:root{--primary:#7289da;--primary-dark:#5b6eae;--bg-dark:#0f0f10;--bg-medium:#1a1b1e;--bg-light:#252529;--text-bright:#fff;--text-muted:#a0a0a0;--border-color:#333336;--shadow-color:rgba(0,0,0,.5);--transition-speed:0.3s}body{margin:0;font-family:Inter,Segoe UI,Roboto,sans-serif;background-color:var(--bg-dark);color:var(--text-bright);line-height:1.6;transition:background-color var(--transition-speed)}.container{max-width:1325px;margin:0 auto;padding:2rem 1rem}button,input,select{background-color:var(--bg-light);color:var(--text-bright);border:1px solid var(--border-color);padding:.75rem 1rem;margin:.5rem 0;border-radius:6px;transition:all var(--transition-speed);font-size:1rem;box-shadow:0 2px 4px var(--shadow-color)}button:hover,select:hover{border-color:#666;cursor:pointer}button:focus,input:focus,select:focus{outline:none;border-color:#fff;box-shadow:0 0 0 2px hsla(0,0%,100%,.1)}.chat-box{background-color:var(--bg-medium);padding:1rem;border-radius:8px;margin:.25rem 0;min-height:350px;max-height:350px;overflow-y:auto;box-shadow:0 4px 12px var(--shadow-color);border:1px solid var(--border-color);scroll-behavior:smooth}.message{margin-bottom:1.5rem;animation:fadeIn .3s ease;position:relative;transition:all .3s ease}.message:hover{transform:translateX(4px)}.ai-message,.user-message{padding:1rem;border-radius:8px;position:relative;max-width:85%;border:1px solid var(--border-color);box-shadow:0 2px 8px rgba(0,0,0,.1)}.user-message{background-color:#4a4fd1;margin-left:auto;border-bottom-right-radius:2px}.ai-message{background-color:var(--bg-light);margin-right:auto;border-bottom-left-radius:2px}.favorites-list{margin-top:2rem;padding:1rem;border-radius:8px;background-color:hsla(0,0%,8%,.9)}.input-area{display:flex;margin-top:1rem}.message-input{flex:1 1;border-radius:6px;padding:1rem;background-color:var(--bg-light);border:1px solid var(--border-color);color:var(--text-bright);resize:none;max-height:150px}.message-input,.send-button{transition:all 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steps(40)}.image-button{background:transparent;border:none;font-size:1.5rem;cursor:pointer;padding:.5rem;transition:all .3s ease;display:flex;align-items:center;justify-content:center;width:57px;height:57px}.image-button:hover{transform:scale(1.1);background-color:var(--bg-light)}