*{margin:0;padding:0;box-sizing:border-box}html,body{height:100%;font-family:Arial,sans-serif;background-color:var(--background-color);color:var(--text-color);transition:background-color .3s,color .3s}:root{--background-color: #f4f4f4;--text-color: #212529;--chat-bg: #ffffff;--user-message-bg: #d1e7dd;--user-message-text: #0f5132;--ai-message-bg: #f0f0f0;--ai-message-text: #212529;--button-bg: #007bff;--button-hover-bg: #0056b3;--button-text: #ffffff;--mic-button-bg: #007bff;--mic-recording-bg: #dc3545}[data-theme=dark]{--background-color: #121212;--text-color: #e0e0e0;--chat-bg: #1e1e1e;--user-message-bg: #2e7d32;--user-message-text: #e8f5e9;--ai-message-bg: #2c2c2c;--ai-message-text: #e0e0e0;--button-bg: #1e88e5;--button-hover-bg: #1565c0;--button-text: #ffffff;--mic-button-bg: #1e88e5;--mic-recording-bg: #e53935}body{display:flex;flex-direction:column;height:100vh;margin:0}.header-bar{display:flex;justify-content:space-between;align-items:center;padding:10px 20px;background-color:var(--chat-bg);border-bottom:1px solid #ddd;box-shadow:0 2px 4px #0000001a;height:60px}.logo-container{display:flex;align-items:center}.logo{height:25px}.theme-toggle{background:none;border:none;cursor:pointer;padding:5px;border-radius:50%;transition:background-color .3s ease}.theme-toggle:hover{background-color:#0000001a}.theme-icon{font-size:24px;color:var(--button-bg)}.chat-container{display:flex;flex-direction:column;flex-grow:1;width:90%;margin:0 auto;padding:10px 20px;background-color:var(--chat-bg);border-left:1px solid #ddd;border-right:1px solid #ddd;box-shadow:0 2px 4px #0000001a}.chat-messages{flex-grow:1;overflow-y:auto;padding:10px;background-color:var(--chat-bg);border-radius:8px;box-shadow:inset 0 2px 4px #0000001a;margin-bottom:10px;scrollbar-width:thin;scrollbar-color:var(--button-bg) var(--chat-bg)}.chat-messages::-webkit-scrollbar{width:8px}.chat-messages::-webkit-scrollbar-thumb{background-color:var(--button-bg);border-radius:10px}.chat-messages::-webkit-scrollbar-track{background:var(--chat-bg)}.message{margin-bottom:12px;max-width:80%;word-wrap:break-word;padding:8px 12px;border-radius:16px;font-size:14px;line-height:1.5}.user-message{background-color:var(--user-message-bg);color:var(--user-message-text);align-self:flex-end;text-align:right;margin-left:auto}.ai-message{background-color:var(--ai-message-bg);color:var(--ai-message-text);align-self:flex-start}.chat-form{display:flex;align-items:center;gap:10px;padding:10px 0;background-color:var(--chat-bg);border-top:1px solid #ddd;box-shadow:0 -2px 4px #0000001a}textarea{flex-grow:1;padding:10px;border:1px solid #ddd;border-radius:8px;font-size:14px;resize:none;overflow-y:auto;height:40px;max-height:150px;transition:height .2s ease;line-height:1.5}button{all:unset;cursor:pointer}button:hover ion-icon{transform:scale(1.1);transition:transform .3s ease}button:disabled{background-color:#6c757d;cursor:not-allowed}.mic-button{display:flex;align-items:center;justify-content:center;width:50px;height:50px;background-color:var(--mic-button-bg);color:var(--button-text);border:none;border-radius:50%;box-shadow:0 2px 5px #0000001a;cursor:pointer;transition:background-color .3s ease,transform .2s ease}.mic-button:hover{background-color:var(--button-hover-bg);transform:scale(1.1)}.mic-button.recording{background-color:var(--mic-recording-bg);animation:pulse 1.5s infinite}.mic-icon{font-size:24px;color:var(--button-text)}.mic-button.recording .mic-icon{color:#fff}@keyframes pulse{0%{box-shadow:0 0 10px #dc354599}50%{box-shadow:0 0 20px #dc3545cc}to{box-shadow:0 0 10px #dc354599}}.footer-bar{text-align:center;padding:10px;background-color:var(--chat-bg);border-top:1px solid #ddd;box-shadow:0 -2px 4px #0000001a;font-size:14px;color:var(--text-color)}