: 0.95em;
             font-weight: bold;
-            margin-bottom: 25px;
             transition: all 0.3s ease;
             box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
+            cursor: pointer;
+            border: none;
+        }
+
+        .save-contact {
+            background: linear-gradient(135deg, #20337b, #2d4a9e);
+            margin-bottom: 25px;
         }
 
         .save-contact:hover {
@@ -113,7 +116,6 @@
             background: linear-gradient(135deg, #2d4a9e, #20337b);
         }
 
-        /* Container de ícones */
         .icons-row {
             display: flex;
             justify-content: center;
@@ -128,7 +130,7 @@
             align-items: center;
             text-decoration: none;
             color: white;
-            transition: all 0.3s ease;
+            transition: transform 0.3s ease;
         }
 
         .icon-item:hover {
@@ -214,7 +216,6 @@
             transform: translateY(-1px) scale(0.98);
         }
 
-        /* Modal PIX */
         .modal {
             display: none;
             position: fixed;
@@ -252,6 +253,7 @@
             box-shadow: 0 10px 40px rgba(0, 0, 0, 0.5);
             transform: translateY(30px) scale(0.9);
             opacity: 0;
+            will-change: transform, opacity;
         }
 
         .modal.active .modal-content {
@@ -385,6 +387,7 @@
             transition: all 0.2s ease;
             border: 2px solid transparent;
             position: relative;
+            will-change: transform, opacity;
         }
 
         .pix-code-area::before {
@@ -453,7 +456,6 @@
             }
         }
 
-        /* Ícones pequenos */
         .small-icons {
             display: flex;
             justify-content: center;
@@ -488,7 +490,6 @@
             fill: white;
         }
 
-        /* Responsividade */
         @media (max-width: 600px) {
             .header h1 {
                 font-size: 1.5em;
@@ -631,129 +632,89 @@
     </div>
 
     <script>
-        function openPixModal() {
-            const modal = document.getElementById('pixModal');
-            modal.classList.add('active');
-            setTimeout(() => {
-                document.getElementById('pixValue').focus();
-            }, 100);
-        }
+        // Cache de elementos DOM para melhor performance
+        const pixModal = document.getElementById('pixModal');
+        const pixValue = document.getElementById('pixValue');
+        const pixCodeArea = document.getElementById('pixCodeArea');
+        const copyNotification = document.getElementById('copyNotification');
+        const modalContent = pixModal.querySelector('.modal-content');
 
-        function closePixModal() {
-            const modal = document.getElementById('pixModal');
-            const modalContent = modal.querySelector('.modal-content');
-            
-            // Animação de saída
+        const openPixModal = () => {
+            pixModal.classList.add('active');
+            setTimeout(() => pixValue.focus(), 100);
+        };
+
+        const closePixModal = () => {
             modalContent.style.animation = 'slideDownScale 0.3s ease forwards';
-            modal.style.animation = 'fadeOut 0.3s ease forwards';
+            pixModal.style.animation = 'fadeOut 0.3s ease forwards';
             
             setTimeout(() => {
-                modal.classList.remove('active');
-                modal.style.animation = '';
+                pixModal.classList.remove('active');
+                pixModal.style.animation = '';
                 modalContent.style.animation = '';
-                document.getElementById('pixValue').value = '';
-                document.getElementById('pixCodeArea').classList.remove('active');
-                document.getElementById('copyNotification').classList.remove('active');
+                pixValue.value = '';
+                pixCodeArea.classList.remove('active');
+                copyNotification.classList.remove('active');
             }, 300);
-        }
+        };
 
-        function generatePix() {
-            const value = parseFloat(document.getElementById('pixValue').value);
+        const generatePix = () => {
+            const value = parseFloat(pixValue.value);
             
             if (!value || value <= 0) {
                 alert('Por favor, digite um valor válido');
                 return;
             }
 
-            // Gera código PIX EMV (padrão brasileiro)
-            const pixKey = 'financeiro@martinsevieira.adv.br';
-            const merchantName = 'MARTINS E VIEIRA';
-            const city = 'PALMAS';
-            const txid = 'PAGAMENTO' + Date.now().toString().slice(-10);
+            const pixCode = buildPixCode(
+                'financeiro@martinsevieira.adv.br',
+                'MARTINS E VIEIRA',
+                'PALMAS',
+                value.toFixed(2),
+                'PAGAMENTO' + Date.now().toString().slice(-10)
+            );
             
-            // Formata o valor com 2 casas decimais
-            const formattedValue = value.toFixed(2);
-            
-            // Constrói o código PIX Copia e Cola (EMV)
-            const pixCode = buildPixCode(pixKey, merchantName, city, formattedValue, txid);
-            
-            // Exibe o código
-            const pixCodeArea = document.getElementById('pixCodeArea');
             pixCodeArea.textContent = pixCode;
             pixCodeArea.classList.add('active');
-            
-            // Adiciona evento de clique para copiar
-            pixCodeArea.onclick = function() {
-                copyToClipboard(pixCode);
-            };
-            
-            // Copia automaticamente na primeira vez
+            pixCodeArea.onclick = () => copyToClipboard(pixCode);
             copyToClipboard(pixCode);
-        }
+        };
 
