:root{--app-blue: #193F6A;--app-blue2: #072E5D;--app-red: #DC344D;--app-red2: #B90B27;--app-teal: #088989;--app-teal2: #35c0c0;--app-gray: #555;--text-color: #16171C;--shadow-color: rgba(25, 63, 106, .3);--field-invalid: #fff9f9}body{color:var(--text-color);background-color:#eef1f8;font-family:Arial,Helvetica,sans-serif}.app-container{max-width:1200px;margin:12px auto;padding:2rem;background:#fff;min-height:80vh;box-shadow:0 4px 15px var(--shadow-color);border-radius:8px}.btn{padding:.75rem 2.5rem;border-radius:4px;font-weight:600;cursor:pointer;transition:all .2s;border:none;color:#fff;background-color:var(--app-blue)}.btn:disabled{cursor:not-allowed;background-color:var(--app-gray)}.btn:not(:disabled):hover{background-color:var(--app-teal);transform:translateY(-1px);box-shadow:0 4px 8px #0000001a}.btn-primary{background-color:var(--app-teal)}.btn-primary:not(:disabled):hover{background-color:var(--app-teal2)}