:root{--amazon-orange: #FF9900;--amazon-orange-dark: #E88B00;--amazon-orange-light: #FFB84D;--amazon-dark: #232F3E;--amazon-dark-light: #37475A;--success: #4CAF50;--error: #F44336;--white: #FFFFFF;--gray-100: #F5F5F5;--gray-200: #EEEEEE;--gray-300: #E0E0E0;--gray-600: #757575;--color-option-a: #E21B3C;--color-option-b: #1368CE;--color-option-c: #D89E00;--color-option-d: #26890C;--session-purple: #46178F;--session-purple-light: #7B2CBF;--font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;--touch-target-min: 48px}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}body{font-family:var(--font-family);background:linear-gradient(135deg,var(--amazon-dark) 0%,var(--amazon-dark-light) 100%);min-height:100vh;color:var(--white)}#root{min-height:100vh}.btn{padding:.75rem 1.5rem;border:none;border-radius:8px;font-size:1rem;font-weight:600;cursor:pointer;transition:all .2s ease;display:inline-flex;align-items:center;justify-content:center;gap:.5rem;font-family:inherit}.btn-primary{background:var(--amazon-orange);color:var(--amazon-dark)}.btn-primary:hover:not(:disabled){background:var(--amazon-orange-dark);transform:translateY(-2px)}.btn-secondary{background:var(--white);color:var(--amazon-dark)}.btn-secondary:hover:not(:disabled){background:var(--gray-200)}.btn-danger{background:var(--error);color:var(--white)}.btn-danger:hover:not(:disabled){background:#d32f2f}.btn-success{background:var(--success);color:var(--white)}.btn:disabled{opacity:.6;cursor:not-allowed;transform:none}.card{background:var(--white);border-radius:16px;padding:1.5rem;color:var(--amazon-dark);box-shadow:0 4px 20px #0003}.input{width:100%;padding:.75rem 1rem;border:2px solid var(--gray-300);border-radius:8px;font-size:1rem;font-family:inherit;color:var(--amazon-dark);background:var(--white);transition:border-color .2s}.input:focus{outline:none;border-color:var(--amazon-orange)}.form-group{margin-bottom:1rem}.form-group label{display:block;margin-bottom:.5rem;font-weight:600;color:var(--amazon-dark)}.container{max-width:1200px;margin:0 auto;padding:1rem;width:100%}.text-center{text-align:center}.mt-1{margin-top:.5rem}.mt-2{margin-top:1rem}.w-full{width:100%}.error-text{color:var(--error);font-size:.9rem;margin-bottom:1rem;text-align:center}.loading{display:flex;align-items:center;justify-content:center;min-height:100vh;font-size:1.5rem;color:var(--amazon-orange)}@keyframes spin{to{transform:rotate(360deg)}}@keyframes float{0%,to{transform:translateY(0)}50%{transform:translateY(-10px)}}@keyframes slideIn{0%{transform:translate(100%);opacity:0}to{transform:translate(0);opacity:1}}.spinner{width:40px;height:40px;border:4px solid rgba(255,255,255,.3);border-top-color:var(--amazon-orange);border-radius:50%;animation:spin 1s linear infinite}@media(max-width:768px){.container{padding:.5rem}.card{padding:1rem}.btn{padding:.6rem 1rem;font-size:.9rem}}