-        function buildPixCode(pixKey, merchantName, city, value, txid) {
-            // Função auxiliar para criar campo EMV
-            function emvField(id, value) {
-                const length = value.length.toString().padStart(2, '0');
-                return id + length + value;
-            }
-            
-            // Monta a chave PIX
+        const buildPixCode = (pixKey, merchantName, city, value, txid) => {
+            const emvField = (id, value) => id + value.length.toString().padStart(2, '0') + value;
             const merchantAccountInfo = emvField('00', 'BR.GOV.BCB.PIX') + emvField('01', pixKey);
             
-            let emv = '';
-            emv += emvField('00', '01'); // Payload Format Indicator
-            emv += emvField('26', merchantAccountInfo); // Merchant Account Information
-            emv += emvField('52', '0000'); // Merchant Category Code
-            emv += emvField('53', '986'); // Transaction Currency (986 = BRL)
-            emv += emvField('54', value); // Transaction Amount
-            emv += emvField('58', 'BR'); // Country Code
-            emv += emvField('59', merchantName); // Merchant Name
-            emv += emvField('60', city); // Merchant City
-            emv += emvField('62', emvField('05', txid)); // Additional Data Field
+            let emv = emvField('00', '01') + emvField('26', merchantAccountInfo) + 
+                      emvField('52', '0000') + emvField('53', '986') + emvField('54', value) + 
+                      emvField('58', 'BR') + emvField('59', merchantName) + emvField('60', city) + 
+                      emvField('62', emvField('05', txid)) + '6304';
             
-            // Calcula CRC16
-            emv += '6304';
-            const crc = crc16(emv);
-            emv += crc;
-            
-            return emv;
-        }
+            return emv + crc16(emv);
+        };
 
-        function crc16(str) {
+        const crc16 = str => {
             let crc = 0xFFFF;
             for (let i = 0; i < str.length; i++) {
                 crc ^= str.charCodeAt(i) << 8;
                 for (let j = 0; j < 8; j++) {
-                    if (crc & 0x8000) {
-                        crc = (crc << 1) ^ 0x1021;
-                    } else {
-                        crc = crc << 1;
-                    }
+                    crc = crc & 0x8000 ? (crc << 1) ^ 0x1021 : crc << 1;
                 }
             }
             return (crc & 0xFFFF).toString(16).toUpperCase().padStart(4, '0');
-        }
+        };
 
-        function copyToClipboard(text) {
-            // Usa a API moderna de clipboard
-            if (navigator.clipboard && navigator.clipboard.writeText) {
-                navigator.clipboard.writeText(text).then(() => {
-                    showCopyNotification();
-                }).catch(err => {
-                    // Fallback para método antigo
-                    fallbackCopy(text);
-                });
+        const copyToClipboard = text => {
+            if (navigator.clipboard?.writeText) {
+                navigator.clipboard.writeText(text).then(showCopyNotification, () => fallbackCopy(text));
             } else {
                 fallbackCopy(text);
             }
-        }
+        };
 
-        function fallbackCopy(text) {
+        const fallbackCopy = text => {
             const textarea = document.createElement('textarea');
             textarea.value = text;
-            textarea.style.position = 'fixed';
-            textarea.style.opacity = '0';
+            textarea.style.cssText = 'position:fixed;opacity:0';
             document.body.appendChild(textarea);
             textarea.select();
             try {
@@ -763,31 +724,22 @@
                 alert('Erro ao copiar. Por favor, copie manualmente.');
             }
             document.body.removeChild(textarea);
-        }
+        };
 
-        function showCopyNotification() {
-            const notification = document.getElementById('copyNotification');
-            notification.classList.remove('active'); // Remove primeiro para reiniciar animação
-            setTimeout(() => {
-                notification.classList.add('active');
-            }, 10);
-            setTimeout(() => {
-                notification.classList.remove('active');
-            }, 3000);
-        }
+        const showCopyNotification = () => {
+            copyNotification.classList.remove('active');
+            setTimeout(() => copyNotification.classList.add('active'), 10);
+            setTimeout(() => copyNotification.classList.remove('active'), 3000);
+        };
 
         // Fecha modal ao clicar fora
-        document.getElementById('pixModal').addEventListener('click', function(e) {
-            if (e.target === this) {
-                closePixModal();
-            }
+        pixModal.addEventListener('click', e => {
+            if (e.target === pixModal) closePixModal();
         });
 
         // Permite gerar PIX ao pressionar Enter
-        document.getElementById('pixValue').addEventListener('keypress', function(e) {
-            if (e.key === 'Enter') {
-                generatePix();
-            }
+        pixValue.addEventListener('keypress', e => {
+            if (e.key === 'Enter') generatePix();
         });
     </script>
 </body>