*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;background:linear-gradient(135deg,#667eea,#764ba2);min-height:100vh}#root{min-height:100vh}.container{max-width:1200px;margin:0 auto;padding:20px}.card{background:#fff;border-radius:12px;padding:30px;box-shadow:0 10px 30px #0000001a;margin-bottom:20px}.btn{padding:12px 24px;border:none;border-radius:6px;font-size:16px;font-weight:600;cursor:pointer;transition:all .3s ease}.btn-primary{background:#667eea;color:#fff}.btn-primary:hover{background:#5568d3;transform:translateY(-2px);box-shadow:0 5px 15px #667eea66}.btn-secondary{background:#f3f4f6;color:#374151}.btn-secondary:hover{background:#e5e7eb}.btn-danger{background:#ef4444;color:#fff}.btn-danger:hover{background:#dc2626}.input{width:100%;padding:12px;border:2px solid #e5e7eb;border-radius:6px;font-size:16px;transition:border-color .3s ease}.input:focus{outline:none;border-color:#667eea}.form-group{margin-bottom:20px}.form-group label{display:block;margin-bottom:8px;font-weight:600;color:#374151}.error{color:#ef4444;font-size:14px;margin-top:5px}.success{color:#10b981;font-size:14px;margin-top:5px}h1,h2,h3{color:#1f2937;margin-bottom:20px}.header{display:flex;justify-content:space-between;align-items:center;margin-bottom:30px;padding:20px;background:#fff;border-radius:12px;box-shadow:0 2px 10px #0000000d}.time-slot{padding:10px;margin:5px 0;border-radius:6px;display:flex;justify-content:space-between;align-items:center;background:#f9fafb;border:1px solid #e5e7eb}.time-slot.busy{background:#fee2e2;border-color:#fca5a5}.available-day{background:#d1fae5;padding:15px;border-radius:8px;margin:10px 0;border-left:4px solid #10b981}.loading{text-align:center;padding:40px}.spinner{border:4px solid #f3f4f6;border-top:4px solid #667eea;border-radius:50%;width:40px;height:40px;animation:spin 1s linear infinite;margin:0 auto}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}