*{margin:0;padding:0;box-sizing:border-box}body{font-family:Segoe UI,Tahoma,Geneva,Verdana,sans-serif;background:linear-gradient(135deg,#667eea,#764ba2);min-height:100vh;color:#333;line-height:1.6}.container{max-width:600px;margin:0 auto;padding:20px}.header{text-align:center;margin-bottom:30px;color:#fff}.header h1{font-size:2.5rem;margin-bottom:10px;text-shadow:2px 2px 4px rgba(0,0,0,.3)}.header p{font-size:1.1rem;opacity:.9}.feedback-form{background:#fff;padding:40px;border-radius:15px;box-shadow:0 10px 30px #0003}.form-group{margin-bottom:25px}label{display:block;margin-bottom:8px;font-weight:600;color:#555}.required:after{content:" *";color:#ef4444}input,textarea{width:100%;padding:12px 15px;border:2px solid #e1e5e9;border-radius:8px;font-size:16px;transition:all .3s ease;background-color:#fff;font-family:inherit}input:focus,textarea:focus{outline:none;border-color:#667eea;box-shadow:0 0 0 3px #667eea1a}input.valid{border-color:#10b981;background-color:#f0fdf4}input.invalid{border-color:#ef4444;background-color:#fef2f2}.validation-message{font-size:14px;margin-top:5px;min-height:20px}.validation-error{color:#ef4444}.validation-success{color:#10b981}.rating-section{text-align:center;margin:30px 0}.rating-label{font-size:1.1rem;margin-bottom:15px;color:#555}.star-rating{display:flex;justify-content:center;gap:8px;margin-bottom:10px}.star{font-size:2.5rem;cursor:pointer;transition:all .2s ease;color:#d1d5db}.star:hover{transform:scale(1.2)}.star.active{color:#fbbf24}.rating-text{font-size:1rem;color:#6b7280;font-weight:500}.textarea-container{position:relative}.char-counter{position:absolute;bottom:10px;right:15px;font-size:.875rem;color:#6b7280;background:#fff;padding:0 5px}.char-counter.near-limit{color:#f59e0b}.char-counter.over-limit{color:#ef4444}.file-upload{border:2px dashed #d1d5db;border-radius:8px;padding:30px;text-align:center;transition:all .3s ease;cursor:pointer}.file-upload:hover{border-color:#667eea;background-color:#f8faff}.file-upload.dragover{border-color:#667eea;background-color:#e0e7ff}.file-input{display:none}.upload-icon{font-size:3rem;color:#9ca3af;margin-bottom:10px}.upload-text{color:#6b7280;margin-bottom:5px}.upload-hint{font-size:.875rem;color:#9ca3af}.file-preview{margin-top:15px;padding:15px;background:#f8fafc;border-radius:8px;border:1px solid #e2e8f0}.file-info{display:flex;align-items:center;gap:10px}.file-icon{font-size:1.5rem;color:#6b7280}.file-details{flex:1}.file-name{font-weight:500;color:#374151}.file-size{font-size:.875rem;color:#6b7280}.remove-file{background:none;border:none;font-size:1.2rem;color:#ef4444;cursor:pointer;padding:5px;border-radius:4px;transition:background-color .2s}.remove-file:hover{background-color:#fef2f2}.form-actions{display:flex;gap:15px;margin-top:30px}.btn{padding:14px 30px;border:none;border-radius:8px;font-size:16px;font-weight:600;cursor:pointer;transition:all .3s ease;flex:1}.btn-primary{background:linear-gradient(135deg,#667eea,#764ba2);color:#fff}.btn-primary:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 5px 15px #667eea66}.btn-secondary{background:#64748b;color:#fff}.btn-secondary:hover:not(:disabled){background:#475569;transform:translateY(-2px)}.btn:disabled{background:#cbd5e1;cursor:not-allowed;transform:none;box-shadow:none}.loading-spinner{display:inline-block;width:16px;height:16px;border:2px solid #f3f4f6;border-top:2px solid #667eea;border-radius:50%;animation:spin 1s linear infinite;margin-left:8px}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.toast-container{position:fixed;top:20px;right:20px;z-index:1000}.toast{padding:16px 20px;border-radius:8px;margin-bottom:10px;box-shadow:0 4px 12px #00000026;animation:slideIn .3s ease;display:flex;align-items:center;gap:10px;min-width:300px}.toast.success{background:#10b981;color:#fff;border-left:4px solid #059669}.toast.error{background:#ef4444;color:#fff;border-left:4px solid #dc2626}.toast-icon{font-size:1.2rem}@keyframes slideIn{0%{transform:translate(100%);opacity:0}to{transform:translate(0);opacity:1}}.success-message{background:linear-gradient(135deg,#10b981,#34d399);color:#fff;padding:40px;border-radius:15px;text-align:center;box-shadow:0 10px 30px #10b9814d;animation:fadeIn .5s ease}.success-icon{font-size:4rem;margin-bottom:20px}.success-message h3{font-size:1.8rem;margin-bottom:15px}.success-message p{opacity:.9;margin-bottom:25px;font-size:1.1rem}@keyframes fadeIn{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}@media (max-width: 768px){.container{padding:15px}.feedback-form{padding:25px}.header h1{font-size:2rem}.form-actions{flex-direction:column}.star{font-size:2rem}.toast-container{left:20px;right:20px}.toast{min-width:auto}}