.login-container{display:flex;justify-content:center;align-items:center;min-height:100vh;padding:1rem}.login-card{background:#fff;border-radius:16px;box-shadow:0 20px 60px #0000004d;padding:2.5rem;width:100%;max-width:400px}.login-card h1{color:#667eea;text-align:center;margin-bottom:.5rem;font-size:2rem}.login-subtitle{text-align:center;color:#666;margin-bottom:2rem;font-size:.95rem}.password-input{width:100%;padding:1rem;border:2px solid #e0e0e0;border-radius:8px;font-size:1rem;margin-bottom:1rem;transition:border-color .2s}.password-input:focus{outline:none;border-color:#667eea}.error-message{color:#e74c3c;font-size:.9rem;margin-bottom:1rem;text-align:center}.login-button{width:100%;padding:1rem;background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;border:none;border-radius:8px;font-size:1rem;font-weight:600;cursor:pointer;transition:transform .2s,box-shadow .2s}.login-button:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 10px 20px #667eea66}.login-button:active:not(:disabled){transform:translateY(0)}.login-button:disabled{opacity:.6;cursor:not-allowed}@media (max-width: 480px){.login-card{padding:2rem 1.5rem}.login-card h1{font-size:1.5rem}}.main-menu{padding:2rem}.menu-grid{display:grid;grid-template-columns:1fr;gap:1.5rem}.menu-button{background:#fff;border:2px solid #e0e0e0;border-radius:12px;padding:2rem;cursor:pointer;transition:all .3s;text-align:center;width:100%}.menu-button:hover{transform:translateY(-4px);box-shadow:0 10px 30px #00000026}.menu-button-in:hover{border-color:#4caf50}.menu-button-out:hover{border-color:#f44336}.menu-button-overview:hover{border-color:#2196f3}.menu-icon{font-size:3rem;margin-bottom:1rem}.menu-button h2{color:#333;margin-bottom:.5rem;font-size:1.5rem}.menu-button p{color:#666;font-size:.95rem}@media (min-width: 768px){.menu-grid{grid-template-columns:repeat(3,1fr)}.main-menu{padding:3rem}}.stock-in{padding:1.5rem}.form-group input{width:100%;padding:.875rem;border:2px solid #e0e0e0;border-radius:8px;font-size:1rem;transition:border-color .2s}.form-group input:focus{outline:none;border-color:#667eea}.form-hint{display:block;margin-top:.25rem;color:#666;font-size:.85rem}.submit-button{width:100%;padding:1rem;background:linear-gradient(135deg,#4caf50,#45a049);color:#fff;border:none;border-radius:8px;font-size:1rem;font-weight:600;cursor:pointer;transition:transform .2s,box-shadow .2s}.submit-button:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 10px 20px #4caf5066}.stock-out{padding:1.5rem}.page-header{display:flex;align-items:center;margin-bottom:2rem}.back-button{background:none;border:none;color:#667eea;font-size:1rem;cursor:pointer;padding:.5rem;margin-right:1rem;font-weight:500}.page-header h2{color:#333;font-size:1.5rem}.stock-form{max-width:500px}.form-group{margin-bottom:1.5rem}.form-group label{display:block;margin-bottom:.5rem;color:#333;font-weight:500}.form-group input,.form-group select{width:100%;padding:.875rem;border:2px solid #e0e0e0;border-radius:8px;font-size:1rem;transition:border-color .2s}.form-group input:focus,.form-group select:focus{outline:none;border-color:#667eea}.stock-info{background:#e3f2fd;padding:1rem;border-radius:8px;margin-bottom:1.5rem}.stock-info p{margin-bottom:.5rem;color:#1976d2}.stock-info p:last-child{margin-bottom:0}.error-message{background:#ffebee;color:#c62828;padding:1rem;border-radius:8px;margin-bottom:1rem}.success-message{background:#e8f5e9;color:#2e7d32;padding:1rem;border-radius:8px;margin-bottom:1rem}.submit-button{width:100%;padding:1rem;background:linear-gradient(135deg,#f44336,#d32f2f);color:#fff;border:none;border-radius:8px;font-size:1rem;font-weight:600;cursor:pointer;transition:transform .2s,box-shadow .2s}.submit-button:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 10px 20px #f4433666}.submit-button:disabled{opacity:.6;cursor:not-allowed}.stock-overview{padding:1.5rem}.page-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:2rem;flex-wrap:wrap;gap:1rem}.back-button{background:none;border:none;color:#667eea;font-size:1rem;cursor:pointer;padding:.5rem;font-weight:500}.back-button:hover{text-decoration:underline}.page-header h2{color:#333;font-size:1.5rem;flex:1}.refresh-button{background:#2196f3;color:#fff;border:none;padding:.5rem 1rem;border-radius:8px;cursor:pointer;font-size:.9rem;font-weight:500;transition:background .2s}.refresh-button:hover:not(:disabled){background:#1976d2}.refresh-button:disabled{opacity:.6;cursor:not-allowed}.loading-message{text-align:center;padding:3rem;color:#666;font-size:1.1rem}.empty-state{text-align:center;padding:3rem;color:#666}.empty-state p{font-size:1.1rem;margin-bottom:.5rem}.empty-subtitle{font-size:.95rem;color:#999}.stock-list{display:grid;gap:1rem}.stock-item{background:#f5f5f5;border-radius:12px;padding:1.5rem;border:2px solid #e0e0e0;transition:transform .2s,box-shadow .2s}.stock-item:hover{transform:translateY(-2px);box-shadow:0 5px 15px #0000001a}.stock-item-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:1rem}.stock-item-header h3{color:#333;font-size:1.3rem;margin:0}.stock-badge{background:linear-gradient(135deg,#2196f3,#1976d2);color:#fff;padding:.4rem .8rem;border-radius:20px;font-size:.9rem;font-weight:600}.stock-item-details{display:grid;gap:.75rem}.detail-item{display:flex;justify-content:space-between;align-items:center}.detail-label{color:#666;font-weight:500}.detail-value{color:#333;font-weight:600}@media (min-width: 768px){.stock-list{grid-template-columns:repeat(2,1fr)}}.app{background:#fff;border-radius:16px;box-shadow:0 20px 60px #0000004d;overflow:hidden;min-height:calc(100vh - 2rem)}.app-header{background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;padding:1.5rem;display:flex;justify-content:space-between;align-items:center}.app-header h1{font-size:1.5rem;font-weight:600}.logout-btn{background:#fff3;color:#fff;border:1px solid rgba(255,255,255,.3);padding:.5rem 1rem;border-radius:8px;cursor:pointer;font-size:.9rem;transition:all .2s}.logout-btn:hover{background:#ffffff4d}@media (max-width: 480px){.app-header{padding:1rem}.app-header h1{font-size:1.2rem}.logout-btn{padding:.4rem .8rem;font-size:.8rem}}*{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;padding:1rem}#root{max-width:600px;margin:0 auto}@media (min-width: 768px){body{padding:2rem}#root{max-width:800px}}